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C1q/TNF-related protein-1: an adipokine marking and promoting atherosclerosis
Lin Lu1, Rui Yan Zhang2, Xiao Qun Wang1
1Department of Cardiology, Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China Institute of Cardiovascular Diseases, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People's Republic of China.
C1q/TNF-related protein-1 (CTRP1) is elevated in coronary artery disease (CAD) patients and promotes atherosclerosis by increasing inflammation and monocyte adhesion. CTRP1 is a potential therapeutic target for preventing CAD progression.
Area of Science:
- Cardiovascular Biology
- Immunology
- Molecular Medicine
Background:
- Coronary artery disease (CAD) is a significant global health burden.
- Adipokines, like C1q/TNF-related protein (CTRP) 1, play roles in metabolic and cardiovascular health.
- The specific role of CTRP1 in the pathogenesis of CAD requires further elucidation.
Purpose of the Study:
- To investigate the association between CTRP1 levels and CAD in humans.
- To determine the biological effects of CTRP1 on vascular cells and its role in atherogenesis.
- To explore CTRP1 as a potential biomarker and therapeutic target for CAD.
Main Methods:
- Analysis of CTRP1 serum levels in CAD patients and controls.
- Immunohistochemical assessment of CTRP1 expression in human atherosclerotic tissues.
- In vitro studies on CTRP1's effects on endothelial cells and monocytes.
- In vivo studies using mouse models (apoE-/- and CTRP1-/-/apoE-/-) to assess CTRP1's role in atherogenesis.
Main Results:
- CTRP1 levels were significantly higher in CAD patients' sera and atherosclerotic tissues compared to controls.
- CTRP1 induced inflammatory markers and adhesion molecules in vascular cells, promoting monocyte-endothelial adhesion.
- CTRP1 administration promoted atherogenesis in apoE-/- mice, an effect attenuated in CTRP1 deficient mice.
- CTRP1 deficiency reduced inflammatory responses and macrophage infiltration in atherosclerotic plaques.
Conclusions:
- CTRP1 is a novel biomarker associated with CAD severity.
- CTRP1 actively promotes atherogenesis through inflammatory pathways and leukocyte recruitment.
- Targeting CTRP1 may offer a therapeutic strategy for mitigating atherosclerosis and CAD progression.
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