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Shotgun glycomics of pig lung identifies natural endogenous receptors for influenza viruses

Identifieur interne : 000667 ( Main/Exploration ); précédent : 000666; suivant : 000668

Shotgun glycomics of pig lung identifies natural endogenous receptors for influenza viruses

Auteurs : Lauren Byrd-Leotis ; Renpeng Liu ; Konrad C. Bradley ; Yi Lasanajak ; Sandra F. Cummings ; Xuezheng Song ; Jamie Heimburg-Molinaro ; Summer E. Galloway ; Marie R. Culhane ; David F. Smith ; David A. Steinhauer ; Richard D. Cummings

Source :

RBID : PMC:4050609

Abstract

Significance

Studies using novel “shotgun glycan microarray” technology identify, for the first time to our knowledge, the endogenous receptors for influenza viruses from a natural host, the pig. Libraries of total N-glycans from pig lung were probed for binding properties using a panel of influenza viruses isolated from humans, birds, and swine. Natural glycan receptors were identified for all viruses examined, and although some displayed the rather broad α2,3 or α2,6 sialic acid linkage specificity conventionally associated with avian or human viruses, other strains were highly specific, revealing a complexity that has not been demonstrated previously. Because pigs are often implicated as intermediate hosts for pandemic viruses, these results and the approaches described will transform our understanding of influenza host range, transmission, and pathogenicity.


Url:
DOI: 10.1073/pnas.1323162111
PubMed: 24843157
PubMed Central: 4050609


Affiliations:


Links toward previous steps (curation, corpus...)


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<p>Studies using novel “shotgun glycan microarray” technology identify, for the first time to our knowledge, the endogenous receptors for influenza viruses from a natural host, the pig. Libraries of total N-glycans from pig lung were probed for binding properties using a panel of influenza viruses isolated from humans, birds, and swine. Natural glycan receptors were identified for all viruses examined, and although some displayed the rather broad α2,3 or α2,6 sialic acid linkage specificity conventionally associated with avian or human viruses, other strains were highly specific, revealing a complexity that has not been demonstrated previously. Because pigs are often implicated as intermediate hosts for pandemic viruses, these results and the approaches described will transform our understanding of influenza host range, transmission, and pathogenicity.</p>
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