Table of Contents
Overview
Definition and Scope
Molecular genetics is a specialized branch of genetics that focuses on the structure and function of genes at the molecular level. It investigates the chemical and physical nature of genes and the mechanisms through which they control various biological processes, including development, growth, and physiology.[2.1] This field merges several sub-disciplines of biology and employs an investigative approach to elucidate how variations in DNA structure or expression lead to differences among organisms.[4.1] One of the key aspects of molecular genetics is its application in genetic engineering, which involves the direct manipulation of an organism's genome. This technique has become a powerful tool for identifying genetic products and understanding the underlying genetic basis of traits and diseases.[2.1] Furthermore, molecular genetics plays a crucial role in elucidating the complexities of genetic variation, including how single-gene variants can influence traits such as blood types and the inheritance patterns of various genetic diseases.[5.1] Understanding these genetic variations is essential for advancing clinical care and applying genetic information effectively in medical contexts.[5.1]Key Components and Concepts
Molecular genetics is a pivotal branch of biology that delves into the structure and function of genes at a molecular level, significantly enhancing our comprehension of genetic mechanisms and their implications across various scientific fields, including medicine, agriculture, and biotechnology.[6.1] One of the most transformative advancements in this domain is CRISPR technology, which facilitates precise genetic modifications, thereby enabling the development of personalized treatments tailored to an individual's unique genetic makeup. This technology holds promise for revolutionizing the treatment of genetic disorders, cancer, and infectious diseases, marking a new era in medical interventions that aim to improve health outcomes and quality of life.[7.1] Personalized medicine, often referred to as precision or stratified medicine, is a medical paradigm that seeks to enhance individual health by customizing treatments based on each person's unique genomic information. This approach extends beyond disease treatment to encompass early detection and prevention strategies. Modern advancements in personalized medicine heavily rely on genome sequencing technologies that analyze fundamental biological components such as DNA, RNA, and proteins, allowing for more accurate disease diagnoses and the identification of previously unknown genetic variants.[8.1] The integration of molecular genetics into personalized medicine is further exemplified by the application of single-cell omics, which has unveiled significant heterogeneity in genomics, transcriptomics, and epigenomics. This has profound implications for treatment strategies, particularly in oncology, where understanding individual genetic profiles can inform preventive measures and therapeutic options, including gene editing techniques.[9.1] The mainstreaming of genetic testing into routine clinical practice, as highlighted in reports from the Chief Medical Officer and NHS England, underscores the growing importance of genomics in healthcare, particularly for individuals with rare diseases or cancer.[10.1] Techniques such as CRISPR gene editing and methylation sequencing are instrumental in enhancing our understanding of gene function and regulation. CRISPR allows for targeted modifications within the genome, while methylation sequencing provides insights into gene regulation by mapping DNA methylation patterns, which influence gene activity under various biological conditions.[13.1] Additionally, single-cell profiling techniques, including single-cell RNA sequencing, have revolutionized the study of transcription by enabling the examination of gene expression at the individual cell level, revealing previously obscured cellular states and transcriptional programs.[14.1]History
Milestones in Molecular Genetics
The origins of molecular genetics can be traced back to Gregor Mendel's memoir on plant hybridization published in 1865, which laid the groundwork for the science of heredity. However, the term 'genetics' was not coined until 1906, marking the formal establishment of this field as a distinct discipline focused on heredity and variation among organisms.[46.1] A significant milestone in molecular genetics was Friedrich Miescher's discovery of DNA in 1869, which represented a pivotal shift from classical Mendelian genetics to a molecular understanding of heredity. This discovery has had profound implications for biological research and technology, influencing advancements in medicine, agriculture, and forensic science.[49.1] The completion of the Human Genome Project, alongside advancements in computer technology, made genetic testing methods more accessible and feasible, even for smaller laboratories. This period saw the rapid development of new techniques, such as array-based comparative genomic hybridization, which improved the evaluation of chromosomal rearrangements.[48.1] Additionally, the establishment of polymerase chain reaction (PCR) technology enabled the amplification of specific DNA sequences, significantly enhancing the speed and accuracy of genetic testing.[58.1] Molecular genetics has also evolved through the understanding of gene expression and regulation. Epigenetic modifications, such as DNA methylation and histone modification, have been identified as crucial factors influencing gene expression without altering the underlying DNA sequence. These modifications can be induced by various environmental factors and play a vital role in cellular differentiation and development.[55.1] The study of these epigenetic mechanisms has further enriched the field, highlighting the complexity of genetic regulation and its implications for genetic diversity within populations.[57.1]In this section:
Recent Advancements
Technological Innovations
Recent advancements in molecular genetics have been significantly driven by technological innovations that enhance our understanding and manipulation of genetic material. One of the most transformative technologies is Next-Generation Sequencing (NGS), which has revolutionized genomics research by enabling high-throughput and cost-effective analysis of DNA and RNA molecules. NGS allows for the simultaneous sequencing of millions of DNA fragments, providing comprehensive insights into genome structure, genetic variations, gene expression profiles, and epigenetic modifications. This technology has expanded the scope of genomics research, facilitating studies on rare genetic diseases, cancer genomics, microbiome analysis, infectious diseases, and population genetics.[84.1] The development of CRISPR-Cas9 gene editing technology represents another significant advancement in molecular genetics. This innovative tool allows researchers to edit specific portions of the genome by removing, inserting, or modifying DNA sequence segments with high precision. The CRISPR-Cas9 system can differentiate between self and non-self DNA, ensuring targeted editing while preserving the host's genetic integrity. This capability has opened new avenues for correcting disease-causing mutations and has broad applications in genetic research and therapy.[94.1] Furthermore, the integration of artificial intelligence (AI) and machine learning (ML) into bioinformatics has enhanced the interpretation of NGS data. These technologies facilitate the analysis of large-scale genetic sequence datasets, which can inform the development of more accurate genome editing technologies and personalized medicine approaches. AI and ML applications in molecular genetics include automated classification of cells and chromosomes, as well as predictive modeling to assess potential off-target effects of genome editing.[105.1] The combination of these technological innovations is poised to significantly impact future research and clinical applications in molecular genetics, leading to more effective treatments and a deeper understanding of genetic disorders.[104.1]Applications in Medicine
Recent advancements in molecular genetics have led to significant applications in medicine, particularly through the use of gene therapy and genome editing technologies such as CRISPR/Cas9. Gene therapy has emerged as a promising approach to treat genetic disorders by directly modifying the genetic material of patients. However, this innovation raises important ethical considerations, including patient rights and societal impacts, necessitating a careful balance between scientific progress and moral standards.[87.1] The ethical implications surrounding gene therapy require ongoing dialogue to ensure that advancements are made responsibly and with public trust.[89.1] CRISPR/Cas9 technology has revolutionized the field of genetic editing, allowing for precise alterations in an organism's DNA. This technology has been utilized in various applications, including cancer research, where it has facilitated the introduction of mutations in multiple genes associated with diseases such as colorectal cancer.[92.1] The ability to conduct genome-wide screenings using CRISPR/Cas9 has uncovered key genes involved in disease mechanisms, enhancing our understanding of conditions like cancer and viral infections.[92.1] Furthermore, advancements in CRISPR technology have led to the development of sophisticated mouse models that enable researchers to study complex genetic interactions and their implications for various diseases.[93.1] In addition to therapeutic applications, genetic testing has become increasingly integrated into healthcare, with genetic counselors playing a crucial role in patient education and decision-making. As the field of molecular genetics evolves, the responsibilities of genetic counselors are expanding beyond traditional roles, emphasizing their importance as providers of psychological support and information to families navigating genetic conditions.[95.1] This evolution reflects the growing recognition of the need for comprehensive care that addresses both the technical and emotional aspects of genetic disorders.In this section:
