학술논문

Impaired regenerative capacity contributes to skeletal muscle dysfunction in chronic obstructive pulmonary disease.
Document Type
Article
Source
American Journal of Physiology: Cell Physiology. Oct2022, Vol. 323 Issue 4, pC974-C989. 16p.
Subject
*CHRONIC obstructive pulmonary disease
*MUSCLE regeneration
*MUSCLE mass
*PULMONARY emphysema
*METABOLIC regulation
Language
ISSN
0363-6143
Abstract
Locomotor skeletal muscle dysfunction is a relevant comorbidity of chronic obstructive pulmonary disease (COPD) and is strongly associated with worse clinical outcomes including higher mortality. Over the last decades, a large body of literature helped characterize the process, defining the disruptive muscle phenotype caused by COPD that involves reduction in muscle mass, forcegeneration capacity, fatigue-tolerance, and regenerative potential following injury. A major limitation in the field has been the scarcity of well-calibrated animal models to conduct mechanistic research based on loss- and gain-of-function studies. This article provides an overall description of the process, the tools available to mechanistically investigate it, and the potential role of mitochondrially driven metabolic signals on the regulation muscle regeneration after injury in COPD. Finally, a description of future avenues to further expand on the area is proposed based on very recent evidence involving mitochondrial metabolic cues affecting myogenesis. [ABSTRACT FROM AUTHOR]