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Synergy among erythropoietin, interleukin 3, stem cell factor (c-kit ligand) and interferon-gamma on early human hematopoiesis. 1994

Y Kawano, and Y Takaue, and A Hirao, and J Sato, and T Abe, and T Suzue, and S Saito, and Y Okamoto, and Y Kuroda
Department of Pediatrics, University of Tokushima, Japan.

The stimulatory effect of interferon-gamma (IFN-gamma) on human early hematopoiesis was investigated using CD34+ cells that were purified from peripheral blood as a target. In the presence of human interleukin 3 (IL-3) and stem cell factor (SCF), the growth of colony forming units for granulocyte/macrophage (CFU-GM) in serum-free methylcellulose culture was enhanced up to 5.5-fold over baseline colony formation (n = 10, mean +/- SE, 3.18 +/- 1.00) by coculture with 2.5 x 10(3) U/ml IFN-gamma, whereas burst forming units-erythroid (BFU-E) growth induced by additional erythropoietin (Epo) was reduced dose-dependently. Liquid-suspension culture of the target cells for 24 h with IFN-gamma before secondary plating in serum-free methylcellulose resulted in a marked increase in the colony numbers; 3.62 +/- 1.04-fold for CFU-GM and 5.72 +/- 2.32-fold for BFU-E (n = 5). The effect was most striking in the growth of erythroid lineage supported by Epo alone in serum-free culture. Delayed addition of IFN-gamma between days 4 and 7 of methylcellulose culture suppressed CFU-GM growth, but not that of BFU-E. These results suggest that IFN-gamma is an essential cytokine that affects human hematopoiesis and exerts a bimodal effect on stem cell maturation; potentiating or replacing the effect of early-acting cytokines such as SCF or IL-3, and suppressing the growth of matured progenitor cells.

UI MeSH Term Description Entries
D007371 Interferon-gamma The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES. Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
D007377 Interleukin-3 A multilineage cell growth factor secreted by LYMPHOCYTES; EPITHELIAL CELLS; and ASTROCYTES which stimulates clonal proliferation and differentiation of various types of blood and tissue cells. Burst-Promoting Factor, Erythrocyte,Colony-Stimulating Factor 2 Alpha,Colony-Stimulating Factor, Mast-Cell,Colony-Stimulating Factor, Multipotential,Erythrocyte Burst-Promoting Factor,IL-3,Mast-Cell Colony-Stimulating Factor,Multipotential Colony-Stimulating Factor,P-Cell Stimulating Factor,Eosinophil-Mast Cell Growth-Factor,Hematopoietin-2,Burst Promoting Factor, Erythrocyte,Colony Stimulating Factor, Mast Cell,Colony Stimulating Factor, Multipotential,Eosinophil Mast Cell Growth Factor,Erythrocyte Burst Promoting Factor,Hematopoietin 2,Interleukin 3,Multipotential Colony Stimulating Factor,P Cell Stimulating Factor
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D003114 Colony-Forming Units Assay A cytologic technique for measuring the functional capacity of stem cells by assaying their activity. Clonogenic Cell Assay,Stem Cell Assay,Clonogenic Cell Assays,Colony Forming Units Assays,Colony-Forming Units Assays,Stem Cell Assays,Assay, Clonogenic Cell,Assay, Colony-Forming Units,Assay, Stem Cell,Assays, Clonogenic Cell,Assays, Colony-Forming Units,Assays, Stem Cell,Colony Forming Units Assay
D004357 Drug Synergism The action of a drug in promoting or enhancing the effectiveness of another drug. Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D004921 Erythropoietin Glycoprotein hormone, secreted chiefly by the KIDNEY in the adult and the LIVER in the FETUS, that acts on erythroid stem cells of the BONE MARROW to stimulate proliferation and differentiation.
D006410 Hematopoiesis The development and formation of various types of BLOOD CELLS. Hematopoiesis can take place in the BONE MARROW (medullary) or outside the bone marrow (HEMATOPOIESIS, EXTRAMEDULLARY). Hematopoiesis, Medullary,Haematopoiesis,Medullary Hematopoiesis
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015672 Erythroid Precursor Cells The cells in the erythroid series derived from MYELOID PROGENITOR CELLS or from the bi-potential MEGAKARYOCYTE-ERYTHROID PROGENITOR CELLS which eventually give rise to mature RED BLOOD CELLS. The erythroid 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. Burst-Forming Units, Erythroid,Colony-Forming Units, Erythroid,Erythroid Progenitor Cells,Erythropoietic Progenitor Cells,Erythropoietic Stem Cells,Progenitor Cells, Erythropoietic,Stem Cells, Erythroid,BFU-E,CFU-E,BFU E,BFU-Es,Burst Forming Units, Erythroid,Burst-Forming Unit, Erythroid,CFU E,CFU-Es,Cell, Erythroid Precursor,Cell, Erythroid Progenitor,Cell, Erythroid Stem,Cell, Erythropoietic Progenitor,Cell, Erythropoietic Stem,Cells, Erythroid Precursor,Cells, Erythroid Progenitor,Cells, Erythroid Stem,Cells, Erythropoietic Progenitor,Cells, Erythropoietic Stem,Colony Forming Units, Erythroid,Colony-Forming Unit, Erythroid,Erythroid Burst-Forming Unit,Erythroid Burst-Forming Units,Erythroid Colony-Forming Unit,Erythroid Colony-Forming Units,Erythroid Precursor Cell,Erythroid Progenitor Cell,Erythroid Stem Cell,Erythroid Stem Cells,Erythropoietic Progenitor Cell,Erythropoietic Stem Cell,Precursor Cell, Erythroid,Precursor Cells, Erythroid,Progenitor Cell, Erythroid,Progenitor Cell, Erythropoietic,Progenitor Cells, Erythroid,Stem Cell, Erythroid,Stem Cell, Erythropoietic,Stem Cells, Erythropoietic,Unit, Erythroid Burst-Forming,Unit, Erythroid Colony-Forming,Units, Erythroid Burst-Forming,Units, Erythroid Colony-Forming

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