PMID- 8445386 OWN - NLM STAT- MEDLINE DCOM- 19930402 LR - 20071114 IS - 0022-3034 (Print) IS - 0022-3034 (Linking) VI - 24 IP - 2 DP - 1993 Feb TI - Distribution of pluripotent neural crest cells in the embryo and the role of brain-derived neurotrophic factor in the commitment to the primary sensory neuron lineage. PG - 173-84 AB - Many early migratory neural crest cells are pluripotent in the sense that their progeny are able to generate more than one differentiated phenotype (Sieber-Blum and Cohen, 1980, Dev. Biol. 80:95-106; Baroffio, Dupin, and Le Douarin, 1988, Proc. Natl. Acad. Sci. USA 85:5325-5329; Bronner-Fraser and Fraser, 1988, Nature 335:161-164; Sieber-Blum, 1989a, Science 243:1608-1611; Ito and Sieber-Blum, 1991, Dev. Biol. 148:95-106). At trunk levels, the neural crest contains two classes (Sieber-Blum and Cohen, 1980) and at posterior rhombencephalic levels, three different classes of pluripotent cells (Ito and Sieber-Blum, 1991). We investigated cell differentiation by in vitro clonal analysis to determine when in development the pool of pluripotent neural crest cells becomes exhausted. The data suggest that different classes of pluripotent cells, precursor cells with more restricted developmental potentials, and apparently committed cells, exist at sites of advanced migration (posterior branchial arches) and even at target sites of neural crest cell differentiation [posterior branchial arches, dorsal root ganglia (DRG), sympathetic ganglia (SG), and epidermal ectoderm]. Some putative classes of pluripotent cells persist well into the second half of embryonic development. These observations have implications for our understanding of the mechanisms that control neural crest cell migration and differentiation. They support the idea that cues originating from the microenvironment affect differentiation of pluripotent neural crest cells. One such signal appears to be brain-derived neurotrophic factor (BDNF). In the presence of BDNF, but not nerve growth factor (NGF), there is a significant increase in the number of neural crest cells per colony that express a sensory neuron-specific marker. Because this increase is not accompanied by a corresponding increase in the total number of cells per colony, this suggests that BDNF plays a role in cell type specification. FAU - Sieber-Blum, M AU - Sieber-Blum M AD - Department of Cellular Biology and Anatomy, Medical College of Wisconsin, Milwaukee 53226. FAU - Ito, K AU - Ito K FAU - Richardson, M K AU - Richardson MK FAU - Langtimm, C J AU - Langtimm CJ FAU - Duff, R S AU - Duff RS LA - eng GR - HD21423/HD/NICHD NIH 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 - J Neurobiol JT - Journal of neurobiology JID - 0213640 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Nerve Growth Factors) RN - 0 (Nerve Tissue Proteins) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor MH - Cell Differentiation MH - Cells, Cultured MH - Clone Cells MH - Ectoderm/cytology/physiology MH - Embryo, Nonmammalian MH - Ganglia, Spinal/cytology/embryology MH - Nerve Growth Factors/pharmacology MH - Nerve Tissue Proteins/*pharmacology MH - Neural Crest/*cytology/drug effects/*physiology MH - Neurons, Afferent/*cytology/drug effects/physiology MH - Quail MH - Signal Transduction EDAT- 1993/02/01 00:00 MHDA- 1993/02/01 00:01 CRDT- 1993/02/01 00:00 PHST- 1993/02/01 00:00 [pubmed] PHST- 1993/02/01 00:01 [medline] PHST- 1993/02/01 00:00 [entrez] AID - 10.1002/neu.480240205 [doi] PST - ppublish SO - J Neurobiol. 1993 Feb;24(2):173-84. doi: 10.1002/neu.480240205.