PMID- 15830096 OWN - NLM STAT- MEDLINE DCOM- 20120628 LR - 20050414 IS - 0371-0874 (Print) IS - 0371-0874 (Linking) VI - 57 IP - 2 DP - 2005 Apr 25 TI - Induction of rat neural stem cells into oligodendrocyte precursor cells. PG - 132-8 AB - We have previously established a culture method to isolate and cultivate neural stem cells (NSCs) derived from the rat embryonic brain and spinal cord. In the present study, we demonstrate that the spinal cord-derived NSCs can be induced to differentiate into oligodendrocyte precursor cells (OPCs) with a combined treatment composed of (1) conditioned medium collected from B104 neuroblastoma cells (B104CM) and (2) basic fibroblast growth factor (bFGF, 10 ng/ml). After induction, over 95% of the cells displayed bipolar or tri-polar morphology and expressed A2B5 and platelet derived growth factor receptor-alpha (PDGFR-alpha), markers that are specific for OPCs. Among PDGFR-alpha positive OPCs, only a few cells expressed glia fibrillary acidic protein (GFAP) and none expressed beta-tubulin III. In the presence of B104CM and bFGF, OPCs proliferated rapidly, formed spheres, expanded for multiple passages, and maintained their phenotypic properties. Upon withdrawal of B104CM and bFGF, these cells differentiated into either O4/GlaC-positive oligodendrocytes (OLs) or GFAP- and A2B5-positive type-2 astrocytes. Our results indicate that NSCs can be induced to differentiate into OPCs that possess properties of self-renewal and differentiation into oligodendrocytes and type-2 astrocytes, a property similar to that of O-2A progenitor cells. The OPCs can be maintained in an undifferentiated state over multiple divisions as long as both B104CM and bFGF are present in the medium. Thus, large quantity of OPCs can be obtained through this method for potential therapeutical interventions for various neurological degenerative diseases. FAU - Fu, Sai-Li AU - Fu SL AD - Department of Neurobiology, Shanghai Second Medical University, Shanghai 200025, China. FAU - Hu, Jian-Guo AU - Hu JG FAU - Li, Ying AU - Li Y FAU - Yin, Lan AU - Yin L FAU - Jin, Jian-Qiang AU - Jin JQ FAU - Xu, Xiao-Ming AU - Xu XM FAU - Lu, Pei-Hua AU - Lu PH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Sheng Li Xue Bao JT - Sheng li xue bao : [Acta physiologica Sinica] JID - 20730130R RN - 0 (Hexanones) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 111050-72-7 (1-((3,5-dichloro)-2,6-dihydroxy-4-methoxyphenyl)-1-hexanone) SB - IM MH - Animals MH - Cell Differentiation/*physiology MH - Cell Line, Tumor MH - Cells, Cultured MH - Embryo, Mammalian MH - Female MH - Fibroblast Growth Factor 2/physiology MH - Hexanones MH - Neural Stem Cells/*cytology MH - Neuroblastoma/*pathology MH - Oligodendroglia/*cytology MH - Pregnancy MH - Rats MH - Rats, Wistar EDAT- 2005/04/15 09:00 MHDA- 2012/06/29 06:00 CRDT- 2005/04/15 09:00 PHST- 2005/04/15 09:00 [pubmed] PHST- 2012/06/29 06:00 [medline] PHST- 2005/04/15 09:00 [entrez] PST - ppublish SO - Sheng Li Xue Bao. 2005 Apr 25;57(2):132-8.