Technological InnovationsNext-Generation SequencingGenome StructureCancer GenomicsMicrobiome
Genetic Techniques
DNA/RNA Manipulation Techniques
Molecular genetics employs a variety of DNA and RNA manipulation techniques that are essential for isolating, analyzing, and modifying genetic material. Among the foundational techniques are agarose gel electrophoresis, which is routinely used for the separation and purification of specific DNA fragments, and nucleic acid blotting techniques, which facilitate the detection of specific sequences within nucleic acids.[131.1] Additionally, the isolation and purification of nucleic acids are critical for subsequent analyses and applications in genetic research.[131.1] DNA sequencing is another pivotal technique in molecular genetics, allowing scientists to read the sequence of target DNA fragments. This technique has evolved significantly, with various sequencing platforms available, each offering unique advantages and capabilities.[130.1] The emergence of next-generation sequencing (NGS) technologies has transformed genetic diagnosis by enabling syndrome-based diagnostic gene panel sequencing, diagnostic exome sequencing, and diagnostic genome sequencing, thereby enhancing the accuracy of identifying genetic disorders.[141.1] Furthermore, the CRISPR/Cas system has revolutionized genetic manipulation by providing precise genome editing capabilities. CRISPR technology not only allows for the modification of genetic sequences but also enhances the detection of genetic mutations with high sensitivity and specificity, making it a powerful tool for point-of-care testing in low-resource environments.[139.1] The versatility of CRISPR-based diagnostics is evident in its applications for detecting a wide range of molecular targets relevant to human health.[139.1]Gene Editing Technologies
Gene editing technologies have emerged as transformative tools in the field of molecular genetics, enabling precise modifications to the DNA of organisms. One of the most notable advancements in this area is the CRISPR-Cas9 system, which allows scientists to make targeted changes to the genome with unprecedented accuracy and efficiency. This technology has shown remarkable potential in curing genetic diseases and improving human health, thereby paving the way for a future where customized healthcare becomes the norm.[164.1] In addition to its applications in healthcare, gene editing is revolutionizing agriculture and food production. Through extensive research and technological advancements, scientists are manipulating the genetic makeup of various organisms to create stress-tolerant crops and enhance food security.[164.1] The integration of synthetic biology into genetic engineering further amplifies these possibilities, as it allows for the design and construction of synthetic genomes. This approach not only aids in understanding fundamental questions of genome function but also facilitates the engineering of organisms for diverse applications, including the bioproduction of high-value chemicals and advanced cell therapies.[165.1] Moreover, the future of genetic engineering is expected to be shaped by ongoing advancements in synthetic biology, which offers revolutionary possibilities across multiple sectors, including healthcare and environmental sustainability. As researchers continue to explore the potential of synthetic biology, they are likely to develop innovative methods that utilize automation, deep learning, and evolutionary control to enhance gene editing capabilities.[163.1] This synergy between synthetic biology and genetic engineering is anticipated to yield significant breakthroughs, addressing some of humanity's most pressing challenges.In this section:
Molecular Mechanisms
Gene Regulation and Expression
Gene regulation and expression are fundamental processes in molecular genetics that determine how genes are turned on or off, influencing the development, growth, and physiology of organisms. The central dogma of molecular biology outlines the two primary steps in gene expression: transcription and translation. During transcription, DNA is transcribed into messenger RNA (mRNA), which is then translated into proteins. This process is tightly regulated and involves several key mechanisms, including post-transcriptional modifications that enhance the efficiency and diversity of protein synthesis.[181.1] Post-transcriptional modifications, such as alternative splicing, capping, polyadenylation, and RNA editing, play a crucial role in regulating gene expression. These modifications can influence translation initiation, the process by which ribosomes bind to mRNA to begin protein synthesis, thereby impacting various cellular processes.[181.1] Additionally, the interaction between transcription and translation is significant; recent studies have shown that translating ribosomes can stimulate RNA polymerase to enhance transcription rates, indicating a cooperative relationship between these two processes.[180.1] Molecular genetics also employs investigative approaches to understand the structure and function of genes within an organism's genome. This field merges various sub-disciplines to explore how differences in DNA structure and expression manifest as phenotypic variation among organisms.[178.1] The ability to detect genetic alterations at the molecular level has revolutionized laboratory medicine and our understanding of disease mechanisms.[177.1]Genetic Mutations and Phenotypes
Genetic mutations play a crucial role in the molecular mechanisms of transcription and translation, significantly impacting gene expression and phenotypic variation. The central dogma of molecular biology describes the flow of genetic information from DNA to RNA (transcription) and from RNA to protein (translation).[201.1] Mutations in the DNA sequence can disrupt these processes, leading to alterations in the resulting RNA and protein products.[202.1] For instance, a mutation may affect the binding of RNA polymerase during transcription, potentially resulting in incomplete or erroneous RNA transcripts.[200.1] Moreover, the implications of these mutations extend beyond mere changes in sequence; they can lead to phenotypic variations that manifest as different traits or diseases in an organism. The accuracy of transcription and translation is vital for maintaining normal cellular function, and any disruption can result in dysfunctional proteins that may contribute to various genetic disorders.[199.1] Thus, understanding the molecular mechanisms underlying transcription and translation is essential for elucidating how specific mutations can lead to observable changes in phenotype and contribute to the development of genetic diseases.[202.1]Interdisciplinary Connections
Relationship with Other Biological Fields
Interdisciplinary approaches are increasingly recognized as essential in the field of molecular genetics, particularly in enhancing the understanding and application of genomic medicine. A significant aspect of these efforts is the establishment of multi-disciplinary teams (MDTs) that facilitate the selection, processing, interpretation, and return of genomic data, thereby promoting patient benefit through genome-scale sequencing in clinical settings.[222.1] The integration of various disciplines allows for a comprehensive assessment of molecular signatures and their associations with clinical phenotypes, which is crucial for improving diagnosis and prognosis in patients.[220.1] Moreover, the dynamic nature of molecular interactions necessitates collaboration across fields such as chemistry, biology, and bioinformatics. Factors like temperature, pH, and ionic strength play critical roles in biological modeling, underscoring the need for interdisciplinary expertise to accurately predict biological behavior.[219.1] This collaborative framework is further supported by the recognition that traditional training often limits graduate students to singular disciplines, which can hinder innovation in biological research.[221.1] In the realm of personalized medicine, the integration of molecular genetics with bioinformatics and computational biology has led to significant advancements. For instance, whole-genome sequencing (WGS) provides comprehensive genetic information that aids in identifying mutations associated with drug responses, thereby enhancing the precision of treatment strategies.[226.1] The application of advanced computational methods, including machine learning and artificial intelligence, has shown promise in analyzing large datasets to predict drug responses and identify novel therapeutic targets.[226.1] Furthermore, the emergence of -omics sciences, such as genomics, transcriptomics, and proteomics, highlights the importance of a holistic approach to understanding complex biological systems.[225.1] By leveraging integrative bioinformatics, researchers can develop targeted therapies and optimize drug regimens, ultimately leading to improved patient outcomes.[226.1] The collaboration between academia and industry also plays a vital role in bridging the gap between research and practical applications in drug discovery, fostering a better understanding of market needs and patient impact.[224.1]Impact on Biotechnology and Medicine
