骨肌肉对急性有氧运动的转录性反应与慢性病中联合炼的反应

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Luke A Baker^1,2, Matthew Graham-Brown³, Thomas J Wilkinson^2,4

¹Division of Respiratory Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom.

PloS one

|February 25, 2026

概括

慢性脏病 (CKD) 骨肌显示炎症基因对运动的反应. 运动后24小时,线粒体通路出乎意料地降低了调节,这表明了潜在的适应障碍.

科学领域:

运动生理学运动生理学
骨肌肉生物学骨肌肉生物学
分子生物学分子生物学

背景情况:

慢性病 (CKD) 影响英国14%的人口,导致由于骨肌肉功能障碍而导致运动不耐受.
在CKD患者中,骨肌肉对炼的分子反应尚不清楚.
了解这些反应对于开发有效的运动疗法至关重要.

研究的目的:

在非透析的CKD患者中,在有氧运动 (AE) 或有氧和抵抗运动 (CE) 联合后24小时内,对骨肌肉的转录变化进行表征.
为了在运动后识别差异表达基因 (DEGs) 和丰富的途径.
调查潜在的分子障碍,以在CKD中进行适应.

主要方法:

使用了参与ExTRA CKD试验的非透析CKD患者 (阶段3b-4) 的骨肌肉活检.
在基线和AE或CE的第一个发作后24小时内收集的活检.
进行大量RNA测序以识别DEG并进行途径丰富分析.

主要成果:

有氧运动 (AE) 导致1480个上调和1554个下调的基因. 综合运动 (CE) 产生了556个上调和115个下调的基因.
在AE后的关键上调基因包括CHI3L1,SAA2和PTX3,与炎症相关. 后CE,SFN和MT1A受到高度升级监管.
丰富分析显示,炎症和细胞衰老途径的强烈激活,与线粒体功能相关途径的降低调节,特别是在AE后.

结论:

AE和CE都在CKD骨肌中诱导了强大的炎症基因表达,这可能表明早期修复.
与线粒体相关的通路在运动后24小时意外下调.
这些发现表明线粒体功能障碍可能会阻碍运动适应,并代表CKD的治疗点.

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