Dispatch Biotherapeutics Inc. is taking aim at solid tumors with a new viral vector/antigen technology backed by major industry names such as Arch Venture Partners and Bristol Myers Squibb Co. With offices in Philadelphia and San Francisco, Dispatch has raised $216 million since its founding in 2022. The firm’s platform delivers a cell-specific viral vector carrying a novel, universal antigen called Flare that tags solid, epithelial-derived tumor cells. Acting as a beacon, the Flare antigen directs the immune system to find and clear the cancer cells without harming healthy tissue.