IL-20 Protein, Human (HEK293, His)

IL-20 Protein, a pro-inflammatory and angiogenic cytokine predominantly secreted by monocytes and skin keratinocytes, assumes critical roles in immune responses, inflammatory regulation, hemopoiesis, and the differentiation of epidermal cells and keratinocytes. It plays a pivotal part in tissue remodeling and wound-healing processes, contributing to the restoration of epithelial layer homeostasis during infections and inflammatory responses, thereby maintaining tissue integrity. Notably, IL-20 impacts various actin-mediated functions in activated neutrophils, leading to the inhibition of phagocytosis, granule exocytosis, and migration. Its effects are mediated through the type I IL-20 receptor complex, comprising IL20RA and IL20RB, or, alternatively, through the type II IL-20 receptor complex, consisting of IL22RA1 and IL20RB. Functioning as an arteriogenic and vascular remodeling agent, IL-20 activates diverse signaling processes, including the phosphorylation of JAK2 and STAT5, as well as the activation of serine and threonine kinases AKT and ERK1/2. Additionally, it forms a 1:1:1 heterotrimeric complex with its primary high-affinity heterodimeric receptor IL20RA/IL20RB.