Table of Contents
Overview
Definition of Regenerative Medicine
Regenerative medicine is a multidisciplinary field focused on the repair or replacement of damaged body parts due to disease or injury. It aims to restore, maintain, or improve bodily functions through various innovative techniques and technologies, including stem cell therapy and tissue engineering.[3.1] This field has emerged as a significant advancement in medical treatment, leveraging principles of stem cell technology to regenerate human tissues and organs.[6.1] The concept of regenerative medicine is rooted in the body's natural healing processes, which initiate automatically in response to injury or illness.[2.1] By harnessing these biological mechanisms, regenerative medicine holds immense potential for addressing critical challenges such as the shortage of donor organs and the complications associated with organ transplantation rejection.[3.1] Regenerative medicine encompasses a wide array of approaches, including cell therapies that utilize stem cells or progenitor cells, immunomodulation therapies that induce regeneration through biologically active molecules, and tissue engineering that involves the transplantation of in vitro grown organs and tissues.[4.1] As the field continues to evolve, it faces various challenges, including scientific hurdles and ethical debates surrounding the use of stem cells and gene editing technologies.[4.1]Key Components and Techniques
Key components of regenerative medicine include biomaterials, tissue engineering, and advanced bioprinting techniques. Biomaterials play a crucial role in tissue engineering, where they are selected based on principles that ensure their safety and effectiveness in supporting tissue regeneration. The ideal biomaterials for tissue engineering scaffolds are those that can safely integrate with biological tissues and facilitate cellular activities necessary for regeneration.[10.1] These materials are often chosen based on their compatibility with autologous cells, which are derived from the patient, allowing for tailored applications in regenerative therapies.[11.1] Tissue engineering itself encompasses various methods for creating scaffolds that provide structural support for tissue regeneration. These scaffolds can be engineered into desirable forms using different techniques, which are essential for mimicking the natural extracellular matrix.[12.1] The principles of tissue engineering guide the selection of biomaterials, emphasizing the importance of material properties that promote cell growth, differentiation, and overall tissue development.[13.1] Recent advancements in 3D bioprinting have significantly enhanced the capabilities of tissue engineering. This technology allows for the precise layer-by-layer deposition of biological materials, living cells, and biochemical components, facilitating the creation of complex tissue structures.[29.1] 3D bioprinting has emerged as a flexible tool in regenerative medicine, bridging the gap between engineered constructs and natural tissues by enabling the fabrication of functional 3D bio-structures with intricate designs.[30.1] Various bioprinting methods, such as extrusion and light-based techniques, offer unique advantages for developing these constructs.[31.1] Despite the promising developments in 3D bioprinting, challenges remain, particularly in achieving the necessary complexity and functionality of bioprinted tissues. Issues such as the lack of vascularization, difficulties in post-print maturation, and maintaining cell viability during the printing process are significant hurdles that researchers are actively addressing.[34.1] Furthermore, the integration of engineered tissues into the host environment is critical for restoring natural tissue and organ function, highlighting the need for ongoing research in this area.[32.1]In this section:
History
Early Developments in Regenerative Medicine
Regenerative medicine has its roots in ancient practices and philosophies that emphasized healing and restoration. The concept of healing through the application of noxious stimuli to injured tissue can be traced back to 500 BC in Rome, where soldiers were treated for joint injuries, illustrating an early understanding of regenerative principles.[45.1] Additionally, ancient medical practices across various cultures, such as those in Egypt and India, laid foundational beliefs that influenced the development of early regenerative techniques. For instance, Ayurveda, an ancient Indian medical system, emphasized a holistic approach to health, integrating physical, emotional, and spiritual healing.[61.1] The historical evolution of regenerative medicine is marked by significant milestones. The term "regenerative medicine" was first introduced by Kaiser in 1992, who outlined technologies that would shape the future of medical practice.[44.1] This field has evolved from a primarily research-focused discipline to one that encompasses various biomedical approaches, including stem cell therapies and tissue engineering. The use of stem cells, particularly through cellular therapy and the induction of regeneration via biologically active molecules, has become a cornerstone of modern regenerative medicine.[47.1] Moreover, the artistic representations of myths and regeneration in ancient cultures reflect a long-standing fascination with the concepts of healing and restoration, which have been integral to the development of medical practices over centuries.[46.1] As research progressed into the 18th and 19th centuries, the scientific understanding of regeneration began to take shape, leading to the establishment of regenerative medicine as a distinct field.[45.1] Despite its advancements, the field faces ethical challenges, particularly concerning stem cell research. The destruction of human embryos in embryonic stem cell research has raised significant ethical dilemmas, which have limited the development of certain clinical therapies.[49.1] Furthermore, concerns regarding the safety and therapeutic potential of mesenchymal stem cells highlight the need for careful consideration of ethical implications in regenerative medicine.[50.1] As the field continues to evolve, navigating these ethical challenges will be crucial for responsible research and application in regenerative medicine.[48.1]Milestones in Stem Cell Research
