Abstract:
:The intracellular concentration of free Ca2+ ([Ca2+]i) displays complex fluctuations in response to a variety of stimuli, and acts as a pluripotent signal for many neuronal functions. It is well established that various 'metabotropic' neurotransmitter receptors can mediate the mobilization of Ca2+ stores via actions of inositol-polyphosphate second messengers, and more recent evidence suggests that 'ionotropic' receptor-mediated Ca2+ signals in neurones might also involve release of Ca2+ from intracellular stores. These two mechanisms of release of Ca2+ enable considerable temporal and spatial complexity of increases in the [Ca2+]i via multiple interactions at the level of intracellular-receptor activation. The complexity of Ca2+ signalling that is elicited via these interconnecting pathways might underlie mechanisms that are central to information transfer and integration within neuronal compartments.
journal_name
Trends Neuroscijournal_title
Trends in neurosciencesauthors
Simpson PB,Challiss RA,Nahorski SRdoi
10.1016/0166-2236(95)93919-osubject
Has Abstractpub_date
1995-07-01 00:00:00pages
299-306issue
7eissn
0166-2236issn
1878-108Xpii
016622369593919Ojournal_volume
18pub_type
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