对双A的短期暴露不会影响阴道细胞在体外的类固醇生成
Neena Roy1, Clara Lazzaretti1, Elia Paradiso1
1Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41126 Modena, Italy.
Cells
|June 10, 2023
概括
短期接触双A (BPA) 不会影响人类颗粒素和小鼠莱迪格细胞的生殖细胞信号或类固醇激素产生. 这项研究调查了BPA.
科学领域:
- 内分泌学 在内分泌学.
- 生殖生物学 生殖生物学
- 环境健康 环境健康
背景情况:
- 双A (BPA) 是一种广泛使用的合成化学物质,与生殖障碍有关.
- 以前的研究集中在长期BPA暴露对类固醇生成的影响上.
- 短期BPA暴露对生殖功能的影响仍未得到充分研究.
研究的目的:
- 为了研究短期暴露于Bisphenol A (BPA) 对白化激素/胆激素 (LH/hCG) 介导的信号传递的影响.
- 评估BPA对小鼠莱迪格 (mLTC1) 和人类粒粉黄蛋白细胞 (hGLC) 的类固醇生成的影响.
主要方法:
- 利用同质的时间解析光 (HTRF) 测定和西方抹杀用于细胞信号分析.
- 进行实时PCR,用于对类固醇酶的基因表达分析.
- 通过免疫染和免疫测试评估细胞内蛋白质表达和类固醇激素的产生.
主要成果:
- 短期BPA暴露 (8-24小时) 并没有改变LH/hCG诱导的cAMP积累或下游信号 (ERK1/2,CREB,p38 MAPK).
- BPA没有影响关键的类固醇基因 (STARD1,CYP11A1,CYP19A1,Stard1,Cyp17a1) 或Star蛋白的表达.
- 在用LH/hCG刺激的BPA暴露细胞中,类固醇激素水平 (孕,雌激素,) 保持不变.
结论:
- 短期暴露于 Bisphenol A (BPA) 的环境度不会损害人类颗粒素或小鼠莱迪格细胞的类固醇生成能力.
- 这些发现表明,在测试度下对BPA的急性暴露不会影响LH/hCG介导的生殖信号通路.
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