The field of regenerative medicine has witnessed significant milestones in stem cell research, particularly since the 1990s. One of the most transformative advancements has been the development of induced pluripotent stem cells (iPSCs), which are generated by reprogramming adult somatic cells to an embryonic-like state. This innovation has revolutionized regenerative medicine by providing a source of cells that can differentiate into various specialized cell types while circumventing the ethical concerns associated with embryonic stem cells (ESCs) and tissue-specific progenitor stem cells (TSPSCs).[66.1] The potential applications of stem cells in regenerative medicine are vast. They include tissue regeneration and disease therapeutics, with various types of stem cells such as mesenchymal stem cells (MSCs), umbilical cord stem cells (UCSCs), and bone marrow stem cells (BMSCs) being utilized for these purposes.[65.1] The ability of iPSCs to self-renew indefinitely in culture allows for the generation of an almost unlimited supply of specialized cells, which is crucial for studying early human development, modeling diseases, and developing regenerative therapies.[66.1] Moreover, stem cell research has opened new avenues for understanding fundamental biological processes, such as tissue development and specialization, which are essential for creating effective therapies.[64.1] The advancements in stem cell research not only promise new treatments for debilitating diseases but also enhance our understanding of human biology, thereby influencing current therapeutic approaches in regenerative medicine.[62.1]Recent Advancements
Innovations in Stem Cell Therapy
Recent advancements in stem cell therapy have significantly transformed the landscape of regenerative medicine, offering innovative solutions for a variety of medical conditions. Stem cell therapy encompasses a range of techniques that utilize the unique properties of stem cells to repair or replace damaged tissues and organs. This approach is particularly promising due to its potential to develop personalized regenerative therapies using a patient's own stem cells, which minimizes the risk of rejection and complications associated with donor tissues.[91.1] One of the most notable innovations in this field is the development of induced pluripotent stem cells (iPSCs). iPSCs are derived from differentiated somatic cells and possess the ability to self-renew indefinitely while also providing a nearly unlimited supply of specialized cells. This capability not only facilitates the study of early human development and disease modeling but also enhances the potential for regenerative therapies.[92.1] The ethical advantages of iPSCs over traditional embryonic stem cells (ESCs) further bolster their appeal in clinical applications.[92.1] Moreover, the integration of tissue engineering technologies with stem cell therapy has led to the creation of organoids, which are miniaturized and simplified versions of organs. These organoids can be utilized for physiological restoration of damaged tissues, showcasing the versatility of stem cells in addressing complex medical challenges.[93.1] Recent studies have highlighted the efficacy of stem cell therapies in treating conditions such as chronic wounds, burns, and scars, where innovative techniques like bioengineered skin grafts and topical applications of growth factors have been employed to promote faster healing and improved aesthetic outcomes.[83.1] The ongoing research into the mechanisms of stem cell differentiation is also pivotal in advancing personalized regenerative therapies. By understanding how stem cells can be directed to differentiate into specific cell types, researchers are developing targeted treatments that can effectively address various diseases and injuries.[91.1] This focus on stem cell differentiation is crucial for optimizing therapeutic strategies and enhancing the overall efficacy of regenerative medicine.Progress in Tissue Engineering
Recent advancements in tissue engineering have significantly enhanced the functionality and integration of engineered tissues within the human body. Scaffold design plays a crucial role in this field, as it involves crafting three-dimensional structures that closely emulate the extracellular matrix of native tissues. These scaffolds serve as foundational frameworks for cellular attachment, proliferation, and differentiation, thereby orchestrating the intricate process of tissue regeneration.[88.1] The development of resorbable scaffolds is essential, as they not only restore function but also guide regeneration. Recent advances in material fabrication have expanded control over the compositional and architectural features of these scaffolds, allowing for a closer approximation to the complexity of native tissue.[89.1] Moreover, the integration of computational topology design (CTD) with solid free-form fabrication (SFF) has enabled the creation of scaffolds with controlled architecture, which is vital for achieving desired mechanical properties and promoting effective tissue regeneration.[90.1] These technological advancements are complemented by emerging engineering technologies that improve control over the complex factors governing vascularization in vivo. For instance, 3D printing has emerged as a promising scalable approach capable of fabricating hydrogels with functional and hierarchical vascular architectures, addressing one of the critical challenges in tissue engineering.[105.1] In addition to these innovations, tissue-engineered constructs are being explored as potential alternatives to current therapeutic options for patients with cardiovascular diseases, highlighting the ongoing evolution of tissue engineering tools and their applications in regenerative medicine.[106.1]Clinical Applications
Regenerative Medicine in Chronic Diseases
Regenerative medicine (RM) has emerged as a promising approach for addressing chronic diseases, leveraging advancements in cellular therapies, tissue engineering, and innovative treatment strategies. The application of multipotent mesenchymal stem cells (MSCs) has shown significant potential in treating various chronic conditions. For instance, MSCs have been utilized in the management of orthopedic injuries, including those affecting bone and cartilage, demonstrating their ability to differentiate into various cell types and restore tissue function.[125.1] Moreover, recent clinical trials have highlighted the safety and efficacy of human umbilical cord-derived MSCs (UC-MSCs) in patients suffering from moderate to severe COVID-19 pulmonary disease, indicating their therapeutic potential in respiratory conditions.[118.1] This aligns with the broader trend in regenerative medicine, where cellular therapies are increasingly recognized for their ability to modulate immune responses and promote healing in chronic diseases.[115.1] Tissue engineering (TE) also plays a crucial role in the management of chronic conditions by developing biomaterials that can repair or replace damaged tissues. The integration of life sciences and engineering principles in TE has led to innovative strategies that enhance tissue regeneration and restore function.[121.1] For example, the use of engineered tissues and scaffolds can facilitate the regeneration of organs and tissues affected by chronic diseases, thereby improving patient outcomes. Furthermore, the regulatory landscape surrounding regenerative medicine is evolving to support the clinical application of these therapies. Effective regulatory frameworks are essential for ensuring the safe and timely introduction of regenerative medicine products into clinical practice, particularly in countries like Japan, where such infrastructures are being developed.[119.1]Applications in Trauma and Injury Recovery