Interdisciplinary approaches in molecular genetics have significantly impacted biotechnology and medicine, particularly through the integration of genomic medicine and the development of personalized therapies. A primary goal of these interdisciplinary efforts is to identify novel associations between molecular signatures and clinical phenotypes, which can enhance diagnosis and prognosis in medical practice.[228.1] The implementation of genomic multidisciplinary teams (MDTs) has shown high levels of acceptability and adoption, although challenges exist regarding the roles of team members and the balance between efficiency and quality in clinical decision-making.[230.1] These teams facilitate improved collaboration, research, and education, which are essential for the mainstreaming of genomics in precision medicine.[229.1] Education plays a crucial role in the successful implementation of genomic medicine, as effective training for health professionals is necessary to navigate the complexities of genomic testing.[231.1] Programs designed to address the educational needs of non-genetics professionals are increasingly being developed, ensuring that a broader range of healthcare providers can contribute to genomic medicine.[231.1] Furthermore, students in interdisciplinary programs can choose courses that align with their interests, such as population genetics or bioinformatics, and engage in laboratory rotations across various departments, fostering a comprehensive understanding of molecular genetics.[232.1] The completion of the Human Genome Project has transformed biomedical research, shifting the focus of genetics from rare disorders to a broader application of genetic information across various medical fields.[246.1] This shift has enabled the classification of diseases and stratification of patients based on molecular profiles, which is critical for implementing tailored therapeutic approaches that maximize treatment efficacy while minimizing adverse effects.[247.1] The advent of molecular therapeutics, which utilizes insights from genetics and biomarkers, heralds a new era of precision medicine applicable to a wide range of conditions, including cancer and autoimmune disorders.[247.1] Moreover, the integration of artificial intelligence (AI) into pharmacogenomics is revolutionizing personalized medicine by optimizing drug therapy and minimizing adverse reactions.[248.1] AI's ability to analyze complex genomic data enhances treatment decisions, marking a significant advancement in patient-centered care.[248.1] As genomic medicine continues to evolve, the collaboration between bioinformatics and clinical researchers is essential for translating genomic insights into clinical practice, particularly in identifying novel biomarkers for disease.[256.1] This collaboration is vital for developing effective strategies for early detection and intervention, ultimately improving patient outcomes in the healthcare system.[255.1]In this section:
Ethical Considerations
Ethical Implications of Genetic Research
In the realm of molecular genetics, ethical implications are paramount, particularly concerning the protection of participant privacy in genomic research. The ethical considerations in this field often revolve around the involvement of living human and animal subjects, necessitating a robust framework to safeguard their rights and confidentiality.[258.1] As genetic testing becomes increasingly prevalent, it raises significant ethical, legal, and social implications (ELSI) that must be addressed. These implications include the circumstances under which tests should be utilized, the implementation processes, and the potential uses of test results.[259.1] A critical aspect of these ethical considerations is the principle of autonomy, which emphasizes the right of individuals to make informed choices regarding their participation in genetic testing. This includes the right to refuse testing and the necessity for informed consent, which should be obtained through a process that ensures participants fully understand the implications of the tests.[262.1] However, there is a notable lack of consensus within the genetics community regarding what constitutes adequate informed consent, particularly in the context of genomic sequencing.[264.1] This challenge is compounded by the need for genetic counselors to educate both patients and healthcare providers about the complexities of genetic testing and the potential for unexpected findings, such as variants of unknown significance (VUS).[265.1] Moreover, the intersection of genetics with public health introduces additional ethical dilemmas, particularly concerning the reporting of individual research results and the allocation of resources. These issues highlight the delicate balance between public health interests and individual privacy rights.[261.1] The ethical landscape is further complicated by the potential for genetic test results to be disclosed to third parties, such as employers or insurers, raising concerns about discrimination based on genetic information.[267.1]Regulatory Frameworks and Guidelines
Current regulatory frameworks governing genetic data are crucial for safeguarding individual rights and addressing ethical dilemmas associated with molecular genetics. In the United States, the Health Insurance Portability and Accountability Act (HIPAA) and the Genetic Information and Nondiscrimination Act (GINA) serve as foundational legal protections. HIPAA regulates the privacy and security of health information, while GINA specifically prohibits discrimination based on genetic information in employment and health insurance contexts, thereby extending protections beyond those offered by HIPAA.[277.1] Despite these existing frameworks, challenges remain in ensuring comprehensive protection against the misuse of genetic data. For instance, while GINA applies to a broader range of entities than HIPAA, it does not cover life insurance, disability insurance, or long-term care insurance, leaving gaps in protection.[277.1] Furthermore, the case of 23andMe illustrates the limitations of current regulations, as the company was not required to comply with HIPAA when sharing genomic data with third parties, highlighting the need for a more robust legal framework governing data collection and sharing practices.[278.1] To enhance protections for individuals, several key recommendations have been proposed. These include ensuring detailed transparency regarding the collection, use, sharing, and retention of genetic data, as well as requiring separate consent for the transfer of genetic data to third parties.[279.1] Additionally, there is a call for educational resources to inform consumers about the risks and benefits of genetic testing, as well as rights related to access, correction, and deletion of their genetic data.[279.1] Other recommendations advocate for a ban on sharing genetic data without consent and the implementation of strong data security measures.[279.1]In this section:
References
[2] Molecular Genetics - an overview | ScienceDirect Topics — Molecular genetics (MG) is a scientific discipline concerned with the structure and function of genes at the molecular level and includes the technique of genetic engineering, which can be defined as the direct manipulation of an organism's genome. ... Summary. Molecular genetics provide a powerful tool for identification of products derived
[4] Molecular genetics - Definition and Examples - Biology Online — Molecular genetics - Definition and Examples - Biology Online Dictionary Dictionary > Molecular genetics Molecular genetics A branch of genetics that deal with the structure and function of genes at a molecular level Molecular genetics, in particular, is a study of heredity and variation at the molecular level. genetics GENETICS – CROSSWORD PUZZLE (pdf)GENETICS – CROSSWORD PUZZLEGenetics: the study of the patterns of inheritance of specific traits, relating to genes and genetic information. Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and Variation Fields of Genetics: Mendelian Genetics Molecular Genetics Fundamental Concepts: The Cell The Nucleus DNA Genes Alleles Chromosomes GENETICS – CROSSWORD PUZZLE (pdf) GENETICS – CROSSWORD PUZZLE Genetics: the study of the patterns of inheritance of specific traits, relating to..
[5] Genetics 101 - Understanding Genetics - NCBI Bookshelf — For example, genetic variants in a single gene account for the different blood types A, B, AB, and O. Understanding the clinical significance of genetic variation is a complicated process due to the limited knowledge of which genes are involved in a disease or condition, and the multiple gene-gene and gene-behavior-environment interactions likely to be involved in complex, chronic diseases. Single-gene diseases are usually inherited in one of several patterns depending on the location of the gene (i.e., chromosomes 1-22 or X and Y) and whether one or two normal copies of the gene are needed for normal protein activity. Chapter 1Genetics 101
[6] Molecular Genetics Review Key Concepts or short review - Studocu — Molecular Genetics Review: Key Concepts Molecular genetics is a branch of biology that focuses on the structure and function of genes at a molecular level. This field has revolutionized our understanding of how genes work and has contributed significantly to advancements in various scientific disciplines, including medicine, agriculture, and biotechnology. Here are some key concepts to review:
[7] CRISPR and Gene Editing: The Future of Personalized Medicine — CRISPR technology is at the forefront of this transformation, enabling the development of customized treatments based on a patient’s unique genetic makeup. One of the most promising applications of CRISPR in personalized medicine is in the treatment of genetic disorders. In conclusion, CRISPR represents a transformative tool in the field of personalized medicine, with the potential to revolutionize the treatment of genetic disorders, cancer, infectious diseases, and beyond. By enabling precise genetic modifications, CRISPR paves the way for customized therapies that align with the unique genetic profiles of individual patients, heralding a new era in medical treatment that promises to improve health outcomes and enhance quality of life.
