光生物调节疗法通过激活PI3K/AKT/FoxO3a通路来缓解与癌症缓解相关的肌肉损耗
Yonghua Li1, Yibing Chen2, Yuan Liao3
1MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, China.
概括
光生物调节疗法 (PBMT) 通过抑制关键的肌肉降解蛋白质,有效地打击与癌症相关的肌肉损耗. 这种方法激活PI3K/AKT通路,为癌症患者的肌肉缩提供了有前途的治疗方法.
科学领域:
- 在瘤学瘤学.
- 肌肉生理学 肌肉生理学
- 生物医学工程 生物医学工程
背景情况:
- 癌症缓解症是一种复杂的消耗综合征,显著影响癌症患者的生存率.
- 光生物调节疗法 (PBMT) 显示出治疗疾病的潜力,但其在癌症引起的肌肉缩中的作用尚不清楚.
研究的目的:
- 研究PBMT在预防和治疗与癌症相关的肌肉衰竭方面的疗效.
- 阐明PBMT对肌肉缩的影响背后的分子机制.
主要方法:
- 在实验室中使用癌细胞和髓管进行研究.
- 使用瘤携带小鼠模型的体内研究.
- RNA测序 (RNA-seq) 和基因组丰富分析 (GSEA).
- 对PI3K/AKT通路的药理抑制.
主要成果:
- 在实验室中,PBMT缓解了癌细胞诱导的肌管缩,并预防了瘤携带小鼠的肌肉衰竭.
- PBMT 抑制了 E3 泛素酶 MAFbx 和 MuRF-1 的表达.
- 转录基因分析表明PI3K/AKT通路与PBMT的保护作用有关.
- 由PBMT诱导的AKT激活导致了FoxO3a酸化,阻止了其核转移.
- 通过PI3K/AKT通路,PBMT通过cisplatin诱导的缓解模式改善了肌肉缩.
结论:
- PBMT有效地减轻与癌症进展相关的肌肉缩.
- PI3K/AKT通路是PBMT肌肉保护作用的关键调解者.
- PBMT代表了一种有前途的治疗策略,用于管理癌症缓解症诱导的肌肉消耗.
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