双-A 破坏了线粒体的功能,导致人类胚胎介质细胞 stromal 细胞的衰老和亡
Sara Ficai1, Andrea Papait1,2, Marta Magatti3
1Department of Life Science and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy.
Cell death discovery
|July 16, 2025
概括
双甲 (BPA) 暴露会通过破坏线粒体和触发衰老通路来损害人类胎盘细胞. 这种微塑料污染物对胎儿发育构成风险,需要对其使用进行重新评估.
科学领域:
- 环境健康 环境健康
- 细胞生物学 细胞生物学
- 毒理学 毒理学 毒理学
背景情况:
- 微塑料污染日益令人担忧,并可能对健康产生影响.
- 微塑料及其副产品,如双-A (BPA),可以进入人体.
- 最近的发现显示人类胎盘中的微塑料,引起了对胎儿发育的担忧.
研究的目的:
- 为了研究双-A (BPA) 对人类羊水膜介质 stromal 细胞 (hAMSC) 的影响.
- 了解BPA对细胞功能的影响以及在人类早期发育过程中的潜在毒性.
主要方法:
- 隔离和培养人类羊水膜介质层层细胞 (hAMSC).
- 对hAMSC暴露于不同度的双甲 (BPA).
- 评估线粒体功能,氧化应激,基因表达 (p53,p21,p27,Bax,Bcl-2) 和与衰老相关的分泌表型 (SASP).
主要成果:
- 在hAMSC中,BPA暴露损害了线粒体功能.
- 观察到线粒体活性氧物种 (mtROS) 生产增加和氧化应激.
- BPA诱导了p53稳定,改变了与亡相关的基因表达,并上调了SASP因子.
结论:
- BPA通过氧化应激和衰老路径对hAMSC功能产生负面影响.
- 这些发现凸显了BPA对胎儿发育的潜在风险.
- 重新考虑使用BPA作为塑料添加剂对于减轻对婴儿的不良影响至关重要.
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