Essential role of vascular endothelial growth factor and Flt-1 signals in neointimal formation after periadventitial injury

Qingwei Zhao, Kensuke Egashira, Ken Ichi Hiasa, Minako Ishibashi, Shujiro Inoue, Kisho Ohtani, Chunyan Tan, Masabumi Shibuya, Akira Takeshita, Kenji Sunagawa

研究成果: ジャーナルへの寄稿記事

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Objective - Vascular endothelial growth factor (VEGF) is upregulated after arterial injury. Its role in the pathogenesis of neointimal formation after periadventitial injury, however, has not been addressed. Methods and Results - Expression of VEGF and its receptors but not that of placental growth factor markedly increased with the development of neointimal formation in hypercholesterolemic mice after cuff-induced periarterial injury. Transfection with the murine soluble Flt-1 (sFlt-1) gene to block VEGF in vivo in mice inhibited early inflammation and later neointimal formation. The sFlt-1 gene transfer did not affect plasma lipid levels but attenuated increased expression of VEGF, Flt-1, Flk-1, monocyte chemoattractant protein-1, and other inflammation-promoting factors. Mice with Flt-1 kinase deficiency also displayed reduced neointimal formation. Conclusions - Inflammatory changes mediated by VEGF and Flt-1 signals play an important role in the pathogenesis of neointimal formation after cuff-induced periadventitial injury. VEGF might promote neointimal formation by acting as a proinflammatory cytokine.

元の言語英語
ページ(範囲)2284-2289
ページ数6
ジャーナルArteriosclerosis, thrombosis, and vascular biology
24
発行部数12
DOI
出版物ステータス出版済み - 12 1 2004

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All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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