Title : Repeated amphetamine treatment induces neurite outgrowth and enhanced amphetamine-stimulated dopamine release in rat pheochromocytoma cells (PC12 cells) via a protein kinase C- and mitogen activated protein kinase-dependent mechanism.

Pub. Date : 2003 Dec

PMID : 14713310






5 Functional Relationships(s)
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1 We investigated the role of protein kinases in the induction of these AMPH-mediated events by using inhibitors of protein kinase C (PKC), mitogen activated protein kinase (MAP kinase) or protein kinase A (PKA). Amphetamine protein kinase cAMP-activated catalytic subunit alpha Rattus norvegicus
2 On the contrary, a selective PKA inhibitor, 100 micro m Rp-8-Br-cAMPS, blocked only the development of AMPH-stimulated DA release but not the neurite outgrowth. Amphetamine protein kinase cAMP-activated catalytic subunit alpha Rattus norvegicus
3 Treatment of the cells with acute AMPH elicited an increase in the activity of PKC and MAP kinase but not PKA. Amphetamine protein kinase cAMP-activated catalytic subunit alpha Rattus norvegicus
4 These results demonstrated that AMPH-induced increases in MAP kinase and PKC are important for induction of both the enhancement in transporter-mediated DA release and neurite outgrowth but PKA was only required for the enhancement in AMPH-stimulated DA release. Amphetamine protein kinase cAMP-activated catalytic subunit alpha Rattus norvegicus
5 These results demonstrated that AMPH-induced increases in MAP kinase and PKC are important for induction of both the enhancement in transporter-mediated DA release and neurite outgrowth but PKA was only required for the enhancement in AMPH-stimulated DA release. Amphetamine protein kinase cAMP-activated catalytic subunit alpha Rattus norvegicus