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Li D, Breiman A, le Pendu J, et al. Binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress. Front Microbiol. 2015;6:659doi: 10.3389/fmicb.2015.00659.
Li, D., Breiman, A., le Pendu, J., & Uyttendaele, M. (2015). Binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress. Frontiers in microbiology, 6659. https://doi.org/10.3389/fmicb.2015.00659
Li, Dan, et al. "Binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress." Frontiers in microbiology vol. 6 (2015): 659. doi: https://doi.org/10.3389/fmicb.2015.00659
Li D, Breiman A, le Pendu J, Uyttendaele M. Binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress. Front Microbiol. 2015 Jul 01;6:659. doi: 10.3389/fmicb.2015.00659. eCollection 2015. PMID: 26191052; PMCID: PMC4486850.
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Front Microbiol. 2015 Jul 01;6:659. doi: 10.3389/fmicb.2015.00659. eCollection 2015.

Binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress.

Frontiers in microbiology

Dan Li, Adrien Breiman, Jacques le Pendu, Mieke Uyttendaele

Affiliations

  1. Laboratory of Food Microbiology and Food Preservation, Faculty of Bioscience Engineering, Ghent University Ghent, Belgium.
  2. INSERM, UMR 892 Nantes, France ; CNRS, UMR 6299 Nantes, France ; Faculty of Medicine, University of Nantes Nantes, France ; Nantes University Hospital Nantes, France.
  3. INSERM, UMR 892 Nantes, France ; CNRS, UMR 6299 Nantes, France ; Faculty of Medicine, University of Nantes Nantes, France.

PMID: 26191052 PMCID: PMC4486850 DOI: 10.3389/fmicb.2015.00659

Abstract

This study aims to investigate if histo-blood group antigen (HBGA) expressing bacteria have any protective role on human norovirus (NoV) from acute heat stress. Eleven bacterial strains were included, belonging to Escherichia coli, Enterobacter cloacae, Enterobacter aerogenes, Clostridium difficile, Bifidobacterium adolescentis, and B. longum. HBGA expression of the bacteria as well as binding of human NoV virus-like particles (VLPs, GI.1, and GII.4 strains) to the bacteria were detected by flow cytometry. NoV VLPs pre-incubated with HBGA expressing or non-HBGA expressing bacteria were heated and detected by both direct ELISA and porcine gastric mucin-binding assay. The NoV-binding abilities of the bacteria correlated well with their HBGA expression profiles. Two HBGA expressing E. coli (LMG8223 and LFMFP861, both GI.1 and GII.4 binders) and one non-HBGA expressing E. coli (ATCC8739, neither GI.1 nor GII.4 binder) were selected for the heat treatment test with NoV VLPs. Compared with the same cell numbers of non-HBGA expressing E. coli, the presence of HBGA-expressing E. coli could always maintain higher antigen integrity, as well as mucin-binding ability of NoV VLPs of both GI.1 and GII.4 after heat-treatment at 90°C for 2 min. These results indicate that HBGA-expressing bacteria may protect NoVs during the food processing treatments, thereby facilitating their transmission.

Keywords: bacteria; heat; histo-blood group antigens (HBGAs); norovirus; protection

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