Inflammatory Cytokine Dynamics in Cardiovascular Disease
Summary
Inflammatory cytokines orchestrate the onset and progression of cardiovascular disease through a dynamic interplay of local and systemic signalling. Key mediators such as interleukin-6, tumour necrosis factor-α and interleukin-1β are synthesised by vascular endothelial cells, smooth muscle cells, fibroblasts and infiltrating immune cells in response to biomechanical stress, lipid accumulation and hypoxia. These molecules initiate and sustain inflammatory cascades that promote endothelial dysfunction, monocyte recruitment, extracellular matrix remodelling and plaque vulnerability. Following an ischaemic event, temporal fluctuations in cytokine profiles govern inflammatory resolution, tissue repair and ventricular remodelling. Persistent low-grade elevations of interleukin-6 and high-sensitivity C-reactive protein correlate with adverse clinical outcomes and residual inflammatory risk despite optimal lipid-lowering therapy. Recent advances in multimodal imaging, single-cell transcriptomics and multiplex protein assays have enabled longitudinal characterisation of cytokine networks in circulation and within atherosclerotic plaques, revealing cellular heterogeneity and regional differences. Insights into cross-talk between the NLRP3 inflammasome and interleukin-6 receptor pathways have identified nodal points for interventional targeting. Genetic and Mendelian randomisation studies further support a causal role for interleukin-6 signalling in coronary heart disease, motivating trials of selective blockade. Given the global burden of cardiovascular morbidity, refining anti-inflammatory strategies that mitigate risk while preserving host defence remains a priority.
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Inflammatory Cytokine Dynamics in Cardiovascular Disease publication trend
The graph below shows the total number of articles in inflammatory cytokine dynamics in cardiovascular disease across all publications each year (not limited to Nature Index journals).
Technical terms
Cytokine: Small signalling protein released by cells that modulates immune and inflammatory responses.
Interleukin-6 (IL-6): A pleiotropic cytokine that mediates pro- and anti-inflammatory effects in vascular and systemic contexts.
Atherosclerosis: Chronic disease characterised by lipid accumulation, inflammatory cell infiltration and plaque formation in arterial walls.
Myocardial infarction: Ischaemic injury to heart muscle caused by occlusion of coronary arteries leading to tissue necrosis.
Inflammasome: Multiprotein complex in innate immune cells that activates inflammatory cytokines such as interleukin-1β.
References
- Different Oxidative Stress and Inflammation Patterns of Diseased Left Anterior Descending Coronary Artery versus Internal Thoracic Artery. Antioxidants (2024).
- The interleukin-6 receptor as a target for prevention of coronary heart disease: a mendelian randomisation analysis. The Lancet (2012).
- Targeting Residual Inflammatory Risk: A Shifting Paradigm for Atherosclerotic Disease. Frontiers in Cardiovascular Medicine (2019).
- Targeting Inflammatory Pathways in Cardiovascular Disease: The Inflammasome, Interleukin-1, Interleukin-6 and Beyond. Cells (2021).
- The Role of Interleukin-6 Family Members in Cardiovascular Diseases. Frontiers in Cardiovascular Medicine (2022).
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