| Summary: | Interleukin-12 is a heterodimeric cytokine having many family members IL-23, IL-27, IL-35, and recently discovered IL-39, produced by macrophages and dendritic cells. IL-12 is an effector cytokine and engages in anti-tumor and many immunotherapies as IL-12 DNA expression, Th1 helper cells, and natural killer cells. IL-12 stimulates interferon γ (INF-γ) synthesis by the activation of STAT4 which then differentiates the Th1 helper cells with the T-bet transcription, playing an important role in cancer treatment. This review focuses on the role of IL-12 family as an antitumor agent as understanding the biology and molecular mechanism of IL-12 family members is crucial for designing new therapeutic strategies against different cancers.
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