Author:
El Ebiary Hassan Alaa Mohamed,Shafik Amr Gouda,El Sharnoby Mohammed Mohammed Kamar,Shash Lobna Sadek,Hamed Amr Hamed Mohamed,Morshed Mohamed Mahmoud Mohamed
Abstract
Abstract
Background
Chronic rhinosinusitis with nasal polyps (CRSwNP) is an allergic response characterized by type 2 inflammatory reactions mediated by T helper 2 cells (Th2). Th2 is characterized by elevated type 2 cytokines related to the humoral response, including Interleukin-4 (IL-4), IL-5, IL-6, IL-9, IL-10, IL-13, IL-25 and IL-33. Allergic fungal sinusitis (AFS) is a distinguishable form of CRSwNP and is characterized by primary localized disease with non-invasive fungal hyphae, which causes immunoglobulin E (IgE)-mediated mucosal hypersensitivity resulting in the formation of eosinophilic mucin. Interleukin-5 (IL-5) is a pro-inflammatory factor that plays a very important role in eosinophil biology.
Objective
To explore the relation between IL-5 tissue protein expression and AFS.
Methods
A prospective study performed on 70 patients divided into 2 groups (50 cases of AFS and 20 control who underwent septoplasty and partial inferior turbinectomy) to assess the role of IL5 in AFS compared to control.
Results
IL-5 was overexpressed in polyps of AFS patients compared to the control group denoting AFS as an eosinophilic mediated type 2 inflammation and highlighting a positive correlation with Lund MacKay radiological score and Sino-nasal Outcome Test (SNOT-22) score for severity of chronic rhinosinusitis (CRS) symptoms.
Conclusion
IL-5 plays a pivotal role in the pathogenesis and severity of AFS. Thus, our results provide encouraging evidence supporting targeting IL5 as an eligible therapy of promising benefits in AFS.
Publisher
Springer Science and Business Media LLC
Reference18 articles.
1. Fokkens WJ, Lund VJ, Mullol J, Bachert C, Alobid I et al (2012) European position paper on rhinosinusitis and nasal polyps. A summary for otorhinolaryngologists Rhinology 50:1–12
2. Bent JP, Kuhn FA (1994) Diagnosis of allergic fungal sinusitis. Otolaryngol Head Neck Surg 111:580–588
3. deShazo RD, Swain RE (1995) Diagnostic criteria for allergic fungal sinusitis. J Allergy Clin Immunol 96:24–35
4. Lu-Myers Y, Deal AM, Miller JD, Thorp BD, Sreenath SB, McClurg SM, Senior BA, Zanation AM, Ebert CS Jr (2015) Comparison of Socioeconomic and Demographic Factors in Patients with Chronic Rhinosinusitis and Allergic Fungal Rhinosinusitis. Otolaryngol Head Neck Surg. 153(1):137–43. https://doi.org/10.1177/0194599815580978
5. Bachert C, Gevaert P, Holtappels G, Cuvelier C, Van Cauwenberge P (2000) Nasal polyposis: from cytokines to growth. Am J Rhinol 14(5):279–290