In modern biopharmaceutical manufacturing, downstream processing development has become one of the most critical and resource-intensive stages. While upstream cell culture or fermentation...
Interleukin-21 (IL-21) is a member of the common γ-chain (γc) cytokine family, alongside IL-2, IL-4, IL-7, IL-9, and IL-15. While structurally modest, IL-21 exerts profound effects across both...