journal article Oct 01, 2011

Fiber Types in Mammalian Skeletal Muscles

View at Publisher Save 10.1152/physrev.00031.2010
Abstract
Mammalian skeletal muscle comprises different fiber types, whose identity is first established during embryonic development by intrinsic myogenic control mechanisms and is later modulated by neural and hormonal factors. The relative proportion of the different fiber types varies strikingly between species, and in humans shows significant variability between individuals. Myosin heavy chain isoforms, whose complete inventory and expression pattern are now available, provide a useful marker for fiber types, both for the four major forms present in trunk and limb muscles and the minor forms present in head and neck muscles. However, muscle fiber diversity involves all functional muscle cell compartments, including membrane excitation, excitation-contraction coupling, contractile machinery, cytoskeleton scaffold, and energy supply systems. Variations within each compartment are limited by the need of matching fiber type properties between different compartments. Nerve activity is a major control mechanism of the fiber type profile, and multiple signaling pathways are implicated in activity-dependent changes of muscle fibers. The characterization of these pathways is raising increasing interest in clinical medicine, given the potentially beneficial effects of muscle fiber type switching in the prevention and treatment of metabolic diseases.
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References
905
[5]
The M-band: an elastic web that crosslinks thick filaments in the center of the sarcomere

Irina Agarkova, Jean-Claude Perriard

Trends in Cell Biology 10.1016/j.tcb.2005.07.001
[8]
Exercise Stimulates Pgc-1α Transcription in Skeletal Muscle through Activation of the p38 MAPK Pathway

Takayuki Akimoto, Steven C. Pohnert, Ping Li et al.

Journal of Biological Chemistry 10.1074/jbc.m408862200
[10]
Alberty RA J Biol Chem (1969) 10.1016/s0021-9258(18)93127-3
[22]
Andersen JL J Physiol (2002)
[30]
Aragon JJ Suppl (1980)
[31]
Transcriptional coactivator PGC-1α controls the energy state and contractile function of cardiac muscle

Zoltan Arany, Huamei He, Jiandie Lin et al.

Cell Metabolism 10.1016/j.cmet.2005.03.002
[45]
Bao ZZ J Cell Sci (1993) 10.1242/jcs.106.2.579

Showing 50 of 905 references

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