N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor.
It is known that pigs acted as "mixing vessels" for genesis of a new reassortant influenza strain responsible for pandemic H1N1 2009. However, the host factors driving the evolution of a reassorted virus in pigs to 'jump species' resulting in a human outbreak remain unclear. N-gl...
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oai:doaj.org-article:4d7b0d0eea0d47ba8650098d3af44de02021-11-18T06:59:02ZN-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor.1932-620310.1371/journal.pone.0016302https://doaj.org/article/4d7b0d0eea0d47ba8650098d3af44de02011-02-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21347401/?tool=EBIhttps://doaj.org/toc/1932-6203It is known that pigs acted as "mixing vessels" for genesis of a new reassortant influenza strain responsible for pandemic H1N1 2009. However, the host factors driving the evolution of a reassorted virus in pigs to 'jump species' resulting in a human outbreak remain unclear. N-glycans derived from the porcine respiratory tract were enzymatically released, fluorescent labeled with 2-aminopyridine, separated according to charge, size and hydrophobicity, and structurally identified by a two-dimensional (size and hydrophobicity) HPLC mapping technique and MALDI-TOF mass spectrometry before and after exo-glycosidase digestion. We found a 3-, 5-, and 13-fold increases in NeuAcα2-6, a preferable human influenza receptor, over NeuAcα2-3, an avian influenza receptor, from upper and lower parts of the porcine trachea towards the porcine lung, a major target organ for swine virus replication. The large proportion of NeuAcα2-6 may exert selective pressure for selection of influenza variants with altered receptor preference for this human-type α2-6 receptor, a crucial first step for generating a human pandemic.Nongluk SriwilaijaroenSachiko KondoHirokazu YagiNobuhiro TakemaeTakehiko SaitoHiroaki HiramatsuKoichi KatoYasuo SuzukiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 2, p e16302 (2011) |
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Medicine R Science Q Nongluk Sriwilaijaroen Sachiko Kondo Hirokazu Yagi Nobuhiro Takemae Takehiko Saito Hiroaki Hiramatsu Koichi Kato Yasuo Suzuki N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
description |
It is known that pigs acted as "mixing vessels" for genesis of a new reassortant influenza strain responsible for pandemic H1N1 2009. However, the host factors driving the evolution of a reassorted virus in pigs to 'jump species' resulting in a human outbreak remain unclear. N-glycans derived from the porcine respiratory tract were enzymatically released, fluorescent labeled with 2-aminopyridine, separated according to charge, size and hydrophobicity, and structurally identified by a two-dimensional (size and hydrophobicity) HPLC mapping technique and MALDI-TOF mass spectrometry before and after exo-glycosidase digestion. We found a 3-, 5-, and 13-fold increases in NeuAcα2-6, a preferable human influenza receptor, over NeuAcα2-3, an avian influenza receptor, from upper and lower parts of the porcine trachea towards the porcine lung, a major target organ for swine virus replication. The large proportion of NeuAcα2-6 may exert selective pressure for selection of influenza variants with altered receptor preference for this human-type α2-6 receptor, a crucial first step for generating a human pandemic. |
format |
article |
author |
Nongluk Sriwilaijaroen Sachiko Kondo Hirokazu Yagi Nobuhiro Takemae Takehiko Saito Hiroaki Hiramatsu Koichi Kato Yasuo Suzuki |
author_facet |
Nongluk Sriwilaijaroen Sachiko Kondo Hirokazu Yagi Nobuhiro Takemae Takehiko Saito Hiroaki Hiramatsu Koichi Kato Yasuo Suzuki |
author_sort |
Nongluk Sriwilaijaroen |
title |
N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
title_short |
N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
title_full |
N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
title_fullStr |
N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
title_full_unstemmed |
N-glycans from porcine trachea and lung: predominant NeuAcα2-6Gal could be a selective pressure for influenza variants in favor of human-type receptor. |
title_sort |
n-glycans from porcine trachea and lung: predominant neuacα2-6gal could be a selective pressure for influenza variants in favor of human-type receptor. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2011 |
url |
https://doaj.org/article/4d7b0d0eea0d47ba8650098d3af44de0 |
work_keys_str_mv |
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