scholarly journals Biofilms and inflammation in patients with chronic rhinosinusitis

2020 ◽  
Author(s):  
Lavinia-Gianina Manciula ◽  
Ionut Isaia Jeican ◽  
Lucian Barbu Tudoran ◽  
Silviu Albu
Keyword(s):  
Chronic Rhinosinusitis ◽  
Plasma Cell ◽  
Nasal Polyps ◽  
Nasal Polyposis ◽  
Inflammatory Cell ◽  
Plasma Cells ◽  
Strongly Correlated ◽  
Cell Counts ◽  
Deviated Septum ◽  
Nasal Pathology

Introduction. The aim of the present study is to evaluate the presence of biofilms in patients with chronic rhinosinusitis (CRS), with or without nasal polyps, and their relationship to eosinophils and plasma cells. We compared the results with those obtained in nonCRS patients. Methods. A total of 50 patients were included in the study, 30 CRSwNP patients, 10 CRSsNP cases and 10 control patients who were operated for deviated septum. Biofilm detection was performed by means of H&E staining and SEM. Eosinophil and plasma cell values were recorded and compared between groups. Results. Biofilms were identified in 30 patients (60%), 76.6% (23 out of 30) of the CRSwNP patients, 70% (7 out of 10) of the CRSsNP patients and none of the septoplasty patients. Eosinophil and plasma cell values were more elevated in CRS patients, being strongly correlated to biofilm presence and nasal polyposis. Conclusion. Biofilm presence was demonstrated in many of the CRS patients, with no evidence in the control cases. Our study findings indicate that inflammatory cell counts are higher in patients with CRS compared to controls, but also more elevated in patients with polyposis. In biofilm-positive patients, eosinophil and plasma cell counts were greater than those in patients without biofilms, demonstrating the proinflammatory action of the biofilm in the sino-nasal pathology.

scholarly journals CD133, a Progenitor Cell Marker, is Reduced in Nasal Polyposis and Showed Significant Correlations with TGF-β1 and IL-8

2021 ◽  
Author(s):  
Wagner Vargas Souza Lino ◽  
André Luis Lacerda Bachi ◽  
José Arruda Mendes Neto ◽  
Gabriel Caetani ◽  
Jônatas Bussador do Amaral ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Nasal Polyposis ◽  
Transforming Growth Factor ◽  
Middle Turbinate ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Histologic Analysis ◽  
Aspirin Intolerance ◽  
Tgf Β1

Abstract Introduction Combination of chronic inflammation and an altered tissue remodeling process are involved in the development of Chronic Rhinosinusitis with Nasal Polyps (CRSwNP). Studies demonstrated that mesenchymal stem cells expressing the progenitor gene CD133 were involved in a significant reduction of the chronic inflammatory process in the polypoid tissue. Objective To evaluate the levels of CD133 (Prominin-1) in nasal polypoid tissue and its correlation with interleukin-8 (IL-8) and transforming growth factor β1 (TGF-β1). Methods A total of 74 subjects were divided in the following groups: control group (n = 35); chronic rhinosinusitis with nasal polyps nonpresenting comorbid asthma and aspirin intolerance (CRSwNPnonAI) group (n = 27); and chronic rhinosinusitis with nasal polyps presenting comorbid asthma and aspirin intolerance (CRSwNPAI) group (n = 12). Histologic analysis and also evaluation of the concentration of CD133, IL-8, and TGF-β1 by enzyme-linked immunosorbent assay (ELISA) kits were performed in nasal tissue obtained from nasal polypectomy or from middle turbinate tissue. Results Higher eosinophilic infiltration was found in both CRSwNP groups by histologic analysis. Lower levels of TGF-β1 and IL-8 were observed in both CRSwNP groups when compared with the control group, whereas the CD133 levels were significantly reduced only in the CRSwNPnonAI group compared with the control group. Conclusion It was demonstrated that the nasal mucosa presenting polyposis showed a significant reduction of CD133 levels, and also that this reduction was significantly correlated with the reduction of TGF-β1 levels, but not with IL-8 levels. Therefore, these findings may be involved in the altered inflammatory and remodeling processes observed in the nasal polyposis.

scholarly journals Dynamic Leukocyte Populations Are Associated With Early- and Late-stage Lesions in Hidradenitis Suppurativa

2020 ◽  
pp. 002215542097853
Author(s):  
Savanna R. Altman ◽  
Sheila L. Criswell
Keyword(s):  
Late Stage ◽  
Hidradenitis Suppurativa ◽  
Inflammatory Cell ◽  
Plasma Cells ◽  
Early Stage ◽  
Skin Condition ◽  
The Body ◽  
Inflammatory Cell Infiltrate ◽  
Cell Counts ◽  
Cell Fractions

