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HSPC117 Improves the Rate of Embryonic Development by Up-Regulating the Transcription of Proto-Oncogenes

HSPC117 Improves the Rate of Embryonic Development by Up-Regulating the Transcription of Proto-Oncogenes

Hong Ma*, Bo Fu, Liang Wang, Zhong-qiu Li and Di Liu*

 

Heilongjiang Academy of Agriculture Science, Harbin 150086, P.R. China

*      Corresponding author: mahong_ok@163.com; liudi1963@163.com

 

ABSTRACT

The developmental efficiency of cloned embryos from somatic cells remains low, and many factors contribute to overall development of the embryo, including gene expression by the donor cells. The human hematopoietic stem/progenitor cell 117 (HSPC117) protein has been identified as being involved in placental formation, and can be modified by epigenetics. However, whether HSPC117 affects development of cloned embryos mRNA expression is unknown. To investigate the influences of HSPC117 on embryonic development, we generated transgenic porcine embryos by handmade cloning. We then assessed the embryonic developmental rate at cleavage and blastocyst stages. Our results showed that the HSPC117 transgenic embryos had markedly higher cleavage and blastocyst rates when compared to the embryos with pcDNA 3.1 vector, (69.7 ± 3.5% vs. 64.6 ± 1.8%, and 24.8 ± 2.2% vs. 15.9 ± 4.3%, respectively). However, blastocyst cell number was not different between groups. Furthermore, proto-oncogene was reported to play roles in embryo development, thus we assessed c-Fos, c-Jun, Raf-1, and c-Myc mRNA expression in HSPC117 transgenic and pcDNA 3.1 blastocysts. It was revealed that over-expression of HSPC117 mRNA in blastocysts up-regulated c-Fos, c-Jun, Raf-1, and c-Myc mRNA expression. We suggest that over-expressed HSPC117 is an important contributing factor to the development of HMC embryos in vitro viathe regulation of mRNA expression of several proto-oncogenes.
 

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Pakistan Journal of Zoology

October

Vol. 51, Iss. 5, Pages 1599-1997

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