Highlighting Interleukin-36 Signalling in Plaque Psoriasis and Pustular Psoriasis
DOI:
https://doi.org/10.2340/00015555-2808Keywords:
psoriasis, pustular psoriasis, IL-36, IL-36 receptor, IL-36 receptor antagonist, IL-17, IL-22Abstract
Plaque psoriasis and pustular psoriasis are overlapping, but distinct, disorders. The therapeutic response to biologics supports the pivotal role of the tumour necrosis alpha (TNF-?)/ interleukin (IL)-23/IL-17/IL-22 axis in the pathogenesis of these disorders. Recently, functional activation of the IL-36 receptor (IL-36R) was discovered to be another driving force in the pathogenesis of psoriasis. This was first highlighted by the discovery that a loss-of-function mutation of the IL-36R antagonist (IL-36Ra) causes pustular psoriasis. Although the TNF-?/IL-23/IL-17/IL-22 axis and the functional activation of IL-36R are fundamentally involved in plaque psoriasis and pustular psoriasis, respectively, the 2 pathways are closely related and mutually reinforced, resulting in full-blown clinical manifestations. This review summarizes current topics on how IL-36 agonists (IL-36?, IL-36?, IL-36?) signal IL-36R, the pathological expression of IL-36 agonists and IL-36Ra in plaque and pustular psoriatic lesions, and the cross-talk between the TNF-?/IL-23/IL-17/IL-22 axis and the functional activation of IL-36R in the epidermal milieu.Downloads
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Copyright (c) 2017 Kazuhisa Furue, Kazuhiko Yamamura, Gaku Tsuji, Chikage Mitoma, Hiroshi Uchi, Takeshi Nakahara, Makiko Kido-Nakahara, Takafumi Kadono, Masutaka Furue
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