鲁克索利提尼布:对呼吸机诱导的隔膜功能障碍的新希望
Alex B Addinsall1, Nicola Cacciani1,2, Noah Moruzzi3
1Basic and Clinical Muscle Biology, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden.
Acta physiologica (Oxford, England)
|March 29, 2024
概括
卢克索利提尼布是一种JAK抑制剂,在呼吸机诱导的隔膜功能障碍 (VIDD) 模型中改善了隔膜功能和存活率. 这种治疗保留了线粒体功能,并逆转了髓蛋白的改变,显示了VIDD的治疗潜力.
科学领域:
- 生物医学研究生物医学研究
- 生理学 生理学 生理学
- 药理学 药理学是指药理学的学科.
背景情况:
- 机械通风 (MV) 可以导致呼吸器诱导的隔膜功能障碍 (VIDD),其特点是隔膜软弱和缩.
- 简氏激酶 (JAK) /信号转换器和转录激活器 (STAT) 途径与VIDD病变有关.
- 在缓解慢性肌肉消耗条件方面,JAK/STAT抑制已经显示出有前途.
研究的目的:
- 研究Ruxolitinib,一个JAK1/2抑制剂,在治疗呼吸机诱导的隔膜功能障碍 (VIDD) 的治疗疗效.
- 探索Ruxolitinib对隔膜肌肉大小,功能,线粒体完整性和MV的老鼠模型中的蛋白质修饰的影响.
主要方法:
- 老鼠接受了控制式机械通风 (CMV) 5天,每天或不给Ruxolitinib.
- 测量了隔膜肌肉的大小和特异力.
- 用RNA测序,线粒体形态学,呼吸学和质谱学来评估分子和细胞的变化.
主要成果:
- CMV显著减少了隔膜大小和力,增加了P-STAT3,并损害了线粒体功能和呼吸.
- 卢克索利提尼布治疗增加了动物的存活率,减弱了P-STAT3上调,并保持了隔膜大小和特异力.
- 鲁克索利提尼布维持了线粒体含量和呼吸功能,并逆转了通过通风诱导的特定髓转化后修饰 (PTMs).
结论:
- 在实验性VIDD模型中,鲁克索利提尼布的使用可保护隔膜功能并提高存活率.
- 功能性益处与维护线粒体健康和逆转呼吸机诱导的肌PTMs有关.
- 这些发现支持Ruxolitinib在VIDD的临床治疗中潜在的重新使用.
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