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Effects of trichostatin A on pig SCNT blastocyst formation rate and cell number: A meta-analysis

文献类型： 外文期刊

作者： Guo, Zhenhua 1 ; Lv, Lei 3 ; Liu, Di 1 ; Fu, Bo 1 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Anim Husb Res Inst, Key Lab Combining Farming & Anim Husb, Postdoctoral Programme,Minist Agr, 368 Xuefu Rd, Harbin 150086, Heilongjiang, Peoples R China

2.Minist Agr, Key Lab Farm Anim Genet Resources & Germplasm Inn, 2 Yuanmingyuanxi Rd, Beijing 100193, Peoples R China

3.Heilongjiang Acad Forestry, Wood Sci Res Inst, 134 Hoping Rd, Harbin 150080, Heilongjiang, Peoples R China

关键词： Blastocyst cell number; Meta-analysis; SCNT; Pig; Trichostatin A

期刊名称：RESEARCH IN VETERINARY SCIENCE （ 影响因子：2.534； 五年影响因子：2.382 ）

ISSN： 0034-5288

年卷期： 2018 年 117 卷

页码：

收录情况： SCI

摘要： Although somatic cell nuclear transfer (SCNT) can be used to create transgenic pigs for human xeno-transplantation, low efficiency limits its use. Trichostatin A (TSA) promotes SCNT embryo development, but whether TSA modifies SCNT blastocyst numbers is unclear. Thus, there is an urgent need to understand whether TSA modifies the rate and number of embryos that grow from oocytes to blastocysts in culture and what types of cell signaling pathways may be involved. Thus, we identified 63 reports, of which 13 are included in this meta analysis. Data show that TSA significantly increased the SCNT blastocyst formation rate, but did not change blastocyst cell number. Due to study heterogeneity (I-2 > 50%), we hypothesized that donor cells were of different backgrounds so we analyzed two donor cell subgroups: fetal and adult fibroblasts. Analysis of the fetal fibroblast subgroups showed no heterogeneity, but the adult fibroblast subgroups were heterogeneous, suggesting epigenetic reprogramming of fetal fibroblasts by TSA. Adult fibroblast heterogeneity may be complex and reprogramming by TSA is more difficult. Thus, TSA fibroblasts reprogramming is the source of heterogeneity in this meta-analysis. More work is needed to better understand how TSA influences SCNT pig embryonic development, and histone deacetylase inhibitors can be assessed with respect to SCNT pig embryos. Finally, efforts in epigenetic research may improve SCNT pig embryo outcomes.

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