Tissue Engineering (TE) and Regenerative Medicine (RM) have emerged as pivotal fields in addressing the challenges associated with trauma and injury recovery, particularly in the context of tissue and organ defects. One of the significant advancements in these areas is the integration of tissue engineering techniques to mitigate the common issue of donor-site morbidity associated with standard autologous bone grafts. This innovative approach has demonstrated promising results in patient care by enhancing recovery outcomes and reducing complications related to traditional grafting methods.[122.1] The complexity of developing therapies for solid organs, such as the heart and liver, necessitates a sophisticated organization of materials and growth factors that can support multiple cell types, tissue structure, and vascular networks. Previous attempts at creating cell-material liver implants, which depended on in vivo angiogenesis for vascular support, showed success in animal models; however, these strategies faced challenges when applied to larger structures intended for human use. Recent advancements in tissue engineering have led to significant breakthroughs in the engineering of cells, materials, and tissue architecture, which are crucial for promoting vascularization and achieving organ-specific cellular phenotypes in implantable constructs.[123.1] For these engineered constructs to be viable for patient use, they must adhere to stringent FDA guidelines concerning host compatibility, sterility, and functionality. The last decade has witnessed remarkable progress in this domain, paving the way for more effective applications of tissue engineering in clinical settings, particularly for patients recovering from traumatic injuries.[123.1]In this section:
Ethical Considerations
Ethical Issues in Stem Cell Research
Ethical issues in stem cell research encompass a wide range of concerns that must be addressed to ensure responsible practices in regenerative medicine. Key ethical considerations include safety and efficacy, patient consent, and the principles of equity and fairness. These issues are particularly pertinent given the complexities introduced by advancements such as gene editing and the development of chimaeras, which raise questions about the long-term consequences of these technologies.[168.1] Access and equity represent significant ethical challenges, as disparities in access to regenerative therapies can exacerbate existing health inequalities. It is crucial to ensure that all patients, regardless of socioeconomic status, have equitable access to these potentially life-saving treatments.[154.1] Furthermore, the commercialization of regenerative medicine poses ethical dilemmas regarding the prioritization of patient outcomes over profit motives. Maintaining ethical standards requires a commitment to patient welfare and public trust, necessitating the establishment of robust ethical guidelines and regulatory frameworks.[173.1] Involving various stakeholders, including patients, in the research design and review process is essential for addressing ethical concerns. Engaging patients can help ensure that their perspectives and needs are considered, thereby fostering a more inclusive approach to ethical guideline development.[168.1] Regular reassessment of these guidelines is also necessary to adapt to the evolving landscape of regenerative medicine and to safeguard human dignity.[173.1]Patient Consent and Safety Concerns
In regenerative medicine, the principles of autonomy and informed consent are paramount due to the innovative and often experimental nature of the therapies involved. Respecting individual autonomy is a cornerstone of ethical medical practice, and obtaining informed consent is particularly crucial in this field.[170.1] The complexity of regenerative therapies necessitates that clinicians ensure patients are fully informed about the potential risks and benefits, which can sometimes be unclear or not fully understood.[172.1] Clinicians face challenges in balancing the principle of autonomy with beneficence (the obligation to do good) and non-maleficence (the obligation to avoid harm).[172.1] This balance is essential, especially given the prevalence of clinics marketing unproven stem cell-based therapies, which can exploit patient vulnerability and undermine informed consent.[172.1] The International Society for Stem Cell Research (ISSCR) has established an Informed Consent Standard that emphasizes the importance of obtaining informed consent from patients, recognizing the ethical obligation to prioritize patient welfare over commercial interests.[172.1] Moreover, the development of harmonized ethical standards and regulatory guidelines across countries is vital for promoting responsible practices in regenerative medicine.[169.1] Regular reassessment of these ethical guidelines can help safeguard patient welfare and maintain public trust in the advancements of regenerative therapies.[169.1] Engaging the public in discourse and fostering international collaboration are also essential steps to ensure that the evolution of regenerative medicine respects human dignity and promotes patient well-being.[169.1]Future Prospects
Emerging Technologies in Regenerative Medicine