Hidradenitis suppurativa (HS) is a chronic inflammatory skin condition typically targeting the axillary and anogenital regions of the body. The massive inflammatory cell infiltrate produced in this cryptogenic condition has led investigators in the attempt to link particular inflammatory cell fractions and cytokines to disease development, and ultimately to disease treatment. This study qualitatively and quantitatively analyzes the white blood cell fractions of macrophages, B-lymphocytes, T-lymphocytes, plasma cells, and granulocytes in 104 HS lesions on formalin-fixed paraffin-embedded tissues using immunohistochemistry (IHC). Four dermis-associated epithelial categories were investigated from persons with HS: 15 unaffected HS skin (US), 19 distended but unruptured follicle epithelium (UF), 62 migrating stratified squamous epithelium (MSSE) from ruptured follicles, and 35 degraded migrating epithelial sheets (DMES). In addition, 27 control skin (CS) from persons without HS were evaluated. Analysis of cell counts indicated that non-migratory dermal epithelium (CS, US, and UF) stimulated very little inflammatory response. However, contrary to previous studies which indicated macrophages to be the chief inflammatory cell in HS, this study showed that plasma cells were the primary cell type present in early-stage HS lesions (MSSE), whereas granulocytes were the major cell population seen in late-stage HS lesions (DMES):

scholarly journals Substance P and Hemokinin 1 in Nasal Lavage Fluid of Patients with Chronic Sinusitis and Nasal Polyposis

OTO Open ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 2473974X1987507
Author(s):  
Ashley Lonergan ◽  
Theoharis Theoharides ◽  
Eirini Tsilioni ◽  
Elie Rebeiz
Keyword(s):  
Substance P ◽  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Nasal Polyposis ◽  
Medical Center ◽  
Disease Process ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Enzyme Linked Immunosorbent Assay ◽  
Nasal Lavage Fluid

This pilot study was undertaken to isolate and quantify substance P (SP) and hemokinin 1 (HK-1) in the nasal lavage fluid of patients with chronic rhinosinusitis with nasal polyps to better elucidate the pathophysiology underlying this inflammatory process, which remains poorly understood. Mucus samples were collected from this introductory cohort of 10 patients diagnosed with chronic rhinosinusitis with nasal polyps at Tufts Medical Center (Boston, Massachusetts). Relative levels of SP and HK-1 were measured with enzyme-linked immunosorbent assay methods. Both inflammatory neuropeptides were found in detectable and comparable amounts in patient samples and in concentrations up to 100-fold those established in past literature. The presence of SP and HK-1 necessitates further investigation into their role in nasal polyposis and the potentiation of the chronic inflammation inherent to chronic rhinosinusitis. Downregulating these peptides could therefore provide novel treatment targets to manage this disease process.

scholarly journals Nasal Polyposis: Insights in Epithelial-Mesenchymal Transition and Differentiation of Polyp Mesenchymal Stem Cells

2020 ◽  
Vol 21 (18) ◽  
pp. 6878 ◽  
Author(s):  
Emanuela Chiarella ◽  
Nicola Lombardo ◽  
Nadia Lobello ◽  
Annamaria Aloisio ◽  
Teodoro Aragona ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Inflammatory Process ◽  
Nasal Polyposis ◽  
Epithelial Mesenchymal Transition ◽  
Nasal Congestion ◽  
Alternative Source ◽  
Mesenchymal Transition

Chronic rhinosinusitis is a common inflammatory disease of paranasal sinuses, which causes rhinorrhea, nasal congestion, and hyposmia. The genetic predisposition or the exposure to irritants can sustain the inflammatory response and the development of nasal polyposis. Nasal polyps are benign and teardrop-shaped growths that project in the nasal cavities, and originate from the ethmoid sinuses. This inflammatory process is associated with high expression of IL-4, IL-5 and IL-13 and IgE. Antibodies targeting these cytokines or receptors represent a therapeutic strategy in the treatment of nasal polyposis in combination with corticosteroids. The molecular pathogenesis of nasal polyps in chronic rhinosinusitis (CRS) patients is associated with remodeling transition, a process in which epithelial cells lose their typical phenotype, acquiring a mesenchymal-like aspect. TGFβ/SMAD, ERK, and Wnt/β-catenin pathways are altered during the nasal tissue remodeling. miRNA and inhibitor molecules targeting these signaling pathways are able to interfere with the process; which could lead to alternative therapies. Nasal polyps are an alternative source of mesenchymal stem cells, which can be isolated from surgical biopsies. A molecular understanding of the biology of PO-MSCs will contribute to the delineating inflammatory process underlying the development of nasal polyps.

