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Kobayashi Y, Chu HH, Bui DV, Yun Y, Nguyen LM, Mitani A, Suzuki K, Asako M, Kanda A, Iwai H. The Neutralization of the Eosinophil Peroxidase Antibody Accelerates Eosinophilic Mucin Decomposition. Cells 2023; 12:2746. [PMID: 38067174 PMCID: PMC10706369 DOI: 10.3390/cells12232746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Eosinophilic airway inflammation, complicated by bronchial asthma and eosinophilic chronic rhinosinusitis (ECRS), is difficult to treat. The disease may become refractory when eosinophilic mucin associated with eosinophil peroxidase (EPX) and autoantibodies fills in the paranasal sinus and small airway. This study investigated the functional role of an anti-EPX antibody in eosinophilic mucin of ECRS in eosinophilic airway inflammation. Eosinophilic mucin was obtained from patients with ECRS. The effects of the anti-EPX antibody on dsDNA release from eosinophils and eosinophilic mucin decomposition were evaluated. Immunofluorescence or enzyme-linked immunosorbent assays were performed to detect the anti-EPX antibody and its supernatant and serum levels in eosinophilic mucin, respectively. The serum levels of the anti-EPX antibody were positively correlated with sinus computed tomography score and fractionated exhaled nitrogen oxide. Patients with refractory ECRS had higher serum levels of the anti-EPX antibody than those without. However, dupilumab treatment decreased the serum levels of the anti-EPX antibody. Immunoglobulins (Igs) in the immunoprecipitate of mucin supernatants enhanced dsDNA release from eosinophils, whereas the neutralization of Igs against EPX stopped dsDNA release. Furthermore, EPX antibody neutralization accelerated mucin decomposition and restored corticosteroid sensitivity. Taken together, the anti-EPX antibody may be involved in the formulation of eosinophilic mucin and be used as a clinical marker and therapeutic target for intractable eosinophilic airway inflammation.
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Affiliation(s)
- Yoshiki Kobayashi
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
- Allergy Center, Kansai Medical University Hospital, Osaka 573-1010, Japan
| | - Hanh Hong Chu
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
| | - Dan Van Bui
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
| | - Yasutaka Yun
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
- Allergy Center, Kansai Medical University Hospital, Osaka 573-1010, Japan
| | - Linh Manh Nguyen
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
| | - Akitoshi Mitani
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
| | - Kensuke Suzuki
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
| | - Mikiya Asako
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
- Allergy Center, Kansai Medical University Hospital, Osaka 573-1010, Japan
| | - Akira Kanda
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
- Allergy Center, Kansai Medical University Hospital, Osaka 573-1010, Japan
| | - Hiroshi Iwai
- Airway Disease Section, Department of Otorhinolaryngology, Kansai Medical University, Osaka 573-1010, Japan; (H.H.C.); (D.V.B.); (Y.Y.); (L.M.N.); (A.M.); (K.S.); (M.A.); (A.K.); (H.I.)
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Subjective symptoms as predictors for eosinophilic chronic rhinosinusitis with nasal polyps in the Chinese population. Eur Arch Otorhinolaryngol 2023:10.1007/s00405-023-07905-1. [PMID: 36917251 DOI: 10.1007/s00405-023-07905-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE To evaluate the putative association between subjective symptoms and eosinophilic inflammation in patients with chronic rhinosinusitis with nasal polyps (CRSwNP). METHODS A total of 102 patients with CRSwNP who underwent endoscopic sinus surgery were prospectively enrolled. The Sinonasal Outcomes Test-22 scores (SNOT-22), EuroQol 5-dimensional Questionnaire scores (ED-5D), and Lund-Mackay scores by computed tomography (CT) were obtained. Patients were grouped as eosinophilic CRSwNP (eCRSwNP) and non-eosinophilic CRSwNP (neCRSwNP). ECRSwNP was defined if tissue eosinophils of nasal polyps were greater than or equal to 8/HPF according to positive major basic protein (MBP) staining, and neCRSwNP otherwise. RESULTS Thirty neCRSwNP and 72 eCRSwNP patients were included. ECRSwNP patients had higher incidences of asthma (p = 0.001), allergic rhinitis (p = 0.001), and ethmoid-to-maxillary opacification ratio on CT scans (p < 0.001), whereas the proportion of purulent discharge (p < 0.001) and maxillary sinus score (p = 0.002) was higher in the neCRSwNP patients. There were no significant differences between patients on the mains of the EQ-5D health utility values and total SNOT-22 score. However, eCRSwNP patients had higher SNOT-22 scores of sneezing (p = 0.006), runny nose (p < 0.001), and ear/facial domain (p = 0.012), and lower scores of thick nasal discharge (p = 0.015) and blockage (p = 0.042). Sneezing, thick nasal discharge, and blockage/congestion of nose were recognized as independent factors of CRSwNP. CONCLUSION Sneezing was an independent predictor of eCRSwNP, and thick nasal discharge and blockage/congestion of nose were independent predictors of neCRSwNP.
