What is IL-9?

IL-9 (Interleukin-9) is a cytokine secreted by Th9 cells, Th2 cells, mast cells, and type 2 innate lymphoid cells (ILC2s). It promotes mast cell growth, allergic inflammation, and mucosal immunity. IL-9 is a key marker for researchers studying allergy, asthma, and immunity to parasitic infection.

Alternative analyte names:Interleukin-9, IL-9, Cytokine P40, T-cell growth factor P40, IL9
Cell types:T cell, Th2, Monocyte/MΦ
Products:Click here to see our portfolio of IL-9 products.