Immune Booster 27: Interferons, JAKs, and STATs with George Stark

Dr. George Stark, a distinguished scientist at the Cleveland Clinic, explores his career trajectory from protein chemistry to pioneering the JAK-STAT signaling pathway. His research reveals that interferon acts as a critical regulator in cancer, where cells maintain a "Goldilocks" balance—producing limited amounts to resist DNA damage while avoiding the growth-inhibitory effects of high concentrations. Beyond traditional signaling, PD-L1 functions intracellularly to modulate this interferon response, identifying CDK5 as a potential therapeutic target to sensitize cancer cells to immune killing. Stark emphasizes that fundamental, curiosity-driven research remains essential for medical breakthroughs. He advocates for fostering collaborative, social environments within laboratories to spark creativity, noting that the most significant scientific insights often emerge from relaxed, human-centered interactions rather than rigid, task-oriented focus.