C-type natriuretic peptide induces redifferentiation of vascular smooth muscle cells with accelerated reendothelialization

Kentaro Doi, Tadashi Ikeda, Hiroshi Itoh, Koji Ueyama, Kiminori Hosoda, Yoshihiro Ogawa, Jun Yamashita, Tae Hwa Chun, Mayumi Inoue, Ken Masatsugu, Naoki Sawada, Yasutomo Fukunaga, Takatoshi Saito, Masakatsu Sone, Kenichi Yamahara, Hyun Kook, Masashi Komeda, Makiko Ueda, Kazuwa Nakao

研究成果: Article査読

65 被引用数 (Scopus)

抄録

We recently reported that C-type natriuretic peptide (CNP) occurs in vascular endothelial cells and acts as a vascular-type natriuretic peptide. In the present study, we stimulated the cGMP cascade in proliferating smooth muscle cells (SMCs), in which particulate guanylate cyclase-B, the specific receptor for CNP, is predominantly expressed, by use of an adenovirus encoding rat CNP cDNA (Ad.CNP). In the Ad.CNP-treated cultured SMCs, CNP caused the growth inhibition of SMCs at G1, phase with an early increase of p21CIP1/WAF1 expression and subsequent upregulation of p16INK4a. The expression of smooth muscle myosin heavy chain-2, which is the molecular marker of highly differentiated SMCs, was reinduced in the Ad.CNP-treated SMCs. The Ad.CNP-treated SMCs also reexpressed particulate guanylate cyclase-A, which shows high affinity to atrial and brain natriuretic peptide and is exclusively expressed in well-differentiated SMCs. CNP, which was overexpressed in rabbit femoral arteries in vivo at the time of balloon injury, significantly suppressed neointimal formation. Furthermore, an enhancement of the expression of smooth muscle myosin heavy chain-2 occurred in the residual neointima. In addition, early regeneration of endothelial cells was observed in the Ad.CNP-infected group. Thus, stimulation of cGMP cascade in proliferating dedifferentiated SMCs can induce growth inhibition and redifferentiation of SMCs with accelerated reendothelialization.

本文言語English
ページ(範囲)930-936
ページ数7
ジャーナルArteriosclerosis, Thrombosis, and Vascular Biology
21
6
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 循環器および心血管医学

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