Epitope mapping and kinetics of CD4 T cell immunity to pneumonia virus of mice in the C57BL/6 strain

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Epitope mapping and kinetics of CD4 T cell immunity to pneumonia virus of mice in the C57BL/6 strain

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Title: Epitope mapping and kinetics of CD4 T cell immunity to pneumonia virus of mice in the C57BL/6 strain
Author: Vandersarren, Lana; Bosteels, Cedric; Vanheerswynghels, Manon; Moon, James J.; Easton, Andrew J.; Van Isterdael, Gert; Janssens, Sophie; Lambrecht, Bart N.; van Helden, Mary J.

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Citation: Vandersarren, Lana, Cedric Bosteels, Manon Vanheerswynghels, James J. Moon, Andrew J. Easton, Gert Van Isterdael, Sophie Janssens, Bart N. Lambrecht, and Mary J. van Helden. 2017. “Epitope mapping and kinetics of CD4 T cell immunity to pneumonia virus of mice in the C57BL/6 strain.” Scientific Reports 7 (1): 3472. doi:10.1038/s41598-017-03042-y. http://dx.doi.org/10.1038/s41598-017-03042-y.
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Abstract: Pneumonia virus of mice (PVM) infection has been widely used as a rodent model to study the closely related human respiratory syncytial virus (hRSV). While T cells are indispensable for viral clearance, they also contribute to immunopathology. To gain more insight into mechanistic details, novel tools are needed that allow to study virus-specific T cells in C57BL/6 mice as the majority of transgenic mice are only available on this background. While PVM-specific CD8 T cell epitopes were recently described, so far no PVM-specific CD4 T cell epitopes have been identified within the C57BL/6 strain. Therefore, we set out to map H2-IAb-restricted epitopes along the PVM proteome. By means of in silico prediction and subsequent functional validation, we were able to identify a MHCII-restricted CD4 T cell epitope, corresponding to amino acids 37–47 in the PVM matrix protein (M37–47). Using this newly identified MHCII-restricted M37–47 epitope and a previously described MHCI-restricted N339–347 epitope, we generated peptide-loaded MHCII and MHCI tetramers and characterized the dynamics of virus-specific CD4 and CD8 T cell responses in vivo. The findings of this study can provide a basis for detailed investigation of T cell-mediated immune responses to PVM in a variety of genetically modified C57BL/6 mice.
Published Version: doi:10.1038/s41598-017-03042-y
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5471230/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:33490866
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