抑制SHP2通过恢复AMPK酸化和线粒体平衡改善了心室重塑
Qiao-Juan Shi1,2, Wei-Qi Li1, Ya-Nan Liu1
1Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, No. 182 Tianmushan Road, Zhejiang, 310007, Hangzhou, China.
Cell communication and signaling : CCS
|January 8, 2026
概括
含有Src同质性2域的蛋白质氨酸酸酶2 (SHP2) 解化AMPK,导致线粒体功能障碍和恶化心室重塑. 抑制SHP2可能治疗心力衰竭.
科学领域:
- 心脏病学 心脏病学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 线粒体功能障碍是心室重塑的关键,但机制尚不清楚.
- 这项研究探讨了Src同质性2域含有蛋白质氨酸酸酶2 (SHP2) 在AMPK介导的线粒体功能障碍和心室重塑中的作用.
研究的目的:
- 研究SHP2在AMPK介导的线粒体功能障碍中的调节作用.
- 为了阐明SHP2对心室重塑的影响.
主要方法:
- 在体外和体内,由Ang II/ISO诱导的心室重塑.
- 评估了SHP2抑制 (SHP099) 和淘汰 (siSHP2) 的影响.
- 通过LC-MS/MS和Co-IP证实AMPK和SHP2之间的相互作用.
- 用于验证的SHP2过度表达和AMPK激活 (A769662).
主要成果:
- 在改造模型中,SHP2表达增加.
- 抑制/击败SHP2可以改善心脏功能和线粒体健康.
- 过度表达SHP2恶化了重塑;AMPK激活挽救了这一点.
- 通过其PTP域,SHP2通过Thr172直接去化AMPK.
结论:
- SHP2去酸化AMPK,导致线粒体功能障碍和心室重塑.
- SHP2是心力衰竭的潜在治疗点.
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