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Pyruvate Regulates the Expression of DLAT to Promote Follicular Growth

文献类型: 外文期刊

作者: Zhang, Liuhong 1 ; Guo, Yixuan 1 ; Huang, Enyuan 1 ; Lu, Jianing 1 ; Wang, Tiantian 1 ; Shi, Yonghua 1 ; Lv, Meng 1 ; Chen, Yongcai 1 ; Li, Shuo 1 ; Yuan, Xiaolong 1 ; Li, Jiaqi 1 ;

作者机构: 1.South China Agr Univ, Natl Engn Res Ctr Breeding Swine Ind,Coll Anim Sci, State Key Lab Swine & Poultry Breeding Ind, Guangdong Prov Key Lab Agroanim Genom & Mol Breedi, Guangzhou 510642, Peoples R China

2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch,Genome Anal Lab, Guangdong Lab Lingnan Modern Agr,Minist Agr, Shenzhen 518120, Peoples R China

3.Shanxi Agr Univ, Coll Anim Sci, Jinzhong 030801, Peoples R China

4.Murdoch Univ, Hlth Futures Inst, Ctr Hlth Ageing, Murdoch, WA 6150, Australia

关键词: follicular growth; granulosa cells; pyruvate; DLAT

期刊名称:CELLS ( 影响因子:5.2; 五年影响因子:6.1 )

ISSN:

年卷期: 2025 年 14 卷 6 期

页码:

收录情况: SCI

摘要: Increasing evidence has suggested that dihydrolipoamide S-acetyltransferase (DLAT), a subunit of the pyruvate dehydrogenase complex, is crucial for pyruvate metabolism and the regulation of cell death. The excessive death of granulosa cells (GCs) hinders the progression of follicular growth. However, the relationship between DLAT and follicular growth is poorly understood. Here, we found that pyruvate significantly shortened the age of pubertal initiation in mice and promoted follicular growth by promoting the proliferation of GCs. In addition, pyruvate up-regulated the expression of DLAT and the high level of DLAT was observed in large follicles, which were associated with follicular growth. Mechanistically, DLAT increased the mRNA and protein levels of proliferation pathways such as PCNA and MCL1 to promote GC proliferation. Additionally, DLAT bound to CASP3 and CASP9 proteins to inhibit the apoptosis of GCs. Taken together, these results reveal a mechanism that pyruvate regulated DLAT to promote follicular growth, and DLAT represents a promising target that supports new strategies for improving the growth of follicles.

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