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Publication : Yap suppresses T-cell function and infiltration in the tumor microenvironment.

First Author  Stampouloglou E Year  2020
Journal  PLoS Biol Volume  18
Issue  1 Pages  e3000591
PubMed ID  31929526 Mgi Jnum  J:284070
Mgi Id  MGI:6389217 Doi  10.1371/journal.pbio.3000591
Citation  Stampouloglou E, et al. (2020) Yap suppresses T-cell function and infiltration in the tumor microenvironment. PLoS Biol 18(1):e3000591
abstractText  A major challenge for cancer immunotherapy is sustaining T-cell activation and recruitment in immunosuppressive solid tumors. Here, we report that the levels of the Hippo pathway effector Yes-associated protein (Yap) are sharply induced upon the activation of cluster of differentiation 4 (CD4)-positive and cluster of differentiation 8 (CD8)-positive T cells and that Yap functions as an immunosuppressive factor and inhibitor of effector differentiation. Loss of Yap in T cells results in enhanced T-cell activation, differentiation, and function, which translates in vivo to an improved ability for T cells to infiltrate and repress tumors. Gene expression analyses of tumor-infiltrating T cells following Yap deletion implicates Yap as a mediator of global T-cell responses in the tumor microenvironment and as a negative regulator of T-cell tumor infiltration and patient survival in diverse human cancers. Collectively, our results indicate that Yap plays critical roles in T-cell biology and suggest that Yap inhibition improves T-cell responses in cancer.
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