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Thrombopoiesis-stimulating factor: its effects on megakaryocyte colony formation in vitro and its relation to human granulocyte-macrophage colony-stimulating factor. 1990

E N Dessypris, and S Chuncharunee, and K E Frierson
Department of Medicine, Veterans Administration Medical Center, Nashville, Tennessee 37212.

The effects of thrombopoiesis-stimulating factor (TSF) on human marrow megakaryocyte colony formation in vitro were studied by the plasma clot method. TSF was found to stimulate megakaryocyte as well as granulocyte-macrophage colony formation in vitro at optimal concentrations of 200-300 pg/ml of medium containing 2.5% horse serum. This colony-stimulating effect of TSF was not affected by polyclonal antibodies to human (h) interleukin 3 (IL-3) or to granulocyte colony-stimulating factor (G-CSF) but was neutralized by monoclonal or polyclonal antibodies to human granulocyte-macrophage colony-stimulating factor (hGM-CSF). In order to differentiate among cross-reactivity between TSF and hGM-CSF, induction of colony growth via release of GM-CSF, and presence of hGM-CSF in TSF preparations, TSF was tested on murine marrow cells, which are not responsive to hGM-CSF. TSF induced growth of murine megakaryocyte colony-forming units (CFU-MK) and granulocyte-macrophage colony-forming units (CFU-GM) in vitro with a dose response similar to that observed on human marrow cells; however, this effect could not be neutralized by antibodies to either human or murine GM-CSF. Using a double-antibody enzyme-linked immunosorbent assay, TSF preparations were found to contain 36 +/- 4 U of hGM-CSF per picogram of TSF protein. These findings indicate that hGM-CSF is responsible for the megakaryocyte colony-promoting effects of TSF on human marrow cells in vitro.

UI MeSH Term Description Entries
D007158 Immunologic Techniques Techniques used to demonstrate or measure an immune response, and to identify or measure antigens using antibodies. Antibody Dissociation,Immunologic Technic,Immunologic Technics,Immunologic Technique,Immunological Technics,Immunological Techniques,Technic, Immunologic,Technics, Immunologic,Technique, Immunologic,Techniques, Immunologic,Antibody Dissociations,Dissociation, Antibody,Dissociations, Antibody,Immunological Technic,Immunological Technique,Technic, Immunological,Technics, Immunological,Technique, Immunological,Techniques, Immunological
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
D008533 Megakaryocytes Very large BONE MARROW CELLS which release mature BLOOD PLATELETS. Megakaryocyte
D001854 Bone Marrow Cells Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells. Bone Marrow Cell,Cell, Bone Marrow,Cells, Bone Marrow,Marrow Cell, Bone,Marrow Cells, Bone
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
D003115 Colony-Stimulating Factors Glycoproteins found in a subfraction of normal mammalian plasma and urine. They stimulate the proliferation of bone marrow cells in agar cultures and the formation of colonies of granulocytes and/or macrophages. The factors include INTERLEUKIN-3; (IL-3); GRANULOCYTE COLONY-STIMULATING FACTOR; (G-CSF); MACROPHAGE COLONY-STIMULATING FACTOR; (M-CSF); and GRANULOCYTE-MACROPHAGE COLONY-STIMULATING FACTOR; (GM-CSF). MGI-1,Macrophage-Granulocyte Inducer,Colony Stimulating Factor,Colony-Stimulating Factor,MGI-1 Protein,Myeloid Cell-Growth Inducer,Protein Inducer MGI,Cell-Growth Inducer, Myeloid,Colony Stimulating Factors,Inducer, Macrophage-Granulocyte,Inducer, Myeloid Cell-Growth,MGI 1 Protein,MGI, Protein Inducer,Macrophage Granulocyte Inducer,Myeloid Cell Growth Inducer
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D006023 Glycoproteins Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins. C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006133 Growth Substances Signal molecules that are involved in the control of cell growth and differentiation. Mitogens, Endogenous,Endogenous Mitogens
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

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