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Citation
VIOLA, H.M. & HOOL, L.C. (2009). Cross-talk between L-type Ca2+ channels and mitochondria. Clinical and Experimental Pharmacology and Physiology, 37(2), 229-235.
Title
Cross-talk between L-type Ca2+ channels and mitochondria
Author
Year
2010
Published in
Abstract
1. Calcium is necessary for myocardial function, including contraction and maintenance of cardiac output. Calcium is also necessary for myocardial energetics and production of ATP by mitochondria, but the mechanisms for calcium regulation by mitochondria are still not fully resolved.2. The cytoskeleton plays an important role in maintaining a cell’s integrity. It is now recognized that cytoskeletal proteins can also assist in the transmission of signals from the plasma membrane to intracellular organelles. Cytoskeletal proteins can regulate the function of the L-type Ca2+ channel and alter intracellular calcium homeostasis.3. Recent evidence suggests that calcium influx through the L-type Ca2+ channel is sufficient to alter a number of mitochondrial functional parameters, including superoxide production, NADH production and metabolic activity, assessed as the formation of formazan from tetrazolium salt. This occurs in a calcium-dependent manner.4. Activation of the L-type Ca2+ channel also alters mitochondrial membrane potential in a calcium-independent manner and this is assisted by movement of the auxiliary β2-subunit through F-actin filaments.5. Because the L-type Ca2+ channel is the initiator of contraction, a functional coupling between the channels and mitochondria may assist in meeting myocardial energy demand on a beat-to-beat basis.
Identifier
http://dx.doi.org/10.1111/j.1440-1681.2009.05277.x
Identifier
VIOLA, H.M. & HOOL, L.C. (2009). Cross-talk between L-type Ca2+ channels and mitochondria. Clinical and Experimental Pharmacology and Physiology, 37(2), 229-235.
Identifier
0305-1870
Identifier
http://repository.uwa.edu.au:80/R/-?func=dbin-jump-full&object_id=26993&silo_library=GEN01
ISBN/ISSN
0305-1870
Subject
Department/School
Type
Journal article
Additional Information
Link to Publisher's website supplied in Alternative Location.
Alternative Location
DOI
Persistent URL
http://repository.uwa.edu.au:80/R/-?func=dbin-jump-full&object_id=26993&silo_library=GEN01
Related collections
Life and Physical Sciences > Biomedical, Biomolecular and Chemical Sciences