OBJECTIVES: To investigate the role of the inflammatory cytokine interleukin-6 (IL-6) in the regulation of mucin secretion by middle ear epithelia. MATERIALS AND METHODS: Primary chinchilla middle ear epithelial cultures were established and exposed to IL-6 in a dose- and time-dependent manner. Mucin secretion was characterized by exclusion chromatography and liquid scintillation. RESULTS: Epithelial cultures exposed to increasing doses of IL-6 demonstrated greater amounts of mucin secretion (p=0.018). Additionally, cultures exposed to IL-6 at 50 ng/ml showed significant increased secretion of mucin over control in time-dependent experiments at 6-, 15- and 24-h time points (p=0.003). CONCLUSIONS: IL-6 upregulates mucin secretion from cultured middle ear epithelial cells in a dose- and time-dependent manner. Elucidating the effect of specific cytokines on the regulation of mucin secretion is vital to understanding the pathophysiology of otitis media and the development of novel therapeutic strategies.
OBJECTIVES: To investigate the role of the inflammatory cytokine interleukin-6 (IL-6) in the regulation of mucin secretion by middle ear epithelia. MATERIALS AND METHODS: Primary chinchilla middle ear epithelial cultures were established and exposed to IL-6 in a dose- and time-dependent manner. Mucin secretion was characterized by exclusion chromatography and liquid scintillation. RESULTS: Epithelial cultures exposed to increasing doses of IL-6 demonstrated greater amounts of mucin secretion (p=0.018). Additionally, cultures exposed to IL-6 at 50 ng/ml showed significant increased secretion of mucin over control in time-dependent experiments at 6-, 15- and 24-h time points (p=0.003). CONCLUSIONS: IL-6 upregulates mucin secretion from cultured middle ear epithelial cells in a dose- and time-dependent manner. Elucidating the effect of specific cytokines on the regulation of mucin secretion is vital to understanding the pathophysiology of otitis media and the development of novel therapeutic strategies.
Authors: Tina L Samuels; Justin C Yan; Pawjai Khampang; Peter W Dettmar; Alexander MacKinnon; Wenzhou Hong; Nikki Johnston; Blake C Papsin; Robert H Chun; Michael E McCormick; Joseph E Kerschner Journal: JAMA Otolaryngol Head Neck Surg Date: 2017-08-01 Impact factor: 6.223
Authors: M Eguchi; S Kariya; M Okano; T Higaki; S Makihara; T Fujiwara; K Nagata; H Hirai; S Narumiya; M Nakamura; K Nishizaki Journal: Clin Exp Immunol Date: 2010-12-16 Impact factor: 4.330
Authors: Steven K Juhn; Min-Kyo Jung; Mark D Hoffman; Brian R Drew; Diego A Preciado; Nicholas J Sausen; Timothy T K Jung; Bo Hyung Kim; Sang-Yoo Park; Jizhen Lin; Frank G Ondrey; David R Mains; Tina Huang Journal: Clin Exp Otorhinolaryngol Date: 2008-09-30 Impact factor: 3.372