Inhibitory effects of docetaxel on platelet-derived growth factor (PDGF)-BB-induced proliferation of vascular smooth muscle cells through blocking PDGF-receptor β phosphorylation

DOI Web Site 被引用文献1件 参考文献89件
  • Park Eun Seok
    College of Pharmacy, CBITRC, Chungbuk National University, Korea
  • Yoo Jae-Myung
    College of Pharmacy, Chungnam National University, Korea
  • Lim Yong
    Department of Clinical Laboratory Science, Dong-eui University, Korea
  • Tudev Munkhtsetseg
    College of Pharmacy, CBITRC, Chungbuk National University, Korea
  • Yoo Hwan-Soo
    College of Pharmacy, CBITRC, Chungbuk National University, Korea
  • Hong Jin Tae
    College of Pharmacy, CBITRC, Chungbuk National University, Korea College of Pharmacy and Medical Research Center, Chungbuk National University, Korea
  • Yun Yeo-Pyo
    College of Pharmacy, CBITRC, Chungbuk National University, Korea

書誌事項

タイトル別名
  • Inhibitory Effects of Docetaxel on Platelet-Derived Growth Factor (PDGF)-BB-Induced Proliferation of Vascular Smooth Muscle Cells Through Blocking PDGF-Receptor .BETA. Phosphorylation
  • Inhibitory effects of docetaxel on platelet derived growth factor PDGF BB induced proliferation of vascular smooth muscle cells through blocking PDGF receptor v phosphorylation

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抄録

The abnormal proliferation of vascular smooth muscle cells (VSMCs) in arterial wall is an important pathogenic factor for vascular disorders such as atherosclerosis and restenosis after angioplasty. The present study was designed to investigate the inhibitory effects of docetaxel on VSMC proliferation, as well as the molecular mechanism of this inhibition. Docetaxel at 10, 20 and 40 μM significantly inhibited both the proliferation and the DNA synthesis of fetal bovine serum (FBS)- and platelet-derived growth factor (PDGF)-BB–stimulated VSMCs in a concentration-dependent manner. In accordance with these findings, docetaxel blocked the FBS- and PDGF-BB–induced progression of synchronized cells through the G0/G1 phase of the cell cycle. Docetaxel also decreased the expressions of cell cycle-related proteins, including cyclin-dependent kinase (CDK) 2, cyclin E, CDK4, cyclin D1, retinoblastoma protein, and proliferative cell nuclear antigen in PDGF-BB–stimulated VSMCs. Docetaxel significantly inhibited the phosphorylation of extracellular signal-regulated kinase 1/2, Akt, and phospholipase C-γ1, downstream molecule in the PDGF-BB signaling pathway. Docetaxel suppressed the phosphorylation of PDGF receptor (PDGF-R) β, the upstream molecule in PDGF-BB signaling cascade, suggesting that the inhibitory effect of docetaxel on the proliferation of VSMCs may occur by blocking PDGF-Rβ phosphorylation. Thus, docetaxel may be a potential antiproliferative agent for the treatment of atherosclerosis and angioplasty restenosis.<BR>[Supplementary Figures: available only at http://dx.doi.org/10.1254/jphs.10276FP]

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