Neuroblastoma, an aggressive malignancy originating from neural crest cells, accounts for 15% of cancer-related deaths in children. Treatment strategies include systemic chemotherapy, radiation or immunotherapy with anti-GD2 antibodies, all with severe side effects and long-term toxicity. Retinoic acid (RA) has been shown to promote neuroblastoma growth inhibition while suppressing MYCN oncogene expression. However, its effect is reversible, and tumor regrowth may occur.
Researchers from Vicero Inc. have developed a Vincobody platform, which allows for design of novel proprietary VHH antibody fragments that possess the efficacy of dual checkpoint blockade while mitigating the toxicity limitations of current monoclonal antibody therapies.
Combining the direct cytotoxic effects of antibody-drug conjugates (ADCs) with the immune-enhancing properties of immunostimulators represents a new therapeutic strategy that could not only eradicate tumor cells, but also reprogram the tumor microenvironment, leading to durable and systemic anticancer immunity. Using this new approach, researchers from Bioray Pharmaceutical Co. Ltd. developed and characterized of a new dual drug ADC (BiADC), named BR-113, designed to target human (h)Trop2.
