On the role of tubulin, plectin, desmin, and vimentin in the regulation of mitochondrial energy fluxes in muscle cells

American Journal of Physiology. Cell Physiology
Kati MadoT Kaambre

Abstract

Mitochondria perform a central role in life and death of the eukaryotic cell. They are major players in the generation of macroergic compounds and function as integrated signaling pathways, including the regulation of Ca2+ signals and apoptosis. A growing amount of evidence is demonstrating that mitochondria of muscle cells use cytoskeletal proteins (both microtubules and intermediate filaments) not only for their movement and proper cellular positioning, but also to maintain their biogenesis, morphology, function, and regulation of energy fluxes through the outer mitochondrial membrane (MOM). Here we consider the known literature data concerning the role of tubulin, plectin, desmin and vimentin in bioenergetic function of mitochondria in striated muscle cells, as well as in controlling the permeability of MOM for adenine nucleotides (ADNs). This is of great interest since dysfunctionality of these cytoskeletal proteins has been shown to result in severe myopathy associated with pronounced mitochondrial dysfunction. Further efforts are needed to uncover the pathways by which the cytoskeleton supports the functional capacity of mitochondria and transport of ADN(s) across the MOM (through voltage-dependent anion channel).

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Citations

Oct 13, 2019·Cold Spring Harbor Molecular Case Studies·Laura Schultz-RogersRadhika Dhamija
Jan 23, 2020·Cells·Andrey V KuznetsovJudith Hagenbuchner
Mar 7, 2019·American Journal of Physiology. Cell Physiology·Christopher G R Perry, Thomas J Hawke
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Dec 10, 2019·Trends in Biochemical Sciences·Ossama Moujaber, Ursula Stochaj

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Methods Mentioned

BETA
electron microscopy

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