Distinct Inflammatory Profiles in Atopic and Nonatopic Patients With Chronic Rhinosinustis Accompanied by Nasal Polyps in Western China.
10.4168/aair.2015.7.4.346
- Author:
Luo BA
1
;
Jintao DU
;
Feng LIU
;
Fenglin YANG
;
Miaomiao HAN
;
Sixi LIU
;
Ping LIN
;
Huabin LI
Author Information
1. Department of Otolaryngology, Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu, China.
- Publication Type:Original Article
- Keywords:
Nasal polyps;
chronic rhinosinusitis;
atopy;
cytokine;
eosinophil;
IgE
- MeSH:
China*;
Cytokines;
Enzyme-Linked Immunosorbent Assay;
Eosinophils;
Humans;
Immunoglobulin E;
Immunohistochemistry;
Inflammation;
Interleukin-10;
Interleukin-17;
Interleukin-2;
Interleukin-5;
Mast Cells;
Nasal Polyps*;
Neutrophils;
Polyps;
Prostaglandin D2;
Real-Time Polymerase Chain Reaction;
RNA, Messenger;
Transcription Factors
- From:Allergy, Asthma & Immunology Research
2015;7(4):346-358
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The role of systemic sensitization in the pathophysiology of chronic rhinosinusitis with nasal polyps (CRSwNP) remains elusive. This study sought to characterize the pattern of cytokines in polyp tissues from atopic and nonatopic patients with CRSwNP. METHODS: Atopic and nonatopic polyp and normal tissues were collected from 70 CRSwNP patients and 26 control subjects, respectively. The distribution of inflammatory cells (eosinophils, neutrophils, mast cells, etc.) were examined using immunohistochemistry, the mRNA levels of the transcription factors GATA-3, T-bet, RORc, and FOXP3 were determined using quantitative real-time polymerase chain reaction. The levels of inflammatory mediators (IFN-gamma, IL-5, IL-17A, etc.) in tissue homogenates were measured using enzyme-linked immunosorbent assay (ELISA). Moreover, the levels of inflammatory mediators in the supernatant of anti-IgE stimulated polyp tissues were measured using ELISA. RESULTS: Atopic CRSwNP patients were characterized by increased eosinophil accumulation, enhanced eosinophilic inflammation (elevated IL-5, ECP, and total IgE), and significantly increased GATA-3 mRNA levels (P<0.05), whereas both atopic and non-atopic CRSwNP patients showed decreased FOXP3 mRNA expression (P<0.05). After addition of anti-IgE stimulation, atopic CRSwNP patients produced more IL-5, IL-2, IL-10, IL-17A, and PGD2 in the supernatant of stimulated polyp tissues than nonatopic CRSwNP patients did. CONCLUSIONS: Atopic and nonatopic CRSwNP patients may possess the patterns of inflammatory response in polyp tissues.
