complex(GO:"voltage-gated calcium channel complex")
Anandamide, a compound originally isolated from porcine brain extracts, is known to interact with canabinoid receptors 1 and 2 in the brain (120, 159). However, anandamide interacts with numerous other receptors, including voltage-gated Ca2+ channels (357), voltage-gated K+ channels (293), 5-HT3 receptors (358), kainate receptors (3), and nAChRs (356). At nanomolar concentrations, anandamine blocks noncompetitively and voltage independently the activation of alpha7 nAChRs ectopically expressed in Xenopus oocytes (356). It also inhibits the activity of alpha4beta2 nAChRs expressed in SH-EP1 cells (443). PubMed:19126755
If there is intense stimulation of all three nAChRs, the resulting depolarization can trigger activation of voltage- gated Ca2+ channels (VGCC), which in turn would activate the calcineurin pathway and prevent CREB activation. PubMed:19126755
A concurrent activation of preterminal alpha4beta2 nAChRs would hyperpolarize the neuron via GABAergic inhibition and prevent activation of the VGCC. PubMed:19126755
This effect of preterminal nAChRs is inhibited by tetrodotoxin, which blocks sodium channels and, thus, prevents the regenerative voltage-dependent activation of calcium channels in the presynaptic bouton. PubMed:17009926
In addition, nAChR activity produces a depolarization that activates voltage-gated calcium channels in the presynaptic terminal (87). PubMed:17009926
Preterminal nAChRs located before the presynaptic terminal bouton indirectly affect neurotransmitter release by activating voltage-gated channels and, potentially, initiating action potentials (78, 91, 93). PubMed:17009926
If there is intense stimulation of all three nAChRs, the resulting depolarization can trigger activation of voltage- gated Ca2+ channels (VGCC), which in turn would activate the calcineurin pathway and prevent CREB activation. PubMed:19126755
If there is intense stimulation of all three nAChRs, the resulting depolarization can trigger activation of voltage- gated Ca2+ channels (VGCC), which in turn would activate the calcineurin pathway and prevent CREB activation. PubMed:19126755
Anandamide, a compound originally isolated from porcine brain extracts, is known to interact with canabinoid receptors 1 and 2 in the brain (120, 159). However, anandamide interacts with numerous other receptors, including voltage-gated Ca2+ channels (357), voltage-gated K+ channels (293), 5-HT3 receptors (358), kainate receptors (3), and nAChRs (356). At nanomolar concentrations, anandamine blocks noncompetitively and voltage independently the activation of alpha7 nAChRs ectopically expressed in Xenopus oocytes (356). It also inhibits the activity of alpha4beta2 nAChRs expressed in SH-EP1 cells (443). PubMed:19126755
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If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.