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Unlocking the Potential of Allogeneic Vδ2 T Cells for Ovarian Cancer Therapy through CD16 Biomarker Selection and CAR/IL-15 Engineering

ABSTRACT: Allogeneic Vγ9Vδ2 (Vδ2) T cells are attractive candidates in the development of cancer therapies due to their demonstrated safety in allogeneic settings and innate ability to fight tumors. However, the limited clinical success of Vδ2 T cell-based treatments may be attributed to donor variability, short-lived persistence, and tumor evasion. To address these limitations, we have generated Vδ2 T cells with improved properties. By utilizing CD16 as a donor selection biomarker, we have generated Vδ2 T cells with high levels of cytotoxicity and potent antibody-dependent cell-mediated cytotoxicity (ADCC) function, and RNA sequencing characterization supports the increased effector function of Vδ2 T cells obtained from CD16 high (CD16Hi) donors. Further improvement was achieved through CAR and IL-15 engineering techniques. Preclinical studies in two ovarian cancer models showed that engineered CD16Hi Vδ2 T cells are both effective and safe, targeting tumors through multiple mechanisms, exhibiting long-term persistence in vivo, and not causing graft-versus-host disease. These findings support the potential of engineered CD16Hi Vδ2 T cells as a viable cancer therapy option.

ORGANISM(S): Homo sapiens

PROVIDER: GSE235755 | GEO | 2023/06/29

REPOSITORIES: GEO

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Exhausted intratumoral Vδ2- γδ T cells in human kidney cancer retain effector function [scRNA-seq]

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2023-01-31 | GSE223808 | GEO

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