里克托/mTORC2信号通路介导子[a]烯诱导的损伤
Jian-Qiu Han1, Ying Qu1, Yuan-Rong Zhu1
1Shanghai Institute of Technology, Shanghai, 201418, China.
Scientific reports
|December 24, 2025
概括
甲 (B[a]P) 通过氧化应激和炎症引起损伤. 准Rictor/mTORC2通路可能为B[a]P诱导的毒性提供治疗策略.
科学领域:
- 毒理学 毒理学 毒理学
- 环境健康 环境健康
- 分子生物学分子生物学
背景情况:
- 甲 (B[a]P) 是一种持久性有机污染物,以其毒作用而闻名.
- 短期,高剂量的B[a]P暴露对脏的毒理学特征尚未完全理解.
研究的目的:
- 在小鼠中研究一次高剂量B[a]P诱导的依赖时间的损伤.
- 阐明Rictor/mTORC2通路在B[a]P诱导的毒性中的作用.
主要方法:
- 一个C57BL/6J小鼠模型被使用,一次口服剂量为50 mg/kg B[a]P.P.
- 生物化学标志物 (Scr,BUN,MDA,SOD,CAT,T-AOC,NOS,LDH) 和分子指标 (TNF-α,IL-6,caspase-3,Rictor,AKT1,PKC-ζ) 进行了评估.
- 在机理学研究中使用了对巨细胞特异性的Rictor淘汰赛小鼠 (Mac Rictor-/-).
主要成果:
- 在3天内,B[a]P暴露导致血清肌素和BUN显著增加,氧化应激标志物 (MDA) 升高,抗氧化能力降低 (SOD,CAT,T-AOC).
- 从第7至14天观察到脏炎症和亡,由上调的TNF-α,IL-6和caspase-3表示.
- B[a]P提高了Rictor/mTORC2路径组件及其效应器 (AKT1,PKC-ζ) 的调节.
- 在Mac Rictor-/-小鼠中抑制Rictor/mTORC2改善了B[a]P诱导的氧化应激,炎症和亡.
结论:
- 里克托/mTORC2通路在调解B[a]P诱导的损伤方面发挥着至关重要的作用.
- 准Rictor/mTORC2通路为B[a]P毒性提供了一个潜在的治疗策略.
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