线粒体形态动力学和ROS调节Drosophila毛囊细胞的顶极性和分化
Bhavin Uttekar1, Rahul Kumar Verma1, Darshika Tomer1
1Biology, Indian Institute of Science Education and Research, Homi Bhabha Road, Pashan, Pune 411008, India.
Development (Cambridge, England)
|February 12, 2024
概括
线粒体动力学,特别是蛋白Drp1,对于上皮细胞极性和Drosophila oogenesis期间的信号传递至关重要. 破坏线粒体融合 (Opa1) 和活性氧物种 (ROS) 水平可以部分恢复由Drp1耗尽引起的极性缺陷.
科学领域:
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 线粒体形态学动态对于表皮细胞发育中的细胞信号传递至关重要.
- 线粒体分裂蛋白Drp1影响了Drosophila oogenesis中的EGFR和Notch信号传递.
- 连接Drp1,线粒体动力学和上皮质极性之间的机制尚不清楚.
研究的目的:
- 研究Drp1在Drosophila毛囊细胞分化过程中调节上皮质极性中的作用.
- 阐明线粒体形态,活性氧物种 (ROS) 和上皮质极性之间的相互作用.
主要方法:
- 在Drosophila毛囊细胞中,Drp1和Opa1的耗尽.
- 评估上皮细胞形态和极性蛋白 (aPKC) 水平.
- 测量活性氧物种 (ROS) 和分析EGFR和Notch信号通路.
主要成果:
- Drp1 枯竭导致毛囊细胞收缩和多层化,aPKC 减少.
- Opa1 枯竭导致线粒体分裂和ROS增加,抑制 Drp1 枯竭表型.
- 消耗ROS清理器 (SOD2,催化酶) 模仿Opa1消耗效应,并部分挽救Drp1缺陷.
结论:
- 线粒体形态学,ROS产量和上皮质极性在多索菲拉 oogenesis 期间是密切相关的.
- 通过ROS调节建立表皮质极性,drp1介导的线粒体动力学至关重要.
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