国际麻醉学与复苏杂志   2012, Issue (9): 1-1
    
自噬与沉默信息调节因子蛋白家族对心肌缺血/再灌注的影响
俞莹, 刘新伟1()
1.重庆医科大学
Potential roles of autophagy and silent information regulator protein family in myocardial ischemia/reperfusion injury
 全文:
摘要:

背景 自噬是一种细胞本体的降解过程。它以溶酶体的方式参与或老化非正常的细胞蛋白及细胞本身的降解。许多研究证实自噬水平在心肌缺血/再灌注(ischemia/reperfusion, I/R)中增高,但对于自噬在再灌注中的作用,现在争议较大。同时有研究证实新发现的与长寿相关的沉默信息调节因子蛋白(silent information regulator protein, Sirt)家族可能参与了自噬对I/R的调节。目的 了解Sirt蛋白家族、自噬及I/R这三者间的联系。内容 对自噬的基本过程,自噬的分子机制,自噬在心肌I/R中的作用,自噬与Sirt家族的关系做一综述。趋向 促进对自噬的深入了解,期望对Sirt家族在心肌保护方面的作用提供新的认识。

关键词: 自噬;缺血/再灌注;心肌细胞;自噬相关基因;沉默信息调节因子蛋白家族;寿命
Abstract:

Background Autophagy is the endogenous, tightly regulated cellular process responsible for the degradation of damaged and dysfunctional cellular organelles and protein aggregates. There is a growing consensus that autophagy is upregulated in the setting of myocardial ischemia/reperfusion(I/R), but it has also been unclear whether autophagy is protective or detrimental in response to I/R. Silent information regulator protein(Sirt) Family,which was considered as a longevity factor, may be involved in the regulation of autophagy in I/R. Objective To understand the relationship of Sirt family, autophagy and I/R. Content Thereview will discussthe basic process of autophagy, molecular machinery and signaling pathways of autophagy, the role of autophagy during I/R , and the relationship between Sirt family and autophagy. Trend In addition to understand the concept of autophagy deeply, the role of Sirt family in myocardial protection needs further exploration.

Key words: Autophagy; Ischemia/reperfusion; Cardiac myocytes; ATG genes;Silent information regulator protein family;Longevity