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Effect of trichostatin A on transfected donor cells and subsequent development of porcine cloned embryos

Published online by Cambridge University Press:  23 June 2010

Fu Bo ,
Liu Di ,
Fang Qing-chang ,
Ren Liang ,
Ma Hong ,
Wang Liang ,
Guo Zhen-hua  and
Li Zhong-qiu
Fu Bo
Affiliation:
College of Life Science, Northeast Agriculture University, Harbin 150030, P.R. China.
Liu Di*
Affiliation:
Heilongjiang Academy of Agricultural Science; 368 Xue Fu Road, Harbin City 150086, China. College of Life Science, Northeast Agriculture University, Harbin 150030, P.R. China.
Fang Qing-chang
Affiliation:
College of Life Science, Northeast Agriculture University, Harbin 150030, P.R. China.
Ren Liang
Affiliation:
College of Life Science, Northeast Agriculture University, Harbin 150030, P.R. China.
Ma Hong
Affiliation:
Institute of Animal Science, Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China.
Wang Liang
Affiliation:
Institute of Animal Science, Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China.
Guo Zhen-hua
Affiliation:
Institute of Animal Science, Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China.
Li Zhong-qiu
Affiliation:
Institute of Animal Science, Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China.
*
All correspondence to: Liu Di. Heilongjiang Academy of Agricultural Science; 368 Xue Fu Road, Harbin City 150086, China. Tel: +86 13845120192. e-mail: liudi1963@163.com
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Summary

Transgenes integrated into mammalian cells are silenced rapidly. This phenomenon correlates with repressed chromatin structure marked by histone hypoacetylation. This study investigated the effect of trichostatin A (TSA; a histone-deacetylase inhibitor) on EGFP expression in transfected cells and embryonic development after somatic cell nuclear transfer (SCNT). Porcine adult fibroblasts were transfected with a pEGFP-C1 vector. Then transfected cells, donor cells for SCNT, were pretreated with TSA, with the untreated cells being used as the control. Expression of EGFP in donor cells and reconstructed embryos was detected when exposed to blue light. Results showed that the percentage of EGFP-positive cells significantly increased when the transfected cells were treated with TSA and the increased expression of EGFP was sustained to at least the morula stage. In addition, the cytotoxic effect of TSA on the transfected cells was dose dependent. In conclusion, TSA can rescue the silenced EGFP gene. Even after transferring the TSA-treated cells to enucleated recipient oocytes, TSA retained the ability to rescue a silenced EGFP gene. In addition, TSA had an impact on cell proliferation.

Keywords

EGFPHistone deacetylationPorcineSomatic cell nuclear transferTrichostatin A
Type
Research Article
Information
Zygote , Volume 19 , Issue 3 , August 2011 , pp. 237 - 243
Copyright
Copyright © Cambridge University Press 2010

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