Heat enhances the inhibitory effect of lipopolysaccharide on duck granulosa cell proliferation and steroid biosynthesis in vitro
文献类型: 外文期刊
第一作者: Luo, Pei
作者: Luo, Pei;Huang, Xue-bing;Zhan, Xiao-zhi;Yang, Chen;Deng, Zhi-chao;Zhang, Chen;Fu, Xin-liang;Tian, Yun-bo;Huang, Yun-mao;Liu, Wen-jun;Luo, Pei;Huang, Xue-bing;Zhan, Xiao-zhi;Yang, Chen;Deng, Zhi-chao;Zhang, Chen;Fu, Xin-liang;Tian, Yun-bo;Huang, Yun-mao;Liu, Wen-jun;Huang, Xue-bing;Huang, Xue-bing;Huang, Yun-mao;Liu, Wen-jun
作者机构:
关键词: granulosa cells; heat treatment; lipopolysaccharide; proliferation; secretion
期刊名称:ANIMAL SCIENCE JOURNAL ( 影响因子:2.0; 五年影响因子:2.1 )
ISSN: 1344-3941
年卷期: 2023 年 94 卷 1 期
页码:
收录情况: SCI
摘要: Lipopolysaccharide (LPS) reduces the reproductive performance of laying ducks, especially during the hot summer months. To study the underlying mechanisms, we investigated the effects of different LPS concentrations and heat on duck granulosa cell (GC) proliferation and steroid biosynthesis in vitro. We investigated GC proliferation, secretion, and activation of the MAPK pathway. The cell cycle results showed that LPS treatment alone did not significantly affect cell proliferation, whereas the mRNA expression levels of IGF2, IGFBP2, and CyclinD1 were downregulated and p27kip1 was significantly upregulated after 2000 ng/mL LPS treatment when compared to untreated cells. In steroid hormone synthesis, although LPS increased the expression of most steroid biosynthesis genes, it inhibited the expression of CYP11A1 at high LPS concentrations. High temperatures enhanced the inhibitory effect of LPS on the expression of proliferation-promoting genes. Heat significantly reduced CYP11A1 and CYP19A1 expression. In addition, the phosphorylation of P38 was significantly upregulated by high temperatures combined with LPS, whereas the phosphorylation of ERK1/2 and JNK was downregulated. The relative protein expression of Bax/BCL-2 was upregulated at high temperatures in combination with LPS. Heat treatment enhanced the inhibitory effects of LPS on the proliferation and hormone biosynthesis of duck GCs in vitro.
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