scholarly journals Predominant Endotype of Nasal Polyps in a Sample of Filipinos Following Endoscopic Sinus Surgery for Chronic Rhinosinusitis with Nasal Polyposis

2021 ◽  
Vol 36 (1) ◽  
pp. 28
Author(s):  
Karla Victoria Nable-Llanes ◽  
Rodante Roldan
Keyword(s):  
South Korea ◽  
Chronic Rhinosinusitis ◽  
Endoscopic Sinus Surgery ◽  
Nasal Polyps ◽  
Chart Review ◽  
Nasal Polyposis ◽  
Medical Center ◽  
Retrospective Chart Review ◽  
Sinus Surgery ◽  
Consecutive Sample

ABSTRACT Objective: To determine the prevalence of eosinophilic and non-eosinophilic nasal polyps in Filipino patients with chronic rhinosinusitis with nasal polyposis (CRSwNP) who underwent endoscopic sinus surgery. Methods: Design: Retrospective Chart Review Setting: Tertiary Government Training Hospital Participants: A consecutive sample of adult patients who underwent endoscopic sinus surgery for chronic rhinosinusitis with nasal polyposis at the Rizal Medical Center from 2015-2019.   Results: Out of 66 patients who underwent endoscopic sinus surgery during the study period, 36 (54.55%) had an eosinophilic endotype while 30 (45.45%) had a non-eosinophilic endotype. Conclusion: he slight predominance of eosinophilic nasal polyps found in our sample may suggest a contrasting trend compared to our Asian neighbors, who have a predominantly non[1]eosinophilic endotype – Indonesia (90.47%), Thailand (81.9%), South Korea (66.7%) and China (53.6%). However, this predominance is still lower than the 78-88% eosinophilia reported among Caucasians. Larger series may confirm these preliminary findings

A randomized, double-blind placebo-controlled study to investigate the bacteriophages in patients with сhronic rhinosinusitis with nasal polyps

2021 ◽  
Vol 75 (4) ◽  
pp. 1-5
Author(s):  
Konstantin Dobretsov ◽  
Oxana Kolenchukova ◽  
Alexander Sipkin ◽  
Luisa Bellussi ◽  
Giorgio Ciprandi ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Active Group ◽  
Sinus Surgery ◽  
Controlled Study ◽  
Strongly Correlated ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Polyp Tissue ◽  
Number Of Microorganisms

Background A randomized, double-blind placebo-controlled study investigated the use of bacteriophages in the treatment of chronic rhinosinusitis with nasal polyps. Materials and Methods 40 adult patients with сhronic rhinosinusitis with nasal polyps were examined. All patients underwent functional endoscopic sinus surgery. After the surgery, 20 patients got the intranasal gel with a bacteriophages mixture (Otofag, Micromir, Russia) twice a day for ten weeks, and 20 patients got a placebo. Results On the 10th day, IL-1β secretion diminished (63 mg/ml versus 440 mg/ml in control). There was a decrease in the total number of microorganisms and Enterobacteriaceae (5.7 x 106 CFU/ml versus 1.2 x 109 CFU/ml in control), and the absence of Streptococci (versus 2.1 x 109 CFU/ml in control) on the 30th day of the treatment in the group with the bacteriophages. On the 10th day, a decrease in the activity of secretory IL-1β and IL-8 strongly and very strongly correlated with a total number of microorganisms (r = 0.7; r = 0.9 respectively), as well as secretory IL-8 with Enterobacteriaceae (r = 0.72) and Staphylococci (r = 0.65) in the active group treated with the bacteriophages. On the 30th day, the decrease in serum IL-1β significantly correlated with the total number of microorganisms (r = 0.80) and enterobacteria (r = 0.90) in the active group. Conclusions The administration of bacteriophages restored the balance of microorganisms in the nasal cavity and decreased the inflammatory response in chronic rhinosinusitis with nasal polyps. These changes, such as an inflammation dampening, could theoretically reduce the recurrent growth of polyp tissue in the future.

