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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6092
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pubmed:dateCreated |
1986-12-30
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pubmed:databankReference | |
pubmed:abstractText |
Proliferation and maturation of antigen-stimulated B cells are regulated by several soluble factors derived from macrophages and T cells. These soluble factors are functionally divided into two groups: B-cell growth factor (BCGF), thought to be involved in B-cell proliferation; and B-cell differentiation factor (BCDF), responsible for maturation of activated B cells into immunoglobulin-secreting cells. This classification needs to be re-examined in the light of the recent cloning of complementary DNA encoding IgG1 induction factor (interleukin-4, IL-4) from the 2.19 mouse T-cell line. Recombinant IL-4 has BCGF and BCDF activities and affects B cells, T cells and mast cells (refs 7, 8; our unpublished data). Another well-characterized B-cell factor is T-cell replacing factor (TRF), which, when secreted by the murine T-cell hybridoma B151K12, is defined by two activities: induction of IgM secretion by BCL1 leukaemic B-cell line; and induction of secondary anti-dinitrophenol (DNP) immunoglobulin G (IgG) synthesis in vitro by DNP-prime B cells. Although TRF from B151K12 was classified as BCDF, purified TRF has BCGF-II activity. To elucidate the molecular properties of TRF we isolated cDNA encoding TRF from the 2.19 T-cell line and report here the structure and multiple activities of this lymphokine.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/DNA Restriction Enzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Growth Substances,
http://linkedlifedata.com/resource/pubmed/chemical/Interleukin-4,
http://linkedlifedata.com/resource/pubmed/chemical/Interleukin-5,
http://linkedlifedata.com/resource/pubmed/chemical/Lymphokines
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pubmed:status |
MEDLINE
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
324
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
70-3
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3024009-Animals,
pubmed-meshheading:3024009-Base Sequence,
pubmed-meshheading:3024009-Cloning, Molecular,
pubmed-meshheading:3024009-DNA,
pubmed-meshheading:3024009-DNA Restriction Enzymes,
pubmed-meshheading:3024009-Growth Substances,
pubmed-meshheading:3024009-Interleukin-4,
pubmed-meshheading:3024009-Interleukin-5,
pubmed-meshheading:3024009-Lymphokines,
pubmed-meshheading:3024009-Mice
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pubmed:articleTitle |
Cloning of complementary DNA encoding T-cell replacing factor and identity with B-cell growth factor II.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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