PMID- 35138911 OWN - NLM STAT- MEDLINE DCOM- 20220426 LR - 20220726 IS - 1946-6242 (Electronic) IS - 1946-6234 (Linking) VI - 14 IP - 631 DP - 2022 Feb 9 TI - CRISPR-based gene disruption and integration of high-avidity, WT1-specific T cell receptors improve antitumor T cell function. PG - eabg8027 LID - 10.1126/scitranslmed.abg8027 [doi] AB - T cell receptor (TCR)-based therapy has the potential to induce durable clinical responses in patients with cancer by targeting intracellular tumor antigens with high sensitivity and by promoting T cell survival. However, the need for TCRs specific for shared oncogenic antigens and the need for manufacturing protocols able to redirect T cell specificity while preserving T cell fitness remain limiting factors. By longitudinal monitoring of T cell functionality and dynamics in 15 healthy donors, we isolated 19 TCRs specific for Wilms' tumor antigen 1 (WT1), which is overexpressed by several tumor types. TCRs recognized several peptides restricted by common human leukocyte antigen (HLA) alleles and displayed a wide range of functional avidities. We selected five high-avidity HLA-A*02:01-restricted TCRs, three that were specific to the less explored immunodominant WT1(37-45) and two that were specific to the noncanonical WT1(-78-64) epitopes, both naturally processed by primary acute myeloid leukemia (AML) blasts. With CRISPR-Cas9 genome editing tools, we combined TCR-targeted integration into the TCR alpha constant (TRAC) locus with TCR beta constant (TRBC) knockout, thus avoiding TCRalphabeta mispairing and maximizing TCR expression and function. The engineered lymphocytes were enriched in memory stem T cells. A unique WT1(37-45)-specific TCR showed antigen-specific responses and efficiently killed AML blasts, acute lymphoblastic leukemia blasts, and glioblastoma cells in vitro and in vivo in the absence of off-tumor toxicity. T cells engineered to express this receptor are being advanced into clinical development for AML immunotherapy and represent a candidate therapy for other WT1-expressing tumors. FAU - Ruggiero, Eliana AU - Ruggiero E AUID- ORCID: 0000-0002-2954-8278 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Carnevale, Erica AU - Carnevale E AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Prodeus, Aaron AU - Prodeus A AUID- ORCID: 0000-0002-0719-3891 AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Magnani, Zulma Irene AU - Magnani ZI AUID- ORCID: 0000-0001-7612-6097 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Camisa, Barbara AU - Camisa B AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Merelli, Ivan AU - Merelli I AD - San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. AD - National Research Council, Institute for Biomedical Technologies, Segrate, Italy. FAU - Politano, Claudia AU - Politano C AUID- ORCID: 0000-0003-3471-3722 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Stasi, Lorena AU - Stasi L AUID- ORCID: 0000-0001-8044-2295 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Potenza, Alessia AU - Potenza A AUID- ORCID: 0000-0003-0298-7315 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. AD - School of Medicine and Surgery, Milano-Bicocca University, 20126 Milan, Italy. FAU - Cianciotti, Beatrice Claudia AU - Cianciotti BC AUID- ORCID: 0000-0002-1337-5915 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Manfredi, Francesco AU - Manfredi F AUID- ORCID: 0000-0003-2409-944X AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. AD - Vita-Salute San Raffaele University, 20132 Milan, Italy. FAU - Di Bono, Mattia AU - Di Bono M AUID- ORCID: 0000-0003-4966-111X AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Vago, Luca AU - Vago L AUID- ORCID: 0000-0003-4247-3175 AD - Immunogenetics, Leukemia Genomics and Immunobiology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. AD - Hematology and Bone Marrow Transplantation Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Tassara, Michela AU - Tassara M AUID- ORCID: 0000-0003-3198-5773 AD - Immunohematology and Transfusion Medicine Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Mastaglio, Sara AU - Mastaglio S AD - Hematology and Bone Marrow Transplantation Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Ponzoni, Maurilio AU - Ponzoni M AD - Vita-Salute San Raffaele University, 20132 Milan, Italy. AD - Pathology Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Sanvito, Francesca AU - Sanvito F AUID- ORCID: 0000-0002-4046-8420 AD - Pathology Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Liu, Dai AU - Liu D AUID- ORCID: 0000-0002-7479-2237 AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Balwani, Ishina AU - Balwani I AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Galli, Rossella AU - Galli R AUID- ORCID: 0000-0001-9023-7033 AD - Neural Stem Cell Biology Unit, Division of Neurosciences, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Genua, Marco AU - Genua M AUID- ORCID: 0000-0002-0764-8163 AD - Genomics of the Innate Immune System Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Ostuni, Renato AU - Ostuni R AUID- ORCID: 0000-0003-0460-3426 AD - Vita-Salute San Raffaele University, 20132 Milan, Italy. AD - Genomics of the Innate Immune System Unit, San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Doglio, Matteo AU - Doglio M AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - O'Connell, Daniel AU - O'Connell D AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Dutta, Ivy AU - Dutta I AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Yazinski, Stephanie Ann AU - Yazinski SA AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - McKee, Mark AU - McKee M AUID- ORCID: 0000-0003-1061-915X AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Arredouani, Mohamed Simo AU - Arredouani MS AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Schultes, Birgit AU - Schultes B AUID- ORCID: 0000-0002-2275-3383 AD - Intellia Therapeutics, Cambridge, MA 02139, USA. FAU - Ciceri, Fabio AU - Ciceri F AUID- ORCID: 0000-0003-0873-0123 AD - Vita-Salute San Raffaele University, 20132 Milan, Italy. AD - Hematology and Bone Marrow Transplantation Unit, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. FAU - Bonini, Chiara AU - Bonini C AUID- ORCID: 0000-0002-0772-1674 AD - Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy. AD - Vita-Salute San Raffaele University, 20132 Milan, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220209 PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Antigens, Neoplasm) RN - 0 (Receptors, Antigen, T-Cell) RN - 0 (Receptors, Antigen, T-Cell, alpha-beta) RN - 0 (WT1 Proteins) RN - 0 (WT1 protein, human) SB - IM MH - Antigens, Neoplasm MH - Humans MH - *Leukemia, Myeloid, Acute/genetics/therapy MH - Receptors, Antigen, T-Cell/genetics MH - Receptors, Antigen, T-Cell, alpha-beta/genetics MH - T-Lymphocytes MH - *WT1 Proteins/genetics/metabolism EDAT- 2022/02/10 06:00 MHDA- 2022/04/27 06:00 CRDT- 2022/02/09 17:11 PHST- 2022/02/09 17:11 [entrez] PHST- 2022/02/10 06:00 [pubmed] PHST- 2022/04/27 06:00 [medline] AID - 10.1126/scitranslmed.abg8027 [doi] PST - ppublish SO - Sci Transl Med. 2022 Feb 9;14(631):eabg8027. doi: 10.1126/scitranslmed.abg8027. Epub 2022 Feb 9.