摘要
表观遗传是指在DNA序列不发生改变情况下,基因表达发生可遗传性改变的现象.表观遗传在疾病发生发展中发挥重要作用,其机制十分复杂,包括DNA甲基化、组蛋白修饰和非编码RNA等.2型糖尿病是一种由遗传和环境因素共同作用而发生的复杂多基因遗传性疾病,其病因和发病机制目前尚未完全阐明.近年研究发现,表观遗传直接或间接调控胰岛β细胞的发育、分化、分泌功能以及机体对胰岛素的敏感性,参与2型糖尿病的发生和发展.对表观遗传调控的研究将为阐明2型糖尿病发病机制,及预防和治疗2型糖尿病提供新的思路和靶点.
[Summary] Epigenetics defines heritable changes in gene expression that are not coded in the DNA sequence itself.Three systems,including DNA methylation,RNA-associated silencing and histone modification,are used to initiate and sustain epigenetic silencing.Type 2 diabetes mellitus（T2DM） is a polygenic disorder,which is caused by both genetic and environmental factors.However,pathogenesis of T2DM has not been elucidated.Recent studies have indicated that epigenetics may play an important role in the pathogenesis of T2DM,which is involved in the development and differentiation of β cell,secretion of β cell,insulin sensitivity and so on.Researches related to epigenetics may provide a new measure and target to clarify the pathogenesis of T2DM as well as prevent and treat the disease.
出处
《中华内分泌代谢杂志》
CAS
CSCD
北大核心
2015年第1期78-82,共5页
Chinese Journal of Endocrinology and Metabolism
基金
国家自然科学基金项目（810333）
关键词
糖尿病
2型
表观遗传
胰岛Β细胞
Diabetes mellitus,type 2
Epigenetics
Pancreatic β cell
作者简介
通信作者：丁晓颖，Email：xiaoyingding@126．com
