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MC1568 Enhances Histone Acetylation During Oocyte Meiosis and Improves Development of Somatic Cell Nuclear Transfer Embryos in Pig

文献类型： 外文期刊

作者： Wang, Huili 1 ; Cui, Wei 2 ; Meng, Chunhua 1 ; Zhang, Jun 1 ; Li, Yinxia 1 ; Qian, Yong 1 ; Xing, Guangdong 1 ; Zhao, Don 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Jiangsu, Peoples R China

2.Univ Massachusetts, Dept Vet & Anim Sci, Amherst, MA 01003 USA

3.Jiangsu Acad Agr Sci, Inst Vet Med, Nanjing, Jiangsu, Peoples R China

关键词： HDACs;MC1568;class IIa;SCNT;porcine oocytes

期刊名称：CELLULAR REPROGRAMMING （ 影响因子：1.987； 五年影响因子：1.887 ）

ISSN： 2152-4971

年卷期： 2018 年 20 卷 1 期

页码：

收录情况： SCI

摘要： An increasing number of studies have revealed that histone deacetylase (HDAC) mediated histone deacetylation is important for mammalian oocyte development. However, nonselective HDAC inhibitors (HDACi) were applied in most studies; the precise functions of specific HDAC classes during meiosis are poorly defined. In this study, the class IIa-specific HDACi MC1568 was used to reveal a crucial role of class IIa HDACs in the regulation of histone deacetylation during porcine oocyte meiosis. Besides, the functions of HDACs and histone acetyltransferases in regulating the balance of histone acetylation/deacetylation were also confirmed during oocyte maturation. After the validation of nontoxicity of MC1568 in maturation rate, spindle morphology, and chromosome alignment, effects of MC1568 on developmental competence of porcine somatic cell nuclear transfer (SCNT) embryos were evaluated, and data indicated that treatment with 10 mu M MC1568 for 12 hours following electrical activation significantly enhanced the blastocyst rate and cell numbers. Moreover, results showed that optimal MC1568 treatment increased the H4K12 acetylation level in SCNT one cells and two cells. In addition, MC1568 treatment stimulated expression of the development-related genes OCT4, CDX2, SOX2, and NANOG in SCNT blastocysts. Collectively, our investigation uncovered a critical role of class IIa HDACs in the regulation of histone deacetylation during oocyte meiosis. Furthermore, for the first time, we showed that MC1568 can improve the in vitro development of porcine SCNT embryos. These findings provide an alternative HDACi for improving animal cloning efficiency and may shed more light on nuclear reprogramming.

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