[8] The Future of Healthcare: How Personalized Medicine Is Transforming ... — Personalized medicine, sometimes referred to as “precision medicine” or “stratified medicine”, is a medical paradigm that aims to improve individual health by carefully tailoring treatments based on each person’s unique prognostic or genomic information.1 It is not limited to the treatment of diseases but also plays a key role in the early detection and prevention of diseases.2 Modern advancements in personalized medicine are heavily reliant on technologies like Genome Sequencing methods that analyze a patient’s fundamental biology such as DNA, RNA and proteins, to diagnose diseases more accurately.3 These techniques can identify genetic variants that were previously unknown, offering opportunities to explore alternative treatment options.
[9] Personalized medicine: the future is here - PMC — Surprisingly, single-cell omics revealed a significant heterogeneity of genomics, transcriptomics, and epigenomics, dramatically challenging our current concept of treatment, particularly in cancer. Cell therapy is already taking a significant place in the personalized medicine concept, particularly in patients with cancer. For the patients themselves, this information can be important for preventing diseases by knowing ahead of time that they carry a gene with a certain risk for a certain disease development (for example, BRCA1, mutated p53, or RAS). The disease can be a mutation – far from the clinical disease that develops decades down the road and therefore far from the sick patient in the hospital, and the treatment in these cases can be gene editing rather than a drug, surgery, irradiation, or cell therapy.
[10] The rise of the genome and personalised medicine - PMC — As set out in the Annual report of the Chief Medical Officer 2016: Generation Genome_1 and the recent NHS England board paper _Creating a genomic medicine service to lay the foundations to deliver personalised interventions and treatments,2 the increasing ‘mainstreaming’ of genetic testing into routine practice and plans to embed whole genome sequencing in the NHS mean that the profile and importance of genomics is on the rise for many clinicians. Every human genome contains around 3–5 million genetic variants compared with the reference sequence. Genomic medicine has the capacity to revolutionise the healthcare of an individual with a rare disease or cancer by offering prompt and accurate diagnosis, risk stratification based upon genotype and the capacity for personalised treatments.
[13] Methylation Sequencing: A Molecular Look into Gene Regulation — Methylation sequencing maps DNA methylation patterns across the genome, providing insights into gene regulation under different biological conditions. Purpose of Methylation Sequencing DNA methylation, a critical epigenetic modification, influences gene activity by adding methyl groups to cytosine bases, primarily at CpG dinucleotides.
[14] Model of Transcription: Insights into Gene Regulation — Published Time: 2025-03-14T20:06:21+00:00 Botany and Plant Sciences Published Mar 14, 2025 These sequences, found in non-coding regions of the genome, interact with transcription factors to either enhance or repress transcription. Single-cell profiling techniques, such as single-cell RNA sequencing (scRNA-seq) and single-cell ATAC-seq, have revolutionized transcription studies by examining gene expression at an individual cell level. This approach has revealed rare cell states and transient transcriptional programs that were previously obscured. Beyond individual gene expression patterns, single-cell approaches have illuminated how transcriptional regulation is influenced by chromatin accessibility and spatial organization. This has been particularly valuable in understanding how environmental factors, such as inflammation or hypoxia, reshape chromatin landscapes to drive context-dependent transcriptional responses. Mar 14, 2025 Mar 17, 2025
[46] From Mendel to epigenetics: History of genetics - ScienceDirect — The origins of genetics are to be found in Gregor Mendel's memoir on plant hybridization (1865). However, the word 'genetics' was only coined in 1906, to designate the new science of heredity. Founded upon the Mendelian method for analyzing the products of crosses, this science is distinguished by its explicit purpose of being a general 'science of heredity', and by the introduction of
[48] Evolution of Genetic Techniques: Past, Present, and Beyond — Moreover, genetic testing methods have become widely accessible and feasible to perform even for small size laboratories in particular after the completion of Human Genome Project, which coincided with developments in computer technology. The discovery of DNA and chromosomes paved the way for the rapid improvement in genetics and establishment of new technologies that have taken place over the last 50 years. Being time-consuming and expensive to evaluate chromosomal rearrangements in the whole genome by FISH led to the development of new techniques such as array-based comparative genomic hybridization [33–35]. Molecular genetic techniques were rapidly developed after the establishment of polymerase chain reactions that enabled generating thousands to millions of copies of a particular DNA sequence .
[49] The History of Molecular Biology: Pioneers and Discoveries — Friedrich Miescher’s groundbreaking discovery of DNA in 1869 laid the foundational stones for modern molecular biology, marking a significant turning point in the field of genetics. Miescher’s early encounter with DNA underscores a pivotal moment in the shift from classical Mendelian genetics to a more comprehensive molecular understanding of heredity, which continues to influence biological research and our comprehension of life itself in profound ways. Such milestones underscore the profound implications of molecular genetics on contemporary research and technology, highlighting how discoveries in this field have led to innovations in medicine, agriculture, and even forensic science, thereby changing our approach to various challenges and enhancing our ability to manipulate biological systems for future advancements.
[55] Genetics, Epigenetic Mechanism - StatPearls - NCBI Bookshelf — Introduction Epigenetics is the study of heritable and stable changes in gene expression that occur through alterations in the chromosome rather than in the DNA sequence. Despite not directly altering the DNA sequence, epigenetic mechanisms can regulate gene expression through chemical modifications of DNA bases and changes to the chromosomal superstructure in which DNA is packaged. These epigenetic modifications can be induced by several factors including age, diet, smoking, stress, and disease state. Three different epigenetic mechanisms have been identified: DNA methylation, histone modification, and non-coding RNA (ncRNA)-associated gene silencing. Catalyzed by DNA methyltransferase enzymes, DNA methylation involves the addition of a methyl group directly to a cytosine nucleotide within a cytosine-guanine sequence (CpG), which are often surrounded by other CpG’s forming a CpG island.
[57] The Effects of De Novo Mutation on Gene Expression and the Consequences ... — We observed that the amount of genetic variance in gene expression created by mutation (V m) was similar to the variance that mutation generates in typical polygenic phenotypic traits and approximately 15-fold the variance seen in the limited species where V m in gene expression has been estimated. Despite the clear effect of mutation on
[58] PCR Machines: The Backbone of Genetic Testing and Its Future in ... — The importance of PCR machines in genetic testing cannot be overstated. These machines have broadened the scope of diagnosable conditions and considerably improved the speed and accuracy of genetic diagnoses. More directly: PCR machines have become the backbone of genetic testing. Moreover, the role of PCR machines isn't confined to genetic
[84] Next-Generation Sequencing Technology: Current Trends and Advancements — Abstract The advent of next-generation sequencing (NGS) has brought about a paradigm shift in genomics research, offering unparalleled capabilities for analyzing DNA and RNA molecules in a high-throughput and cost-effective manner. This transformative technology has swiftly propelled genomics advancements across diverse domains. NGS allows for the rapid sequencing of millions of DNA fragments simultaneously, providing comprehensive insights into genome structure, genetic variations, gene expression profiles, and epigenetic modifications. The versatility of NGS platforms has expanded the scope of genomics research, facilitating studies on rare genetic diseases, cancer genomics, microbiome analysis, infectious diseases, and population genetics. This review provides an insightful overview of the current trends and recent advancements in NGS technology, highlighting its potential impact on diverse areas of genomic research.
