Mycophenolate mofetil attenuates pulmonary arterial hypertension in rats

Chihiro Suzuki, Masafumi Takahashi, Hajime Morimoto, Atsushi Izawa, Hirohiko Ise, Minoru Hongo, Yasushi Hoshikawa, Takayuki Ito, Hiroshi Miyashita, Eiji Kobayashi, Kazuyuki Shimada, Uichi Ikeda

研究成果: Contribution to journalArticle査読

28 被引用数 (Scopus)


Pulmonary arterial hypertension (PAH) is characterized by abnormal proliferation of smooth muscle cells (SMCs), leading to occlusion of pulmonary arterioles, right ventricular (RV) hypertrophy, and death. We investigated whether mycophenolate mofetil (MMF), a potent immunosuppresssant, prevents the development of monocrotaline (MCT)-induced PAH in rats. MMF effectively decreased RV systolic pressure and RV hypertrophy, and reduced the medial thickness of pulmonary arteries. MMF significantly inhibited the number of proliferating cell nuclear antigen (PCNA)-positive cells, infiltration of macrophages, and expression of P-selectin and interleukin-6 on the endothelium of pulmonary arteries. The infiltration of T cells and mast cells was not affected by MMF. In vitro experiments revealed that mycophenolic acid (MPA), an active metabolite of MMF, dose-dependently inhibited proliferation of human pulmonary arterial SMCs. MMF attenuated the development of PAH through its anti-inflammatory and anti-proliferative properties. These findings provide new insight into the potential role of immunosuppressants in the treatment of PAH.

ジャーナルBiochemical and Biophysical Research Communications
出版ステータス出版済み - 10 20 2006

All Science Journal Classification (ASJC) codes

  • 生物理学
  • 生化学
  • 分子生物学
  • 細胞生物学


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