pubmed-article:1979172 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C0027950 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1383501 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1136310 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C0333516 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1366562 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1996904 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C0596235 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1880497 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C0851827 | lld:lifeskim |
pubmed-article:1979172 | lifeskim:mentions | umls-concept:C1701901 | lld:lifeskim |
pubmed-article:1979172 | pubmed:issue | 23 | lld:pubmed |
pubmed-article:1979172 | pubmed:dateCreated | 1991-1-16 | lld:pubmed |
pubmed-article:1979172 | pubmed:abstractText | We have recently been able to correlate closely the "spontaneous" oscillatory activity of cytosolic free Ca2+ in adherent human neutrophils with the ability of tumor necrosis factor (TNF) to induce secretion of granule proteins from these cells. In the present work we show with a single-cell technique that preincubation of human neutrophils with antibodies to CD18, the common beta chain of leukocyte adhesion proteins, inhibits TNF-induced secretion of lactoferrin in a time- and concentration-dependent manner. Similar effects of CD18 antibodies were found on chemotactic factor (fMet-Leu-Phe)- but not on phorbol 12-myristate 13-acetate-induced secretion, suggesting that cell-surface-receptor-mediated secretion is dependent on integrin-associated signals. Similarly, antibodies to CD11b (alpha chain of macrophage 1) also inhibited TNF- and fMet-Leu-Phe- but not phorbol 12-myristate 13-acetate-stimulated release of lactoferrin. Antibodies to CD11a (alpha chain of lymphocyte function-associated antigen 1) or CD11c (alpha chain of p150,95) had only a minimal effect on agonist-induced secretion. Data obtained in several laboratories, including our own, made us suspect that integrin interaction with the surface is responsible for the oscillatory activity of cytosolic free Ca2+ in adherent cells. Indeed, preincubation with antibodies to either CD18 or CD11b, but not to CD11c, inhibited the oscillations of cytosolic free Ca2+ in adherent neutrophils. This inhibitory effect was evident both as a reduction of the number of responding cells and as a reduction of the oscillatory activity in the cells. In conclusion, the oscillatory activity of cytosolic free Ca2+ in adherent neutrophils is mediated through the CD18/CD11b integrins. The generation of this Ca2+ signal may explain how adherence, by way of the integrins, changes the functional properties of the cell and enables TNF to induce secretion. | lld:pubmed |
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pubmed-article:1979172 | pubmed:language | eng | lld:pubmed |
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pubmed-article:1979172 | pubmed:citationSubset | IM | lld:pubmed |
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pubmed-article:1979172 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:1979172 | pubmed:month | Dec | lld:pubmed |
pubmed-article:1979172 | pubmed:issn | 0027-8424 | lld:pubmed |
pubmed-article:1979172 | pubmed:author | pubmed-author:OlssonII | lld:pubmed |
pubmed-article:1979172 | pubmed:author | pubmed-author:RichterJJ | lld:pubmed |
pubmed-article:1979172 | pubmed:author | pubmed-author:AnderssonTT | lld:pubmed |
pubmed-article:1979172 | pubmed:author | pubmed-author:Ng-SikorskiJJ | lld:pubmed |
pubmed-article:1979172 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:1979172 | pubmed:volume | 87 | lld:pubmed |
pubmed-article:1979172 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:1979172 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:1979172 | pubmed:pagination | 9472-6 | lld:pubmed |
pubmed-article:1979172 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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pubmed-article:1979172 | pubmed:year | 1990 | lld:pubmed |
pubmed-article:1979172 | pubmed:articleTitle | Tumor necrosis factor-induced degranulation in adherent human neutrophils is dependent on CD11b/CD18-integrin-triggered oscillations of cytosolic free Ca2+. | lld:pubmed |
pubmed-article:1979172 | pubmed:affiliation | Department of Medicine, University Hospital, Lund, Sweden. | lld:pubmed |
pubmed-article:1979172 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:1979172 | pubmed:publicationType | In Vitro | lld:pubmed |
pubmed-article:1979172 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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