[87] Ethics of Gene Therapy: Balancing Progress and Morality — Adhering to these principles helps navigate the complex ethical landscape of gene manipulation and therapy, facilitating progress while upholding moral values and ensuring responsible advancements in genetic treatment. The ethical implications surrounding gene therapy and genetic manipulation require careful consideration to strike a balance between the potential for progress and the preservation of moral standards. This section aims to critically evaluate the morality of gene manipulation by considering societal values, ethical principles, and the potential consequences of genetic editing. The public’s perspective on the moral and ethical considerations surrounding genetic manipulation and treatment is a critical aspect to consider as we navigate the advancements in gene editing and therapy.
[89] The Ethical Implications of Gene Therapy — Genome editing allows scientists to alter an organism’s DNA. Specifically, there has been “an international effort led by the US, UK, and China to harmonize regulation of the application of genome editing technologies. Furthermore, in 2019, the World Health Organization established an international registry of all trials involving human genome editing aiming to establish a more transparent approach to gene editing. While genome editing can be used to help fight against disease, there is an ethical concern that this gives scientists the power to commence unnecessary genetic enhancements, which will disproportionately benefit the wealthier populations that can afford them. What is genome editing? What are the ethical concerns of genome editing? https://www.genome.gov/about-genomics/policy-issues/Genome-Editing/ethical-concerns Stanford explainer: CRISPR gene editing and beyond. https://news.stanford.edu/stories/2024/06/stanford-explainer-crispr-gene-editing-and-beyond#therapy
[92] The application of CRISPR/Cas9-based genome-wide ... - ScienceDirect — The application of CRISPR/Cas9–based genome-wide screening to disease research - ScienceDirect The application of CRISPR/Cas9–based genome-wide screening to disease research open access Uncovers key genes involved in disease mechanisms through CRISPR/Cas9-based screenings. This technology has become a cornerstone for genome-wide screenings in disease research. This review offers a comprehensive examination of how CRISPR/Cas9-based genetic screening has been leveraged to uncover genes that play a role in disease mechanisms, focusing on areas such as cancer development and viral replication processes. Previous article in issue Next article in issue Recommended articles No data was used for the research described in the article. No articles found. For all open access content, the Creative Commons licensing terms apply.
[93] New CRISPR tool enables more seamless gene editing - YaleNews — New CRISPR tool enables more seamless gene editing — and improved disease modeling | Yale News Yale scientists have developed a CRISPR technology that can assess genetic interactions on a host of immunological responses to multiple diseases, including cancer. Now, however, Yale scientists have developed a series of sophisticated mouse models using CRISPR (“clustered regularly interspaced short palindromic repeats”) technology that allows them to simultaneously assess genetic interactions on a host of immunological responses to multiple diseases, including cancer. “We have created four new Cas12a mouse lines that will allow researchers to study complex genetic interactions and their effects involved in many disorders,” said Sidi Chen, an associate professor of genetics and neurosurgery at Yale School of Medicine and a pioneer in the field of CRISPR technology.
[94] CRISPR-Cas9 Gene Editing - Definition, Mechanism, Application — CRISPR-Cas9 Gene Editing - Definition, Mechanism, Application - Biology Notes Online CRISPR-Cas9 is an innovative technology that allows geneticists and medical researchers to edit portions of the genome by removing, inserting, or modifying DNA sequence segments. Therefore, it is possible that CRISPR-CAS9 detects these spacer sequences as foreign DNA and edits them accordingly. The CRISPR-Cas9 system, a revolutionary genome editing tool, has an intrinsic ability to differentiate between self and non-self DNA, ensuring its precision in targeting foreign genetic elements while preserving the host’s genetic integrity. Scientists may simply alter the sequence of the crRNA, which binds to a complementary sequence in the target DNA, the research concluded.In the 2012 Science publication, Martin Jinek and his colleagues further simplified the technique by merging crRNA and tracrRNA to create a single “guide RNA.” Thus, genome editing requires only two components: a guide RNA and the Cas9 protein.
[95] A Key Role for the Genetic Counsellor in the Genomics Era — Genetic testing and genetic understanding is infiltrating many areas of healthcare, and the role of Genetic Counsellors as 'information providers' is becoming less specialised ( Austin et al., 2014) however Genetic Counsellors have a unique set of skills and can play an important role in providing psychological support for families
[104] How artificial intelligence might disrupt diagnostics in hematology in ... — Examples of successful applications or promising approaches range from the application of pattern recognition software to pre-process and analyze digital medical images, to deep learning algorithms for subtype or disease classification, and digital twin technology and in silico clinical trials. Different ML-based applications address these points, with the automated classification of cells and chromosomes from digital microscopic images nearly reaching expert clinical accuracy. In contrast to the other fields, the opportunities and possibilities in molecular genetics do not solely rely on the optimization of AI-based methods or an increase in standardized training data sets but also depend on the creation of comprehensive data collections and large-scale data mining efforts to improve the understanding of individual sequence variants and complex molecular constellations (Fig. 2).
[105] Artificial Intelligence in Genetics - PMC - PubMed Central (PMC) — This paper examines AI's potential significance in advancing precision genetic disease treatment, provides a peek at its use in genetic clinical care, examines a number of existing AI and ML uses in genetics, provides a clinician primer on critical aspects of these technologies, and makes predictions about AI's potential future applications in genetic illnesses. ML algorithms can analyze large-scale genetic sequence datasets, which can then be used to steer the development of more accurate and effective genome editing technologies by predicting probable off-target consequences . 4. Personalized medicine AI uses genomic data analysis to personalize medicines based on each patient's genetics. By granting licenses or sharing these datasets with AI-focused businesses, strong machine learning models can be developed and trained, improving the precision and applicability of genetic investigations.
[130] 47 Types of Sequencing Techniques You Should Know About — Here is the comprehensive list of 47 types of sequencing techniques used in genetics." DNA sequencing is an important molecular genetic technique. It enables scientists to read the sequence of target DNA fragments. However, various types of sequencing platforms can often lead to confusion in grasping the knowledge.
[131] Top 7 Techniques Used in Genetic Engineering - Biology Discussion — The seven techniques are: (1) Agarose Gel Electrophoresis (2) Isolation and Purification of Nucleic Acids (3) Isolation of Chromosomes (4) Nucleic Acid Blotting Techniques (5) DNA Sequencing (6) Alternative Methods of DNA Sequencing and (7) Chemical Synthesis of DNA. Gel electrophoresis is a routinely used analytical technique for the separation/purification of specific DNA fragments. Besides the separation of DNA fragments, gel electrophoresis is also useful for understanding the molecular configuration of DNA molecules, and protein-nucleic acid interactions. The electrophoretic technique for protein- nucleic acid interaction involves the addition of a desired protein to double-stranded DNA fragments, separation of this complex and naked DNA by electrophoresis. Since pyro sequencing does not require electrophoresis or any other DNA fragment separation technique, it is more rapid than chain termination sequencing. Technique of DNA sequencing:
[139] CRISPR-based diagnostics - Nature Biomedical Engineering — Advertisement CRISPR-based diagnostics Nature Biomedical Engineering volume 5, pages 643–656 (2021)Cite this article 92k Accesses 360 Citations 162 Altmetric Metrics details Subjects Abstract The accurate and timely diagnosis of disease is a prerequisite for efficient therapeutic intervention and epidemiological surveillance. Recent developments in diagnostic technologies, in particular those leveraging clustered regularly interspaced short palindromic repeats (CRISPR), aim to enable accurate testing at home, at the point of care and in the field. In this Review, we provide a rundown of the rapidly expanding toolbox for CRISPR-based diagnostics, in particular the various assays, preamplification strategies and readouts, and highlight their main applications in the sensing of a wide range of molecular targets relevant to human health. Overall, the fast-evolving area of CRISPR-based diagnostics builds on the specificity, programmability and ease of use of CRISPR technology, and aims to create nucleic-acid-based point-of-care (POC) diagnostic tests for use in routine clinical care.
