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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1991-5-31
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pubmed:abstractText |
The activation of resting B cells with anti-surface Ig is associated with transient increases in intracellular calcium. In the present study, we demonstrate that stimulation of B cells which have already been activated by Staphylococcus aureus Cowan I (Sac), with high molecular weight B cell growth factor (HMW-BCGF) or low molecular weight B cell growth factor (LMW-BCGF), but not IL-2, IL-4, or interferon-gamma, is associated with an increase in intracellular calcium, which is modest compared to that seen with anti-Ig (approximately 100 nM vs approximately 400 nM). The increases in intracellular calcium induced by HMW-BCGF or LMW-BCGF occur in distinct but overlapping subpopulations of B cells. Thus, increases in intracellular calcium in human B cells occur not only upon activation but also upon the induction of proliferation by certain (but not all) B cell growth factors. Presumably, the effect of increasing intracellular calcium during the induction of proliferation is to modify a different group of intracellular molecules than those induced during activation.
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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 |
May
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pubmed:issn |
0008-8749
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
134
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
314-24
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2021972-B-Lymphocyte Subsets,
pubmed-meshheading:2021972-Calcium,
pubmed-meshheading:2021972-Cells, Cultured,
pubmed-meshheading:2021972-Humans,
pubmed-meshheading:2021972-Inositol Phosphates,
pubmed-meshheading:2021972-Interleukin-4,
pubmed-meshheading:2021972-Lymphocyte Activation,
pubmed-meshheading:2021972-Molecular Weight,
pubmed-meshheading:2021972-Receptors, Interleukin-2,
pubmed-meshheading:2021972-Staphylococcus aureus
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pubmed:year |
1991
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pubmed:articleTitle |
Induction of proliferation by high molecular weight B cell growth factor or low molecular weight B cell growth factor is associated with increases in intracellular calcium in different subpopulations of human B lymphocytes.
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pubmed:affiliation |
Washington University School of Medicine, Division of Rheumatology, St. Louis, Missouri 63110.
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pubmed:publicationType |
Journal Article
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