Interleukin 23 is a heterodimeric cytokine composed of an IL-12B subunit and an IL-23A subunit. IL-23 is part of the IL-12 family of cytokines. The functional receptor for IL-23 consists of a heterodimer between IL-12Rβ1 and IL-23R. From Wikipedia
Neutralizing IL-23 strengthened T-cell activity in mouse tumors, suggesting a path to test approved inhibitors with therapeutic vaccines.