[141] Role of next generation sequencing in diagnosis and management of ... — Next generation sequencing (NGS) technology has emerged as an essential tool for the evaluation of a heterogeneous cohort of individuals with genetic disorders .It has transformed medical
[163] Ten future challenges for synthetic biology - PMC — In this article, 10 technological advances are discussed that are expected and hoped to come from the next generation of research and investment in synthetic biology; from ambitious projects to make synthetic life, cell simulators and custom genomes, through to new methods of engineering biology that use automation, deep learning and control of evolution. This feat of systems biology helped bring new understanding to the resource use of cells, and perhaps most excitingly for synthetic biology it was able to predict how the organism was affected when genes were deleted from the genome or introduced into this cell . Nature is replete with information that living things naturally sense and respond to and co‐opting these mechanisms into engineered cells to make biosensors has been a staple of synthetic biology projects for 20 years now.
[164] Latest Advances in Genetic Engineering in 2023: The Future of Science ... — In addition to gene editing, advancements in genetic engineering also hold the potential to revolutionize agriculture and food production. Through extensive research and technological advancements, scientists have been able to manipulate and engineer the genetic makeup of organisms, including humans, paving the way for a future where customized healthcare is the norm. With continued advancements in genetics and engineering, researchers will unlock the secrets of DNA, revolutionizing biology and enabling unprecedented capabilities in the manipulation of genes. Gene editing, a revolutionary technology that allows scientists to modify the DNA of an organism, has shown incredible potential in curing genetic diseases and improving human health. Gene editing technologies, such as CRISPR-Cas9, have revolutionized the field of genetic engineering, allowing scientists to make precise changes to DNA with unprecedented accuracy and efficiency.
[165] The design and engineering of synthetic genomes — The design and engineering of synthetic genomes | Nature Reviews Genetics Synthetic genomics seeks to design and construct entire genomes to mechanistically dissect fundamental questions of genome function and to engineer organisms for diverse applications, including bioproduction of high-value chemicals and biologics, advanced cell therapies, and stress-tolerant crops. D. Synthetic genomes. Synthetic chromosomes, genomes, viruses, and cells. Y.C., J.D. and W.L.C. contributed substantially to discussion of the content. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
[177] Molecular Genetics - an overview | ScienceDirect Topics — Molecular genetics. Molecular genetics is the branch of genetics that investigates the chemical and physical nature of genes and the mechanisms by which genes control development, growth and physiology.. Basic molecular genetics. Each chromosome contains a molecule of DNA composed of a backbone of sugar (deoxyribose) and phosphate, the purine bases adenine (A) and guanine (G), and the
[178] Molecular genetics - Wikipedia — Molecular genetics is a branch of biology that addresses how differences in the structures or expression of DNA molecules manifests as variation among organisms. Molecular genetics often applies an "investigative approach" to determine the structure and/or function of genes in an organism's genome using genetic screens. The field of study is based on the merging of several sub-fields
[180] The intricate relationship between transcription and translation — See the article "A translational riboswitch coordinates nascent transcription–translation coupling", e2023426118. Yet more recent evidence points to additional genome-wide mechanisms of translation promoting transcription: the trailing ribosome pushing RNAP forward along the gene (5, 6). also present evidence that the translating ribosome then stimulates RNAP release from the pause and increases transcription rates. R., Mironov A., Nudler E., Cooperation between translating ribosomes and RNA polymerase in transcription elongation. 9.Wang C., et al., Structural basis of transcription-translation coupling. W., et al., Structural basis of transcription-translation coupling and collision in bacteria. 11.Saxena S., et al., Escherichia coli transcription factor NusG binds to 70S ribosomes. H., et al., A pause sequence enriched at translation start sites drives transcription dynamics in vivo.
[181] Post-transcriptional Modification - Definition, Types, Process ... — These modifications can include processes such as alternative splicing, capping, polyadenylation, and RNA editing, which collectively regulate gene expression and contribute to the diversity of proteins produced in a cell. Post-transcriptional modifications play a crucial role in the regulation and efficiency of protein synthesis, thereby impacting various cellular processes. Regulation of Translation Initiation: Post-transcriptional modifications can influence translation initiation, the process by which ribosomes bind to mRNA and begin protein synthesis. RNA Editing and Protein Function: RNA editing, a post-transcriptional modification, involves altering specific nucleotides within the RNA sequence. Post-translational modifications (PTMs) based on the addition of chemical groups are diverse and have significant impacts on protein structure, function, and cellular processes.
[199] Transcription and Translation: The Molecular Machinery Explained — Transcription and Translation: The Molecular Machinery Explained - BiologyInsights Explore the intricate processes of transcription and translation, highlighting the roles of RNA polymerase and ribosomes in molecular biology. Transcription and translation involve complex machinery that ensures accuracy and efficiency in protein synthesis. This article delves into the molecular components and steps involved in each process, highlighting the roles of key players like RNA polymerase and ribosomes. Translation converts the genetic information encoded in messenger RNA (mRNA) into a sequence of amino acids, ultimately forming a protein. RNA polymerase is a central enzyme in the transcription process, its activity is integral to the synthesis of RNA from a DNA template. Ribosomes are remarkable molecular machines that play a dynamic role in cellular function by translating genetic information into proteins.
[200] Transcription and translation - Basic Biology — Transcription and translation are two cellular processes that take information from DNA and use it to build proteins.
[201] Transcription: the epicenter of gene expression - PMC — The central dogma of gene expression includes two sequential steps: transcription (DNA to RNA) and translation (RNA to protein). As soon as the nascent transcript emerges from the body of RNA polymerase II (Pol II), the enzyme that transcribes protein coding genes, the RNA is protected by the addition of a 5′ cap (Shatkin, 1976). The termination signal typically relies on sequence information at the end of the genes (Richard and Manley, 2009; Guo et al., 2011). Instead of looking for an open promoter to start transcription, an initiated and paused Pol II can be found on all expressed human genes (Core et al., 2012; Kwak et al., 2013).
[202] Transcription, Translation | Fundamentals of Biology | Biology | MIT ... — List the basic components needed to successfully undergo transcription and translation. Understand the purpose of the cell's performing transcription and translation. Predict RNA and protein sequences from a given gene. Analyze the effects of a DNA mutation on the RNA and protein produced from that DNA.