Recent advancements in regenerative medicine have been significantly influenced by emerging technologies that promise to reshape the landscape of healthcare. The number of regenerative medicine therapy product developers has surged from 900 in 2018 to at least 2,700 globally, alongside a rise in gene and cell therapy clinical trials from approximately 1,000 to 1,600. Notably, the application of chimeric antigen receptor T cell (CAR-T) therapies has expanded dramatically, with the number of patients treated increasing from at least 180 to 20,000.[187.1] These developments highlight the field's potential to transform healthcare, particularly for patients with previously untreatable conditions.[188.1] Innovative approaches in regenerative medicine include the use of stem cells for treating diseases such as Parkinson's and the development of a heart valve capable of growing in vivo. Genetic therapies are also being explored for conditions like wet age-related macular degeneration (AMD), showcasing the field's capacity to address age-related degenerative diseases.[189.1] Furthermore, regenerative medicine distinguishes itself from traditional medical practices by focusing on restoring damaged tissues and organs rather than merely managing symptoms.[190.1] Technological advancements such as three-dimensional (3D) bioprinting are revolutionizing tissue engineering by enabling the fabrication of viable tissue-like structures using bioinks composed of hydrogels, cells, and growth factors. This technology is instrumental in developing realistic microphysiological models for personalized disease modeling and drug development.[191.1] The integration of artificial intelligence (AI) and machine learning is also becoming increasingly relevant, particularly in enhancing gene therapy, stem cell therapy, and tissue engineering.[195.1] AI systems are designed to learn from data and past experiences, which is essential for developing next-generation cell therapies.[195.1] Looking ahead, the future of regenerative medicine is poised for further breakthroughs through the application of advanced technologies such as organ transplantation, scaffold technology, and the construction of artificial tissues using nanomedicine and 3D bio-printers. Revolutionary approaches involving soft intelligence biomaterials, nanorobotics, and living robotics capable of self-repair are anticipated to emerge in the coming decades.[197.1] Additionally, gene and protein therapies, particularly mRNA therapy, are gaining traction as promising directions in regenerative medicine, focusing on regulating key biological signals.[196.1] As these technologies continue to evolve, they hold the potential to significantly impact patient care and improve health outcomes, particularly for age-related diseases and other challenging medical conditions.[194.1]References
[2] An Overview of Regenerative Medicine - Piedmont Physical Medicine ... — An Overview of Regenerative Medicine. Our bodies are smart organisms. Whenever we get injured or are exposed to disease and sickness, our bodies automatically initiate a healing and defense process. ... This is the concept behind regenerative medicine. Regenerative medicine holds so many possibilities. Not only is it a means of restoring the
[3] Regenerative Medicine - an overview | ScienceDirect Topics — Regenerative medicine is a recently developed, multidisciplinary field involving the development of biological substitutes that can help restore, maintain or improve body functions . Regenerative medicine has the potential to solve the problem of shortage of donor organs, as well as solve the problem of organ transplantation rejection .
[4] Unlocking 7 Revolutionary Advances in Regenerative Medicine for Tissue ... — Regenerative medicine encompasses a variety of techniques and technologies, from stem cell therapy to tissue engineering and beyond. This blog post aims to peel back the layers of this complex yet promising field, providing you with a comprehensive understanding of how regenerative medicine for tissue regeneration works, its current applications, and the boundless possibilities it holds for the future. Throughout its history, regenerative medicine has faced challenges, from scientific hurdles to ethical debates over stem cell use, gene editing, and the commercialization of human tissues. The field of regenerative medicine for tissue regeneration harnesses a variety of advanced technologies to restore or replace damaged tissues and organs. The field of regenerative medicine for tissue regeneration is not only advancing technologically but also navigating complex regulatory and ethical landscapes.
[6] Regenerative medicine: Historical roots and potential strategies in ... — Regenerative medicine is a distinct major advancement in medical treatment which is based on the principles of stem cell technology and tissue engineering in order to replace or regenerate human tissues and organs and restore their functions. After
[10] Strategies for the Specification of Tissue Engineering Biomaterials ... — Principles of Biomaterials Selection in Tissue Engineering. We now come to the main theme of this chapter, that is, the biomaterials that are used in the processes of regenerative medicine, and especially, tissue engineering. ... The predicate biomaterials for tissue engineering scaffolds were assumed to be those materials that had been safely
[11] Principles of Tissue Engineering and Regenerative Medicine — Basic principles of tissue engineering (TE). Cells obtained from a patient can be used as an autologous source for different tissue engineering applications. ... as it allows for the selection of cell types, materials, as well as growth and differentiation factors. ... O'Brien FJ (2011) Biomaterials & scaffolds for tissue engineering
[12] (PDF) Tissue Engineering: Principles, Recent Trends and the Future ... — 2.7 engineering biomaterials for tissue engineering Different methods are available for engineering of biomaterials into a de- sirable form that is intended by the scaffold for tissue engineering
[13] Principles of Tissue Engineering - ScienceDirect — Now in its fourth edition, Principles of Tissue Engineering has been the definite resource in the field of tissue engineering for more than a decade. The fourth edition provides an update on this rapidly progressing field, combining the prerequisites for a general understanding of tissue growth and development, the tools and theoretical information needed to design tissues and organs, as well
[29] Advances in 3D Bioprinting - ScienceDirect — Advances in 3D Bioprinting - ScienceDirect Advances in 3D Bioprinting Three-dimensional (3D) bioprinting has emerged as a promising approach for engineering functional tissues and organs by layer-by-layer precise positioning of biological materials, living cells, and biochemical components. We then summarize the state-of-the-art advancements in 3D bioprinting for biomedical applications, including macroscale tissue or organ bioprinting, disease modeling, microphysiological systems, biobots, and bioprinting in space. Despite the rapid development of 3D bioprinting over the past decades, most 3D bioprinted tissue or organ constructs are still far from being suitable for clinical translation, and it is necessary for the field of bioprinting to shift its focus from shape mimicking towards functionality development. 3D bioprinting For all open access content, the relevant licensing terms apply.
