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学科主题临床医学
Intramuscular gene transfer of CGRP inhibits neointimal hyperplasia after balloon injury in the rat abdominal aorta
Wang, W; Sun, W; Wang, X
关键词restenosis apoptosis vascular smooth muscle cells proliferation nitric oxide
刊名AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
2004-10-01
DOI10.1152/ajpheart.00168.2004
287期:4页:H1582-H1589
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Cardiac & Cardiovascular Systems ; Physiology ; Peripheral Vascular Disease
研究领域[WOS]Cardiovascular System & Cardiology ; Physiology
关键词[WOS]SMOOTH-MUSCLE-CELLS ; NITRIC-OXIDE SYNTHASE ; CARDIOVASCULAR-SYSTEM ; VASCULAR-DISEASE ; CYCLIC-AMP ; KAPPA-B ; PEPTIDE ; APOPTOSIS ; ADRENOMEDULLIN ; INDUCTION
英文摘要

CGRP is a well-known neuropeptide that has various protective effects on cardiovascular system. Our previous studies have shown that CGRP inhibits vascular smooth muscle cell (VSMC) proliferation in vitro. The present study aimed to explore the role of the CGRP in neointimal formation after balloon injury in the rat aortic wall and the underlying mechanism. Gene transfer of CGRP was performed with the use of intramuscular electroporation in a balloon-injured rat aorta model. Apoptosis in VSMCs was determined by electrophoresis assessment of DNA fragmentation and terminal deoxynucleotide transferase-mediated dUTP nick-end labeling assay. Overexpression of the CGRP gene significantly inhibited the neointimal formation after balloon injury compared with the mock transfer, as assessed by the intima-to-media ratio 14 days after balloon injury (29.2 +/- 3.7% vs. 52.7 +/- 5.4%; n = 9 - 12, P < 0.05). In addition, CGRP gene expression increased the number of apoptotic cells in the neointima in vivo 14 days after balloon injury. Similarly, the addition of bioactive CGRP and the nitric oxide donor induced similar apoptosis in cultured VSMCs. The antagonist of the CGRP(1) receptor and inhibitors of cAMP-PKA and nitric oxide blocked CGRP-mediated apoptosis. Furthermore, CGRP gene transfer increased inducible nitric oxide synthase and p53 but decreased PCNA and Bcl-2 protein levels in balloon-injured rat aorta. Our data demonstrated that CGRP potently inhibited neointimal thickening in the rat aorta, at least in part through its distinct effects on apoptosis and proliferation of VSMCs both in vivo and in vitro. Therefore, delivery of the CGRP gene may have therapeutic implications in limiting vascular restenosis.

语种英语
WOS记录号WOS:000223895800019
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/59072
专题北京大学第三临床医学院_心血管内科
作者单位1.Peking Univ, Hosp 3, Inst Vasc Med, Beijing 100083, Peoples R China
2.Peking Univ, Hlth Sci Ctr, Dept Physiol, Beijing 100083, Peoples R China
3.Peking Univ, Hlth Sci Ctr, Educ Minist, Key Lab Mol Cardiovasc Sci, Beijing 100083, Peoples R China
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Wang, W,Sun, W,Wang, X. Intramuscular gene transfer of CGRP inhibits neointimal hyperplasia after balloon injury in the rat abdominal aorta[J]. AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY,2004,287(4):H1582-H1589.
APA Wang, W,Sun, W,&Wang, X.(2004).Intramuscular gene transfer of CGRP inhibits neointimal hyperplasia after balloon injury in the rat abdominal aorta.AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY,287(4),H1582-H1589.
MLA Wang, W,et al."Intramuscular gene transfer of CGRP inhibits neointimal hyperplasia after balloon injury in the rat abdominal aorta".AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY 287.4(2004):H1582-H1589.
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