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RESEARCH PRODUCT

γδ T cells as a potential tool in colon cancer immunotherapy

Giorgio StassiThiranut RamuttonMatilde TodaroFrancesco DieliSerena MeravigliaSimona Buccheri

subject

Cytotoxicity ImmunologicColorectal cancermedicine.medical_treatmentImmunologyNkg2d ligandsLarge rangeLigandsDownregulation and upregulationT-Lymphocyte SubsetsmedicineHumansImmunology and AllergyIn patientCell-mediated cytotoxicitybusiness.industryReceptors Antigen T-Cell gamma-deltaImmunotherapymedicine.diseaseNKG2Dgamma delta cellcolon cancerOncologyColonic NeoplasmsImmunologyNeoplastic Stem CellsImmunotherapybusiness

description

γδ T cells are capable of recognizing tumor cells and exert potent cellular cytotoxicity against a large range of tumors, including colon cancer. However, tumors utilize numerous strategies to escape recognition or killing by patrolling γδ T cells, such a downregulation of NKG2D ligands, MICA/B and ULBPs. Therefore, the combined upregulation of T-cell receptorand NKG2D ligands on tumor cells and induction of NKG2D expression on γδ T cells may greatly enhance tumor killing and unlock the functions of γδ T cells. Here, we briefly review current data on the mechanisms of γδ T-cell recognition and killing of colon cancer cells and propose that γδ T cells may represent a promising target for the design of novel and highly innovative immunotherapy in patients with colon cancer.

https://doi.org/10.2217/imt.14.59