[30] Advancements in tissue and organ 3D bioprinting: Current techniques ... — Advancements in tissue and organ 3D bioprinting: Current techniques, applications, and future perspectives - ScienceDirect Advancements in tissue and organ 3D bioprinting: Current techniques, applications, and future perspectives The state-of-the-art of 3D bioprinting is comprehensively reviewed with emphasis on design and processing aspects. 3D bioprinting techniques have emerged as a flexible tool in tissue engineering and regenerative medicine to fabricate or pattern functional 3D bio-structures with precise geometric designs, bridging the divergence between engineered and natural tissue constructs. This review presents a picture of 3D bioprinting in the context of tissue engineering and regenerative medicine, with focus on biomaterials-related and design-centred aspects. Next article in issue No articles found. For all open access content, the relevant licensing terms apply.
[31] 3D Bioprinting for Engineered Tissue Constructs and Patient‐Specific ... — Advancements in bioprinting technology are driving the creation of complex, functional tissue constructs for use in tissue engineering and regenerative medicine. Various methods, including extrusion, jetting, and light-based bioprinting, have their unique advantages and drawbacks.
[32] Applications of 3D Bioprinting in Tissue Engineering and Regenerative ... — Upon implantation of these cell-laden biological structures, 3D bioprinting has the potential to integrate the engineered tissue into the natural tissue, which will allow for restoration of natural tissue and organ function . The utilization of 3D bioprinting in scaffold construction has made scaffolds’ microstructures more advanced and precise in their anatomical features, allowing for more accurate co-deposition of cells and biomaterials when compared with conventional tissue engineering methods . 36.Bishop E.S., Mostafa S., Pakvasa M., Luu H.H., Lee M.J., Wolf J.M., Ameer G.A., He T.C., Reid R.R. 3-D bioprinting technologies in tissue engineering and regenerative medicine: Current and future trends.
[34] PDF — Mayo Clinic has successfully bioprinted skin models to mimic inflammatory Table 2: Challenges and Limitations of 3D Bioprinting Challenge/Limitation Description Tissue Complexity Bioprinted tissues often lack functional elements like vasculature, nervous system, and multiple supporting cell types Post-print Maturation Difficulties in maintaining and maturing printed tissues long-term Regulatory Framework Undefined regulatory pathways for bioprinted constructs Resolution Limited printing resolution, especially for fine tissue microarchitecture Cell Viability Low cell densities and potential damage from printing process Mechanical Properties Printed constructs often lack structural integrity and mechanical strength Material Limitations Restricted range of suitable bioinks, especially for some printing techniques Time and Cost Some techniques are time-consuming and expensive UV Exposure Potential cell damage from UV light used in some printing methods Vascularization Challenges in creating functional, perfusable vascular networks Multi-material Printing Difficulties in precisely combining multiple materials and cell types Long-term Functionality Ensuring printed tissues maintain function over extended periods Central Eghosasere E, et al.
[44] History of Regenerative Medicine | SpringerLink — Regenerative medicine is associated with engineering or regeneration of human cells, tissues, or organs and to restore or establish normal function . Historically, regenerative medicine was first introduced by Kaiser in 1992, who described technologies which would impact the future of medicine .
[45] History of regenerative medicine - Icahn School of Medicine at Mount Sinai — Until relatively recently, regenerative medicine has been a research term used to describe engineering or regrowing tissue to re-establish normal function . Though research in this field and its clinical applications are novel, the central tenets are ancient. The idea that noxious stimuli applied to injured tissue can induce healing is traceable to 500 BC in Rome, where soldiers with joint
[46] History and evolution of regenerative medicine - ScienceDirect — The knowledge network in an artistic summary of the history and the evolution of regenerative medicine. The roots are anchored primarily in paintings depicting myths, animal generation, and regeneration descriptions from ancient times, followed by the research in the 18th, 19th centuries in the trunk.
[47] Regenerative medicine - Wikipedia — Some of the biomedical approaches within the field of regenerative medicine may involve the use of stem cells. Examples include the injection of stem cells or progenitor cells obtained through directed differentiation (cell therapies); the induction of regeneration by biologically active molecules administered alone or as a secretion by infused cells (immunomodulation therapy); and transplantation of in vitro grown organs and tissues (tissue engineering). These advances led to tissue engineering, and from this field, the study of regenerative medicine expanded and began to take hold. This began with cellular therapy, which led to the stem cell research that is widely being conducted today.
