Neoantigen-Specific Adoptive Cell Therapies for Cancer: Making T-Cell Products More Personal.

Frontiers in Immunology
Valentina BianchiGeorge Coukos

Abstract

Mutation-derived neoantigens are taking central stage as a determinant in eliciting effective antitumor immune responses following adoptive T-cell therapies. These mutations are patient-specific, and their targeting calls for highly personalized pipelines. The promising clinical outcomes of tumor-infiltrating lymphocyte (TIL) therapy have spurred interest in generating T-cell infusion products that have been selectively enriched in neoantigen (or autologous tumor) reactivity. The implementation of an isolation step, prior to T-cell in vitro expansion and reinfusion, may provide a way to improve the overall response rates achieved to date by adoptive T-cell therapies in metastatic cancer patients. Here we provide an overview of the main technologies [i.e., peptide major histocompatibility complex (pMHC) multimers, cytokine capture, and activation markers] to enrich infiltrating or circulating T-cells in predefined neoantigen specificities (or tumor reactivity). The unique technical and regulatory challenges faced by such highly specialized and patient-specific manufacturing T-cell platforms are also discussed.

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Citations

Dec 21, 2020·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Mohamed-Elamir F HegazyThomas Efferth
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Methods Mentioned

BETA
fluorescence-activated cell sorting
peptide exchange
FACS
biopsies
surgical resections

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