Abstract
The synchronization of numerous cellular events requires complex electric and metabolic cell-cell interactions. Connexins are a family of membrane proteins that constitute the molecular basis of two kinds of channels: gap junction channels (GJCs), which allow direct cytoplasm-cytoplasm communication, and hemichannels (HCs) that provide a pathway for exchanges between the intra and extra-cellular milieu. Both kind of connexin-based channels support intercellular communication via intercellular propagation of calcium waves. Here, we review evidence supporting the role of Ca2+ in the regulation of GJCs and HCs formed by connexins. Also it is speculated how these connexin-based channels could contribute to the propagation of intercellular Ca2+ signals.
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Acknowledgements
This work was partially supported by the CONICYT 79090028 (to JAO); FONDECYT 1111033 (to JCS); FONDEF DO7I1086 (to JCS); and ANILLO ACT-71 (to JCS) grants.
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Orellana, J.A., Sánchez, H.A., Schalper, K.A., Figueroa, V., Sáez, J.C. (2012). Regulation of Intercellular Calcium Signaling Through Calcium Interactions with Connexin-Based Channels. In: Islam, M. (eds) Calcium Signaling. Advances in Experimental Medicine and Biology, vol 740. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2888-2_34
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Print ISBN: 978-94-007-2887-5
Online ISBN: 978-94-007-2888-2
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)