PMID- 20724638 OWN - NLM STAT- MEDLINE DCOM- 20100902 LR - 20220408 IS - 1095-9203 (Electronic) IS - 0036-8075 (Print) IS - 0036-8075 (Linking) VI - 329 IP - 5994 DP - 2010 Aug 20 TI - mTOR-dependent synapse formation underlies the rapid antidepressant effects of NMDA antagonists. PG - 959-64 LID - 10.1126/science.1190287 [doi] AB - The rapid antidepressant response after ketamine administration in treatment-resistant depressed patients suggests a possible new approach for treating mood disorders compared to the weeks or months required for standard medications. However, the mechanisms underlying this action of ketamine [a glutamate N-methyl-D-aspartic acid (NMDA) receptor antagonist] have not been identified. We observed that ketamine rapidly activated the mammalian target of rapamycin (mTOR) pathway, leading to increased synaptic signaling proteins and increased number and function of new spine synapses in the prefrontal cortex of rats. Moreover, blockade of mTOR signaling completely blocked ketamine induction of synaptogenesis and behavioral responses in models of depression. Our results demonstrate that these effects of ketamine are opposite to the synaptic deficits that result from exposure to stress and could contribute to the fast antidepressant actions of ketamine. FAU - Li, Nanxin AU - Li N AD - Laboratory of Molecular Psychiatry, Center for Genes and Behavior, Department of Psychiatry, Yale University School of Medicine, 34 Park Street, New Haven, CT 06508, USA. FAU - Lee, Boyoung AU - Lee B FAU - Liu, Rong-Jian AU - Liu RJ FAU - Banasr, Mounira AU - Banasr M FAU - Dwyer, Jason M AU - Dwyer JM FAU - Iwata, Masaaki AU - Iwata M FAU - Li, Xiao-Yuan AU - Li XY FAU - Aghajanian, George AU - Aghajanian G FAU - Duman, Ronald S AU - Duman RS LA - eng GR - P01 MH025642/MH/NIMH NIH HHS/United States GR - 2P01 MH25642/MH/NIMH NIH HHS/United States GR - P01 MH025642-30/MH/NIMH NIH HHS/United States GR - R01 MH045481-13/MH/NIMH NIH HHS/United States GR - MH45481/MH/NIMH NIH HHS/United States GR - R01 MH045481-14/MH/NIMH NIH HHS/United States GR - P01 MH025642-32/MH/NIMH NIH HHS/United States GR - R01 MH045481-15/MH/NIMH NIH HHS/United States GR - R01 MH045481/MH/NIMH NIH HHS/United States GR - P01 MH025642-31/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (Antidepressive Agents) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Neuropeptides) RN - 0 (Phenols) RN - 0 (Piperidines) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 0 (Ro 25-6981) RN - 690G0D6V8H (Ketamine) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - W36ZG6FT64 (Sirolimus) SB - IM CIN - Science. 2010 Aug 20;329(5994):913-4. PMID: 20724626 CIN - Nat Rev Neurosci. 2010 Oct;11(10):666. PMID: 21080533 CIN - Expert Rev Neurother. 2011 Jan;11(1):33-6. PMID: 21158553 MH - Animals MH - Antidepressive Agents/pharmacokinetics/*pharmacology MH - Dendritic Spines/drug effects/metabolism MH - Depression/drug therapy/metabolism MH - Intracellular Signaling Peptides and Proteins/agonists MH - Ketamine/pharmacokinetics/*pharmacology MH - Male MH - Neurons/drug effects/metabolism MH - Neuropeptides/*biosynthesis/metabolism MH - Phenols/pharmacology MH - Piperidines/pharmacology MH - Protein Biosynthesis/drug effects MH - Protein Serine-Threonine Kinases MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, N-Methyl-D-Aspartate/*antagonists & inhibitors MH - Signal Transduction/drug effects MH - Sirolimus/pharmacology MH - Synapses/*drug effects/metabolism MH - TOR Serine-Threonine Kinases MH - Time Factors PMC - PMC3116441 MID - NIHMS293810 EDAT- 2010/08/21 06:00 MHDA- 2010/09/03 06:00 PMCR- 2011/06/16 CRDT- 2010/08/21 06:00 PHST- 2010/08/21 06:00 [entrez] PHST- 2010/08/21 06:00 [pubmed] PHST- 2010/09/03 06:00 [medline] PHST- 2011/06/16 00:00 [pmc-release] AID - 329/5994/959 [pii] AID - 10.1126/science.1190287 [doi] PST - ppublish SO - Science. 2010 Aug 20;329(5994):959-64. doi: 10.1126/science.1190287.