Clathrin adaptor GGA1 modulates myogenesis of C2C12 myoblasts.
Clathrin adaptor GGA1 modulates myogenesis of C2C12 myoblasts.
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DOI:
10.1371/journal.pone.0207533
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Kametaka S
中科院分区:
文献类型:
--
作者:
Isobe M;Lee S;Waguri S;Kametaka S
During myogenesis, myogenic stem cells undergo several sequential events, including cell division, migration, and cell-cell fusion, leading to the formation of multinuclear myotubes, which are the precursors of myofibers. To understand the molecular mechanisms underlying these complex processes, an RNA interference-based gene depletion approach was used. Golgi associated, gamma adaptin ear containing, ARF binding protein 1 (GGA1), a Golgi-resident monomeric clathrin adaptor, was found to be required for the process of myotube formation in C2C12 cells, a cultured murine myoblast cell line. Gga1 mRNA expression was upregulated during myogenesis, and Gga1 depletion prevented the formation of large multi-nucleated myotubes. Moreover, inhibition of lysosomal proteases in Gga1 knockdown myoblasts increased the amount of insulin receptor, suggesting that GGA1 is involved in the cell surface expression and sorting of the insulin receptor. These results suggested that GGA1 plays a significant role in the formation and maturation of myotubes by targeting the insulin receptor to the cell surface to establish functionally mature myofibers.
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通讯作者:
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Burgess J;Jauregui M;Tan J;Rollins J;Lallet S;Leventis PA;Boulianne GL;Chang HC;Le Borgne R;Krämer H;Brill JA
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