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- W2000128635 abstract "Mesencephalic cell cultures were used as a model to investigate the effects of interleukin-2 (IL-2) on evoked release of [3H]dopamine ([3H]DA) and gamma-[3H]-aminobutyric acid ([3H]GABA). At low concentrations (10(-13)-10(-12) M), IL-2 potentiated [3H]DA release evoked by the excitatory amino acids N-methyl-D-aspartate (NMDA) and kainate, whereas higher IL-2 concentrations (10(-9)-10(-8) M) had no effect. IL-2 (10(-14)-10(-8) M) modulated K(+)-evoked [3H]DA release in a biphasic manner, with low concentrations (10(-12)-10(-11) M) of IL-2 potentiating and higher concentrations (10(-9)-10(-8) M) inhibiting K(+)-induced [3H]DA release. IL-2 (10(-14)-10(-8) M) by itself failed to alter spontaneous [3H]DA release. The inhibition by IL-2 of K(+)-evoked [3H]DA release was reversible and not due to neurotoxicity, as preexposure to IL-2 (10(-8) M) had no significant effect on the subsequent ability of dopaminergic cells to take up and to release [3H]DA. Under our experimental conditions, IL-2 (10(-8) M) did not alter Ca(2+)-independent [3H]GABA release evoked by either K+ or NMDA. The results of this study indicate that IL-2 is able to potentiate [3H]DA release evoked by a number of different stimuli, including K+ depolarization and activation of both NMDA and non-NMDA receptor subtypes in mesencephalic cell cultures. IL-2 is active at very low concentrations, a finding that indicates a potent effect of IL-2 on dopaminergic neurons and implicates a physiological role for this cytokine in the modulation of DA release." @default.
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- W2000128635 date "1993-10-01" @default.
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- W2000128635 title "Interleukin-2 Modulates Evoked Release of [<sup>3</sup>H]Dopamine in Rat Cultured Mesencephalic Cells" @default.
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- W2000128635 doi "https://doi.org/10.1111/j.1471-4159.1993.tb13620.x" @default.
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