Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-4-18
pubmed:abstractText
The control of integrin activation is fundamental to an understanding of the integrin-dependent cellular adhesion thought to be important for a plethora of basic cellular functions. Using a cell-cell conjugation assay the role of divalent cations in leucocyte function-associated antigen-1 (LFA-1)-dependent cellular adhesion was further investigated. The conjugation of interleukin-2 (IL-2)-activated lymphocytes to tumour cells was found to be energy dependent and required the presence of various divalent cations, removal of which decreased the level of conjugation. Increased concentrations of calcium, magnesium and manganese ions resulted in a corresponding increase in levels of conjugation. This increase in conjugation was LFA-1 dependent. Interestingly, when calcium ions were first removed from LFA-1, treatment of lymphocytes with magnesium and manganese ions gave significantly higher levels of conjugation than in the presence of calcium. Using a simple displacement study, calcium ions were shown to displace magnesium ions resulting in decreased conjugation. However, calcium ions were unable to displace manganese ions for binding to LFA-1. That manganese was exerting its effect via an LFA-1-dependent mechanism was confirmed using monoclonal antibodies to CD11a which negated the increased conjugation frequency due to manganese.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1346139, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1353063, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1541641, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1695194, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1703161, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1729534, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-1730916, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2144966, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2197333, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2428877, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2434339, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2450126, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2477710, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2479549, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-2530300, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3100481, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3134364, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3265389, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3315233, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3517218, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-3919143, http://linkedlifedata.com/resource/pubmed/commentcorrection/7907574-8473308
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0019-2805
pubmed:author
pubmed:issnType
Print
pubmed:volume
81
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
120-6
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Control of leucocyte function-associated antigen-1-dependent cellular conjugation by divalent cations.
pubmed:affiliation
Department of Surgery (WGH), University of Edinburgh Medical School, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't