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Heffler E, Landi M, Caruso C, Fichera S, Gani F, Guida G, Liuzzo MT, Pistorio MP, Pizzimenti S, Riccio AM, Seccia V, Ferrando M, Malvezzi L, Passalacqua G, Gelardi M. Nasal cytology: Methodology with application to clinical practice and research. Clin Exp Allergy 2018; 48:1092-1106. [PMID: 29904978 DOI: 10.1111/cea.13207] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nasal cytology is an easy, cheap, non-invasive and point-of-care method to assess nasal inflammation and disease-specific cellular features. By means of nasal cytology, it is possible to distinguish between different inflammatory patterns that are typically associated with specific diseases (ie, allergic and non-allergic rhinitis). Its use is particularly relevant when other clinical information, such as signs, symptoms, time-course and allergic sensitizations, is not enough to recognize which of the different rhinitis phenotypes is involved; for example, it is only by means of nasal cytology that it is possible to distinguish, among the non-allergic rhinitis, those characterized by eosinophilic (NARES), mast cellular (NARMA), mixed eosinophilic-mast cellular (NARESMA) or neutrophilic (NARNE) inflammation. Despite its clinical usefulness, cheapness, non-invasiveness and easiness, nasal cytology is still underused and this is at least partially due to the fact that, as far as now, there is not a consensus or an official recommendation on its methodological issues. We here review the scientific literature about nasal cytology, giving recommendations on how to perform and interpret nasal cytology.
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Affiliation(s)
- E Heffler
- Department of Biomedical Sciences, Humanitas University, Milano, Italy.,Personalized Medicine, Asthma and Allergy Unit, Humanitas Clinical and Research Center, Humanitas University, Milano, Italy
| | - M Landi
- Institute of Biomedicine and Molecular Immunology, National Research Council of Italy, Palermo, Italy.,Paediatric National Healthcare System, Torino, Italy
| | - C Caruso
- Allergy Unit, Fondazione Policlinico Gemelli, Presidio Columbus, Rome, Italy
| | - S Fichera
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - F Gani
- Respiratory Allergy, A.O.U. San Luigi, Orbassano, Torino, Italy
| | - G Guida
- Allergy and Lung Physiology, AO Santa Croce e Carle, Cuneo, Italy
| | - M T Liuzzo
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - M P Pistorio
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - S Pizzimenti
- Respiratory Medicine Unit, National Health System, ASL Città di Torino, Torino, Italy
| | - A M Riccio
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - V Seccia
- 1st Otorhinolaryngology Unit, Department of Medical and Surgical Pathology, Pisa University Hospital, Pisa, Italy
| | - M Ferrando
- Department of Biomedical Sciences, Humanitas University, Milano, Italy.,Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - L Malvezzi
- Department of Otolaryngology, Humanitas Clinical and Research Center, Milano, Italy
| | - G Passalacqua
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - M Gelardi
- Section of Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
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A slippery slope: On the origin, role and physiology of mucus. Adv Drug Deliv Rev 2018; 124:16-33. [PMID: 29108861 DOI: 10.1016/j.addr.2017.10.014] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/17/2017] [Accepted: 10/29/2017] [Indexed: 02/07/2023]
Abstract
The mucosa of the gastrointestinal tract, eyes, nose, lungs, cervix and vagina is lined by epithelium interspersed with mucus-secreting goblet cells, all of which contribute to their unique functions. This mucus provides an integral defence to the epithelium against noxious agents and pathogens. However, it can equally act as a barrier to drugs and delivery systems targeting epithelial passive and active transport mechanisms. This review highlights the various mucins expressed at different mucosal surfaces on the human body, and their role in creating a mucoid architecture to protect epithelia with specialized functions. Various factors compromising the barrier properties of mucus have been discussed, with an emphasis on how disease states and microbiota can alter the physical properties of mucus. For instance, Akkermansia muciniphila, a bacterium found in higher levels in the gut of lean individuals induces the production of a thickened gut mucus layer. The aims of this article are to elucidate the different physiological, biochemical and physical properties of bodily mucus, a keen appreciation of which will help circumvent the slippery slope of challenges faced in achieving effective mucosal drug and gene delivery.
