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Targeting of intracellular oncoproteins with peptide-centric CARs

The majority of oncogenic drivers are intracellular proteins, constraining their immunotherapeutic targeting to mutated peptides (neoantigens) presented by individual human leukocyte antigen (HLA) allotypes1. However, most cancers have a modest mutational burden that is insufficient for generating responses using neoantigen-based therapies2,3. Neuroblastoma is a paediatric cancer that harbours few mutations and is instead driven by epigenetically deregulated transcriptional networks4. Here we show that the neuroblastoma immunopeptidome is enriched with peptides derived from proteins essential for tumorigenesis. We focused on targeting the unmutated peptide QYNPIRTTF discovered on HLA-A 24:02, which is derived from the neuroblastoma-dependency gene and master transcriptional regulator PHOX2B. To target QYNPIRTTF, we developed peptide-centric chimeric antigen receptors (PC-CARs) through a counter panning strategy using predicted potentially cross-reactive peptides. We further proposed th ....

Acta Crystallogr , Gtex Consortium , Acids Res , Cancer Res , Retained Display , Mass Spectrom , Therapeutic Antibodies , Antibody Phage Display ,

Myrio Therapeutics and Pure MHC Announce Collaboration to Research and Develop Novel, Targeted Antibody-Based Cancer Therapies

Myrio Therapeutics and Pure MHC Announce Collaboration to Research and Develop Novel, Targeted Antibody-Based Cancer Therapies
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United States , University Of Oklahoma , Kris Looney , William Hildebrand , Pete Smith , Emergent Technologies Inc , University Of Oklahoma Health Science Center , National News , Myrio Therapeutics Pty Ltd , Massachusetts Newswire , Retained Display , Emergent Technologies , Chief Scientist William Hildebrand , Oklahoma Health Science ,

Apr 6, 2022 - Florida Newswire

Apr 6, 2022 - Florida Newswire
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United States , Myrio Therapeutics Pty Ltd , Retained Display ,

Apr 6, 2022 - California Newswire

Apr 6, 2022 - California Newswire
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United States , Myrio Therapeutics Pty Ltd , Retained Display ,