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Ca2+ signaling in neurons is intimately associated with the regulation of vital physiological processes including growth, survival and differentiation. In neurons, Ca2+ elicits two major functions. First as a charge carrier, Ca2+ reveals an indispensable role in information relay via membrane depolarization, exocytosis, and the release of neurotransmitters. Second on a global basis, Ca2+ acts as a...
Salsolinol, an endogenous neurotoxin, may be involved in the pathogenesis of Parkinson's disease. In this study, we sought to determine whether salsolinol-induced cytotoxicity in SH-SY5Y human neuroblastoma cells, a cloned cell line which expresses dopaminergic activity, could be prevented by overexpressing a Ca 2+ channel, transient receptor potential (TRPC1) protein. Exposure of SH-SY5Y...
The mechanism(s) involved in agonist-stimulation of TRPC3 channels is not yet known. Here we demonstrate that TRPC3-N terminus interacts with VAMP2 and αSNAP. Further, endogenous and exogenously expressed TRPC3 colocalized and coimmunoprecipitated with SNARE proteins in neuronal and epithelial cells. Imaging of GFP-TRPC3 revealed its localization in the plasma membrane region and in mobile intracellular...
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