Shifting the Focus: The Primary Role of IL-23 in Psoriasis and other Inflammatory Disorders

Abstract

Insights into the pathophysiology of autoimmune inflammatory diseases including psoriasis have advanced considerably in recent years, and in parallel, so too have the available treatment options. Current clinical paradigms for the treatment of psoriasis have evolved to include targeted biologic therapies, starting with tumor necrosis factor-alpha (TNF-α) inhibitors and later, agents targeting interleukin (IL)-12/23 and IL-17. The most recent evidence suggests that IL-23 might be an even more potent target for the effective treatment of psoriasis and other autoimmune inflammatory disorders. This review will describe recent developments leading to the current understanding of the key role of IL-23 as a 'master regulator' of autoimmune inflammation, and the clinical evidence for agents that specifically target this modulator in the context of treating psoriasis, spondyloarthropathy, and inflammatory bowel disease.

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