PMID- 11329185 OWN - NLM STAT- MEDLINE DCOM- 20010712 LR - 20191104 IS - 0894-1491 (Print) IS - 0894-1491 (Linking) VI - 34 IP - 3 DP - 2001 May TI - Neuronal signals regulate neurotrophin expression in oligodendrocytes of the basal forebrain. PG - 234-9 AB - Previous studies suggest that oligodendrocytes express trophic molecules, including neurotrophins. These molecules have been shown to influence nearby neurons. To determine whether neuronal signals may, in turn, affect oligodendrocyte-derived trophins, we examined regulation of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neurotrophin-3 (NT-3) mRNA expression in cultured oligodendrocytes of the basal forebrain. Neuronal signals had distinct effects on individual neurotrophins. KCl elicited increases in BDNF mRNA, but did not affect expression of NGF or NT-3. The cholinergic agonist, carbachol, increased expression of NGF, but did not affect expression of BDNF or NT-3. Glutamate elicited a decrease in BDNF, but did not affect expression of NGF or NT-3. This glutamate effect is not due to toxicity, since the number of total cells was unchanged, while the number of mature myelin basic protein positive (MBP+) cells increased. Our observations suggest that individual neuronal signals distinctly influence the trophic function of oligodendrocytes. CI - Copyright 2001 Wiley-Liss, Inc. FAU - Dai, X AU - Dai X AD - Department of Neuroscience and Cell Biology, University of Medicine and Dentistry of New Jersey/Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA. FAU - Qu, P AU - Qu P FAU - Dreyfus, C F AU - Dreyfus CF LA - eng GR - 36647/PHS HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Glia JT - Glia JID - 8806785 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cholinergic Agonists) RN - 0 (Nerve Growth Factors) RN - 0 (Neurotrophin 3) RN - 0 (RNA, Messenger) RN - 3KX376GY7L (Glutamic Acid) RN - 8Y164V895Y (Carbachol) RN - 9061-61-4 (Nerve Growth Factor) RN - RWP5GA015D (Potassium) SB - IM MH - Animals MH - Animals, Newborn MH - Basal Nucleus of Meynert/cytology/drug effects/*metabolism MH - Brain-Derived Neurotrophic Factor/genetics MH - Carbachol/pharmacology MH - Cell Communication/drug effects/*physiology MH - Cells, Cultured/cytology/drug effects/metabolism MH - Cholinergic Agonists/pharmacology MH - Gene Expression Regulation/drug effects/physiology MH - Glutamic Acid/pharmacology MH - Nerve Growth Factor/genetics MH - Nerve Growth Factors/*genetics MH - Neurons/cytology/drug effects/*metabolism MH - Neurotrophin 3/genetics MH - Oligodendroglia/cytology/drug effects/*metabolism MH - Potassium/pharmacology MH - RNA, Messenger/drug effects/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Signal Transduction/drug effects/*physiology EDAT- 2001/05/01 10:00 MHDA- 2001/07/13 10:01 CRDT- 2001/05/01 10:00 PHST- 2001/05/01 10:00 [pubmed] PHST- 2001/07/13 10:01 [medline] PHST- 2001/05/01 10:00 [entrez] AID - 10.1002/glia.1057 [pii] AID - 10.1002/glia.1057 [doi] PST - ppublish SO - Glia. 2001 May;34(3):234-9. doi: 10.1002/glia.1057.