Abstract:
:In this study, we identified a previously uncharacterized skeletal satellite cell-secreted protein, R3h domain containing-like (R3hdml). Expression of R3hdml increases during skeletal muscle development and differentiation in mice. Body weight and skeletal muscle mass of R3hdml knockout (KO) mice are lower compared to control mice. Expression levels of cell cycle-related markers, phosphorylation of Akt, and expression of insulin-like growth factor within the skeletal muscle are reduced in R3hdml KO mice compared to control mice. Expression of R3hdml increases during muscle regeneration in response to cardiotoxin (CTX)-induced muscle injury. Recovery of handgrip strength after CTX injection was significantly impaired in R3hdml KO mice, which is rescued by R3hdml. Our results indicate that R3hdml is required for skeletal muscle development, regeneration, and, in particular, satellite cell proliferation and differentiation.
journal_name
EMBO Repjournal_title
EMBO reportsauthors
Sakamoto K,Furuichi Y,Yamamoto M,Takahashi M,Akimoto Y,Ishikawa T,Shimizu T,Fujimoto M,Takada-Watanabe A,Hayashi A,Mita Y,Manabe Y,Fujii NL,Ishibashi R,Maezawa Y,Betsholtz C,Yokote K,Takemoto Mdoi
10.15252/embr.201947957subject
Has Abstractpub_date
2019-11-05 00:00:00pages
e47957issue
11eissn
1469-221Xissn
1469-3178journal_volume
20pub_type
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