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Malekzadeh S, Hamburger MD, Whelan PJ, Biedlingmaier JF, Baraniuk JN. Density of Middle Turbinate Subepithelial Mucous Glands in Patients with Chronic Rhinosinusitis. Otolaryngol Head Neck Surg 2016; 127:190-5. [PMID: 12297809 DOI: 10.1067/mhn.2002.126800] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE: Histologic changes have not been systematically assessed in chronic rhinosinusitis. Quantitative histochemical studies evaluated the extent of sinus disease and gland density in the middle turbinates. STUDY DESIGN AND SETTING: Sinus computed tomography scans of 34 patients with chronic rhinosinusitis were retrospectively graded 0 to IV according to the May classification. Middle turbinates from patients with chronic rhinosinusitis (n = 46) and normal patients (n = 7) were harvested during endoscopic sinus surgery. The areas of Alcian blue-stained glands were assessed in paraffin sections using a computer-assisted microscopy video system. RESULTS: Alcian blue-stained glands occupied 7.94% of normal mucosa. The staining in all grade III rhinosinusitis subjects was increased to 12.94% ( P < 0.01). In contrast, grade IV pansinusitis was associated with nasal polyposis (6 of 6) with decreased gland area (3.04%, P < 0.01). When polyp patients were excluded from grade III rhinosinusitis, the Alcian blue-staining area was 17.68% ( P < 0.01). CONCLUSIONS: Distinct polypoid and glandular histopathologic patterns are present in chronic rhinosinusitis.
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Affiliation(s)
- Sonya Malekzadeh
- Department of Otolaryngology-Head and Neck Surgery, Georgetown University Medical Center, Washington, DC 20007-2197, USA.
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Tang J, Liu S, Zhang L, Chen W, Shi S, Yu Q, Tang C, Wang Y. Correlation analysis of prognostic and pathological features of patients with chronic sinusitis and nasal polyps following endoscopic surgery. Exp Ther Med 2013; 6:167-171. [PMID: 23935740 PMCID: PMC3735513 DOI: 10.3892/etm.2013.1072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 04/04/2013] [Indexed: 01/21/2023] Open
Abstract
The aim of this study was to evaluate the therapeutic value of pathological indicators to predict the efficacy of endoscopic sinus surgery (ESS) in patients with chronic rhinosinusitis (CRS) with nasal polyps. A total of 53 patients with CRS with nasal polyps, who had undergone endoscopic surgery at least one year before, were surveyed for their clinical symptoms. Surgical specimen biopsies were consulted and related pathological indicators were measured. The association between the main symptoms of CRS with nasal polyps following ESS and pathological indicators were statistically analyzed. The main symptoms of patients with CRS with nasal polyps following ESS were nasal congestion, thick nasal discharge, rhinorrhea or sneezing. Goblet cells are associated with the symptoms of sneezing and thick nasal discharge, pathological gland formation is associated with dizziness, and the degree of tissue edema is associated with post-nasal discharge (P<0.05). Pathological indicators aid the prediction of the efficacy of nasal ESS in patients with CRS with nasal polyps.
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Affiliation(s)
- Jun Tang
- Department of Otolaryngology - Head and Neck Surgery, The First People's Hospital of Foshan, Foshan, Guangdong 528000
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Abstract
Two histologic patterns of disease are found in chronic rhinosinusitis. The first is dominated by eosinophilia and polypoid changes. Glandular hyperplasia and hypertrophy characterize the second. We present the evidence supporting the existence of these two patterns of disease and link these histologic patterns to the larger pathophysiologic processes that drive them. This histologic classification should be acknowledged both in the clinical setting and in laboratory research of chronic rhinosinusitis.
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Affiliation(s)
- Sonya Malekzadeh
- Department of Otolaryngology-Head and Neck Surgery, Georgetown University, 1st Floor Gorman Building, 3800 Reservoir Road, NW, Washington, DC 20007-2197, USA.
