Heat Tolerance-Associated circRNA3685 Regulates Apoptosis and Autophagy in Bovine Mammary Epithelial Cells via Sponging bta-miR-138

IF 5.7 1区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY
Congcong Zhang, Lirong Hu, Shuhui Wang, Gong Chen, Luiz F. Brito, Bin Li, Qing Xu, Yachun Wang
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Abstract

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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来源期刊
Journal of Agricultural and Food Chemistry
Journal of Agricultural and Food Chemistry 农林科学-农业综合
CiteScore
9.90
自引率
8.20%
发文量
1375
审稿时长
2.3 months
期刊介绍: The Journal of Agricultural and Food Chemistry publishes high-quality, cutting edge original research representing complete studies and research advances dealing with the chemistry and biochemistry of agriculture and food. The Journal also encourages papers with chemistry and/or biochemistry as a major component combined with biological/sensory/nutritional/toxicological evaluation related to agriculture and/or food.
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