2016
DOI: 10.2500/ajra.2016.30.4263
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Epidermal Growth Factor Receptor Inhibitor Ag1478 Inhibits Mucus Hypersecretion in Airway Epithelium

Abstract: These results indicated that EGFR transactivation plays an important role in mucin and IL-8 secretion from airway epithelial cells. Intranasal instillation of an EGFR tyrosine kinase inhibitor may be a new therapeutic approach for the treatment of upper airway inflammation.

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Cited by 28 publications
(20 citation statements)
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“…We show, in murine models where Tyrphostin AG825 was administered either at the time of inflammatory stimulus or once inflammation was established, an impact on cell number, proinflammatory cytokine production and neutrophil apoptosis, further validating the use of ErbB inhibitors to reduce inflammation. The benefit of EGFR inhibitors in reducing inflammation in ventilator-induced and OVA/LPS-induced lung injury rodent models is shown by others, further supporting the targetting of this pathway in inflammatory disease settings (Bierman et al, 2008; Shimizu et al, 2018; Takezawa et al, 2016).…”
Section: Discussionmentioning
confidence: 61%
“…We show, in murine models where Tyrphostin AG825 was administered either at the time of inflammatory stimulus or once inflammation was established, an impact on cell number, proinflammatory cytokine production and neutrophil apoptosis, further validating the use of ErbB inhibitors to reduce inflammation. The benefit of EGFR inhibitors in reducing inflammation in ventilator-induced and OVA/LPS-induced lung injury rodent models is shown by others, further supporting the targetting of this pathway in inflammatory disease settings (Bierman et al, 2008; Shimizu et al, 2018; Takezawa et al, 2016).…”
Section: Discussionmentioning
confidence: 61%
“…MUC5AC is expressed in increased quantities in CRS . Several investigators have utilized in vitro models of CRS to identify the stimulants causing MUC5AC overexpression . Most recently, Jiao et al studied the effects of Th1, Th2, and Th17 cytokines on MUC5AC expression and mucociliary function.…”
Section: Introductionmentioning
confidence: 99%
“…Experimental studies with EGFR reduces mucus secretion. An EGFR inhibitor AG1478 [N-(3-chlorophenyl)-6,7-dimethoxy-4-quinazolinamine] is effective at inhibiting MUC5AC secretion induced by LPS, TNF-a, or cigarette smoke from human airway epithelial cells in vitro and in cigarette smoke-induced MUC5AC secretion in rats in vivo (Hegab et al, 2007;Takezawa et al, 2016). However, a potent and selective EGFR inhibitor BIBW 2948 given by inhalation for 4 weeks in patients with COPD failed to show any reduction in epithelial mucus, despite evidence for target engagement measured by EGFR internalization (Woodruff et al, 2010).…”
Section: B Receptor Tyrosine Kinase Inhibitorsmentioning
confidence: 99%