Hemojuvelin is a novel suppressor for Duchenne muscular dystrophy and age‐related muscle wasting

Muscle wasting occurs in response to various physiological and pathological conditions, including ageing and Duchenne muscular dystrophy (DMD). Transforming growth factor‐β1 (TGF‐β1) contributes to muscle pathogenesis in elderly people and DMD patients; inhibition of TGF‐β1 signalling is a promising therapeutic strategy for muscle‐wasting disorders. Hemojuvelin (HJV or Hjv as the murine homologue) is a membrane‐bound protein that is highly expressed in skeletal muscle, heart, and liver. In hepatic cells, Hjv acts as a coreceptor for bone morphogenetic protein, a TGF‐β subfamily member. The aim of this study was to investigate whether Hjv plays an essential role in muscle physiological and pathophysiological processes by acting as a coreceptor for TGF‐β1 signalling.

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