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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1986-10-20
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pubmed:abstractText |
Recombinant murine GM-CSF produced in Escherichia coli was purified to homogeneity and tested in parallel with purified native GM-CSF. Both recombinant and native GM-CSF stimulated granulocyte and/or macrophage colony formation by adult and fetal mouse progenitor cells, and with adult marrow cells the specific activity of the recombinant GM-CSF (25 X 10(8) U/mg) was similar to that of the native form (15 X 10(8) U/mg). At high concentrations (greater than 200 U/ml), both forms of GM-CSF also stimulated eosinophil colony formation by adult marrow cells and, at very high concentrations (greater than 800 U/ml), megakaryocyte and some erythroid and mixed-erythroid colony formation. Recombinant GM-CSF was as effective in stimulating the proliferation of the GM-CSF-dependent cell line FD as the native molecule. Both recombinant and native GM-CSF were able to induce partial differentiation in colonies of WEHI-3B myeloid leukemic cells. Recombinant GM-CSF competed effectively for the binding of 125I-labeled native GM-CSF to hemopoietic cells, and antiserum to recombinant GM-CSF also neutralized the biological activity of native GM-CSF. The bacterially synthesized GM-CSF was a slightly more effective stimulus for megakaryocyte colony formation than the native molecule. The demonstration that purified bacterially synthesized GM-CSF is biologically active in vitro now permits studies to be undertaken on the in vivo effects of this material.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-9541
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
421-31
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3528176-Animals,
pubmed-meshheading:3528176-Cell Differentiation,
pubmed-meshheading:3528176-Colony-Forming Units Assay,
pubmed-meshheading:3528176-Colony-Stimulating Factors,
pubmed-meshheading:3528176-DNA,
pubmed-meshheading:3528176-Escherichia coli,
pubmed-meshheading:3528176-Granulocytes,
pubmed-meshheading:3528176-Hematopoietic Stem Cells,
pubmed-meshheading:3528176-Leukemia, Experimental,
pubmed-meshheading:3528176-Macrophages,
pubmed-meshheading:3528176-Mice,
pubmed-meshheading:3528176-Mice, Inbred C57BL,
pubmed-meshheading:3528176-Mice, Inbred CBA,
pubmed-meshheading:3528176-Neoplastic Stem Cells,
pubmed-meshheading:3528176-Recombinant Proteins
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pubmed:year |
1986
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pubmed:articleTitle |
In vitro actions on hemopoietic cells of recombinant murine GM-CSF purified after production in Escherichia coli: comparison with purified native GM-CSF.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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