Fibro‐Adipogenic Progenitor Ablation Triggers Muscle Atrophy Through Cell Death‐Induced Inflammation

Abstract

Skeletal muscle mass maintenance involves coordination of myofibers with mononuclear cell populations, including satellite cells, resident macrophages and fibro‐adipogenic progenitors (FAPs). FAPs, identified by surface expression of PDGFRα, are important contributors to muscle homeostasis, as genetic ablation of FAPs induces rapid muscle atrophy. However, mechanisms underlying this response remain poorly understood.