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Proposal for Structured Histopathology of Nasal Secretions for Endotyping Chronic Rhinosinusitis: An Exploratory Study. ALLERGIES 2022. [DOI: 10.3390/allergies2040012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: The EPOS guidelines promote cellular analysis as a primary goal in endotyping chronic rhinosinusitis (CRS). Current analysis is mainly based on biopsy or operative tissue collection, whereas the use of sinonasal secretions for inflammatory endotyping is not advocated in clinical practice. Early endotyping is crucial though, especially regarding the increasing evidence of patient-tailored therapy. We aimed to investigate the diagnostic value and reproducibility of sinonasal secretions sampling. Methods: First, preoperative secretion analysis of 53 Caucasian CRS patients was compared to subsequent operative tissue analysis. Second, secretion analysis at two different time points was compared for 10 postoperative Caucasian CRS patients with type 2 (T2) inflammation and 10 control participants. Secretions were collected by both endoscopic aspiration and nasal blown secretions in all participants. Results: The sensitivity to detect T2 inflammation was higher in nasal aspiration samples (85%) compared to nasal blow secretions (32%). A specificity of 100% for both techniques was obtained. A 90% reproducibility for T2 eosinophil detection was found by sampling at different time points regardless of the technique. Of the T2 patients, 60% showed no T2 inflammatory pattern more than one year after endoscopic sinus surgery. Conclusions: Nasal secretion sampling, especially aspiration of nasal secretions, is useful in the detection of T2 inflammation in CRS pathology. We proposed a structured histopathology analysis to be useful in daily clinical practice, which includes Congo red staining sensitive for eosinophilic cells and free eosinophil granules. Analysis of nasal secretions enables endotyping in an early stage, allowing more directed therapy.
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Solares CA. Interdisciplinary Teamwork within the Medical Profession: The Way of the Future. Am J Rhinol Allergy 2021; 35:148-151. [PMID: 33557586 DOI: 10.1177/1945892421992580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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De Corso E, Bellocchi G, De Benedetto M, Lombardo N, Macchi A, Malvezzi L, Motta G, Pagella F, Vicini C, Passali D. Biologics for severe uncontrolled chronic rhinosinusitis with nasal polyps: a change management approach. Consensus of the Joint Committee of Italian Society of Otorhinolaryngology on biologics in rhinology. ACTA ACUST UNITED AC 2021; 42:1-16. [PMID: 34297014 PMCID: PMC9058929 DOI: 10.14639/0392-100x-n1614] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/16/2021] [Indexed: 02/07/2023]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a heterogeneous inflammatory condition of nasal mucosa and paranasal sinuses, predominantly mediated by type 2 inflammation and often associated with comorbid asthma and/or Exacerbated Respiratory Disease (N-ERD). The standard of care involves local and systemic corticosteroids and/or sinonasal surgery, although these options may be associated with recurrences and patients may require revision surgery. Difficult-to-treat patients, in fact, have a more severe disease requiring high systemic corticosteroid use and/or multiple sinonasal surgeries. Literature data suggests that biologic agents targeting specific key effectors of type 2 inflammation may offer supplemental therapy for patients with severe and uncontrolled CRSwNP, leading to significant improvement in several outcomes. For these reasons, over the years the endotyping of the disease has become increasingly important. Herein, we provide not only an update on the existing studies about the most promising biologics in CRSwNP, but also critical discussion on controversies about the use of biologics in severe uncontrolled CRSwNP. We finally provide consensus on strategic issues gathered among experts of the Joint Committee of Italian Society of Otorhinolaryngology on biologics in order to offer the best care for difficult to treat patients.
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Affiliation(s)
- Eugenio De Corso
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Head and Neck Surgery - Otorhinolaryngology, Rome, Italy
| | | | | | - Nicola Lombardo
- ENT Unit Department of Medical and Surgical Sciences, University Magna Græcia Catanzaro, Italy
| | - Alberto Macchi
- ENT University of Insubria, Varese, ASST Settelaghi, Italy
| | - Luca Malvezzi
- IRCCS Humanitas Research Hospital, Department of Otorhinolaryngology and Head and Neck Surgery, Rozzano, Milan, Italy
| | - Gaetano Motta
- Otorhinolaryngology-Head and Neck Surgery, University of Campania L. Vanvitelli, Napoli, Italy
| | - Fabio Pagella
- ENT Department, I.R.C.C.S. Policlinico San Matteo- University of Pavia, Italy
| | - Claudio Vicini
- Department of Head-Neck Surgery, Otolaryngology, Head-Neck and Oral Surgery Unit, Morgagni Pierantoni Hospital, Forlì, Italy
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