吉林大学学报(医学版) ›› 2004, Vol. 30 ›› Issue (3): 342-344.doi: 教育部留学归国人员启动基金资助课题

• 基础研究 • 上一篇    下一篇

同型半胱氨酸对血管平滑肌细胞α1[Ⅰ]及α1[Ⅲ]型胶原mRNA表达的影响

王金凤,任立群, 李广生,王思思   

  1. 吉林大学再生医学科学研究所病理研究室,吉林,长春130021
  • 收稿日期:2003-07-08 修回日期:1900-01-01 出版日期:2004-05-28 发布日期:2004-05-28

Effects of homocysteine on expression of alpha 1(Ⅰ)and (Ⅲ) collagen mRNA of vascular smooth muscle cells

WANG Jin-feng, REN Li-qun,LI Guang-sheng,WANG Si-si   

  1. Department of Pathology, Institute of Frontier Medical Sciences,Jilin University, Changchun 130021,China
  • Received:2003-07-08 Revised:1900-01-01 Online:2004-05-28 Published:2004-05-28

摘要: 目的:观察同型半胱氨酸(Hcy)对血管平滑肌细胞(VSMCs)胶原合成的影响。方法:采用体外培养的大鼠VSMCs,加入不同浓度的Hcy(0、0.10、0.25、0.50和1.00 mmol•L-1)作用后,通过测定培养基中羟脯氨酸含量和半定量RT-PCR法检测Hcy对VSMCs胶原合成及对α1[Ⅰ]、α1[Ⅲ]型胶原mRNA表达的影响。结果:Hcy促进VSMCs胶原合成及α1[Ⅰ]型、α1[Ⅲ]型胶原mRNA表达,并呈剂量依赖效应。结论:Hcy促进VSMCs胶原合成,可能是通过上调α1[Ⅰ]、α1[Ⅲ]型胶原mRNA表达实现的。

关键词: 半胱氨酸, 肌;平滑;血管, 胶原Ⅰ型, 胶原Ⅲ型, 大鼠;Wistar

Abstract: Objective To study the effect of homocysteine(Hcy) on collagen synthesis and the expression of type Ⅰand Ⅲ collagen mRNA of vascular smooth muscle cells(VSMCs) in culture. Methods The VSMCs of rats were cultured in Hcy with different concentrations in vitro. The effects of Hcy on collagen synthesis and on the expressions of alpha 1 (Ⅰ) and (Ⅲ) collagen mRNA of VSMCs were observed by determining hydroxyproline contents in the culture medium and semi-quantitative RT-PCR. Results Hcy accelerated collagen synthesis and up-regulated the expressions of alpha 1 (Ⅰ)and (Ⅲ) collagen mRNA of VSMCs in a dose-dependent manner. Conclusion Hcy can promote collagen synthesis through up-regulating alpha 1(Ⅰ)and (Ⅲ) collagen mRNA expressions in VSMCs in culture.

Key words: cysteine, muscle;smooth;vascular, collagen type Ⅰ, collagen type Ⅲ, rats;Wistar

中图分类号: 

  • Q5