[48] Ethical issues in stem cell research - PubMed — official website and that any information you provide is encrypted Save citation to file Ethical issues in stem cell research Ethical issues in stem cell research Stem cell research offers great promise for understanding basic mechanisms of human development and differentiation, as well as the hope for new treatments for diseases such as diabetes, spinal cord injury, Parkinson's disease, and myocardial infarction. However, human stem cell (hSC) research also raises sharp ethical and political controversies. The reprogramming of somatic cells to produce induced pluripotent stem cells avoids the ethical problems specific to embryonic stem cell research. These ethical and policy issues need to be discussed along with scientific challenges to ensure that stem cell research is carried out in an ethically appropriate manner. Full Text Sources
[49] Ethical and Safety Issues of Stem Cell-Based Therapy - PMC — We describe ethical challenges regarding human embryonic stem cell (hESC) research, emphasizing that ethical dilemma involving the destruction of a human embryo is a major factor that may have limited the development of hESC-based clinical therapies. Although clinical application of mesenchymal stem cells (MSCs) has shown beneficial effects in the therapy of autoimmune and chronic inflammatory diseases, the ability to promote tumor growth and metastasis and overestimated therapeutic potential of MSCs still provide concerns for the field of regenerative medicine. We describe and discuss ethical challenges regarding human embryonic stem cell (hESC) research, therapeutic potential and clinical translation of induced pluripotent stem cell (iPSC) and safety issues of mesenchymal stem cell (MSC)-based therapy. doi: 10.1016/j.cell.2008.02.008. doi: 10.1016/j.cell.2006.07.024. doi: 10.1016/j.cell.2010.12.032. doi: 10.1016/j.cell.2009.02.013.
[50] Ethical issues in stem cell research and therapy - PMC — Ethical issues in stem cell research and therapy - PMC Ethical issues in stem cell research and therapy Our discussion addresses research oversight in the historical context of human embryonic stem cell (hESC) research; clinical translation and uncertainty; the profound tension between the desire for clinical progress and the need for scientific caution; and issues of consent, control, commercialization, and justice arising from stem cell banking, disease modeling, and drug discovery. Similarly, in an international survey of stem cell scientists and scholars of ethical issues in stem cell research, a prolific bioethics research group has identified increasing concerns arising from pressures for clinical translation, commercialization, and oversight of new stem cell technologies .
[61] The evolution of ancient healing practices: From shamanism to ... — Similarly, in ancient India, Ayurveda emerged as a holistic system of medicine, emphasizing the balance of mind, body, and spirit. Ayurvedic texts, such as the Charaka Samhita and the Sushruta Samhita, detailed diagnosis, treatment, and prevention principles, including herbal remedies, dietary guidelines, and yoga practices. The ancient Greeks, particularly during the Classical period, made significant contributions to the development of medical science through the work of physicians like Hippocrates and Galen. Hippocratic medicine, named after the renowned physician Hippocrates, emphasized rational observation, naturalistic explanations for disease, and ethical principles guiding medical practice. The Hippocratic Corpus, a collection of texts attributed to Hippocrates and his followers, laid the foundation for clinical medicine, advocating for the systematic study of symptoms, prognosis, and treatment outcomes. Galen, a prominent physician of the Roman Empire, further expanded upon Hippocratic teachings, contributing to advancements in anatomy, physiology, and pharmacology. The legacy of ancient healing practices extends far beyond historical curiosity, influencing contemporary approaches to healthcare and wellness.
[62] Stem Cell Research: The Future of Regenerative Medicine (2024) — Stem cell clinical research with mesenchymal stem cells (MSCs) is crucial for advancing the field of regenerative medicine and developing effective treatments for various diseases. Stem cell research has many potential applications, including regenerative medicine, cancer, disease modeling, drug development, and tissue engineering. Stem cell research holds immense potential for advancing our understanding of human biology, developing new treatments for various diseases, and revolutionizing regenerative medicine. This research aims to understand how stem cells function, how they can be used to treat diseases, and how they can be harnessed for regenerative medicine and tissue engineering applications. Potential benefits of stem cell research include the development of new treatments for various diseases, personalized medicine, tissue engineering, and the possibility of reversing the effects of aging.
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[105] Strategies for Regenerative Vascular Tissue Engineering - Wang - 2023 ... — Engineering technologies that illicit better control over the complex factors which govern vascularization in the in vivo environment are emerging in the field of tissue engineering. 3D printing, for example, can be employed as a promising scalable approach capable of fabricating hydrogels with functional and hierarchical vascular architectures.
[106] Combining Cell Technologies With Biomimetic Tissue Engineering ... — . 2023 Feb 20;12(2):72-82. doi: 10.1093/stcltm/szad002. Search in PMC; Search in PubMed; ... tissue engineered constructs could potentially become a promising alterative to the current therapeutic options for patients with cardiovascular diseases. In this review, we selectively present an overview of the current tissue engineering tools such
[115] Regenerative medicine applications: An overview of clinical trials — Insights into the use of cellular therapeutics, extracellular vesicles (EVs), and tissue engineering strategies for regenerative medicine applications are continually emerging with a focus on personalized, patient-specific treatments. Multiple pre-clinical and clinical trials have demonstrated the strong potential of cellular therapies, such as stem cells, immune cells, and EVs, to modulate in
[118] Regenerative medicine applications: An overview of clinical trials — Promising pre-clinical research studies have shown the potential of multipotent mesenchymal stem cells (MSCs) transplantation as a regenerative medicine therapy option (Vu et al., 2014; Wang et al., 2021). The Mesenchymal and Tissue Stem Cell Committee of the International Society for Cellular Therapy (ISCT) has set standards to define ‘multipotent mesenchymal stromal cells’ (MSC) for both laboratory-based scientific investigations and pre-clinical studies (Dominici et al., 2006). Non-randomized case studies, phase 1 and phase 2 clinical trials have shown that human umbilical cord-derived mesenchymal stem cell (UC-MSCs) infusions in patients with moderate and severe COVID-19 pulmonary disease is safe and well-tolerated (Liang et al., 2020; Meng et al., 2020; Shu et al., 2020; Hashemian et al., 2021; Shi et al., 2021).
