PMID- 18296432 OWN - NLM STAT- MEDLINE DCOM- 20081222 LR - 20211020 IS - 1460-2199 (Electronic) IS - 1047-3211 (Print) IS - 1047-3211 (Linking) VI - 18 IP - 11 DP - 2008 Nov TI - Developmental regulation of the NMDA receptor subunits, NR3A and NR1, in human prefrontal cortex. PG - 2560-73 LID - 10.1093/cercor/bhn017 [doi] AB - Subunit composition of N-methyl-D-aspartate-type glutamate receptors (NMDARs) dictates their function, yet the ontogenic profiles of human NMDAR subunits from gestation to adulthood have not been determined. We examined NMDAR mRNA and protein development in human dorsolateral prefrontal cortex (DLPFC), an area in which NMDARs are critical for higher cognitive processing and NMDAR hypofunction is hypothesized in schizophrenia. Using quantitative reverse transcriptase-polymerase chain reaction and western blotting, we found NR1 expression begins low prenatally, peaks in adolescence, yet remains high throughout life, suggesting lifelong importance of NMDAR function. In contrast, NR3A levels are low during gestation, surge soon after birth, and decline progressively through adolescence and into adulthood. Because NR3A subunits uniquely attenuate NMDAR-mediated currents, limit calcium influx, and suppress dendritic spine formation, high levels during early childhood may be important for regulating neuroprotection and activity-dependent sculpting of synapses. We also examined whether subunit changes underlie reduced NMDAR activity in schizophrenia. Our results reveal normal NR1 and NR3A protein levels in DLPFC from schizophrenic patients, indicating that NMDAR hypofunction is unlikely to be maintained by gross changes in NR3A-containing NMDARs or overall NMDAR numbers. These data provide insights into NMDAR functions in the developing CNS and will contribute to designing pharmacotherapies for neurological disorders. FAU - Henson, Maile A AU - Henson MA AD - Curriculum in Neurobiology, University of North Carolina, Chapel Hill, NC 27705, USA. FAU - Roberts, Adam C AU - Roberts AC FAU - Salimi, Kayvon AU - Salimi K FAU - Vadlamudi, Swarooparani AU - Vadlamudi S FAU - Hamer, Robert M AU - Hamer RM FAU - Gilmore, John H AU - Gilmore JH FAU - Jarskog, L Fredrik AU - Jarskog LF FAU - Philpot, Benjamin D AU - Philpot BD LA - eng GR - R01 EY018323/EY/NEI NIH HHS/United States GR - R01 EY018323-02/EY/NEI NIH HHS/United States GR - MH064065/MH/NIMH NIH HHS/United States GR - 2R25GM055336/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20080221 PL - United States TA - Cereb Cortex JT - Cerebral cortex (New York, N.Y. : 1991) JID - 9110718 RN - 0 (Antipsychotic Agents) RN - 0 (NR1 NMDA receptor) RN - 0 (NR2A NMDA receptor) RN - 0 (NR2B NMDA receptor) RN - 0 (NR3A NMDA receptor) RN - 0 (Receptors, N-Methyl-D-Aspartate) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Animals MH - Antipsychotic Agents/pharmacology/therapeutic use MH - Child MH - Child, Preschool MH - Fetus MH - *Gene Expression Regulation, Developmental MH - Humans MH - Infant MH - Infant, Newborn MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Middle Aged MH - Prefrontal Cortex/embryology/*growth & development/*physiology MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, N-Methyl-D-Aspartate/*genetics/metabolism MH - Schizophrenia/drug therapy/*physiopathology MH - Young Adult PMC - PMC2733318 EDAT- 2008/02/26 09:00 MHDA- 2008/12/23 09:00 PMCR- 2009/11/01 CRDT- 2008/02/26 09:00 PHST- 2008/02/26 09:00 [pubmed] PHST- 2008/12/23 09:00 [medline] PHST- 2008/02/26 09:00 [entrez] PHST- 2009/11/01 00:00 [pmc-release] AID - bhn017 [pii] AID - 10.1093/cercor/bhn017 [doi] PST - ppublish SO - Cereb Cortex. 2008 Nov;18(11):2560-73. doi: 10.1093/cercor/bhn017. Epub 2008 Feb 21.