rdf:type |
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lifeskim:mentions |
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pubmed:issue |
4908
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pubmed:dateCreated |
1989-7-13
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pubmed:abstractText |
Cell fusion (syncytium formation) is a major cytopathic effect of infection by human immunodeficiency virus (HIV) and may also represent an important mechanism of CD4+ T-cell depletion in individuals infected with HIV. Syncytium formation requires the interaction of CD4 on the surface of uninfected cells with HIV envelope glycoprotein gp120 expressed on HIV-infected cells. However, several observations suggest that molecules other than CD4 play a role in HIV-induced cell fusion. The leukocyte adhesion receptor LFA-1 is involved in a broad range of leukocyte interactions mediated by diverse receptor-ligand systems including CD4-class II major histocompatibility complex (MHC) molecules. Possible mimicry of class II MHC molecules by gp120 in its interaction with CD4 prompted an examination of the role of LFA-1 in HIV-induced cell fusion. A monoclonal antibody against LFA-1 completely inhibited HIV-induced syncytium formation. The antibody did not block binding of gp120 to CD4. This demonstrates that a molecule other than CD4 is also involved in cell fusion mediated by HIV.
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pubmed:grant |
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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/Antibodies, Monoclonal,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Differentiation,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Differentiation...,
http://linkedlifedata.com/resource/pubmed/chemical/HIV Envelope Protein gp120,
http://linkedlifedata.com/resource/pubmed/chemical/Histocompatibility Antigens Class II,
http://linkedlifedata.com/resource/pubmed/chemical/Lymphocyte Function-Associated...,
http://linkedlifedata.com/resource/pubmed/chemical/Phytohemagglutinins,
http://linkedlifedata.com/resource/pubmed/chemical/Retroviridae Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Viral Envelope Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0036-8075
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
2
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pubmed:volume |
244
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1075-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2543075-Antibodies, Monoclonal,
pubmed-meshheading:2543075-Antigens, Differentiation,
pubmed-meshheading:2543075-Antigens, Differentiation, T-Lymphocyte,
pubmed-meshheading:2543075-Cell Fusion,
pubmed-meshheading:2543075-Cell Line,
pubmed-meshheading:2543075-Cytopathogenic Effect, Viral,
pubmed-meshheading:2543075-HIV,
pubmed-meshheading:2543075-HIV Envelope Protein gp120,
pubmed-meshheading:2543075-Histocompatibility Antigens Class II,
pubmed-meshheading:2543075-Humans,
pubmed-meshheading:2543075-Lymphocyte Function-Associated Antigen-1,
pubmed-meshheading:2543075-Phytohemagglutinins,
pubmed-meshheading:2543075-Retroviridae Proteins,
pubmed-meshheading:2543075-T-Lymphocytes,
pubmed-meshheading:2543075-Viral Envelope Proteins
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pubmed:year |
1989
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pubmed:articleTitle |
Involvement of a leukocyte adhesion receptor (LFA-1) in HIV-induced syncytium formation.
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pubmed:affiliation |
Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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