[119] Overview of the clinical application of regenerative medicine products ... — These results suggest that effective regulatory infrastructure including regulatory systems, guidelines, and communication channels between product developers and regulatory bodies are essential for the prompt clinical application of RMP in Japan.
[121] Tissue Engineering and Photodynamic Therapy: A New Frontier of Science ... — Tissue engineering (TE) connects principles of life sciences and engineering to develop biomaterials as alternatives to biological systems and substitutes that can improve and restore tissue function. The principle of TE is the incorporation of
[122] Successful human long-term application of in situ bone tissue ... — Tissue Engineering (TE) and Regenerative Medicine (RM) have gained much popularity because of the tremendous prospects for the care of patients with tissue and organ defects. To overcome the common problem of donor-site morbidity of standard autologous bone grafts, we successfully combined tissue engineering techniques for the first time with
[123] Chasing the Paradigm: Clinical Translation of 25 Years of Tissue ... — The development of therapies for solid organs, such as the heart and liver, requires more complex organization of materials and growth factors to support multiple cell types, tissue structure, and vascular networks.47 Earlier cell-material liver implants, which relied on in vivo angiogenesis to provide vascular structures for newly formed tissue, had success in animal models but did not effectively translate to larger structures for human applications.48 The last decade of tissue engineering has seen incredible discoveries in engineering cells, materials, and tissue architecture to promote vasculature and organ-specific cellular phenotypes in implantable constructs.49 For patient availability, these need to meet FDA guidelines for host compatibility, sterility, and functionality.
[125] Stem Cell Success Rate: Evaluated (2024) — Success in Regenerative Medicine. Regenerative medicine aims to restore the function of damaged tissues or organs. Given their ability to differentiate into various cell types, MSCs play a crucial role in this field. For instance, they have been successfully used in treating orthopedic injuries, such as those involving bone and cartilage.
[154] Exploring the Ethics of Regenerative Medicine - toxigon.com — Ethical Considerations in Regenerative Medicine. While the benefits of regenerative medicine are clear, the ethical considerations are just as important. As we push the boundaries of what's possible, we need to ask ourselves some tough questions. Access and Equity. One of the biggest ethical issues is access and equity.
[168] PDF — The list of ethical issues discussed includes safety and efficacy, patient consent, information, professional responsibilities, as well as equity and fairness. The list of stakeholders is long and includes present and future patients, their relatives and families, physicians, clinics, healthcare services, medical journals, those in the product supply chain, researchers, funding organizations, * Göran Hermerén goran.hermeren@med.lu.se 1 Department of Medical Ethics, Biomedical Centre, Lund University, Lund, Sweden 114 Biologia Futura (2021) 72:113–118 1 3 professional organizations, regulators, policy makers, and taxpayers. A strategy for dealing with the uncertainties and knowledge gaps of the value landscape mentioned in EASAC (2020) is tackling gaps in training on ethical, legal, and societal issues in regenerative medicine, including how to involve other stakeholders, especially patients, in research design and review.
[169] PDF — Ensuring that research and treatments prioritize patient outcomes over profits is essential for maintaining ethical standards in regenerative medicine. Developing harmonized ethical standards and regulatory guidelines across countries can promote responsible practices and ensure that patients worldwide benefit from advancements in regenerative therapies. Regular reassessment of ethical guidelines can help safeguard patient welfare and public trust in regenerative medicine. While the potential of regenerative therapies to transform healthcare is immense, ethical challenges related to informed consent, equity, patient safety, and the commercialization of science must be addressed. Establishing robust ethical guidelines and regulatory frameworks, engaging the public in discourse, and fostering international collaboration are essential steps toward ensuring that regenerative medicine advances in a manner that respects human dignity and promotes the well-being of patients.
[170] Ethical Considerations: Navigating the Future of Regenerative Medicine — Informed Consent and Patient Autonomy. Respecting individual autonomy is a cornerstone of ethical medical practice. In regenerative medicine, obtaining informed consent becomes particularly crucial due to the innovative and sometimes experimental nature of these interventions.
[172] Unproven stem cell therapies: an evaluation of patients' capacity to ... — Capitalising on the hype surrounding regenerative medicine, there are clinics worldwide marketing unproven stem cell-based therapies to patients. ... particularly between autonomy and the principles of beneficence ('to do good') and non-maleficence ... The ISSCR Informed Consent Standard acknowledges the significance of obtaining a patient
[173] PDF — Ensuring that research and treatments prioritize patient outcomes over profits is essential for maintaining ethical standards in regenerative medicine. Developing harmonized ethical standards and regulatory guidelines across countries can promote responsible practices and ensure that patients worldwide benefit from advancements in regenerative therapies. Regular reassessment of ethical guidelines can help safeguard patient welfare and public trust in regenerative medicine. While the potential of regenerative therapies to transform healthcare is immense, ethical challenges related to informed consent, equity, patient safety, and the commercialization of science must be addressed. Establishing robust ethical guidelines and regulatory frameworks, engaging the public in discourse, and fostering international collaboration are essential steps toward ensuring that regenerative medicine advances in a manner that respects human dignity and promotes the well-being of patients.
