MicroRNA-219 Modulates NMDA Receptor-Mediated Neurobehavioral DysfunctionProceedings of the National Academy of Sciences of the United States of America (2009)
N-methyl-D-aspartate (NMDA) glutamate receptors are regulators of fast neurotransmission and synaptic plasticity in the brain. Disruption of NMDA-mediated glutamate signaling has been linked to behavioral deficits displayed in psychiatric disorders such as schizophrenia. Recently, noncoding RNA molecules such as microRNAs (miRNAs) have emerged as critical regulators of neuronal functions. Here we show that pharmacological (dizocilpine) or genetic (NR1 hypomorphism) disruption of NMDA receptor signaling reduces levels of a brain-specific miRNA, miR-219, in the prefrontal cortex (PFC) of mice. Consistent with a role for miR-219 in NMDA receptor signaling, we identify calcium/calmodulin-dependent protein kinase II γ subunit (CaMKIIγ), a component of the NMDA receptor signaling cascade, as a target of miR-219. In vivo inhibition of miR-219 by specific antimiR in the murine brain significantly modulated behavioral responses associated with disrupted NMDA receptor transmission. Furthermore, pretreatment with the antipsychotic drugs haloperidol and clozapine prevented dizocilpine-induced effects on miR-219. Taken together, these data support an integral role for miR-219 in the expression of behavioral aberrations associated with NMDA receptor hypofunction.
- Cerebral Cortex,
- Glutamatergic Signaling,
- Regulatory RNA
Publication DateMarch 3, 2009
Citation InformationJannet Kocerha, Mohammad A. Faghihi, Miguel A. Lopez-Toledano, Jia Huang, Amy J. Ramsey, Marc G. Caron, Nicole Sales, David Willoughby, Joacim Elmen, Henrik F. Hansen, Henrik Orum, Sakari Kauppinen, Paul J. Kenny, and Claes Wahlestedt. "MicroRNA-219 Modulates NMDA Receptor-Mediated Neurobehavioral Dysfunction" Proceedings of the National Academy of Sciences of the United States of America 106.9 (2009): 507-512.