CRISPR-engineered T cells in patients with refractory cancer.
Stadtmauer EA et al.
Science. 2020 Feb 28; 367(6481)
https://doi.org/10.1126/science.aba7365PMID: 32029687CRISPR-Cas9 gene editing provides a powerful tool to enhance the natural ability of human T cells to fight cancer. We report a first-in-human phase 1 clinical trial to test the safety and feasibility of multiplex CRISPR-Cas9 editing to engineer T cells in three patients with refractory cancer. Two genes encoding the endogenous T cell receptor (TCR) chains, TCRα (TRAC) and TCRβ (TRBC), were deleted in T cells to reduce TCR mispairing and to enhance the expression of a synthetic, cancer-specific TCR transgene (NY-ESO-1). Removal of a third gene encoding programmed cell death protein 1 (PD-1; PDCD1), was performed to improve antitumor immunity. Adoptive transfer of engineered T cells into patients resulted in durable engraftment with edits at all three genomic loci. Although chromosomal translocations were detected, the frequency decreased over time. Modified T cells persisted for up to 9 months, suggesting that immunogenicity is minimal under these conditions and demonstrating the feasibility of CRISPR gene editing for cancer immunotherapy.
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
- Stadtmauer EA 1, 2,
- Fraietta JA 2, 3, 4, 5, 6,
- Davis MM 5, 6,
- Cohen AD 7, 2,
- Weber KL 2, 8,
- Lancaster E 9,
- Mangan PA 7,
- Kulikovskaya I 5,
- Gupta M 5,
- Chen F 5,
- Tian L 5,
- Gonzalez VE 5,
- Xu J 5,
- Jung IY 4, 5,
- Melenhorst JJ 3, 5, 6,
- Plesa G 5,
- Shea J 5,
- Matlawski T 5,
- Cervini A 5,
- Gaymon AL 5,
- Desjardins S 5,
- Lamontagne A 5,
- Salas-Mckee J 5,
- Fesnak A 5, 6,
- Siegel DL 5, 6,
- Levine BL 5, 6,
- Jadlowsky JK 5,
- Young RM 5,
- Chew A 5,
- Hwang WT 10,
- Hexner EO 7, 2,
- Carreno BM 3, 5, 6,
- Nobles CL 4,
- Bushman FD 4,
- Parker KR 11,
- Qi Y 12,
- Satpathy AT 11, 12,
- Chang HY 11, 13,
- Zhao Y 5, 6,
- Lacey SF 5, 6,
- June CH 14, 3, 5, 6
Affiliations
- 1 Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. edward.stadtmauer@pennmedicine.upenn.edu cjune@upenn.edu
- 2 Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 3 Parker Institute for Cancer Immunotherapy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 4 Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 5 Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 6 Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 7 Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 8 Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 9 Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 10 Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- 11 Center for Personal Dynamic Regulomes, Stanford University School of Medicine, Stanford, CA, USA
- 12 Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- 13 Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- 14 Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. edward.stadtmauer@pennmedicine.upenn.edu cjune@upenn.edu
This work was supported by:
NIA NIH HHS, United States
GrantID: U01 AG066100
NCI NIH HHS, United States
GrantID: R01 CA120409












