dehydroxymethylepoxyquinomicin and Rhinitis

NF-ĸB is an essential transcription factor strongly associated to inflammatory response in chronic rhinosinusitis with nasal polyps (CRSwNP). DHMEQ is a NF-ĸB inhibitor that has been previously described with a greatpotential indecreasing inflammation in diseases other than CRSwNP. The aim of study isto evaluate the ability of DHMEQ to reducethe inflammatory recruiters on CRSwNP and to compare its anti-inflammatory profile as a single-agent or in association with fluticasone propionate (FP).. nasal polyp fibroblasts were cultured in TNF-α enriched media. Cells were submitted to three different concentrations (1, 10 and 100nM) of either FP, DHMEQ or both. Inflammatory response was accessed by VCAM-1, ICAM-1 and RANTES expression (by RTQ-PCR) and protein levels by ELISA. Nuclear translocation of NF-ĸB was also evaluated.. both FP and DHMEQ inhibited inflammatory recruiters' production and NF-ĸB nuclear translocation. Interestingly, the anti-inflammatory effect from the association steroids plus DHMEQ was more intense than of each drug in separate.. DHMEQ seems efficient in modulating the inflammatory process in CRSwNP. The synergic anti-inflammatory effect of DHMEQ and steroids may be a promising strategy to be explored, particularly in the setting of steroid-resistant NP.

Topics: Active Transport, Cell Nucleus; Androstadienes; Anti-Inflammatory Agents; Benzamides; Cell Survival; Cells, Cultured; Chemokine CCL5; Cyclohexanones; Cytokines; Fibroblasts; Fluticasone; Gene Expression; Humans; Inflammation Mediators; Intercellular Adhesion Molecule-1; Nasal Polyps; NF-kappa B; Rhinitis; Sinusitis; Tumor Necrosis Factor-alpha; Vascular Cell Adhesion Molecule-1