α7-nicotinic acetylcholine receptors (α7nAChRs) modulate the effects of the main psychoactive ingredient of marijuana, Δ9-tetrahydrocannabinol (THC), in the brain. Here the authors show that pharmacologically enhancing kynurenic acid, an endogenous modulator of α7nAChRs, attenuated the rewarding properties of THC and prevented drug relapse in monkeys and rats.
- Zuzana Justinova
- Paola Mascia
- Steven R Goldberg