Combination of IL-21 and IL-15 Enhances Tumour-specific Cytotoxicity and Cytokine Production of TCR-transduced Primary T Cells
Overview
Oncology
Pharmacology
Authors
Affiliations
IL-21, and to a lesser extent IL-15, inhibits differentiation of antigen-primed CD8 T cells and promotes their homeostasis and anti-tumour activity. Here, we investigated molecular mechanisms behind tumour-specific responses of primary murine T lymphocytes engineered to express a TCR directed against human gp100/HLA-A2 following short-term exposure to IL-15 and/or IL-21. We demonstrated that IL-15 + IL-21, and to a lesser extent IL-21, enhanced antigen-specific T-cell cytotoxicity, which was related to enhanced expression of granzymes A and B, and perforin 1. Furthermore, IL-15 + IL-21 synergistically enhanced release levels and kinetics of T-cell IFNgamma and IL-2, but not IL-10. Enhanced secretion of IFNgamma was accompanied by increased gene expression and cytosolic protein content, and was restricted to effector memory T cells. To summarize, we show that IL-15 + IL-21 improves antigen-specific responses of TCR-transduced effector T cells at multiple levels, which provides a rationale to treat T cells with a combination of these cytokines prior to their use in adoptive TCR gene therapy.
Neoantigen-targeted TCR-engineered T cell immunotherapy: current advances and challenges.
Pang Z, Lu M, Zhang Y, Gao Y, Bai J, Gu J Biomark Res. 2023; 11(1):104.
PMID: 38037114 PMC: 10690996. DOI: 10.1186/s40364-023-00534-0.
TCR-Directed Therapy in the Treatment of Metastatic Uveal Melanoma.
Strobel S, Machiraju D, Hassel J Cancers (Basel). 2022; 14(5).
PMID: 35267523 PMC: 8909175. DOI: 10.3390/cancers14051215.
So Pathogenic or So What?-A Brief Overview of SIV Pathogenesis with an Emphasis on Cure Research.
Kleinman A, Pandrea I, Apetrei C Viruses. 2022; 14(1).
PMID: 35062339 PMC: 8781889. DOI: 10.3390/v14010135.
Bonte S, De Munter S, Billiet L, Goetgeluk G, Ingels J, Jansen H Oncoimmunology. 2021; 10(1):1954800.
PMID: 34367734 PMC: 8312599. DOI: 10.1080/2162402X.2021.1954800.
Zorro M, Aguirre-Gamboa R, Mayassi T, Ciszewski C, Barisani D, Hu S J Autoimmun. 2020; 108:102422.
PMID: 32033836 PMC: 7049906. DOI: 10.1016/j.jaut.2020.102422.