Inflammation Overview

Principles

Definition

Inflammation is a fundamental biological response of vascularized tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. As a critical area of study in biomedical science, it investigates the complex cellular and molecular mechanisms underlying tissue defense, repair, and the pathogenesis of numerous diseases.

Ontological type

Molecular Pathways

Disease Associations

Cellular Players

Key developments

Key Figures

Cellular and Vascular Foundations era

John T. Sharp [1] affiliated with the Institute of Cancer Research [3] and Harvard University [4] during this era. His key contributions in this era include the 1987 revised criteria for the classification of rheumatoid arthritis, published in 1988 [7], which standardized inflammatory disease research and enabled cross-study comparisons. Thomas A. Medsger [2] affiliated with the University of Pennsylvania [5] and Boston University [6] during this era. His key contributions in this era include the same rheumatoid arthritis criteria paper [7], which provided a robust framework for classifying inflammatory rheumatic disease and shaped subsequent vascular–cellular research in this era.

Endothelial Redox Atherogenesis era

Barry Halliwell [1], associated with Harvard University [3] and Baylor College of Medicine [4], emerged as a central figure shaping redox perspectives in the Endothelial Redox Atherogenesis era. Halliwell [1] and the landmark paper Free radicals in biology and medicine [7] crystallized the role of reactive oxygen species and redox signaling in inflammation and endothelial activation, establishing a framework that underpinned risk stratification and redox-targeted therapies in this era. John M.C. Gutteridge [2], linked with Imperial College London [5] and King's College London [6], contributed to the same foundational text Free radicals in biology and medicine [7], helping to translate redox concepts into vascular biology and highlighting oxidant regulation as a driver of endothelial dysfunction. Gutteridge's work [2] and the 1991 paper Free radicals in biology and medicine [7] provided a mechanistic bridge between oxidative stress and atherogenesis, underscoring how endothelial redox shifts modulate adhesion and leukocyte recruitment that define early plaque development in this era.

NLRP3 Inflammasome Metainflammation era

Christie M. Ballantyne [1] is a cardiovascular scientist affiliated with Harvard University [3] and the University of California, San Francisco [4] during this era. Her key contributions in this era are exemplified by Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease [6], a 2017 study demonstrating that IL-1β–targeted therapy can reduce cardiovascular events and highlighting inflammasome-driven inflammation as a therapeutic axis. Paul M. Ridker [2] is a cardiovascular epidemiologist affiliated with Harvard University [3] and the Massachusetts Institute of Technology [5] during this era. His key contributions in this era are exemplified by Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease [6], which provided pivotal clinical evidence that targeting IL-1β can reduce vascular events and thereby validate NLRP3-related inflammatory mechanisms in metabolic disease.