Microinjection of calpastatin inhibits fusion in myoblasts.
Microinjection of calpastatin inhibits fusion in myoblasts.
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显微注射卡帕他汀抑制成肌细胞的融合。
DOI:
10.1006/excr.1998.4362
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Goll,DE
中科院分区:
文献类型:
--
作者:
Temm-Grove,CJ;Wert,D;Thompson,VF;Allen,RE;Goll,DE
Rat satellite cells (RSC) were microinjected with purified calpastatin or m-calpain, and myoblasts from a C2C12mouse line were microinjected with purified calpastatin. Microinjection with calpastatin completely prevented fusion of myoblasts from both sources, whereas microinjection with m-calpain significantly increased the rate of fusion of cultured RSC; 44% of the nuclei of RSC cultures were in multinucleated myotubes within 48 h after microinjection with m-calpain plus labeled dextran, whereas only 15% of the nuclei were in multinucleated myotubes after microinjection with dextran alone. Western analyses indicated that neither RSC nor C2C12myoblasts contained detectable amounts of μ-calpain before fusion. The levels of calpastatin in C2C12myoblasts increased as cells passed from the proliferative stage to the onset of fusion, and these levels increased substantially in both the C2C12and the RSC cells as they progressed to the late or postfusion stage. Both RSC and C2C12myoblasts contained an 80-kDa polypeptide that was labeled with an anti-m-calpain antibody in Western blots. The results are consistent with a role of the calpain system (m-calpain in these myoblast lines) in remodeling of the cytoskeletal/plasma membrane interactions during cell fusion.
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影响因子:
3.7
作者:
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通讯作者:
J. Schollmeyer
影响因子:
4.8
作者:
Takaomi C. SaidoSfj;Hidenori Suzukiq;Hiroh Yamazakiq;Kenjiro Tanouev;Koichi Suzukis
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Koichi Suzukis
影响因子:
1.6
作者:
A. Kumar;S. Shafiq;R. Wadgaonkar;A. Stracher
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A. Stracher
影响因子:
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作者:
Mellgren,RL;Shaw,E;Mericle,MT
通讯作者:
Mericle,MT
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fox,JE;Goll,DE;Reynolds,CC;Phillips,DR
通讯作者:
Phillips,DR