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C-reactive protein derived from perivascular adipose tissue accelerates injury-induced neointimal hyperplasia.


ABSTRACT: AIM:Inflammation within the perivascular adipose tissue (PVAT) in obesity plays an important role in cardiovascular disorders. C-reactive protein (CRP) level in obesity patients is significantly increased and associated with the occurrence and progression of cardiovascular disease. We tested the hypothesis CRP derived from PVAT in obesity contributes to vascular remodeling after injury. METHODS:A high-fat diet (HFD) significantly increased CRP expression in PVAT. We transplanted thoracic aortic PVAT from wild-type (WT) or transgenic CRP-expressing (CRPTG) mice to the injured femoral artery in WT mice. RESULTS:At 4 weeks after femoral artery injury, the neointimal/media ratio was increased significantly in WT mice that received PVAT from CRPTG mice compared with that in WT mice that received WT PVAT. Transplanted CRPTG PVAT also significantly accelerated adventitial macrophage infiltration and vasa vasorum proliferation. It was revealed greater macrophage infiltration in CRPTG adipose tissue than in WT adipose tissue and CRP significantly increased the adhesion rate of monocytes through receptor Fc? RI. Proteome profiling showed CRP over-expression promoted the expression of chemokine (C-X-C motif) ligand 7 (CXCL7) in adipose tissue, transwell assay showed CRP increased monocyte migration indirectly via the induction of CXCL7 expression in adipocytes. CONCLUSION:CRP derived from PVAT was significantly increased in HFD mice and promoted neointimal hyperplasia after vascular injury.

SUBMITTER: Chen JY 

PROVIDER: S-EPMC7011279 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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C-reactive protein derived from perivascular adipose tissue accelerates injury-induced neointimal hyperplasia.

Chen Jia-Yuan JY   Zhu Xiao-Lin XL   Liu Wen-Hao WH   Xie Yong Y   Zhang Hai-Feng HF   Wang XiaoQiao X   Ying Ru R   Chen Zhi-Teng ZT   Wu Mao-Xiong MX   Qiu Qiong Q   Wang Jing-Feng JF   Chen Yang-Xin YX  

Journal of translational medicine 20200211 1


<h4>Aim</h4>Inflammation within the perivascular adipose tissue (PVAT) in obesity plays an important role in cardiovascular disorders. C-reactive protein (CRP) level in obesity patients is significantly increased and associated with the occurrence and progression of cardiovascular disease. We tested the hypothesis CRP derived from PVAT in obesity contributes to vascular remodeling after injury.<h4>Methods</h4>A high-fat diet (HFD) significantly increased CRP expression in PVAT. We transplanted t  ...[more]

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