Immunoproteasome subunit deficiencies impact differentially on two immunodominant influenza virus-specific CD8+ T cell responses.

Abstract

Primary CD8+ T cell (T(CD8+)) responses to viruses are directed toward multiple Ags and shaped by both the level of Ag presentation and the underlying Ag-specific T(CD8+) repertoire. The relative importance of these factors in deciding the hierarchy of T(CD8+) responses and how they are influenced by the immunoproteasome are not well understood. Using an influenza infection model in mice deficient in various immunoproteasome subunits, we observe that Ag presentation and T(CD8+) repertoire are altered in an epitope-specific and immunoproteasome subunit-dependent manner. More importantly, we find that the level of Ag presentation and the extent of the underlying repertoire can work either alone or in concert to determine definitively the magnitude of the individual T(CD8+) responses and hence the overall T(CD8+) hierarchy. Together, these results provide a clearer understanding of how immunodominance hierarchies are established.

7 Figures and Tables

02040602008200920102011201220132014201520162017
Citations per Year

176 Citations

Semantic Scholar estimates that this publication has 176 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Pang2006ImmunoproteasomeSD, title={Immunoproteasome subunit deficiencies impact differentially on two immunodominant influenza virus-specific CD8+ T cell responses.}, author={Ken C. Pang and Megan T Sanders and John J. Monaco and Peter Doherty and Stephen J. Turner and Weisan Chen}, journal={Journal of immunology}, year={2006}, volume={177 11}, pages={7680-8} }