[187] Emerging Technologies and Innovation in Manufacturing Regenerative ... — Since 2018 the number of regenerative medicine therapy product developers has increased from 900 to at least 2,700 globally, the number of gene and cell therapy clinical trials has increased from around 1,000 to 1,600, and the number of patients treated with chimeric antigen receptor T cell (CAR-T) therapies alone has increased from at least 180 to 20,000 (Mitra et al., 2023).2 While manufacturing advances have accompanied some of this growth, the field is also starting to realize the potential of machine learning (ML) and artificial intelligence (AI), said Zylberberg.
[188] (Pdf) Advancements in Regenerative Medicine: Present Approaches ... — The rapid advancements in regenerative medicine over recent years have created new hope for patients who face otherwise untreatable conditions, showcasing the fields potential to transform healthcare.
[189] The promising future of regenerative medicine - Pharmaceutical Technology — Innovations include stem cells being used in the treatment of Parkinson’s disease, a heart valve capable of growing in vivo, and genetic therapies used in wet age-related macular degeneration. The field has seen exciting innovations, including stem cells being used in the treatment of Parkinson’s disease, a heart valve capable of growing in vivo, and genetic therapies used in wet age-related macular degeneration (AMD). Access the most comprehensive Company Profiles on the market, powered by GlobalData. Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. These advancements mean that regenerative medicine can be used in the battle against age-related degenerative diseases such as Parkinson’s and AMD.
[190] Advancements in Regenerative Medicine: Transforming Healthcare fo — Regenerative medicine is a ground breaking field that holds the promise of revolutionizing healthcare by harnessing the body's innate regenerative capabilities to treat a wide range of medical conditions. Unlike traditional medical approaches that often focus on symptom management, regenerative medicine seeks to restore damaged tissues, organs, and systems to their optimal functioning. In
[191] Advances in Regenerative Medicine and Biomaterials - PubMed — Advances in Regenerative Medicine and Biomaterials - PubMed In particular, three-dimensional (3D) bioprinting utilizes 3D printing to fabricate viable tissue-like structures (perhaps organs in the future) using bioinks composed of special hydrogels, cells, growth factors, and other bioactive contents. Today, the gained knowledge of functional microtissue engineering and biointerfaces, along with the remarkable advances in pluripotent stem cell technology, seems to be instrumental for the development of more realistic microphysiological 3D in vitro tissue models, which can be utilized for personalized disease modeling and drug development. Keywords: 3D bioprinting; Artificial intelligence; Biomaterials; Biomedical devices & artificial organ; Computing; Decellularization; Organ-on-a-chip; Process automation; Regenerative medicine; Stem cells; Tissue & organ engineering; Tissue engineering. Progress in 3D bioprinting technology for tissue/organ regenerative engineering.
[194] Rejuvenation Intervention Advancments in Regenerative Medicine in 2023 — Researchers are using stem cells to study diseases, improve drug development, and explore new treatments for heart diseases. In February 2023, a new stem cell therapy developed at Lund University showed promise in treating Parkinson’s disease. 2023 witnessed innovative strategies in the discovery and development of senolytic drugs that are crucial for identifying effective compounds that can target senescent cells, potentially leading to treatments for age-related diseases. Drug Development: Creating new drugs targeting senescent cells to treat age-related diseases and improve healthspan. At this level, you must be totally dedicated to your longevity and target the most advanced treatments toward lifespan extension (regenerative medicine such as stem cell treatment, cartilage regeneration, platelet-rich plasma therapy, prolotherapy, etc.).
[195] AI-Based solutions for current challenges in regenerative medicine — This article examines the ways in which AI, including machine learning and data fusion techniques, can contribute to regenerative medicine, particularly in gene therapy, stem cell therapy, and tissue engineering. Regenerative medicine focuses on restoring or replacing diseased or damaged organs and tissues through advanced technologies, including gene therapy, cell therapy, and tissue engineering (Altyar et al., 2023; Nosrati et al., 2021). To work autonomously, learn from data and past experiences, and mimic human cognition, artificial intelligence (AI) systems are designed to become more proficient over time (Bays et al., 2023; Nelson et al., 2020). To meet these challenges, AI-driven predictive models and advanced experimental methods are essential for developing the next generation of cell therapies (El-Kadiry et al., 2021).
[196] mRNA therapy: A new frontier in regenerative medicine — Hence, gene and protein therapy, especially mRNA therapy, is emerging as a new promising direction in regeneration medicine through regulating the key signals.
[197] Future regenerative medicine developments and their therapeutic ... — Future regenerative medicine developments and their therapeutic applications - ScienceDirect This can be done through the application of several advanced broad-spectrum technologies such as organ transplantation, tissue engineering, and application of Scaffolds technology (support vascularization using an extracellular matrix), stem cell therapy, miRNA treatment, development of 3D mini-organs (organoids), and the construction of artificial tissues using nanomedicine and 3D bio-printers. Moreover, in the next few decades, revolutionary approaches in regenerative medicine will be applied based on artificial intelligence and wireless data exchange, soft intelligence biomaterials, nanorobotics, and even living robotics capable of self-repair. For all open access content, the Creative Commons licensing terms apply.