Shp-2 Is Dispensable for Establishing T Cell Exhaustion and for PD-1 Signaling In Vivo.

Details

Ressource 1Download: 1-s2.0-S2211124718303553-main.pdf (2226.40 [Ko])
State: Public
Version: Final published version
Serval ID
serval:BIB_695980B27F50
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Shp-2 Is Dispensable for Establishing T Cell Exhaustion and for PD-1 Signaling In Vivo.
Journal
Cell Reports
Author(s)
Rota G., Niogret C., Dang A.T., Barros C.R., Fonta N.P., Alfei F., Morgado L., Zehn D., Birchmeier W., Vivier E., Guarda G.
ISSN
2211-1247 (Electronic)
Publication state
Published
Issued date
2018
Peer-reviewed
Oui
Volume
23
Number
1
Pages
39-49
Language
english
Abstract
In chronic infection and cancer, T cells acquire a dysfunctional state characterized by the expression of inhibitory receptors. In vitro studies implicated the phosphatase Shp-2 downstream of these receptors, including PD-1. However, whether Shp-2 is responsible in vivo for such dysfunctional responses remains elusive. To address this, we generated T cell-specific Shp-2-deficient mice. These mice did not show differences in controlling chronic viral infections. In this context, Shp-2-deleted CD8 <sup>+</sup> T lymphocytes expanded moderately better but were less polyfunctional than control cells. Mice with Shp-2-deficient T cells also showed no significant improvement in controlling immunogenic tumors and responded similarly to controls to α-PD-1 treatment. We therefore showed that Shp-2 is dispensable in T cells for globally establishing exhaustion and for PD-1 signaling in vivo. These results reveal the existence of redundant mechanisms downstream of inhibitory receptors and represent the foundation for defining these relevant molecular events.

Keywords
PD-1, Ptpn11, Shp-2, T cell exhaustion, cancer, checkpoint therapy, chronic infection, inhibitory receptors
Pubmed
Web of science
Open Access
Yes
Create date
12/04/2018 16:28
Last modification date
20/08/2019 14:24
Usage data