Hb F production of endogenous colonies of polycythemia vera. 1979

T Papayannopoulou, and J Buckley, and B Nakamoto, and S Kurachi, and P E Nute, and G Stamatoyannopoulos

Fetal hemoglobin was studied in endogenous colonies produced in plasma clot and methylcellulose cultures of circulating progenitors from patients with polycythemia vera (PV). Analysis of globin chain synthesis showed that gamma chains constituted from 13% to 42% of the non-alpha chains produced in cultured cells, whereas from 27% to over 50% of the endogenous colonies contained Hb F, as indicated by the fluorescent antibody probe. Since the endogenous colonies in PV cultures originate from the abnormal PV clone, the findings provide direct evidence that a single pluripotent stem cell can have committed progeny that differ in their expressions of the Hb F production program.

UI MeSH Term Description Entries
D011087 Polycythemia Vera A myeloproliferative disorder of unknown etiology, characterized by abnormal proliferation of all hematopoietic bone marrow elements and an absolute increase in red cell mass and total blood volume, associated frequently with splenomegaly, leukocytosis, and thrombocythemia. Hematopoiesis is also reactive in extramedullary sites (liver and spleen). In time myelofibrosis occurs. Erythremia,Osler-Vaquez Disease,Polycythemia Rubra Vera,Polycythemia Ruba Vera,Primary Polycythemia,Disease, Osler-Vaquez,Erythremias,Osler Vaquez Disease,Polycythemia Ruba Veras,Polycythemia Rubra Veras,Polycythemia, Primary,Polycythemias, Primary,Primary Polycythemias,Ruba Vera, Polycythemia,Ruba Veras, Polycythemia,Vera, Polycythemia Ruba,Vera, Polycythemia Rubra,Veras, Polycythemia Ruba,Veras, Polycythemia Rubra
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
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D005319 Fetal Hemoglobin The major component of hemoglobin in the fetus. This HEMOGLOBIN has two alpha and two gamma polypeptide subunits in comparison to normal adult hemoglobin, which has two alpha and two beta polypeptide subunits. Fetal hemoglobin concentrations can be elevated (usually above 0.5%) in children and adults affected by LEUKEMIA and several types of ANEMIA. Hemoglobin F,Hemoglobin, Fetal
D005455 Fluorescent Antibody Technique Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy. Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D005914 Globins A superfamily of proteins containing the globin fold which is composed of 6-8 alpha helices arranged in a characterstic HEME enclosing structure. Globin
D006441 Hemoglobin A Normal adult human hemoglobin. The globin moiety consists of two alpha and two beta chains.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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