[219] The Importance of Interdisciplinary Approaches in Molecular Biology — Furthermore, molecular interactions occur in dynamic environments where variables such as temperature, pH, and ionic strength play crucial roles. These factors necessitate an interdisciplinary approach that combines expertise from various fields to model and predict biological behavior accurately. Bridging the Gap: Chemistry and Molecular Biology
[220] Interdisciplinary Models for Research and Clinical Endeavors in Genomic ... — A major goal of interdisciplinary efforts in genomic medicine is to identify novel associations between molecular signatures, whether within the genome or within the expressed genome, and clinical phenotypes, whether responses to medications, onset of diseases, or disease outcomes, that can be leveraged for the improved diagnosis, prognosis
[221] Interdisciplinary Graduate Education: A Case Study - Cell Press — Scientists are increasingly recognizing the importance of interdisciplinary approaches in contemporary biological research, but the majority of graduate students are still trained to conduct research through a traditional approach that focuses on individual disciplines. In a recent issue of Cell, Lorsch and Nichols (2011) suggested reorganizing life sciences curricula to overcome this
[222] Implementation of a genomic medicine multi-disciplinary team approach ... — Background A multi-disciplinary approach to promote engagement, inform decision-making and support clinicians and patients is increasingly advocated to realise the potential of genome-scale sequencing in the clinic for patient benefit. Here we describe the results of establishing a genomic medicine multi-disciplinary team (GM-MDT) for case selection, processing, interpretation and return of
[224] The Role of Cross-disciplinary Collaboration in Drug Discovery — By engaging in cross-disciplinary discussions and collaborations, these researchers can leverage their respective knowledge and experiences to develop more effective and efficient drug discovery strategies. In conclusion, cross-disciplinary collaboration enhances innovation in drug discovery by facilitating the exchange of ideas and perspectives between researchers from different disciplines. Collaboration between academia and industry allows for the exchange of knowledge and resources, bridging the gap between academic research and drug development. Collaboration with industry also provides academic researchers with exposure to the commercial aspects of drug discovery, fostering a better understanding of the market needs and potential patient impact. By creating an environment where scientists from diverse backgrounds can interact and collaborate seamlessly, shared research facilities play a crucial role in advancing cross-disciplinary drug discovery research.
[225] Multi-"omics" Integrative Bioinformatics - University of Michigan — The recent years have seen the emergence and major advancements in -omics sciences: genomics, transcriptomics, proteomics, metabolomics, and biological networks, pathways, circuits, and network analysis.
[226] PDF — Integrative bioinformatics approaches harness this data to develop targeted therapies and optimize drug regimens.Whole-Genome Sequencing: Whole-genome sequencing (WGS) provides comprehensive genetic information, identifying mutations and variants associated with drug response. Key findings from this research include: Enhanced Data Integration: The integration of multi-omics data (genomics, transcriptomics, proteomics, and metabolomics) has been identified as a crucial approach in understanding complex biological systems and their responses to pharmacological interventions. Advanced Computational Methods: The use of sophisticated computational algorithms, including machine learning and artificial intelligence, has shown promise in analyzing large datasets, predicting drug responses, and identifying novel therapeutic targets Successful Case Studies: Several case studies have demonstrated the practical application of integrative bioinformatics in personalized pharmacology, leading to improved drug efficacy and reduced adverse effects.
[228] Interdisciplinary Models for Research and Clinical Endeavors in Genomic ... — A major goal of interdisciplinary efforts in genomic medicine is to identify novel associations between molecular signatures, whether within the genome or within the expressed genome, and clinical phenotypes, whether responses to medications, onset of diseases, or disease outcomes, that can be leveraged for the improved diagnosis, prognosis
[229] What is the power of a genomic multidisciplinary team approach? A ... — Further to these service/patient level outcomes, the genomic MDT implementation outcomes included high levels of acceptability and adoption, although there were some potential tensions raised especially in the role of junior vs senior members of the MDT team, and the need for efficiency and high volume of cases sometimes overriding the quality review and clinical decision making process. In addition, the secondary outcomes of the MDT could include improved collaboration, research, education, and ‘mainstreaming’ of genomics – and these need to be studied both in terms of effectiveness and the scalability and adaptability of these for precision medicine. While there are major gaps in evidence, the studies reviewed all point towards the benefits of the genomic MDT and a need for such an approach for more effective and efficient patient diagnosis and management.
[230] What is the power of a genomic multidisciplinary team approach? A ... — Further to these service/patient level outcomes, the genomic MDT implementation outcomes included high levels of acceptability and adoption, although there were some potential tensions raised especially in the role of junior vs senior members of the MDT team, and the need for efficiency and high volume of cases sometimes overriding the quality review and clinical decision making process. In addition, the secondary outcomes of the MDT could include improved collaboration, research, education, and ‘mainstreaming’ of genomics – and these need to be studied both in terms of effectiveness and the scalability and adaptability of these for precision medicine.
[231] Ensuring best practice in genomics education: A scoping review of ... — Effective genetics and genomics education for health professionals is an essential component of genomic medicine implementation. 1 Genomic testing is complex and involves many health professionals, including those not trained in genetics, 2 many of whom report being unprepared for genomic medicine. 3 Increasingly, programs have been developed to address the educational needs of non-genetics
[232] Interdisciplinary Education | Molecular, Cellular, and Integrative ... — Students choose a course with a quantitative foundation that is based on their interests; this could be population genetics, statistics, or bioinformatics. Students can choose to rotate in three labs that span more than 15 departments, ranging from Biochemistry and Molecular Biology to Biomedical Engineering to Entomology.
[246] Digital Technologies: Advancing Individualized Treatments through Gene ... — 2. Gene and Cell Therapies. The completion of the Human Genome Project had a transformative effect on modern biomedical research and is a major factor supporting an age of personalized medicine [].Revising the previous outlook on genetics as a specialist's interest, limited to addressing rare and life-threatening disorders, to a field that harnesses genetic information in all aspects of
[247] Advances in Molecular Medicine: Unravelling Disease Complexity and ... — The ability to classify diseases and stratify patients precisely, based on their molecular profiles, facilitates the implementation of tailored therapeutic approaches, thereby maximising treatment efficacy and minimising adverse effects. Molecular therapeutics describes a wide range of therapeutic approaches that utilise our understanding of molecular pathways, genetics, and biomarkers to develop targeted treatments for various diseases, including personalised medicine and targeting some infectious diseases. Beyond cancer, molecular therapeutics holds potential for managing autoimmune disorders, rare genetic diseases, and infectious diseases, heralding a new era of precision medicine with tailored treatments for individual patients. More research is required to improve our understanding and develop targeted treatments for UFs. The following three reviews discuss how new therapeutic strategies for cancer treatment, particularly targeted therapies, have improved patient survival.
[248] AI's role in revolutionizing personalized medicine by reshaping ... — AI's role in revolutionizing personalized medicine by reshaping pharmacogenomics and drug therapy - ScienceDirect Search ScienceDirect AI's role in revolutionizing personalized medicine by reshaping pharmacogenomics and drug therapy open access This paper examines the transformative impact of artificial intelligence (AI) on pharmacogenomics, signaling a paradigm shift in personalized medicine. The review emphasizes AI's role in guiding treatment decisions, minimizing adverse reactions, and optimizing drug dosages in clinical settings. This work underscores the synergy of AI and pharmacogenomics, offering a more effective and patient-centric approach to drug therapy, marking a significant advancement in the field of personalized medicine. Previous article in issue Next article in issue No articles found. For all open access content, the relevant licensing terms apply.
[255] Multimodal AI/ML for discovering novel biomarkers and predicting ... — Gene expression analysis through RNA-sequencing (RNA-seq) data has aided in uncovering disease associated biomarkers and categorizing patient groups according to their risk profiles8. In this study, we leverage our previous work and present a new AI/ML approach that uses multi-omics data, integrating RNA-seq-driven gene expression, whole genome-based single nucleotide polymorphisms (SNPs), and clinical demographics data (Fig. 1). A clinically integrated genomic and transcriptomic (CIGT) dataset was analyzed using three ML algorithms to accurately predict CVDs. Through the identification of genetic biomarkers and their associated SNPs, we have highlighted potential indicators for the early detection of CVDs. These biomarkers aid in identifying individuals at risk before diagnosis, enabling prompt intervention and enhancing patient outcomes.
