Functionally distinct roles for glycosylation of alpha and beta integrin chains in cell-matrix interactions

dc.contributor.authorChammas, Roger
dc.contributor.authorVeiga, Silvio Sanches [UNIFESP]
dc.contributor.authorTravassos, Luiz Rodolpho [UNIFESP]
dc.contributor.authorBrentani, Ricardo Renzo [UNIFESP]
dc.contributor.institutionLUDWIG INST CANC RES
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T11:40:11Z
dc.date.available2016-01-24T11:40:11Z
dc.date.issued1993-03-01
dc.description.abstractLaminin interaction with gp120/140, a B16-F10 laminin-binding protein immunologically related to alpha6beta1 integrin, has been shown to be dependent on oligosaccharides from both ligand and receptor. Lectin analysis of gp120/140 led to the conclusion that this integrin is a sialoglycoprotein bearing mainly complex antennary structures. By means of exoglycosidase treatment, it was possible to identify alpha-galactosyl residues on the integrin alpha chain as the laminin-binding determinants. These residues are involved in cell adhesion to laminin. On the other hand, beta-chain complex antennary structures, whose synthesis could be inhibited by swainsonine, were associated with cell spreading rather than cell adhesion. Thus, it was possible to modulate integrin-mediated cell adhesion and spreading through changes in the glycosylation state of integrin alpha and beta chains.en
dc.description.affiliationLUDWIG INST CANC RES,RUA PROF ANTONIO PRUDENTE 109-4,BR-01509 São Paulo,BRAZIL
dc.description.affiliationESCOLA PAULISTA MED SCH,DISCIPLINA BIOL CELULAR,BR-04023 São Paulo,BRAZIL
dc.description.affiliationUnifespESCOLA PAULISTA MED SCH,DISCIPLINA BIOL CELULAR,BR-04023 São Paulo,BRAZIL
dc.description.sourceWeb of Science
dc.format.extent1795-1799
dc.identifierhttps://dx.doi.org/10.1073/pnas.90.5.1795
dc.identifier.citationProceedings of the National Academy of Sciences of the United States of America. Washington: Natl Acad Sciences, v. 90, n. 5, p. 1795-1799, 1993.
dc.identifier.doi10.1073/pnas.90.5.1795
dc.identifier.issn0027-8424
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/25307
dc.identifier.wosWOS:A1993KP97900035
dc.language.isoeng
dc.publisherNatl Acad Sciences
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of America
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleFunctionally distinct roles for glycosylation of alpha and beta integrin chains in cell-matrix interactionsen
dc.typeinfo:eu-repo/semantics/article
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