D2 dopamine receptors stimulate mitogenesis through pertussis toxin-sensitive G proteins and Ras-involved ERK and SAP/JNK pathways in rat C6-D2L glioma cells.

Abstract excerpt

Dopamine D2 receptors are members of the G protein-coupled receptor superfamily and are expressed on both neurons and astrocytes. Using rat C6 glioma cells stably expressing the rat D2L receptor, we show here that dopamine (DA) can activate both the extracellular signal-regulated kinase (ERK) and c-Jun NH2-terminal kinase (JNK) pathways through a mechanism involving D2 receptor-G protein complexes and the Ras...

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