Biologics may dominate today’s pharmaceutical pipelines, but within that universe, cytokines stand out as some of the most promising—and most challenging—molecules. Interleukins, interferons, tumor necrosis factors, and colony-stimulating factors are already integral to immunotherapy, regenerative medicine, and oncology. From IL-2 and GM-CSF to IL-7 and IL-15, cytokines power therapies that rewire immunity. Yet ask any […]