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Title

L-Type Calcium Channels Modulation by Estradiol

AuthorsVega-Vela, Nelson A.; Osorio, Daniel; Ávila-Rodriguez, Marco; Gonzalez, Janneth; García-Segura, Luis M. ; Echeverria, Valentina; Barreto, George E.
KeywordsVoltage-gated calcium channels
Estradiol
Calcium signaling
Estrogen receptor-independent mechanisms
Estrogen non-genomic actions
DHP binding site
Issue Date2017
PublisherSpringer Nature
CitationMolecular neurobiology 54: 4996-5007 (2017)
AbstractVoltage-gated calcium channels are key regulators of brain function, and their dysfunction has been associated with multiple conditions and neurodegenerative diseases because they couple membrane depolarization to the influx of calcium—and other processes such as gene expression—in excitable cells. L-type calcium channels, one of the three major classes and probably the best characterized of the voltage-gated calcium channels, act as an essential calcium binding proteins with a significant biological relevance. It is well known that estradiol can activate rapidly brain signaling pathways and modulatory/regulatory proteins through non-genomic (or non-transcriptional) mechanisms, which lead to an increase of intracellular calcium that activate multiple kinases and signaling cascades, in the same way as L-type calcium channels responses. In this context, estrogens—L-type calcium channels signaling raises intracellular calcium levels and activates the same signaling cascades in the brain probably through estrogen receptor-independent modulatory mechanisms. In this review, we discuss the available literature on this area, which seems to suggest that estradiol exerts dual effects/modulation on these channels in a concentration-dependent manner (as a potentiator of these channels in pM concentrations and as an inhibitor in nM concentrations). Indeed, estradiol may orchestrate multiple neurotrophic responses, which open a new avenue for the development of novel estrogen-based therapies to alleviate different neuropathologies. We also highlight that it is essential to determine through computational and/or experimental approaches the interaction between estradiol and L-type calcium channels to assist these developments, which is an interesting area of research that deserves a closer look in future biomedical research.
Publisher version (URL)http://dx.doi.org/10.1007/s12035-016-0045-6
URIhttp://hdl.handle.net/10261/201010
DOI10.1007/s12035-016-0045-6
ISSN0893-7648
E-ISSN1559-1182
Appears in Collections:(IC) Artículos
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