Hypoxia and hypoxia-inducible factor signaling in muscular dystrophies: cause and consequences

TH Nguyen, S Conotte, A Belayew… - International journal of …, 2021 - mdpi.com
TH Nguyen, S Conotte, A Belayew, AE Declèves, A Legrand, A Tassin
International journal of molecular sciences, 2021mdpi.com
Muscular dystrophies (MDs) are a group of inherited degenerative muscle disorders
characterized by a progressive skeletal muscle wasting. Respiratory impairments and
subsequent hypoxemia are encountered in a significant subgroup of patients in almost all
MD forms. In response to hypoxic stress, compensatory mechanisms are activated
especially through Hypoxia-Inducible Factor 1 α (HIF-1α). In healthy muscle, hypoxia and
HIF-1α activation are known to affect oxidative stress balance and metabolism. Recent …
Muscular dystrophies (MDs) are a group of inherited degenerative muscle disorders characterized by a progressive skeletal muscle wasting. Respiratory impairments and subsequent hypoxemia are encountered in a significant subgroup of patients in almost all MD forms. In response to hypoxic stress, compensatory mechanisms are activated especially through Hypoxia-Inducible Factor 1 α (HIF-1α). In healthy muscle, hypoxia and HIF-1α activation are known to affect oxidative stress balance and metabolism. Recent evidence has also highlighted HIF-1α as a regulator of myogenesis and satellite cell function. However, the impact of HIF-1α pathway modifications in MDs remains to be investigated. Multifactorial pathological mechanisms could lead to HIF-1α activation in patient skeletal muscles. In addition to the genetic defect per se, respiratory failure or blood vessel alterations could modify hypoxia response pathways. Here, we will discuss the current knowledge about the hypoxia response pathway alterations in MDs and address whether such changes could influence MD pathophysiology.
MDPI
以上显示的是最相近的搜索结果。 查看全部搜索结果