C-reactive protein incites atherosclerosis.

Area of Science:

• Cardiovascular Research
• Inflammation Biology
• Vascular Medicine

Background:

• C-reactive protein (CRP) is increasingly recognized as a significant predictor of cardiovascular events.
• Emerging evidence suggests a proatherogenic role for CRP in the development of cardiovascular disease.
• Understanding CRP's mechanisms is crucial for cardiovascular risk assessment and therapeutic strategies.

Purpose of the Study:

• To review current data on the direct proatherogenic effects of C-reactive protein (CRP).
• To explore CRP's impact on endothelial function and vascular repair mechanisms.
• To highlight CRP's role in endothelial dysfunction and progenitor cell activity.

Main Methods:

• Literature review of experimental and clinical studies investigating CRP's role in cardiovascular pathology.
• Analysis of data concerning CRP's effects on endothelium-derived factors (nitric oxide, endothelin, angiotensin, IL-6).
• Examination of studies assessing CRP's influence on endothelial progenitor cell survival and differentiation.

Main Results:

• CRP directly contributes to endothelial dysfunction by altering the balance of contracting and relaxing factors.
• CRP negatively impacts nitric oxide bioavailability and promotes pro-inflammatory signaling via interleukin-6.
• CRP inhibits the survival and differentiation of bone marrow-derived endothelial progenitor cells, crucial for neovascularization.

Conclusions:

• C-reactive protein (CRP) actively promotes atherosclerosis through direct pro-inflammatory and pro-oxidant effects on the endothelium.
• CRP's detrimental impact on endothelial progenitor cells compromises the vasculature's capacity for repair and regeneration.
• CRP represents a key molecular target for novel therapeutic interventions aimed at preventing cardiovascular events.