Construction of a mammalian cell expression vector pAcGFP-FasL and its expression in bovine follicular granulosa cells
文献类型: 外文期刊
作者: Yang, RunJun 2 ; Huang, Meng 1 ; Li, JunYa 1 ; Zhao, ZhiHui 2 ; Xu, ShangZhong 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China
2.Jilin Univ, Coll Anim Sci & Vet Med, Changchun 130062, Peoples R China; Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
关键词: Fas ligand;apoptosis;follicular granulosa cell
期刊名称:AFRICAN JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.573; 五年影响因子:0.794 )
ISSN: 1684-5315
年卷期: 2011 年 10 卷 59 期
页码:
收录情况: SCI
摘要: Fas ligand (FasL) is a cytokine that may be secreted or expressed as a transmembrane ligand at the cell surface, and induces apoptosis by binding to the Fas. Ovarian follicular atresia and luteolysis are thought to occur by apoptosis. To reveal the intracellular signal transduction molecules involved in the process of follicular development in the bovine ovary, the Fas ligand gene was cloned using RT-PCR. By deleting the stop codon, the amplified Fas ligand gene was directionally cloned in frame into the eukaryotic expression vector pAcGFP-N1. The pAcGFP-bFasL recombinant plasmid was then transfected into bovine follicular granulosa cells by using lipofectamine 2000. Expression of AcGFP was observed under fluorescent microscopy and the transcription and expression of Fas ligand was detected by RT-PCR and Western-blot. The results show that the pAcGFP-bFasL recombinant plasmid was successfully constructed. AcGFP expression was detected as early as 24 h after transfection and the percentage of AcGFP positive cells reached about 68%. As expected, a 847 bp fragment was amplified by RT-PCR and a 59 kD target protein was detected by Western-blot from the transfected cells. This study will thus serve as a valuable tool in understanding the mechanism of regulation of Fas ligand on bovine oocyte formation and development.
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