在人类胚胎停产期间,HTR1B通过激活ERK/MAPK信号通路来调节线粒体稳态和线粒体衰减
Si-Min Ding1,2,3,4, Ling-Ge Shi1,2,3,4, Zhen-Ping Cao5
1Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
Heliyon
|July 18, 2024
概括
血清素受体1B (HTR1B) 在胚胎停产 (EA) 中升高,通过激活MAPK通路,促进过度的线粒和损害细胞生长. HTR1B是EA的潜在治疗标.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 血清素及其受体对于哺乳动物的生殖组织和胚胎发育至关重要.
- 在胚胎停产 (EA) 中,血清系统的确切作用和机制仍在研究中.
研究的目的:
- 研究血清素受体1B (HTR1B) 在植入后胚胎停产 (EA) 中的作用.
- 阐明涉及HTR1B介导EA的潜在分子机制,包括线粒体功能和细胞信号通路.
主要方法:
- 从EA患者和健康对照人群中收集了胆管.
- 利用西方抹杀 (WB) 和免疫组织化学 (IHC) 来评估HTR1B水平和线粒体蛋白质.
- 采用细胞培养模型 (HTR-8/SVneo细胞) 与HTR1B过度表达来评估细胞增殖,迁移和髓.
- 分析了基因激活蛋白激酶 (MAPK) 信号通路.
主要成果:
- 在EA患者的胆膜中观察到HTR1B水平升高和过度的线粒.
- 在HTR-8/SVneo细胞中HTR1B过度表达减少了细胞的增殖和迁移,并增加了线粒.
- 在EA和HTR1B过度表达细胞中发现了MAPK信号通路,特别是ERK的激活.
- 线粒体动力学蛋白质 (融合和裂变) 在EA组中发生了改变.
结论:
- HTR1B在植入后EA中发挥着重要作用,通过过度的线粒细胞灭菌来破坏线粒体平衡.
- 激活MAPK信号通路是HTR1B损害胚胎发育的关键机制.
- HTR1B代表了管理胚胎停产的潜在治疗标.
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