OBJECTIVE: The aim of this study was to investigate the histoimmunological features of non-eosinophilic nasal polyps (NPs). METHODS: Thirty patients with chronic rhinosinusitis and NPs were included in this study. NPs were grouped into eosinophilic and non-eosinophilic types according to the amount of eosinophils in the NPs. The amount of serum total IgE and peripheral blood eosinophils were measured. Basement membrane (BM) thickness was measured, along with the expression of chemokine receptor 5 (CCR5) and chemokine receptor 3 (CCR3) in NP lymphocytes. RESULTS: Non-eosinophilic NPs comprised 66.7% of the total NPs included in this study. The amount of eosinophils in NPs was related to eosinophilia of the peripheral blood, but not to elevated serum IgE. BM was significantly thinner in non-eosinophilic than in eosinophilic NPs. Lymphocytes expressing CCR5 or CCR3 were less frequently found in non-eosinophilic than in eosinophilic NPs. CONCLUSION: Histoimmunological characteristics of non-eosinophilic NPs differ from those of eosinophilic NPs; non-eosinophilic NPs may be featured by thinner BM and fewer CCR5- and CCR3-positive lymphocytes.
OBJECTIVE: The aim of this study was to investigate the histoimmunological features of non-eosinophilic nasal polyps (NPs). METHODS: Thirty patients with chronic rhinosinusitis and NPs were included in this study. NPs were grouped into eosinophilic and non-eosinophilic types according to the amount of eosinophils in the NPs. The amount of serum total IgE and peripheral blood eosinophils were measured. Basement membrane (BM) thickness was measured, along with the expression of chemokine receptor 5 (CCR5) and chemokine receptor 3 (CCR3) in NP lymphocytes. RESULTS: Non-eosinophilic NPs comprised 66.7% of the total NPs included in this study. The amount of eosinophils in NPs was related to eosinophilia of the peripheral blood, but not to elevated serum IgE. BM was significantly thinner in non-eosinophilic than in eosinophilic NPs. Lymphocytes expressing CCR5 or CCR3 were less frequently found in non-eosinophilic than in eosinophilic NPs. CONCLUSION: Histoimmunological characteristics of non-eosinophilic NPs differ from those of eosinophilic NPs; non-eosinophilic NPs may be featured by thinner BM and fewer CCR5- and CCR3-positive lymphocytes.
Authors: Gargi Rai; Priyamvada Roy; Neelima Gupta; Sonal Sharma; Sajad Ahmed Dar; Mohammad Ahmed Ansari; V G Ramachandran; Shukla Das Journal: Indian J Otolaryngol Head Neck Surg Date: 2017-07-26
Authors: John W Steinke; Anna R Smith; Delaney J Carpenter; James T Patrie; Spencer C Payne; Larry Borish Journal: J Allergy Clin Immunol Pract Date: 2017-05-10
Authors: Spencer C Payne; Joseph K Han; Phillip Huyett; Julie Negri; Elizabeth Z Kropf; Larry Borish; John W Steinke Journal: Am J Rhinol Date: 2008 Nov-Dec
Authors: S Hancer Tecimer; F Kasapoglu; U L Demir; O A Ozmen; H Coskun; O Basut Journal: Eur Arch Otorhinolaryngol Date: 2014-07-10 Impact factor: 2.503