Hydrogen sulfide (HS) is a common toxic gas in chicken houses that endangers the health of poultry. Harbin has a cold climate in winter, and the conflict between heat preservation and ventilation in poultry houses is obvious. In this study, we investigated the HS content in chicken houses during winter in Harbin and found that the HS concentration exceeded the national standard in individual chicken houses. Then, a model of HS exposure was established in an environmental simulation chamber. We also developed a NaHS exposure model of chicken peripheral blood lymphocytes in vitro. Proteomics analysis was used to reveal the toxicology of thymus injury in broilers, the FOXO signaling pathway was determined to be significantly enriched, ROS bursts and JNK/MST1/FOXO1 pathway activation induced by HS exposure were detected, and ROS played an important switch role in the JNK/MST1/FOXO1 pathway. In addition, HS exposure-induced thymus cell death involved immune dysregulation. Overall, the present study adds data for HS contents in chicken houses, provides new findings for the mechanism of HS poisoning and reveals a new regulatory pathway in immune injury.
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| http://dx.doi.org/10.1016/j.ecoenv.2021.112488 | DOI Listing |
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