PMID- 17592535 OWN - NLM STAT- MEDLINE DCOM- 20070809 LR - 20181113 IS - 1673-7067 (Print) IS - 1995-8218 (Electronic) IS - 1995-8218 (Linking) VI - 23 IP - 2 DP - 2007 Mar TI - Inhibition of the MAPK/ERK cascade: a potential transcription-dependent mechanism for the amnesic effect of anesthetic propofol. PG - 119-24 AB - Intravenous anesthetics are known to cause amnesia, but the underlying molecular mechanisms remain elusive. To identify a possible molecular mechanism, we recently turned our attention to a key intracellular signaling pathway organized by a family of mitogen-activated protein kinases (MAPKs). As a prominent synapse-to-nucleus superhighway, MAPKs couple surface glutamate receptors to nuclear transcriptional events essential for the development and/or maintenance of different forms of synaptic plasticity (long-term potentiation and long-term depression) and memory formation. To define the role of MAPK-dependent transcription in the amnesic property of anesthetics, we conducted a series of studies to examine the effect of a prototype intravenous anesthetic propofol on the MAPK response to N-methyl-D-aspartate receptor (NMDAR) stimulation in hippocampal neurons. Our results suggest that propofol possesses the ability to inhibit NMDAR-mediated activation of a classic subclass of MAPKs, extracellular signal-regulated protein kinase 1/2 (ERK1/2). Concurrent inhibition of transcriptional activity also occurs as a result of inhibited responses of ERK1/2 to NMDA. These findings provide first evidence for an inhibitory modulation of the NMDAR-MAPK pathway by an intravenous anesthetic and introduce a new avenue to elucidate a transcription-dependent mechanism processing the amnesic effect of anesthetics. FAU - Fibuch, Eugene E AU - Fibuch EE AD - Department of Anesthesiology, University of Missouri-Kansas City School of Medicine, Saint Lukeos Hospital, Kansas City, Missouri 64108, USA. FAU - Wang, John Q AU - Wang JQ LA - eng GR - R01-DA010355/DA/NIDA NIH HHS/United States GR - R01-MH061469/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 - Singapore TA - Neurosci Bull JT - Neuroscience bulletin JID - 101256850 RN - 0 (Anesthetics, Intravenous) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 1) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - YI7VU623SF (Propofol) SB - IM MH - Amnesia/chemically induced/enzymology MH - Anesthetics, Intravenous/*pharmacology MH - Animals MH - Cells, Cultured MH - Extracellular Signal-Regulated MAP Kinases/*drug effects/metabolism MH - Hippocampus/cytology/drug effects/enzymology MH - Long-Term Potentiation/drug effects/physiology MH - Memory/drug effects/physiology MH - Mitogen-Activated Protein Kinase 1/drug effects MH - Mitogen-Activated Protein Kinase 3/drug effects MH - Neurons/*drug effects/enzymology MH - Propofol/*pharmacology MH - Rats MH - Receptors, N-Methyl-D-Aspartate/metabolism MH - Signal Transduction/drug effects/physiology MH - Transcriptional Activation/*drug effects PMC - PMC5550596 EDAT- 2007/06/27 09:00 MHDA- 2007/08/10 09:00 PMCR- 2008/03/01 CRDT- 2007/06/27 09:00 PHST- 2007/06/27 09:00 [pubmed] PHST- 2007/08/10 09:00 [medline] PHST- 2007/06/27 09:00 [entrez] PHST- 2008/03/01 00:00 [pmc-release] AID - 17 [pii] AID - 10.1007/s12264-007-0017-y [doi] PST - ppublish SO - Neurosci Bull. 2007 Mar;23(2):119-24. doi: 10.1007/s12264-007-0017-y.