期刊
FEBS OPEN BIO
卷 5, 期 -, 页码 753-762出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.fob.2015.08.011
关键词
Muscle wasting; Fibre type; FHL1; Myostatin; Mouse
资金
- Medical Research Council (United Kingdom)
- Biotechnology and Biological Sciences Research Council
Myostatin is a TGF beta family ligand that reduces muscle mass. In cancer cells, TGFb signalling is increased by the protein FHL1. Consequently, FHL1 may promote signalling by myostatin. We therefore tested the ability of FHL1 to regulate myostatin function. FHL1 increased the myostatin activity on a SMAD reporter and increased myostatin dependent myotube wasting. In mice, independent expression of myostatin reduced fibre diameter whereas FHL1 increased fibre diameter, both consistent with previously identified effects of these proteins. However, co-expression of FHL1 and myostatin reduced fibre diameter to a greater extent than myostatin alone. Together, these data suggest that the expression of FHL1 may exacerbate muscle wasting under the appropriate conditions. (C) 2015 The Authors. Published by Elsevier B.V. on behalf of the Federation of European Biochemical Societies. This is an open access article under the CC BY license.
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