Abstract
Introduction: Guillain–Barré syndrome (GBS) is an immune-mediated inflammatory disorder of the peripheral nervous system (PNS). Experimental autoimmune neuritis (EAN) is a useful animal model for studying GBS. Currently, GBS remains a life-threatening disorder and more effective therapeutic strategies are in urgent need.Areas covered: Accumulating evidence has revealed that T helper (Th) 17 cells and their cytokines are pathogenic in GBS/EAN. Drugs attenuated clinical signs of GBS/EAN, in part, by decreasing Th17 cells or IL-17A. Th17 cells and their cytokines might be potential therapeutic targets. Approaches targeting Th17 cells or their cytokines are in development in treating Th17 cells-involved disorders. In this review, we summarize the up-to-date knowledge on roles of Th17 cells and their cytokines in GBS/EAN, as well potential approaches targeting Th17 cells and their cytokines as clinical applications.Expert opinion: As Th17 cells produce different sets of pro-inflammatory cytokines and Th17-related cytokines are not exclusively produced by Th17 cells, targeting Th17 cell development may be superior to blocking a single Th17 cytokine to treat Th17 cells-involved disorders. Considering the essential role of retinoic acid-related orphan receptor γT (RORγT) and IL-23 in Th17 cell development, RORγT inhibitors or IL-23 antagonists may provide better clinical efficacy in treating GBS/EAN.
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