Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (4): 1779-1790.doi: 10.11843/j.issn.0366-6964.2025.04.026

• Animal Biotechnology and Reproduction • Previous Articles     Next Articles

Acute Heat Stress Affects the Functions of Porcine Sertoli Cells via Decreasing Taurine Level

WANG Xinxin(), LIU Xiaoying(), WANG Yi, WANG Fang, ZHAO Han, DU Zhiqiang, YANG Caixia*()   

  1. College of Animal Science and Technology, Yangtze University, Jingzhou 434025, China
  • Received:2024-06-14 Online:2025-04-23 Published:2025-04-28
  • Contact: YANG Caixia E-mail:wxx_wang_xinxin@163.com;1552524897@qq.com;caixiayang@yangtzeu.edu.cn

Abstract:

To investigate the metabolic response to acute heat stress of porcine sertoli cells, porcine sertoli cells were collected under 3 conditions: before acute heat stress (control group), immediately after acute heat stress (43℃, 0.5 h; HS0.5 group), and after a 36 hour recovery post-acute heat stress (HS0.5-R36 group), with 3 biological replicates per group. Metabolic profiling was detected using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Differential metabolites were validated via ELISA. The effects of key differential metabolite on cell viability, proliferation, and apoptosis were assessed using CCK-8, EdU, and Annexin V FITC/PI kits. Level of reactive oxygen species (ROS), mitochondrion distribution, and mitochondrion membrane potential were evaluated using ROS, RH123 and Mito Tracker staining. The results showed that 33, 57 and 115 significant differential secondary metabolites (P < 0.05; VIP>1.00) were identified respectively in HS0.5 vs. Control, HS0.5-R36 vs. HS0.5 and HS0.5-R36 vs. Control comparisons. The pathway analysis showed that significant differential metabolites were mainly enriched in taurine and hypotaurine metabolism and other pathways. ELISA verified that acute heat stress significantly decreased levels of taurine and gamma-aminobutyric acid, which were consistent to metabolomic results. Taurine level was significantly decreased around 5.7 μmol·L-1 in HS0.5-R36 group as compared to control group. Treatment of porcine sertoli cells using taurine of 5.7 μmol·L-1 for 48 h significantly increased cell viability, promoted proliferation, suppressed apoptosis and enhanced mitochondrial function (P < 0.05). These results suggest that acute heat stress could significantly alter metabolism, and the differential metabolite taurine partially mediate the damage exerted by acute heat stress on porcine sertoli cells. These results provide new insights for rescuing damage caused by acute heat stress on porcine sertoli cells.

Key words: porcine, sertoli cell, acute heat stress, metabolomics, taurine

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