Identification of Novel 58-5p and SREBF1 Interaction and Effects on Apoptosis of Ovine Ovarian Granulosa Cell
文献类型： 外文期刊
第一作者： Yang, Ruochen
作者： Yang, Ruochen;Wang, Yong;Yue, Sicong;Liu, Yueqin;Zhang, Yingjie;Duan, Chunhui;Yang, Ruochen;Wang, Yong
作者机构：
关键词： ovine ovarian GCs; PRL; apoptosis; novel 58-5p; SREBF1
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2025 年 26 卷 2 期
页码：
收录情况： SCI
摘要： High concentrations of prolactin (PRL)-induced ovine ovarian granulosa cell (GCs) apoptosis and MAPK12 could aggravate the induced effect. However, the molecular mechanisms that MAPK12-induced GC apoptosis and repressed steroid hormone secretion remain unclear. In this study, GCs in the P group (GCs with high PRL concentration: 500 ng/mL PRL) and P-10 group (GCs with 500 ng/mL PRL infected by lentiviruses carrying overexpressed sequences of MAPK12) were collected for whole-transcriptome analysis. Then, we applied the miRNA mimics combined with a dual-luciferase reporter gene assay to explore the molecular mechanisms through which MAPK12 affected GC apoptosis and steroid hormones secretion. The whole-transcriptome analysis indicated that MAPK12 regulated high PRL concentration GC apoptosis and steroid hormone secretion mainly through novel 58. The expression of pro-apoptotic proteins Caspase 3 and Bax was increased, while the expression of anti-apoptotic protein BCL-2 declined by novel 58-5p in high PRL concentration GCs (p < 0.05); The secretion of steroid hormones and genes associated with steroid secretion (CYP11A1, 3 beta-HSD and CYP19A1) decreased (p < 0.05), while the protein expression of the target gene, SREBF1 of novel 58, was repressed by novel 58-5p in high PRL concentration GCs (p < 0.05). Dual-luciferase reporter gene analysis showed that SREBF1 was confirmed as a target gene of novel 58-5p and the negative feedback interaction was established between novel 58-5p and SREBF1. The ggccggctgggggattgccg sequence may be the target site of SREBF1, targeted by novel 58-5p. In addition, steroid hormone secretion was reduced and GC apoptosis was suppressed after the interference of SREBF1 in ovine ovarian GCs with high PRL concentration. In conclusion, novel 58-5p regulated ovine ovarian GC apoptosis and steroid hormone secretion by targeting SREBF1.
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