Heat Tolerance-Associated circRNA3685 Regulates Apoptosis and Autophagy in Bovine Mammary Epithelial Cells via Sponging bta-miR-138
文献类型： 外文期刊
作者： Zhang, Congcong 1 ; Hu, Lirong 2 ; Wang, Shuhui 1 ; Chen, Gong 1 ; Brito, Luiz F. 3 ; Li, Bin 4 ; Xu, Qing 1 ; Wang, Yachun 2 ;
作者机构： 1.Beijing Jiaotong Univ, Coll Life Sci & Bioengn, Beijing 100044, Peoples R China
2.China Agr Univ, Coll Anim Sci & Technol, Beijing Engn Technol Res Ctr Raw Milk Qual & Safet, Key Lab Anim Genet,Natl Engn Lab Anim Breeding,Bre, Beijing 100193, Peoples R China
3.Purdue Univ, Dept Anim Sci, W Lafayette, IN 47907 USA
4.Tibet Acad Agr & Anim Husb Sci, Inst Anim Husb & Vet, Lhasa 850000, Tibet, Peoples R China
关键词： heat stress; heat tolerance; dairy cows; circRNA; miRNA; mammary epithelial cells
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0021-8561
年卷期： 2024 年 73 卷 2 期
页码：
收录情况： SCI
摘要： Heat stress negatively affects dairy cow production, and health, leading to significant losses. Identifying mechanisms associated with heat tolerance is crucial for developing breeding strategies. Circular RNAs (circRNAs), a type of noncoding RNA, regulate cell functions like autophagy, apoptosis and proliferation. In this study, dairy cows were classified into heat stress tolerant (HST, n = 15) and heat stress sensitive (HSS, n = 15) groups based on respiratory and drooling score during the heat stress. A significant difference in milk production decline was observed, with the HST group showing less decline, indicating better heat tolerance. Blood transcriptomics analysis identified 166 differentially expressed circRNAs with circRNA3685 being highlighted as a key candidate linked to heat tolerance. Overexpression of circRNA3685 in bovine mammary (MAC-T) cells inhibited autophagy and apoptosis. The circRNA3685 was found to interact with bta-miR-138, targeting HIF1A. These findings provide insights into circRNAs' role in heat stress adaptation in dairy cows.
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