PMID- 11494357 OWN - NLM STAT- MEDLINE DCOM- 20011011 LR - 20151119 IS - 0360-4012 (Print) IS - 0360-4012 (Linking) VI - 65 IP - 3 DP - 2001 Aug 1 TI - Administration of FGF-2 to embryonic mouse brain induces hydrocephalic brain morphology and aberrant differentiation of neurons in the postnatal cerebral cortex. PG - 228-35 AB - Fibroblast growth factor-2 (FGF-2) was injected into mouse cerebral ventricles at embryonic day (E) 14 in utero and its effects on developing brain morphology and expression of various cell- or differentiation-associated protein markers in the cerebral cortex were examined. High doses of FGF-2 (200 or 300 ng) caused encephalic alternations such as deformation of the calvarium, enlargement of the ventricular spaces, and thinning of the cerebral cortex. There was no gross abnormality in the alignment of the cerebral neuronal layers, however, both cell number and cell density of the upper layers (II/III) and the lower layers (IV-VI) of the cerebral cortex were increased. Brain-derived neurotrophic factor (BDNF), tyrosine hydroxylase, nestin, and microtubule-associated protein 2 were aberrantly or ectopically expressed in the deep areas of the cerebral cortex. A substantial number of these cells coexpressed these antigens. These observations demonstrate that a subpopulation of neurons in the cortical deep layer abnormally differentiated or partly sustained their immature state following a single administration of FGF-2 at E14. Developmental analysis of localization of BDNF-positive cells suggested that the abnormality started around P5. Furthermore, cell migration was not affected by FGF-2 administration. FGF-2 seems to play predominant roles in the proliferation of neuronal precursors and in neuronal differentiation in the developing mouse cerebral cortex even at relatively late stages of brain neurogenesis. CI - Copyright 2001 Wiley-Liss, Inc. FAU - Ohmiya, M AU - Ohmiya M AD - Laboratory of Molecular Biology, Gifu Pharmaceutical University, Mitahora-higashi, Gifu 502-8585, Japan. FAU - Fukumitsu, H AU - Fukumitsu H FAU - Nitta, A AU - Nitta A FAU - Nomoto, H AU - Nomoto H FAU - Furukawa, Y AU - Furukawa Y FAU - Furukawa, S AU - Furukawa S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci Res JT - Journal of neuroscience research JID - 7600111 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Intermediate Filament Proteins) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Nes protein, mouse) RN - 0 (Nestin) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - EC 1.14.16.2 (Tyrosine 3-Monooxygenase) SB - IM MH - Animals MH - Biomarkers MH - Brain-Derived Neurotrophic Factor/analysis MH - Cell Differentiation/drug effects MH - Cell Division/drug effects MH - Cell Movement MH - Cerebral Cortex/abnormalities/*drug effects/embryology/pathology MH - Fibroblast Growth Factor 2/administration & dosage/*pharmacology/physiology MH - Gestational Age MH - Hydrocephalus/*chemically induced/pathology MH - Injections, Intraventricular MH - Intermediate Filament Proteins/analysis MH - Mice MH - Mice, Mutant Strains MH - Microtubule-Associated Proteins/analysis MH - Nerve Tissue Proteins/analysis MH - Nestin MH - Neurons/*pathology MH - Tyrosine 3-Monooxygenase/analysis EDAT- 2001/08/09 10:00 MHDA- 2001/10/12 10:01 CRDT- 2001/08/09 10:00 PHST- 2001/08/09 10:00 [pubmed] PHST- 2001/10/12 10:01 [medline] PHST- 2001/08/09 10:00 [entrez] AID - 10.1002/jnr.1146 [doi] PST - ppublish SO - J Neurosci Res. 2001 Aug 1;65(3):228-35. doi: 10.1002/jnr.1146.