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Histone Deacetylase Inhibitor Significantly Improved the Cloning Efficiency of Porcine Somatic Cell Nuclear Transfer Embryos.
MedLine Citation:
PMID:  22029418     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Valproic acid (VPA), a histone deacetylase inbibitor, has been shown to generate inducible pluripotent stem (iPS) cells from mouse and human fibroblasts with a significant higher efficiency. Because successful cloning by somatic cell nuclear transfer (SCNT) undergoes a full reprogramming process in which the epigenetic state of a differentiated donor nuclear is converted into an embryonic totipotent state, we speculated that VPA would be useful in promoting cloning efficiency. Therefore, in the present study, we examined whether VPA can promote the developmental competence of SCNT embryos by improving the reprogramming state of donor nucleus. Here we report that 1 mM VPA for 14 to 16 h following activation significantly increased the rate of blastocyst formation of porcine SCNT embryos constructed from Landrace fetal fibroblast cells compared to the control (31.8 vs. 11.4%). However, we found that the acetylation level of Histone H3 lysine 14 and Histone H4 lysine 5 and expression level of Oct4, Sox2, and Klf4 was not significantly changed between VPA-treated and -untreated groups at the blastocyst stage. The SCNT embryos were transferred to 38 surrogates, and the cloning efficiency in the treated group was significantly improved compared with the control group. Taken together, we have demonstrated that VPA can improve both in vitro and in vivo development competence of porcine SCNT embryos.
Authors:
Yongye Huang; Xiaochun Tang; Wanhua Xie; Yan Zhou; Dong Li; Chaogang Yao; Yang Zhou; Jianguo Zhu; Liangxue Lai; Hongsheng Ouyang; Daxin Pang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-26
Journal Detail:
Title:  Cellular reprogramming     Volume:  -     ISSN:  2152-4998     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528176     Medline TA:  Cell Reprogram     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Jilin Province Key Laboratory of Animal Embryo Engineering, College of Animal Science and Veterinary Medicine, Jilin University , Changchun, People's Republic of China .
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