TCR² Therapeutics Presents Preclinical Data on IL-15 Enhanced TRuCs at AACR Virtual Special Conference on Tumor Immunology & Immunotherapy

By Dr. Matthew Watson

CAMBRIDGE, Mass., Oct. 05, 2021 (GLOBE NEWSWIRE) -- TCR2 Therapeutics Inc. (Nasdaq: TCRR), a clinical-stage cell therapy company with a pipeline of novel T cell therapies for patients suffering from cancer, today announced the e-poster presentation of new preclinical data at the American Association for Cancer Research (AACR) Virtual Special Conference on Tumor Immunology and Immunotherapy, taking place October 5-6, 2021. The e-poster titled “Expression of an IL-15 Receptor Fusion Protein Enhances the Persistence of TRuC-T Cells” highlights preclinical data on the Company’s proprietary mesothelin-directed T Cell Receptor Fusion Construct (TRuC®) T cells that express IL-15-based enhancements as a strategy for improving T cell persistence. The co-expression of these IL-15 enhancements enriched for naïve and central memory T cells, upregulated the stemness-associated transcription factor TCF-1 and increased TRuC-T cell proliferation upon repeated stimulation with mesothelin-expressing cancer cell lines. In addition, IL-15 promoted the survival of TRuC-T cells in the absence of T cell receptor (TCR) or exogenous cytokine stimulation. In a mesothelioma xenograft mouse model, IL-15 co-expression resulted in a higher number of TRuC-T cells in the tumor and significantly increased their persistence in peripheral blood. The administration of a single dose of IL-15 enhanced TRuC-T cells cleared tumors in all mice and fully protected them from tumor rechallenge.

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TCR² Therapeutics Presents Preclinical Data on IL-15 Enhanced TRuCs at AACR Virtual Special Conference on Tumor Immunology & Immunotherapy

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