Effective Priming of Herpes Simplex Virus-Specific CD8+T CellsIn VivoDoes Not Require Infected Dendritic Cells
Whitney PG, Makhlouf C, Macleod B, Ma JZ, Gressier E, Greyer M, Hochheiser K, Bachem A, Zaid A, Vöhringer D, Heath WR, Wagle MV, Parish I, Russell TA, Smith SA, Tscharke DC, Gebhardt T, Bedoui S (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 92
Journal Issue: 3
DOI: 10.1128/JVI.01508-17
Abstract
Resolution of virus infections depends on the priming of virus-specific CD8+T cells by dendritic cells (DC). While this process requires major histocompatibility complex (MHC) class I-restricted antigen presentation by DC, the relative contribution to CD8+T cell priming by infected DC is less clear. We have addressed this question in the context of a peripheral infection with herpes simplex virus 1 (HSV). Assessing the endogenous, polyclonal HSV-specific CD8+T cell response, we found that effectivein vivoT cell priming depended on the presence of DC subsets specialized in cross-presentation, while Langerhans cells and plasmacytoid DC were dispensable. Utilizing a novel mouse model that allows for thein vivoelimination of infected DC, we also demonstratedin vivothat this requirement for cross-presenting DC was not related to their infection but instead reflected their capacity to cross-present HSV-derived antigen. Taking the results together, this study shows that infected DC are not required for effective CD8+T cell priming during a peripheral virus infection.IMPORTANCEThe ability of some DC to present viral antigen to CD8+T cells without being infected is thought to enable the host to induce killer T cells even when viruses evade or kill infected DC. However, direct experimentalin vivoproof for this notion has remained elusive. The work described in this study characterizes the role that different DC play in the induction of virus-specific killer T cell responses and, critically, introduces a novel mouse model that allows for the selective elimination of infected DCin vivoOur finding that HSV-specific CD8+T cells can be fully primed in the absence of DC infection shows that cross-presentation by DC is indeed sufficient for effective CD8+T cell priming during a peripheral virus infection.
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APA:
Whitney, P.G., Makhlouf, C., Macleod, B., Ma, J.Z., Gressier, E., Greyer, M.,... Bedoui, S. (2018). Effective Priming of Herpes Simplex Virus-Specific CD8+T CellsIn VivoDoes Not Require Infected Dendritic Cells. Journal of Virology, 92(3). https://dx.doi.org/10.1128/JVI.01508-17
MLA:
Whitney, Paul G., et al. "Effective Priming of Herpes Simplex Virus-Specific CD8+T CellsIn VivoDoes Not Require Infected Dendritic Cells." Journal of Virology 92.3 (2018).
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