Not young but still immature: a HIF-1α-mediated maturation checkpoint in regenerating muscle.
Not young but still immature: a HIF-1α-mediated maturation checkpoint in regenerating muscle.
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DOI：
10.1172/jci165322
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发表时间：
2022-12-01
影响因子：
15.9
通讯作者：
Kyba, Michael
中科院分区：
文献类型：
--
作者：
Salekeen, Rahagir;Kyba, Michael
Muscle fibers express particular isoforms of contractile proteins, depending on the fiber’s function and the organism’s developmental stage. In the adult, after a muscle injury, newly generated fibers transition through embryonic and neonatal myosins, prior to selecting their distinctive adult myosin isoform. In this issue of the JCI, Wang et al. discover a checkpoint that regulates the neonatal-to-adult myosin isoform transition. They found that HIF-1α regulated this checkpoint, with elevated HIF-1α levels blocking progression, while HIF-1α knockout accelerated the transition. They further related these findings to centronuclear myopathy, a disease in which HIF-1α is similarly elevated and neonatal myosin expression is maintained. These findings highlight a maturation checkpoint that impacts the skeletal muscle regeneration following ischemic injury, providing a pharmacologically accessible pathway in injury and diseases such as centronuclear myopathy.
影响因子：
2.7
作者：
Wang, Jing-hua;Wang, Qiao-jing;Wang, Chao;Reinholt, Brad;Grant, Alan L.;Gerrard, David E.;Kuang, Shihuan
通讯作者：
Kuang, Shihuan