ангиотензин转化酶2 是心脏功能的一个重要调节剂
Michael A Crackower1, Renu Sarao, Gavin Y Oudit
1Amgen Research Institute/Ontario Cancer Institute and Department of Medical Biophysics and Immunology, University of Toronto, University Avenue, Toronto, Ontario M5G 2M9, Canada.
Nature
|June 21, 2002
概括
ангиотензин转化酶2 (ACE2) 对心脏功能至关重要. 减少ACE2表达与高血压有关,其破坏导致严重的心脏缺陷,突出其在心血管健康中的作用.
科学领域:
- 心血管生物学心血管生物学
- 遗传学 是一个遗传学.
- 高血压研究研究 高血压研究
背景情况:
- 心血管疾病是导致死亡的主要原因.
- 高血压是心血管疾病的主要危险因素.
- ангиотензин转化酶2 (ACE2) 在心血管健康中的作用需要进一步阐明.
研究的目的:
- 研究血管酶转化酶2 (ACE2) 在高血压和心脏功能中的作用.
- 确定与高血压和心血管缺陷相关的遗传因素.
主要方法:
- 在大鼠高血压模型中,将ACE2基因映射到X染色体上的定量特征位置 (QTL).
- 在高血压大鼠中分析ACE2信使RNA和蛋白质表达.
- 在小鼠中研究ACE2的基因干扰及其同类ACER在Drosophila.
- 在ACE2突变小鼠中进行了ACE基因切除的遗传救援实验.
主要成果:
- 在高血压大鼠中,ACE2映射到X染色体上的QTL.
- 在高血压的老鼠株中,ACE2的表达减少.
- 在小鼠中ACE2的干扰导致心脏功能障碍,血管新生二酶的升高,以及心脏缺氧基因的升调.
- 在ACE2突变小鼠中,ACE的遗传切除可以挽救心脏表型.
- 干扰多索菲拉ACER会导致心脏形态发生缺陷.
结论:
- ACE2 是高血压相关QTLs的候选基因.
- 在体内,ACE2是心脏功能的重要调节者.
- 由ACE2调节的氨酸-血管素系统在保持心脏健康方面发挥着至关重要的作用.
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