Biomaterial Database

Protein growth factor requirements of rat neural crest cells. 1993

P G Bannerman, and D Pleasure

Children's Hospital of Philadelphia, Pennsylvania 19104.

Nascent neural crest cells derived from explanted E12 embryonic rat caudal neural tubes were used as an assay system to investigate the effects of fibroblast growth factors on neural crest cell (NCC) survival, proliferation, migration, and differentiation. In vitro and in vivo all NCC express low affinity nerve growth factor receptors (p75-LNGFR), whereas a subpopulation of NCC expresses the carbohydrate epitope recognized by the monoclonal antibody HNK-1 (Bannerman and Pleasure, manuscript in preparation). Both acidic and basic fibroblast growth factor (FGF) promoted the survival of proportionally greater numbers of p75-LNGF+/HNK-1- than P75-LNGFR+/HNK-1+ NCC. An as yet uncharacterized factor present in neural tube-conditioned medium was also required for NCC survival. Mitosis was frequent in those NCC closest to the neural tube, less so as the cells migrated away. Neither basic nor acidic fibroblast growth factor (FGF) influenced rates of NCC mitosis in either of these locations, nor did these FGFs alter the rate at which nascent NCC migrated away from the neural tube. However, acidic and basic FGFs did delay the differentiation of neural crest derived neurons in the cultures. FGF is abundant in the embryonic rat neural crest outgrowth zone, and the present study strongly supports an essential role for FGF in early development of the mammalian neural crest.

UI	MeSH Term	Description	Entries
D009432	Neural Crest	The two longitudinal ridges along the PRIMITIVE STREAK appearing near the end of GASTRULATION during development of nervous system (NEURULATION). The ridges are formed by folding of NEURAL PLATE. Between the ridges is a neural groove which deepens as the fold become elevated. When the folds meet at midline, the groove becomes a closed tube, the NEURAL TUBE.	Neural Crest Cells,Neural Fold,Neural Groove,Cell, Neural Crest,Cells, Neural Crest,Crest, Neural,Crests, Neural,Fold, Neural,Folds, Neural,Groove, Neural,Grooves, Neural,Neural Crest Cell,Neural Crests,Neural Folds,Neural Grooves
D002454	Cell Differentiation	Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.	Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002455	Cell Division	The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.	M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D002465	Cell Movement	The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.	Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D002470	Cell Survival	The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.	Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004627	Embryonic Induction	The complex processes of initiating CELL DIFFERENTIATION in the embryo. The precise regulation by cell interactions leads to diversity of cell types and specific pattern of organization (EMBRYOGENESIS).	Embryonic Inductions,Induction, Embryonic,Inductions, Embryonic
D005346	Fibroblast Growth Factors	A family of small polypeptide growth factors that share several common features including a strong affinity for HEPARIN, and a central barrel-shaped core region of 140 amino acids that is highly homologous between family members. Although originally studied as proteins that stimulate the growth of fibroblasts this distinction is no longer a requirement for membership in the fibroblast growth factor family.	DNA Synthesis Factor,Fibroblast Growth Factor,Fibroblast Growth Regulatory Factor,Growth Factor, Fibroblast,Growth Factors, Fibroblast
D006133	Growth Substances	Signal molecules that are involved in the control of cell growth and differentiation.	Mitogens, Endogenous,Endogenous Mitogens
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D017077	Culture Media, Conditioned	Culture media containing biologically active components obtained from previously cultured cells or tissues that have released into the media substances affecting certain cell functions (e.g., growth, lysis).	Conditioned Culture Media,Conditioned Culture Medium,Conditioned Media,Conditioned Medium,Culture Medium, Conditioned,Media, Conditioned,Medium, Conditioned