Hydroxypropyl cellulose photocrosslinked hydrogel incorporating IFN-α2b can ensure the activity of IFN-α2b, stably release IFN-α2b to stimulate T cells over a long time, and combined with low-dose radiation of 5 Gy can induce activated T cells into tumor tissue, increasing the immunotherapy effect (165). Here, IFNA2 is linked to neoplasm.