[256] IntelliGenes : a novel machine learning pipeline for biomarker ... — In this article, we present IntelliGenes, a novel machine learning (ML) pipeline for the multi-genomics exploration to discover biomarkers significant in disease prediction with high accuracy.IntelliGenes is based on a novel approach, which consists of nexus of conventional statistical techniques and cutting-edge ML algorithms using multi-genomic, clinical, and demographic data.
[258] Ethical and Legal Considerations in Molecular Medicine — Ethical and Legal Considerations in Molecular Medicine | Molecular Medicine School of Graduate Studies in the Health Sciences Ethical and Legal Considerations in Molecular Medicine Home/Articles/Ethical and Legal Considerations in Molecular Medicine Where Ethics and Laws Come Into Play in Molecular Medicine In genomics research and other types of medical and scientific studies, protecting the privacy of participants is paramount. Ethics are a major concern in medical research, which often involves living human and animal subjects. Exploring this multidisciplinary, expanding field from many perspectives, UMMC’s online Molecular Medicine Graduate Certificate Program helps you firm up your professional expertise and add a valuable credential to your resume or CV.
[259] Social, Legal, and Ethical Implications of Genetic Testing — 8Social, Legal, and Ethical Implications of Genetic Testing Each new genetic test that is developed raises serious issues for medicine, public health, and social policy regarding the circumstances under which the test should be used, how the test is implemented, and what uses are made of its results. Should people be allowed to choose or refuse the test, or should it be mandatory, as newborn screening is in some states? If test results are released to third parties such as employers or insurers, what protections should be in place to ensure that people are not treated unfairly because of their genotype? The answers to these questions depend in part on the significance given to four important ethical and legal principles: autonomy, confidentiality, privacy, and equity.
[261] Ethical Issues in Genetics and Infectious Diseases Research: An ... — Research in genetics and infectious diseases (ID) presents novel configurations of ethical, legal, and social issues (ELSIs) related to the intersection of genetics with public health regulations and the control of transmissible diseases. The issue-spotting exercise highlighted the following ELSIs: risks in reporting to government authorities, return of individual research results, and resource allocation – each taking on specific configurations based on the balance between public health and individual privacy/protection. In the current study, the issue-spotting exercise involved the exploration of possible ELSIs by a group of 20 experts from the following fields: public health, law and genomics, biobanking, genetic epidemiology, ID medicine and public health, philosophy, ethics and ID, ethics and genomics, and law and ID.
[262] Patient Education and Informed Consent for Preimplantation Genetic ... — Professional guidelines, such as those of the National Society of Genetic Counselors, emphasize the importance of achieving adequate informed consent before proceeding with genetic testing, and that the process should be conducted by a board-certified genetic counselor or an individual with equivalent knowledge and experience. 8 The National
[264] Informed Consent in the Genomics Era - PubMed — Informed Consent in the Genomics Era - PubMed The increasing use of genetic testing, particularly genomic sequencing, in clinical and research settings has presented many new challenges for clinicians and researchers when obtaining informed consent. However, there is still a striking lack of consensus in the genetics community about what constitutes informed consent in the context of genomic sequencing. Multiple approaches are needed to address this challenge, including consensus building around standards, targeted use of genetic counselors in nongenetics clinics in which genomic testing is ordered, and the development and testing of alternative models for obtaining informed consent. Genetic Health Professionals' Experiences Obtaining Informed Consent in Diagnostic Genomic Sequencing. Informed consent for genetic testing in hematology.
[265] Implications of genetic testing and informed consent before and after ... — Pitfalls encountered with mainstreaming include adequate patient counseling on unanticipated genetic results as well as follow-up of variants of unknown significance (VUS) which have implications for tested individuals and family members. In addition, a study in the United Kingdom demonstrated that mainstream genetic testing could provide cost-effective and patient-centered testing for breast cancer susceptibility gene mutations utilizing cancer-based criteria. Given the nuances of genetic testing, oncologists are obligated to educate patients not only on the rationale for genetic and genomic testing but also on the possibility and implications of unexpected findings, such as germline mutations and VUS, during informed consent. Evaluation of Cancer-Based Criteria for Use in Mainstream BRCA1 and BRCA2 Genetic Testing in Patients With Breast Cancer.
[267] Social, Legal, and Ethical Implications of Genetic Testing — 8Social, Legal, and Ethical Implications of Genetic Testing Each new genetic test that is developed raises serious issues for medicine, public health, and social policy regarding the circumstances under which the test should be used, how the test is implemented, and what uses are made of its results. Should people be allowed to choose or refuse the test, or should it be mandatory, as newborn screening is in some states? If test results are released to third parties such as employers or insurers, what protections should be in place to ensure that people are not treated unfairly because of their genotype? The answers to these questions depend in part on the significance given to four important ethical and legal principles: autonomy, confidentiality, privacy, and equity.
[277] Genetic Discrimination and Misuse of Genetic Information: Areas of ... — Genetic Discrimination and Misuse of Genetic Information: Areas of Possible Discrimination, Current Legislation, and Potential Limitations | Blogs | CDC Genetic Discrimination and Misuse of Genetic Information: Areas of Possible Discrimination, Current Legislation, and Potential Limitations However, cases of possible genetic discrimination could involve issues of privacy, confidentiality, and informed consent regarding this information. The Genetic Information and Nondiscrimination Act (GINA) is a federal law intended to protect individuals from discrimination in employment, in the workplace, and in health insurance. Compared to HIPAA, GINA applies to more entities and focuses on the management and usage of genetic information. GINA prevents health insurers from using a person’s genetic information to determine eligibility or premiums. Facebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat RSS
[278] Ensuring Data Privacy in Genomic Medicine: Legal Challenges and ... — Ensuring Data Privacy in Genomic Medicine: Legal Challenges and Opportunities - Health Law Blog Ensuring Data Privacy in Genomic Medicine: Legal Challenges and Opportunities Genomic data is sensitive personal information that can reveal not just an individual’s current health status but also potential future health risks, including predispositions to specific genetic conditions. Although the inquiry was closed after the FTC determined the company followed best practices for data privacy, this underscores the necessity of a more robust legal framework governing the collection and sharing practices of such data because “best practices” are not legal requirements, and notably, 23andMe was not required to comply with the Health Insurance Portability and Accountability Act (HIPAA) when sharing genomic data with GlaxoSmithKline, and here is why.
[279] The law of genetic privacy: applications, implications, and limitations ... — Key recommendations found in the Best Practices document include (1) ‘Detailed transparency about how Genetic Data is collected, used, shared, and retained including a high-level summary of key privacy protections posted publicly and made easily accessible to consumers’; (2) ‘Separate express consent for transfer of Genetic Data to third parties and for incompatible secondary uses’; (3) ‘Educational resources about the basics, risks, benefits, and limitations of genetic and personal genomic testing’; (4) ‘Access, correction, and deletion rights’; (5) ‘Valid legal process for the disclosure of Genetic Data to law enforcement and transparency reporting on at least an annual basis’; (6) ‘Ban on sharing Genetic Data with third parties (such as employers, insurance companies, educational institutions, and government agencies) without consent or as required by law’; (7) ‘Restrictions on marketing based on Genetic Data’; and (8) ‘Strong data security protections and privacy by design, among others’.