Targeting REGNASE-1 programs long-lived effector T cells for cancer therapy.
Nature
; 576(7787): 471-476, 2019 12.
Article
em En
| MEDLINE
| ID: mdl-31827283
ABSTRACT
Adoptive cell therapy represents a new paradigm in cancer immunotherapy, but it can be limited by the poor persistence and function of transferred T cells1. Here we use an in vivo pooled CRISPR-Cas9 mutagenesis screening approach to demonstrate that, by targeting REGNASE-1, CD8+ T cells are reprogrammed to long-lived effector cells with extensive accumulation, better persistence and robust effector function in tumours. REGNASE-1-deficient CD8+ T cells show markedly improved therapeutic efficacy against mouse models of melanoma and leukaemia. By using a secondary genome-scale CRISPR-Cas9 screening, we identify BATF as the key target of REGNASE-1 and as a rheostat that shapes antitumour responses. Loss of BATF suppresses the increased accumulation and mitochondrial fitness of REGNASE-1-deficient CD8+ T cells. By contrast, the targeting of additional signalling factors-including PTPN2 and SOCS1-improves the therapeutic efficacy of REGNASE-1-deficient CD8+ T cells. Our findings suggest that T cell persistence and effector function can be coordinated in tumour immunity and point to avenues for improving the efficacy of adoptive cell therapy for cancer.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ribonucleases
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Leucemia
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Imunoterapia Adotiva
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Linfócitos T CD8-Positivos
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Terapia de Alvo Molecular
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Melanoma
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article