生物技术进展 ›› 2022, Vol. 12 ›› Issue (1): 27-35.DOI: 10.19586/j.2095-2341.2021.0132

• 进展评述 • 上一篇    下一篇

组蛋白甲基转移酶ASH2的研究进展

王婉洁(), 陈南珠, 郝海生, 赵学明, 朱化彬, 杜卫华()   

  1. 中国农业科学院北京畜牧兽医研究所,家畜胚胎工程与繁殖创新团队,北京 100193
  • 收稿日期:2021-07-13 接受日期:2021-10-08 出版日期:2022-01-25 发布日期:2022-01-26
  • 通讯作者: 杜卫华
  • 作者简介:王婉洁E-mail:wangwanjie101@163.com
  • 基金资助:
    中国农业科学院科技创新工程项目(ASTIP-IAS06)

Research Progress of Histone Methyltransferases ASH2

Wanjie WANG(), Nanzhu CHEN, Haisheng HAO, Xueming ZHAO, Huabin ZHU, Weihua DU()   

  1. Embryo Biotechnologies and Reproduction in Domestic Animals,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China
  • Received:2021-07-13 Accepted:2021-10-08 Online:2022-01-25 Published:2022-01-26
  • Contact: Weihua DU

摘要:

表观遗传修饰通过改变染色质空间构象和基因表达调控胚胎发育、细胞分化、器官发生和癌症形成,其调控形式包括组蛋白甲基化、组蛋白乙酰化、DNA甲基化、基因印迹和X染色体失活等。缺失的、小的、同源异形2(absent, small, homologous 2,ASH2)是组蛋白赖氨酸甲基转移酶复合物的核心成分,其属于三胸腔结构蛋白家族;在哺乳动物中ASH2可特异性甲基化H3K4,激活基因转录。在介绍组蛋白甲基化和三胸腔结构蛋白的基础上,综述了ASH2甲基酶对基因转录、HOX基因表达、癌症发生发展和细胞分化的调控功能,以期为其在动物繁育和人类疾病治疗中的应用提供思路。

关键词: 组蛋白甲基转移酶, ASH2, 表观遗传调控

Abstract:

Epigenetic modification regulates embryo development, cell differentiation, organogenesis and cancer formation via altering chromatin spatial conformation and gene expression. This regulation involves histone methylation, histone acetylation, DNA methylation, gene imprinting, and X chromosome inactivation, etc. Absent, small, homologous 2 (ASH2) is the core component of histone lysine methyltransferase and belongs to the trithorax group. In mammals, ASH2 methylates specifically H3K4 and activates gene transcription. Based on the brief introduction of histone methylation and the trithorax group proteins, this paper reviewed the functions of ASH2 in regulating gene transcription, HOX gene expression, cancer formation and cell differentiation, in order to provide ideas for its application in animal breeding and human disease treatment.

Key words: histone methyltransferase, ASH2, epigenetic regulation

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