由T-2毒素诱导的丸损伤通过触发氧化应激和铁灭菌
Jun He1, Hong Jin1, Jiabin Guo1
1Chinese PLA Center for Disease Control and Prevention, Beijing, China.
Ecotoxicology and environmental safety
|December 22, 2023
概括
毒素T-2通过氧化应激和细胞死亡途径铁亡引起生殖损害. 抑制ferroptosis或使用抗氧化剂可以防止T-2毒素引起的丸损伤.
科学领域:
- 毒理学 毒理学 毒理学
- 生殖生物学 生殖生物学
- 细胞死亡机制 细胞死亡机制
背景情况:
- T-2毒素是一种三菌毒素,对人类和动物构成风险.
- 生殖毒性与氧化应激和细胞死亡有关.
- 铁亡是一种特定类型的被编程细胞死亡,其特征是脂质过氧化.
研究的目的:
- 为了研究T-2毒素对小鼠丸的有毒作用.
- 阐明丸细胞中T-2毒素诱导的铁亡的机制.
主要方法:
- 对暴露于T-2毒素的小鼠丸进行了形态和生化分析.
- 对氧化应激标志物 (ROS,MDA,SOD,GPx) 的评估.
- 评价铁灭菌标记 (铁积累,PTGS2,GPX4,FTH1) 和铁灭菌形态.
- 用铁灭酶抑制剂 (利普洛克斯塔丁-1) 和抗氧化剂 (复星) 治疗.
主要成果:
- T-2毒素诱导丸形态变化,降低了丸激素和精子数量,并增加了精子形.
- 氧化损伤明显,ROS/MDA增加和抗氧化酶活性降低.
- T-2毒素通过改变铁稳态,上调PTGS2,降低GPX4和FTH1的调节,并引起ferroptotic形态变化触发了ferroptosis.
- 利普洛克斯塔丁-1和白醇的使用改善了T-2毒素诱导的铁亡和丸损伤.
结论:
- T-2毒素通过铁和氧化应激诱导丸损伤.
- 铁灭抑制和抗氧化剂治疗显示出对T-2毒素毒性的治疗潜力.
- 这项研究提供了T-2毒素细胞死亡机制和潜在干预措施的见解.
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