ReviewImmunotherapy

Supercharging adoptive T cell therapy to overcome solid tumor–induced immunosuppression

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Science Translational Medicine  05 Jun 2019:
Vol. 11, Issue 495, eaaw2293
DOI: 10.1126/scitranslmed.aaw2293

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Abstract

The development of new cancer immunotherapies including checkpoint blockade and chimeric antigen receptor (CAR) T cell therapy has revolutionized cancer treatment. CAR T cells have shown tremendous success in certain B cell malignancies, resulting in U.S. Food and Drug Administration (FDA) approval of this approach for certain types of leukemia and lymphoma. However, response rates against solid cancer have been less successful to date. Approaches to modulate the immunosuppressive tumor microenvironment including targeting checkpoint pathways, modulating metabolic pathways, and generating cytokine-producing T cells have led to considerable enhancement of adoptive T cell immunotherapy, first in preclinical models and now in patients. This review provides a discussion of the most recent strategies to enhance the efficacy of CAR T cell antitumor responses in solid cancers.

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