期刊
PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY
卷 461, 期 3, 页码 325-335出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00424-010-0919-9
关键词
Skeletal muscle; Regeneration; Muscle damage; Myosin heavy chain; Myogenic response
类别
资金
- NHMRC [479536]
Skeletal muscle atrophy occurs in many chronic diseases and disuse conditions. Its severity reduces patient recovery, independence and quality of life. The discovery of two muscle-specific E3 ubiquitin ligases, MAFbx/atrogin-1 and Muscle RING Finger-1 (MuRF1), promoted an expectation of these molecules as targets for therapeutic development. While numerous studies have determined the conditions in which MAFbx/atrogin-1 and MuRF1 mRNA levels are regulated, few studies have investigated their functional role in skeletal muscle. Recently, studies identifying new target substrates for MAFbx/atrogin-1 and MuRF1, outside of their response to the initiation of muscle atrophy, suggest that there is more to these proteins than previously appreciated. This review will highlight our present knowledge of MAFbx/atrogin-1 and MuRF1 in skeletal muscle atrophy, the impact of potential therapeutics and their known regulators and substrates. Finally, we will comment on new approaches that may expand our knowledge of these two molecules in their control of skeletal muscle function.
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