Nature communications

Using multiple gene edits to create off-the-shelf CAR T-cells targeting EGFR for better treatment of solid tumors

Updated

Abstract

A combination of six gene edits in T-cells may enhance their effectiveness against solid tumors.

  • Chimeric Antigen Receptor (CAR) T-cells have shown strong responses in blood cancers but struggle with solid tumors due to immunosuppressive barriers.
  • The engineered CAR T-cells are designed to resist both biochemical and immunological signaling that inhibits their activity in solid tumors.
  • Gene edits targeting pathways related to allorejection, graft-versus-host disease, and tumor microenvironment barriers were successfully implemented.
  • This approach demonstrated improved anti-tumor efficacy and survival in mouse models with human lung tumors.
  • The strategy may offer a new way to enhance CAR T-cell therapy's potential against solid tumors.

Simplified

Key numbers

67%
Tumor-free Mice Proportion
Proportion of mice treated with TKO T-cells that achieved tumor elimination.
Tumor Volume Reduction
Ratio of TKO T-cell infiltration in tumors compared to control T-cells.

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