Lysosomal Functions and Stimulates the The Activation of P2X7 Receptor Impairs
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P 107: P2x7 Receptors: as a Novel Targets for the Treatment of Neuroinflammation
P2x7 receptors are Purineric receptors that are extracellular ATP-gated ion channel. These receptors require high dose or prolonged exposure to ATP for initial activation. The Activation of these receptors facilitates the formation of inflammasome which activates caspase 1. The P20 and P10 subunits of caspase 1 form active enzyme that then releases active interleukin (IL)-1 β and IL-18, tu...
متن کاملLead exposure impairs the NMDA agonist-induced NOS expression in pyramidal hippocampal cells
Chronic exposure to lead (Pb) affects neural functions in central nervous system (CNS) particularly the learning and memory. On the other hand, alteration of calcium level in the CNS results in activation of NOS. It has been shown that lead enters the neurons through calcium channels and displaces Ca2+ from calcium binding proteins such as calmodulin and troponin C thereby affecting calcium-med...
متن کاملLead exposure impairs the NMDA agonist-induced NOS expression in pyramidal hippocampal cells
Chronic exposure to lead (Pb) affects neural functions in central nervous system (CNS) particularly the learning and memory. On the other hand, alteration of calcium level in the CNS results in activation of NOS. It has been shown that lead enters the neurons through calcium channels and displaces Ca2+ from calcium binding proteins such as calmodulin and troponin C thereby affecting calcium-med...
متن کاملQSAR studies and application of genetic algorithm - multiple linear regressions in prediction of novel p2x7 receptor antagonists’ activity
Quantitative structure-activity relationship (QSAR) models were employed for prediction the activity of P2X7 receptor antagonists. A data set consisted of 50 purine derivatives was utilized in the model construction where 40 and 10 of these compounds were in the training and test sets respectively. A suitable group of calculated molecular descriptors was selected by employing stepwise multiple ...
متن کاملLysosomal alkalinization, lipid oxidation, and reduced phagosome clearance triggered by activation of the P2X7 receptor.
Lysosomal enzymes function optimally at low pH; as accumulation of waste material contributes to cell aging and disease, dysregulation of lysosomal pH may represent an early step in several pathologies. Here, we demonstrate that stimulation of the P2X7 receptor (P2X7R) for ATP alkalinizes lysosomes in cultured human retinal pigmented epithelial (RPE) cells and impairs lysosomal function. P2X7R ...
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تاریخ انتشار 2009