Abstract
Staurosporine-induced apoptosis was associated with a 20% cellular survival rate in primary rat forebrain cultures. Treatment with the NR2B subunit-selective NMDA receptor antagonist conantokin-G (0.1–1 μM) increased the survival rate up to 78%. No protection was provided by the nonselective NMDA receptor antagonist dizocilpine (0.01–10 μM) but 34–64% cellular survival was provided by ifenprodil (0.01–10 μM), another NR2B subunit-selective antagonist. These results suggest a novel anti-apoptotic mechanism linked to the NR2B receptor subunit.
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