| progenitor | A precursor, ancestor; one who begets. Origin: L. (05 Mar 2000) |
|---|---|
| progenitor cell | <cell biology> In development a parent cell that gives rise to a distinct cell lineage by a series of cell divisions. (18 Nov 1997) |
| progenitor cell transplant | (stem cell transplant, blood cell transplant): The transplantion of parent cells which may give rise to progeny (daughter cells) which erve more specialised functions. Transplants may be from the peripheral blood or bone marrow. The patient himself/herself may be the donor (autologous transplant), a (genetically) compatible relative or individual (allogeneic transplant). (16 Dec 1997) |
| O 2A progenitor | Bipotential progenitor cells in rat optic nerve that give rise initially to oligodendrocytes and then to type 2 astrocytes. Production of type 2 astrocytes from O 2A progenitor cells in vitro is triggered by ciliary neurotrophic factor (CNTF). (18 Nov 1997) |
|---|---|
| erythroid progenitor cells | Committed, erythroid stem cells derived from myeloid stem cells. The progenitor cells develop in two phases: erythroid burst-forming units (bfu-e) followed by erythroid colony-forming units (cfu-e). Bfu-e differentiate into cfu-e on stimulation by erythropoietin, and then further differentiate into erythroblasts when stimulated by other factors. (12 Dec 1998) |