Title |
SUV39H1 Ablation Enhances Long-Term CAR-T Function in Solid Tumors
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Published in |
Cancer Discovery, November 2023
|
DOI | 10.1158/2159-8290.cd-22-1350 |
Pubmed ID | |
Authors |
Sheila Lopez-Cobo, Jaime R. Fuentealba, Paul Gueguen, Pierre-Emmanuel Bonte, Kyriaki Tsalkitzi, Irena Chacon, Salome Glauzy, Armelle Bohineust, Ariane Biquand, Lisseth Silva, Zelia Gouveia, Christel Goudot, Franck Perez, Michael Saitakis, Sebastian Amigorena |
Abstract |
Failure of adoptive T cell therapies in cancer patients is linked to limited T cell expansion and persistence, even in memory-prone 41BB-(BBz)-based chimeric antigen receptor (CAR) T cells. We show here that BBz-CAR T cell stem/memory differentiation and persistence can be enhanced through epigenetic manipulation of the histone 3 lysine 9 tri-methylation (H3K9me3) pathway. Inactivation of the H3K9 tri-methyltransferase SUV39H1 enhances BBz-CAR T cell long-term persistence, protecting mice against tumor relapses and rechallenges in lung and disseminated solid tumor models up to several months after CAR T cell infusion. Single-cell transcriptomic (scRNAseq) and chromatin opening (scATACseq) analyses of tumor infiltrating CAR T cells show early reprogramming into self-renewing, stem-like populations with decreased expression of dysfunction genes in all T cell subpopulations. Therefore, epigenetic manipulation of H3K9 methylation by SUV39H1 optimizes long-term functional persistence of BBz-CAR T cells, limiting relapses and providing protection against tumor rechallenges. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 12 | 46% |
China | 3 | 12% |
Canada | 1 | 4% |
France | 1 | 4% |
Russia | 1 | 4% |
Germany | 1 | 4% |
Unknown | 7 | 27% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 11 | 42% |
Scientists | 10 | 38% |
Science communicators (journalists, bloggers, editors) | 3 | 12% |
Practitioners (doctors, other healthcare professionals) | 2 | 8% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 8 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 2 | 25% |
Unspecified | 1 | 13% |
Student > Ph. D. Student | 1 | 13% |
Student > Doctoral Student | 1 | 13% |
Unknown | 3 | 38% |
Readers by discipline | Count | As % |
---|---|---|
Immunology and Microbiology | 2 | 25% |
Unspecified | 1 | 13% |
Agricultural and Biological Sciences | 1 | 13% |
Biochemistry, Genetics and Molecular Biology | 1 | 13% |
Unknown | 3 | 38% |