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Berger G, Kattan A, Bernheim J, Ophir D. Polypoid mucosa with eosinophilia and glandular hyperplasia in chronic sinusitis: a histopathological and immunohistochemical study. Laryngoscope 2002; 112:738-45. [PMID: 12150532 DOI: 10.1097/00005537-200204000-00026] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the histopathological and immunohistochemical characteristics of chronic sinusitis, with reference to the extent of sinus involvement. STUDY DESIGN A nonrandomized, retrospective, controlled qualitative and quantitative study. METHODS Twenty-nine adults with refractory chronic sinusitis underwent functional endoscopic sinus surgery. The score of computed tomography scans was used to determine the extent of disease. Six patients with normal sinus mucosae served as control subjects. Specimens underwent routine histological processing and hematoxylin-eosin and periodic acid-Schiff staining. Immunohistochemistry for T and B lymphocytes was applied. Low-magnification microscopy was designed to yield typical pathological features, and high magnification to count various inflammatory cells. RESULTS Patients were divided into two groups according to their dominant pathological features: 16 had polypoid mucosa and eosinophilia, and 13 had glandular hyperplasia. The number of eosinophils, T and B lymphocytes in the lamina propria was significantly higher in patients with polypoid mucosa and eosinophilia, compared with those with glandular hyperplasia and with normal control subjects, whereas the difference between patients with glandular hyperplasia and control subjects was insignificant. Although the overall inflammatory reaction was relatively modest, nasal polyposis was more prevalent in patients with polypoid mucosa and eosinophilia; likewise, computed tomography revealed a significantly more extensive disease in these patients compared with the patients with glandular hyperplasia. CONCLUSION Two pathophysiological pathways, inducing prolonged obstruction to the outflow of sinus secretion and ultimately causing chronic inflammation, are suggested: 1) swollen polypoid mucosa with activation of eosinophils that damage the epithelium and 2) continued increased mucus secretion originated from hyperplastic submucosal seromucous glands.
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Affiliation(s)
- Gilead Berger
- Department of Otolaryngology-Head and Neck Surgery, Meir General Hospital, Kfar Saba, Israel.
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Shinogi J, Harada T, Nonoyama T, Kishioka C, Sakakura Y, Majima Y. Quantitative analysis of mucin and lectin in maxillary sinus fluids in patients with acute and chronic sinusitis. Laryngoscope 2001; 111:240-5. [PMID: 11210868 DOI: 10.1097/00005537-200102000-00010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Sinusitis is characterized by quantitative and qualitative changes in mucus biosynthesis that contribute to sinus disease. In general, patients with acute sinusitis complain of purulent rhinorrhea, whereas those with chronic sinusitis complain of mucoid or mucopurulent rhinorrhea Locally produced mucin largely contributes to the high viscoelasticity of mucus in sinusitis. In this study, the authors attempt to quantify the concentrations of mucin and lectin in the maxillary sinus fluids from these patients. STUDY DESIGN To assess the concentrations of mucin and lectin in aspirates of 11 acutely and 11 chronically inflamed maxillary sinuses, the concentration of mucin was measured by enzyme-linked immunosorbent assay (ELISA) and that of lectin by sandwiched enzyme-linked lectin assay (ELLA). RESULTS The concentrations of mucin and lectin that were measured using monoclonal antibodies (HCS 4, HCS 14, and HCS 18) and Ulex europaeus agglutinin-1 (UEA-1) in chronic sinusitis were higher than those in acute sinusitis. The concentration of total protein in chronic sinusitis was lower than that in acute sinusitis. Each mucin and lectin versus total protein ratio in chronic sinusitis was higher than that in acute sinusitis. CONCLUSIONS These data suggest that hypersecretion in chronic sinusitis may result from locally increased mucin production. Comprehension of this mechanism may be a strategy to prevent the viscous cycle of paranasal sinus fluids in chronic sinusitis.
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Affiliation(s)
- J Shinogi
- Department of Otorhinolaryngology, Mie University School of Medicine, Japan
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Melgarejo-Moreno PJ, Ribera-Cortada I, Hellin-Meseguer D. Submucosal glands after maxillary sinus surgery. An experimental study in rabbits. J Laryngol Otol 1996; 110:644-8. [PMID: 8759537 DOI: 10.1017/s0022215100134504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Thirty New Zealand White rabbits underwent unilateral partial or complete removal of maxillary sinus mucosa in order to evaluate submucosal maxillary sinus glands. After three months, specimens were taken for examination from all operated on and control sinuses. Bacteriological cultures, light and electron microscopy were performed. Histopathological findings showed a decrease in the number of serous glands and significant inflammation was present in the sinus in which there was complete surgical removal. Electron microscopy revealed changes in the secretory cells of the serous glands in the regenerated post-surgical mucosa.
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Affiliation(s)
- P J Melgarejo-Moreno
- Department of Otolaryngology, School of Medicine, Hospital Arnau de Vilanova, Lleida, Spain
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