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Receptor determinants of human and animal influenza virus isolates: Differences in receptor specificity of the H3 hemagglutinin based on species of origin

Identifieur interne : 002583 ( Main/Exploration ); précédent : 002582; suivant : 002584

Receptor determinants of human and animal influenza virus isolates: Differences in receptor specificity of the H3 hemagglutinin based on species of origin

Auteurs : Gary N. Rogers [États-Unis] ; James C. Paulson [États-Unis]

Source :

RBID : ISTEX:C717AC72409AC074561007A829FACA69E6C9BCAC

English descriptors

Abstract

Abstract: The binding of influenza virus to erythrocytes and host cells is mediated by the interaction of the viral hemagglutinin (H) with cell surface receptors containing sialic acid (SA). The specificity of this interaction for 19 human and animal influenza isolates was examined using human erythrocytes enzymatically modified to contain cell surface sialyloligosaccharides with the sequence SAα2,6Galβ1,4GlcNAc; SAα2,3Galβ1,4(3)GlcNAc; SAα2,3Galβ1,3GalNAc; or SAα2,6GalNAc. Although none of the viruses agglutinated cells containing the SAα2,6GalNAc linkage, differential agglutination of cells containing the other three sequences revealed at least three distinct receptor binding types. Several virus isolates exhibited marked receptor specificity, binding only to cells containing the SAα2,6Gal or the SAα2,3Gal linkage, while others bound equally well to cells containing either linkage. Moreover, some viruses could distinguish between two oligosaccharide receptor determinants containing the terminal SAα2,3Gal linkage when present in the SAα2,3Galβ1,4(3)GlcNAc sequence or the SAα2,3Galβ1,3GalNAc sequence binding cells containing only the former. The observed receptor specificities were not significantly influenced by the viral neuraminidases as shown by the use of the potent neuraminidase inhibitor 2-deoxy-2,3-dehydro-N-acetylneuraminic acid. Receptor specificity appeared, to some extent, to be dependent on the species from which the virus was isolated. In particular, human isolates of the H3 serotype all agglutinated cells containing the SAα2,6Gal linkage, but not cells bearing the SAα2,3Galβ1,3GalNAc sequence. In contrast, antigenically similar (H3) isolates from avian and equine species preferentially bound erythrocytes containing the SAα2,3Gal linkage. This is of particular interest in view of the identification of the avian virus H3 hemagglutinin as the progenitor of the H3 hemagglutinin present on the current human Hong Kong viruses.

Url:
DOI: 10.1016/0042-6822(83)90150-2


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<div type="abstract" xml:lang="en">Abstract: The binding of influenza virus to erythrocytes and host cells is mediated by the interaction of the viral hemagglutinin (H) with cell surface receptors containing sialic acid (SA). The specificity of this interaction for 19 human and animal influenza isolates was examined using human erythrocytes enzymatically modified to contain cell surface sialyloligosaccharides with the sequence SAα2,6Galβ1,4GlcNAc; SAα2,3Galβ1,4(3)GlcNAc; SAα2,3Galβ1,3GalNAc; or SAα2,6GalNAc. Although none of the viruses agglutinated cells containing the SAα2,6GalNAc linkage, differential agglutination of cells containing the other three sequences revealed at least three distinct receptor binding types. Several virus isolates exhibited marked receptor specificity, binding only to cells containing the SAα2,6Gal or the SAα2,3Gal linkage, while others bound equally well to cells containing either linkage. Moreover, some viruses could distinguish between two oligosaccharide receptor determinants containing the terminal SAα2,3Gal linkage when present in the SAα2,3Galβ1,4(3)GlcNAc sequence or the SAα2,3Galβ1,3GalNAc sequence binding cells containing only the former. The observed receptor specificities were not significantly influenced by the viral neuraminidases as shown by the use of the potent neuraminidase inhibitor 2-deoxy-2,3-dehydro-N-acetylneuraminic acid. Receptor specificity appeared, to some extent, to be dependent on the species from which the virus was isolated. In particular, human isolates of the H3 serotype all agglutinated cells containing the SAα2,6Gal linkage, but not cells bearing the SAα2,3Galβ1,3GalNAc sequence. In contrast, antigenically similar (H3) isolates from avian and equine species preferentially bound erythrocytes containing the SAα2,3Gal linkage. This is of particular interest in view of the identification of the avian virus H3 hemagglutinin as the progenitor of the H3 hemagglutinin present on the current human Hong Kong viruses.</div>
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