Maintenance of muscle mass, fiber size, and contractile function in mice lacking the Z-disc protein myotilin.
Maintenance of muscle mass, fiber size, and contractile function in mice lacking the Z-disc protein myotilin.
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DOI:
10.3109/03009730903276399
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发表时间:
2009
影响因子:
3.4
通讯作者:
Larsson L
中科院分区:
文献类型:
--
作者:
Ochala J;Carpén O;Larsson L
Myofibrillar myopathies constitute a rare group of congenital neuromuscular disorders, frequently associated with mutations in Z-disc proteins such as myotilin. Myotilin location and interactions with other Z-disc proteins are clearly defined, but its role in the regulation of muscle structure and function remains unknown. The present study aims at investigating this specific role of myotilin. Skeletal and cardiac muscles were collected from adult mice with a targeted deletion of myotilin (myo-/-) and wild-type animals (myo+/+). Similar skeletal and cardiac muscle weights were observed in myo-/- and myo+/+ mice. At the muscle cell level, the size and force production of single membrane permeabilized fibers were identical between myo-/- and myo+/+ rodents. Thus, myotilin does not have a significant influence on muscle mass, muscle fiber size, or regulation of muscle contraction. Alternatively, compensatory over-expressions of other elements including proteins from the same subfamily, or Z-disc proteins such as telethonin, or intermediate filaments may compensate for the lack of myotilin.
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影响因子:
5.3
作者:
Moza, Monica;Mologni, Luca;Carpen, Olli
通讯作者:
Carpen, Olli
影响因子:
64.5
作者:
Knöll, R;Hoshijima, M;Chien, KR
通讯作者:
Chien, KR
影响因子:
9.8
作者:
Vorgerd, M;van der Ven, PFM;Huebner, A
通讯作者:
Huebner, A
影响因子:
7.8
作者:
Zhou, Q;Chu, P H;Huang, C;Cheng, C F;Martone, M E;Knoll, G;Shelton, G D;Evans, S;Chen, J
通讯作者:
Chen, J
DOI:
10.1083/jcb.153.2.413
发表时间:
2001-04-16
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bang ML;Mudry RE;McElhinny AS;Trombitás K;Geach AJ;Yamasaki R;Sorimachi H;Granzier H;Gregorio CC;Labeit S
通讯作者:
Labeit S