title: Generation of murine hematopoietic precursor cells from macrophage high-proliferative-potential colony-forming cells.
abstract: High-proliferative-potential colony-forming cells (HPP-CFC) have been described as primitive murine macrophage progenitors. We have previously demonstrated the existence of two populations of HPP-CFC: one population, termed HPP-CFC-1, is stimulated by the combination of macrophage colony-stimulating factor (CSF-1) plus haemopoietin-1 (H-1) and actively generates a second population of HPP-CFC, termed HPP-CFC-2. HPP-CFC-2 are stimulated by CSF-1 plus interleukin-3 and generate macrophage CFC that differentiate to form mature macrophages. In this study, we have demonstrated that HPP-CFC-1, when stimulated by CSF-1 plus H-1, generate colony-forming cells (CFC) for the megakaryocyte and granulocyte lineages in addition to HPP-CFC-2 and M-CFC. No CFC were detected with erythroid potential. In addition, HPP-CFC-1 generated cells that formed day-13 spleen colonies, cells that repopulated the bone marrow, cells with platelet-repopulating ability, and cells with erythroid-repopulating ability in lethally irradiated mice. These data support previous data that the HPP-CFC-1 represent a primitive hemopoietic cell population and demonstrate the multipotentiality but not totipotentiality of these cells.
authors.affiliation: Biological Research Unit, Cancer Institute, Melbourne, Victoria, Australia.
authors.forename: I K
authors.initials: IK
authors.lastname: McNiece
authors.forename: N T
authors.initials: NT
authors.lastname: Williams
authors.forename: G R
authors.initials: GR
authors.lastname: Johnson
authors.forename: A B
authors.initials: AB
authors.lastname: Kriegler
authors.forename: T R
authors.initials: TR
authors.lastname: Bradley
authors.forename: G S
authors.initials: GS
authors.lastname: Hodgson
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D002478:Cells, Cultured; D003115:Colony-Stimulating Factors / Q000494:pharmacology; D004921:Erythropoietin / Q000494:pharmacology; D006098:Granulocytes / Q000166:cytology; D006133:Growth Substances / Q000494:pharmacology; D016298:Hematopoietic Cell Growth Factors; D006412:Hematopoietic Stem Cells / Q000145:classification / Q000166:cytology* / Q000187:drug effects; D007377:Interleukin-3 / Q000494:pharmacology; D008264:Macrophages / Q000166:cytology*; D008533:Megakaryocytes / Q000166:cytology; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL
chemical_list: D003115:Colony-Stimulating Factors; D006133:Growth Substances; D016298:Hematopoietic Cell Growth Factors; D007377:Interleukin-3; D004921:Erythropoietin