GLUT1 overexpression enhances CAR T cell metabolic fitness and anti-tumor efficacy.
Mol Ther
; 32(7): 2393-2405, 2024 Jul 03.
Article
in En
| MEDLINE
| ID: mdl-38720457
ABSTRACT
The tumor microenvironment presents many obstacles to effective chimeric antigen receptor (CAR) T cell therapy, including glucose competition from tumor and myeloid cells. Using mouse models of acute lymphoblastic leukemia (ALL), renal cell carcinoma (RCC), and glioblastoma (GBM), we show that enforced expression of the glucose transporter GLUT1 enhances anti-tumor efficacy and promotes favorable CAR-T cell phenotypes for two clinically relevant CAR designs, 19-28z and IL13Rα2-BBz. In the NALM6 ALL model, 19-28z-GLUT1 promotes T stem cell-like memory formation and prolongs survival. RNA sequencing of these CAR-T cells reveals that the overexpression of GLUT1, but not GLUT3, enriches for genes involved in glycolysis, mitochondrial respiration, and memory precursor phenotypes. Extending these data, 19-28z-GLUT1 CAR-T cells improve tumor control and response to rechallenge in an RCC patient-derived xenograft model. Furthermore, IL13Rα2-BBz CAR-T cells overexpressing GLUT1 prolong the survival of mice bearing orthotopic GBMs and exhibit decreased exhaustion markers. This novel engineering approach can offer a competitive advantage to CAR-T cells in harsh tumor environments where glucose is limiting.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Immunotherapy, Adoptive
/
Xenograft Model Antitumor Assays
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Glucose Transporter Type 1
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Receptors, Chimeric Antigen
Limits:
Animals
/
Humans
Language:
En
Journal:
Mol Ther
Journal subject:
BIOLOGIA MOLECULAR
/
TERAPEUTICA
Year:
2024
Document type:
Article
Affiliation country:
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
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US
/
USA