Journal article
Protective role for the N-terminal domain of α-dystroglycan in Influenza A virus proliferation
Proceedings of the National Academy of Sciences - PNAS, Vol.116(23), pp.11396-11401
06/04/2019
DOI: 10.1073/pnas.1904493116
PMCID: PMC6561248
PMID: 31097590
Abstract
α-Dystroglycan (α-DG) is a highly glycosylated basement membrane receptor that is cleaved by the proprotein convertase furin, which releases its N-terminal domain (α-DGN). Before cleavage, α-DGN interacts with the glycosyltransferase LARGE1 and initiates functional O-glycosylation of the mucin-like domain of α-DG. Notably, α-DGN has been detected in a wide variety of human bodily fluids, but the physiological significance of secreted α-DGN remains unknown. Here, we show that mice lacking α-DGN exhibit significantly higher viral titers in the lungs after Influenza A virus (IAV) infection (strain A/Puerto Rico/8/1934 H1N1), suggesting an inability to control virus load. Consistent with this, overexpression of α-DGN before infection or intranasal treatment with recombinant α-DGN prior and during infection, significantly reduced IAV titers in the lungs of wild-type mice. Hemagglutination inhibition assays using recombinant α-DGN showed in vitro neutralization of IAV. Collectively, our results support a protective role for α-DGN in IAV proliferation.
Details
- Title: Subtitle
- Protective role for the N-terminal domain of α-dystroglycan in Influenza A virus proliferation
- Creators
- Jessica C de Greef - Department of Neurology, The University of Iowa, Iowa City, IA 52242Bram Slütter - Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA 52242Mary E Anderson - Department of Neurology, The University of Iowa, Iowa City, IA 52242Rebecca Hamlyn - Department of Neurology, The University of Iowa, Iowa City, IA 52242Raul O'Campo Landa - Department of Neurology, The University of Iowa, Iowa City, IA 52242Ellison J McNutt - Department of Neurology, The University of Iowa, Iowa City, IA 52242Yuji Hara - Department of Neurology, The University of Iowa, Iowa City, IA 52242Lecia L Pewe - Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA 52242David Venzke - Department of Neurology, The University of Iowa, Iowa City, IA 52242Kiichiro Matsumura - Department of Neurology, Teikyo University School of Medicine, 173-8605 Tokyo, JapanFumiaki Saito - Department of Neurology, Teikyo University School of Medicine, 173-8605 Tokyo, JapanJohn T Harty - Department of Pathology, The University of Iowa, Iowa City, IA 52242Kevin P Campbell - Department of Neurology, The University of Iowa, Iowa City, IA 52242
- Resource Type
- Journal article
- Publication Details
- Proceedings of the National Academy of Sciences - PNAS, Vol.116(23), pp.11396-11401
- DOI
- 10.1073/pnas.1904493116
- PMID
- 31097590
- PMCID
- PMC6561248
- NLM abbreviation
- Proc Natl Acad Sci U S A
- ISSN
- 0027-8424
- eISSN
- 1091-6490
- Publisher
- National Academy of Sciences; United States
- Grant note
- R01 AI114543 / NIAID NIH HHS U54 NS053672 / NINDS NIH HHS R01 AI042767 / NIAID NIH HHS Howard Hughes Medical Institute
- Language
- English
- Date published
- 06/04/2019
- Academic Unit
- Neurology; Molecular Physiology and Biophysics; Pathology; Iowa Neuroscience Institute
- Record Identifier
- 9984068278602771
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