EXTH-49. A NOVEL THERAPEUTIC ANTIBODY TARGETING DIFFUSE MIDLINE GLIOMA
نویسندگان
چکیده
Abstract There is an unmet need to identify novel targeted therapies for H3K27M mutated Diffuse Midline Gliomas. (DMG) Using genetic overexpression and deletion of in model cells we identified high expression CD99 mRNA H3K27M-mutant expressing DIPGs compared other normal brain counterparts. A cell surface antigen screen confirmed that was highly expressed DMG tissues. We then developed a chimeric antibody based on human IgG4 scaffold tested the anti-tumor efficacy this vitro vivo xenografts. Our new (10D1) significantly reduced DIPG tumor proliferation vitro. In intravenous administration orthotopic bearing mice showed complete clearance with prolonged animal survival establishing 10D1 demonstrating its ability crossing blood-brain-pons barrier. Loco-regional 10D1, intratumorally or lateral ventricle, similar effects at concentrations while limiting systemic T cells. combined radiation further prolong xenograft-bearing animals. conclusion, have therapeutic which now development.
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ژورنال
عنوان ژورنال: Neuro-oncology
سال: 2022
ISSN: ['1523-5866', '1522-8517']
DOI: https://doi.org/10.1093/neuonc/noac209.847