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Fendt, M, Schmid, S, Thakker, DR, Jacobson, LH, Yamamoto, R, Mitsukawa, K, Maier, R, Natt, F, Husken, D, Kelly, PH, McAllister, KH, Hoyer, D, van der Putten, H, Cryan, JF, Flor, PJ;
Molecular Psychiatry
Mglur7 Facilitates Extinction of Aversive Memories and Controls Amygdala Plasticity
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Formation and extinction of aversive memories in the mammalian brain are insufficiently understood at the cellular and molecular levels. Using the novel metabotropic glutamate receptor 7 (mGluR7) agonist AMN082, we demonstrate that mGluR7 activation facilitates the extinction of aversive memories in two different amygdala-dependent tasks. Conversely, mGluR7 knockdown using short interfering RNA attenuated the extinction of learned aversion. mGluR7 activation also blocked the acquisition of Pavlovian fear learning and its electrophysiological correlate long-term potentiation in the amygdala. The finding that mGluR7 critically regulates extinction, in addition to acquisition of aversive memories, demonstrates..
DOI 10.1038/
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