IL-23 Recombinant Rabbit mAb (SDT-1563-91)

Interleukin 23 (IL-23) is a heterodimeric cytokine composed of an IL-12B (IL-12p40) subunit (which is shared with IL-12) and an IL-23A (IL-23p19) subunit. IL-23 is part of the IL-12 family of cytokines. IL-23 is mainly secreted by activated dendritic cells, macrophages or monocytes. Innate lymphoid cells and γδ T cells also produce IL-23. B cells produce IL-23 through B cell antigen receptor signaling. Secretion is stimulated by an antigen stimulus recognized by a pattern recognition receptor. IL-23 imbalance and increase is associated with autoimmune diseases and cancer. It is thus a target for therapeutic research. IL-23 expression by dendritic cells is further induced by thymic stromal lymphopoietin, a proallergic cytokine expressed by keratinocytes that is elevated in psoriatic lesions. In the pathogenesis of psoriasis, dermal dendritic cells are stimulated to release IL-23 by nociceptive neurons. IL-23 is also elevated during bacterial meningitis, leading to epithelial dysregulation and inflammation.