The Possible Pathogenesis of Idiopathic Pulmonary Fibrosis consideringMUC5B

Abstract

Background.Overexpression of the MUC5B protein is associated with idiopathic pulmonary fibrosis (IPF), but little information is available regarding the pathogenic effects and regulatory mechanisms of overexpressed MUC5B in IPF.Main Body.The overexpression of MUC5B in terminal bronchi and honeycomb cysts produces mucosal host defensive dysfunction in the distal airway which may play an important role in the development of IPF. This review addresses the possible association of overexpression ofMUC5B, withMUC5Bpromoter polymorphism,MUC5Bgene epigenetic changes, effects of some transcriptional factors, and inflammatory mediators in IPF. In addition, the associated signaling pathways which may influence the expression ofMUC5Bare also discussed.Conclusion.This work has important implications for further exploration of the mechanisms of overexpression of MUC5B in IPF, and future personalized treatment.