OBJECTIVE: To determine alterations in Th2 chemokines eotaxin and monocyte chemoattractant protein-4 (MCP-4), and cytokines interleukin-5 (IL-5) and interleukin-13 (IL-13), in nasal polyps (NP) after steroid treatment. STUDY DESIGN: Cytokine/chemokine levels were measured in NP before and after steroid therapy and compared to control sinus mucosa. RESULTS: Twenty-one patients (control = 7, NP = 14) were enrolled. Eotaxin and MCP-4 were significantly higher than control tissue (P = 0.004 and 0.003). All four mediators decreased after steroid treatment (P < 0.03). IL-5 and IL-13 in untreated polyps were not significantly different from controls. Patients showed clinical improvement according to SNOT-20 scores (average presteroid score 19, poststeroid score 13) and endoscopic grading (1.75 each side presteroid, 1.13 poststeroid). CONCLUSIONS: Steroids significantly decreased all cytokine/chemokine levels, but the impact on Th2 chemokines was of a much greater magnitude. SIGNIFICANCE: Novel approaches to block inflammatory mediators, particularly Th2 chemokines, may lead to better control of nasal polyposis in the future.
OBJECTIVE: To determine alterations in Th2 chemokines eotaxin and monocyte chemoattractant protein-4 (MCP-4), and cytokines interleukin-5 (IL-5) and interleukin-13 (IL-13), in nasal polyps (NP) after steroid treatment. STUDY DESIGN: Cytokine/chemokine levels were measured in NP before and after steroid therapy and compared to control sinus mucosa. RESULTS: Twenty-one patients (control = 7, NP = 14) were enrolled. Eotaxin and MCP-4 were significantly higher than control tissue (P = 0.004 and 0.003). All four mediators decreased after steroid treatment (P < 0.03). IL-5 and IL-13 in untreated polyps were not significantly different from controls. Patients showed clinical improvement according to SNOT-20 scores (average presteroid score 19, poststeroid score 13) and endoscopic grading (1.75 each side presteroid, 1.13 poststeroid). CONCLUSIONS:Steroids significantly decreased all cytokine/chemokine levels, but the impact on Th2 chemokines was of a much greater magnitude. SIGNIFICANCE: Novel approaches to block inflammatory mediators, particularly Th2 chemokines, may lead to better control of nasal polyposis in the future.
Authors: Chunwei Li; Li Shi; Yan Yan; Bruce R Gordon; William M Gordon; De-Yun Wang Journal: Curr Allergy Asthma Rep Date: 2013-04 Impact factor: 4.806
Authors: Sarah K Wise; Adrienne M Laury; Elizabeth H Katz; Kyle A Den Beste; Charles A Parkos; Asma Nusrat Journal: Int Forum Allergy Rhinol Date: 2014-02-07 Impact factor: 3.858
Authors: Sarah K Wise; Kyle A Den Beste; Elizabeth K Hoddeson; Charles A Parkos; Asma Nusrat Journal: Int Forum Allergy Rhinol Date: 2013-03-06 Impact factor: 3.858
Authors: Valerie Hox; Evelijn Lourijsen; Arnout Jordens; Kristian Aasbjerg; Ioana Agache; Isam Alobid; Claus Bachert; Koen Boussery; Paloma Campo; Wytske Fokkens; Peter Hellings; Claire Hopkins; Ludger Klimek; Mika Mäkelä; Ralph Mösges; Joaquim Mullol; Laura Pujols; Carmen Rondon; Michael Rudenko; Sanna Toppila-Salmi; Glenis Scadding; Sophie Scheire; Peter-Valentin Tomazic; Thibaut Van Zele; Martin Wagemann; Job F M van Boven; Philippe Gevaert Journal: Clin Transl Allergy Date: 2020-01-03 Impact factor: 5.871