NOX4通过PGC1α/Drp1轴协调线粒体循环,减轻乳腺癌细胞的攻击性
Deepali Bhadane1, Dinisha Kamble1, Mangesh Deval1
1Redox Biology Laboratory, National Centre for Cell Science (NCCS), Pune 411007, India.
Cellular signalling
|December 13, 2023
概括
NADPH氧化酶4 (NOX4) 影响乳腺癌的攻击性. 在三阴性乳腺癌 (TNBC) 细胞中较低的NOX4与较高的ROS和转移相关,表明NOX4是治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 三重阴性乳腺癌 (TNBC) 在有限的治疗方法下具有侵略性.
- NADPH氧化酶4 (NOX4) 是一个关键的线粒体ROS生产者.
- 了解NOX4在乳腺癌亚型中的作用至关重要.
研究的目的:
- 为了研究NOX4在光线和TNBC攻击性中的分子机制.
- 确定NOX4对活性氧物种 (ROS) 和细胞迁移的影响.
- 探索NOX4对线粒体动态的影响.
主要方法:
- 在光线和TNBC细胞中对NOX4的差异表达分析.
- NOX4沉默和过度表达的实验.
- 测量ROS水平,细胞迁移/入侵测定,以及体内转移模型 (老鼠尾脉注射).
- 分析线粒体生物发生 (PGC1α) 和裂变 (Drp1) 途径.
- 使用Mdivi1.1,抑制Drp1介导的裂变.
主要成果:
- NOX4表达与TNBC的攻击性相反相关.
- 在光细胞中的NOX4沉默增加了ROS,迁移,入侵和肺转移.
- 在TNBC细胞中NOX4过度表达具有相反的效果.
- NOX4 影响线粒体生物发生和裂变,影响线粒体质量和形态.
- 抑制Drp1可以逆转NOX4介导对线粒体动力学和细胞迁移的影响.
结论:
- NOX4表达从光线下降到TNBC,与ROS升高和侵略性表型相关.
- NOX4调节线粒体的循环,有助于癌症的攻击性.
- 向NOX4为TNBC提供了一个潜在的治疗策略.
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