一个洞察到致癌活性和Bis(2-乙烯基) 甲酸盐的分子机制
Gelsomina Pillo1,2, Federico Aldrovandi3,4, Ada Mescoli2
1Agency for Prevention, Environment and Energy (Arpae), Bologna, Italy.
Frontiers in toxicology
|August 7, 2024
概括
在标准测定中,二甲基甲酸盐 (DEHP) 并没有引起细胞转化. 然而,转录组分析显示,DEHP改变了参与新陈代谢和细胞调节的关键信号通路,表明了复杂的作用机制.
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:
- 甲基甲酸盐 (DEHP) 是一种广泛存在的环境污染物,最新的人类健康风险评估侧重于生殖毒性和致癌性.
- 动物研究表明,DEHP通过非遗传毒性途径诱导癌症,包括PPARα激活和氧化应激,但人类的相关性尚不清楚.
研究的目的:
- 通过使用BALB/c-3T3细胞的标准体外细胞转化试验来评估DEHP的致癌潜力.
- 通过转录基因分析调查分子反应并确定受影响的毒理途径.
主要方法:
- 使用A31-1-1 BALB/c-3T3细胞系进行标准细胞转化试验.
- 转录组分析以探索分子反应和受影响的途径.
主要成果:
- 在BALB/c-3T3细胞系中,DEHP治疗没有诱导细胞转化.
- 转录组分析显示了与DEHP代谢,全身代谢和细胞信号传递相关的途径的显著调节,包括Notch,Wnt和TGF-β.
- 鉴定了代谢和神经生理路径之间的交叉声,这可能对DEHP的作用机制至关重要.
结论:
- 实验室细胞转化试验表明,DEHP可能不会通过这种机制直接致癌.
- 转录组数据表明,DEHP显著影响细胞信号和代谢途径,提供了对其复杂毒性的洞察.
- 这些发现支持了体外模型对毒性评估的有用性,减少了动物试验.
关键词:
其他方法 替代方法乙二甲二甲二甲二甲二甲二甲二甲二甲二甲二甲二甲细胞转化试验试验细胞毒性 细胞毒性非遗传毒性的致癌物.毒性基因组学 毒性基因组学翻译学 翻译学 翻译学 翻译学转换学就是转换学.更多相关视频
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