Glutamine blockade induces divergent metabolic programs to overcome tumor immune evasion.
Science
; 366(6468): 1013-1021, 2019 11 22.
Article
em En
| MEDLINE
| ID: mdl-31699883
The metabolic characteristics of tumors present considerable hurdles to immune cell function and cancer immunotherapy. Using a glutamine antagonist, we metabolically dismantled the immunosuppressive microenvironment of tumors. We demonstrate that glutamine blockade in tumor-bearing mice suppresses oxidative and glycolytic metabolism of cancer cells, leading to decreased hypoxia, acidosis, and nutrient depletion. By contrast, effector T cells responded to glutamine antagonism by markedly up-regulating oxidative metabolism and adopting a long-lived, highly activated phenotype. These divergent changes in cellular metabolism and programming form the basis for potent antitumor responses. Glutamine antagonism therefore exposes a previously undefined difference in metabolic plasticity between cancer cells and effector T cells that can be exploited as a "metabolic checkpoint" for tumor immunotherapy.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Compostos Azo
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Caproatos
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Imunoterapia Adotiva
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Evasão Tumoral
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Glutamina
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Neoplasias Experimentais
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article