SQSTM1/p62 interacts with FKBP38 and regulates cell cycle in Cashmere goat foetal fibroblasts
文献类型: 外文期刊
第一作者: He, Qiburi
作者: He, Qiburi;Wang, Yanfeng;Zhao, Keyu;Binderiya, Uyanga;Bao, Lili;Zhao, Pingping;Yan, Dandan;Hao, Huifang;Guo, Xudong;Wang, Zhigang;He, Qiburi;Bao, Lili
作者机构:
关键词: Cell cycle; SQSTM1; p62; FKBP38; goat foetal fibroblasts
期刊名称:JOURNAL OF APPLIED ANIMAL RESEARCH ( 影响因子:1.63; 五年影响因子:1.727 )
ISSN: 0971-2119
年卷期: 2018 年 46 卷 1 期
页码:
收录情况: SCI
摘要: SQSTM1 (sequestosome 1, also known as p62) is a multifunctional scaffold protein implicated in diverse cell physiology processes, such as autophagy, cell signalling, and protein turnover. FKBP38 (FK506-binding protein 38) is a member of FKBPs family and plays a key role in various cellular processes, including signalling transduction, embryonic development and apoptosis. In order to explore the role of SQSTM1/p62 gene in cell-cycle progression and proliferation of goat foetal fibroblast (GFbs), SQSTM1/p62 gene was cloned and characterized. Furthermore, the yeast two-hybrid screening system was used to identify the interaction between SQSTM1/p62 and FKBP38. The results suggested that SQSTM1/p62 directly interacts with FKBP38. Overexpression vector pIRES-EGFP-SQSTM1/p62 and shRNA eukaryotic expression vector pRNAT-U6.1-shSQSTM1/p62 which harboured siRNA targeting the SQSTM1/p62 mRNA were constructed. The overexpression of SQSTM1/p62 gene in GFbs significantly increase the S-phase cells compared with control cells (p<.05). Furthermore, SQSTM1/p62 gene silencing in GFbs leads to a significant decrease of S-phase cells and cell cycle arrest compared with control cells (p<.05). These data indicate that SQSTM1/p62 gene plays an important role in cell-cycle and proliferation of Cashmere GFbs.Abbreviations: Aba: aureobasidin A; EIF1: eukaryotic translation initiation factor 1; FKBP: FK506-binding protein; FKBP38: FK506-binding protein 38; GFbs: goat foetal fibroblast; mTOR: mammalian target of rapamycin; PDLIM7: PDZ and LIM domain 7; SD: standard dropout; SQSTM1/p62: sequestosome 1
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