Zygote
- Zygote / Volume 19 / Issue 03 / August 2011, pp 237-243
- Copyright © Cambridge University Press 2010
- DOI: http://dx.doi.org/10.1017/S0967199410000201 (About DOI), Published online: 23 June 2010
Research Article
Effect of trichostatin A on transfected donor cells and subsequent development of porcine cloned embryos
Fu Boa2, Liu Dia1a2 c1, Fang Qing-changa2, Ren Lianga2, Ma Honga3, Wang Lianga3, Guo Zhen-huaa3 and Li Zhong-qiua3
a1 Heilongjiang Academy of Agricultural Science; 368 Xue Fu Road, Harbin City 150086, China.
a2 College of Life Science, Northeast Agriculture University, Harbin 150030, P.R. China.
a3 Institute of Animal Science, Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China.
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.
(Received January 07 2010)
(Accepted March 24 2010)
(Online publication June 23 2010)
Correspondence:
c1 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