Evaluation of an innovative new method for quantitation of plasma cells on CD138 immunohistochemistry

2021 ◽  
pp. jclinpath-2021-207828
Author(s):  
Ethan Gantana ◽  
Nomusa Mashigo ◽  
Ibtisam Abdullah ◽  
Ernest Musekwa ◽  
Robert Lohlun ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Plasma Cell ◽  
Plasma Cells ◽  
Intraclass Correlation ◽  
Estimation Method ◽  
High Plasma ◽  
New Method ◽  
Bone Marrow Biopsies ◽  
Cell Counts ◽  
Cell Densities

AimTo compare the frequently used CD138 immunohistochemistry-based method of plasma cell quantitation, to a proposed new method, using interobserver and intraobserver concordance parameters.MethodsArchival CD138 immunohistochemically stained slides made from paraffin-embedded bone marrow biopsies of 33 patients with a confirmed diagnosis of multiple myeloma were used. Light microscopic examination was performed using low magnification lenses (10×) for both the overview estimation method (method A) and the new method (method B), and high magnification lenses (50×), for method B only. For method B, reviewers selected three areas with low, intermediate and high plasma cell densities using 10× lenses. Using a well-defined technique, the 50× lens was then used to count plasma cells as a percentage of all nucleated cells. After blinded relabelling of all the slides, the nine reviewers repeated the plasma cell quantitation using both methods. The plasma cell counts were obtained, and the review times were recorded.ResultsOverall intraobserver concordance was comparable for method A (concordance correlation coefficient (CCC)=0.840) and method B (CCC=0.733). Interobserver concordance for method A (intraclass correlation coefficient (ICC)=0.793 and 0.713) and method B (ICC=0.657 and 0.658) indicated high similarity between reviewers. Method A showed poor interobserver concordance (ICC=0.105) at low plasma cell densities.ConclusionsThe new method is comparable to the frequently used overview estimation method in terms of intraobserver and interobserver concordance, and cost. The new method has superior interobserver concordance at low plasma cell densities. The new method appears more amenable to digital scanning and analysis.

Diagnostic Value of Nasal Cytology in Chronic Rhinosinusitis Assessed by a Liquid-based Cytological Technique

2018 ◽  
Vol 32 (3) ◽  
pp. 181-187 ◽  
Author(s):  
Wenyu She ◽  
Jun Yang ◽  
Chengshuo Wang ◽  
Luo Zhang
Keyword(s):  
Maxillary Sinus ◽  
Chronic Rhinosinusitis ◽  
Inflammatory Cell ◽  
Chronic Sinusitis ◽  
Inferior Turbinate ◽  
Inflammatory Cells ◽  
Diagnostic Value ◽  
Cell Counts ◽  
Nasal Cytology ◽  
Sinus Mucosa

Back ground: Nasal cytology has generally been employed as a useful diagnostic tool in the differentiation of rhinopathies. Objective The aim of this study was to assess the extent and diagnostic value of inflammation of nasal and paranasal sinus mucosa in chronic rhinosinusitis patients by employing a combination of nasal brushings and a liquid-based cytological technique. Methods Forty-eight patients with chronic sinusitis and 20 control subjects without any sign of sinusitis undergoing endoscopic surgery, although not all underwent endoscopic sinus surgery, were recruited to the study. Nasal cytology samples were collected from all subjects using nasal brush and processed a liquid-based cytological technique for evaluation of total and differential inflammatory cell counts. Biopsies were also taken from the inferior turbinates from its anterior margin in all subjects and from identical lateral maxillary sinus mucosa in patients with chronic sinusitis during surgery and routinely processed for staining and evaluation of inflammatory cells. Results Total and individual inflammatory cell counts in nasal brushings were significantly correlated with the respective inflammatory cell counts in biopsies obtained from the inferior turbinate (eosinophils: r = .519 and P = .016; neutrophils: r = .540 and P = .012; lymphocytes: r = .540 and P = .011) but not in biopsies obtained from the maxillary sinus. No correlation was observed between the inflammatory cells in biopsies from the inferior turbinate and biopsies from the maxillary sinus. The liquid-based cytological technique showed higher sensitivity (94.1%), specificity (76.9%), and positive predictive value (84.2%) for inflammation in the inferior turbinates than for inflammation in the maxillary sinus (sensitivity = 63.4% and positive predictive value = 63.4%). Conclusion Nasal cytology evaluated by use of nasal brushings processed by a liquid-based cytological technique is likely to have higher diagnostic value for the inflammatory response in noninfectious rhinitis than in chronic rhinosinusitis.

scholarly journals Inflammatory cell predominance and patterns in chronic rhinosinusitis with and without nasal polyposis patients

2019 ◽  
Vol 4 (6) ◽  
pp. 573-577 ◽  
Author(s):  
Michael J. Marino ◽  
J. Omar Garcia ◽  
Matthew A. Zarka ◽  
Devyani Lal
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Polyposis ◽  
Inflammatory Cell

scholarly journals Numerous IgG4-positive plasma cells are ubiquitous in diverse localised non-specific chronic inflammatory conditions and need to be distinguished from IgG4-related systemic disorders

2011 ◽  
Vol 64 (3) ◽  
pp. 237-243 ◽  
Author(s):  
Johanna D Strehl ◽  
Arndt Hartmann ◽  
Abbas Agaimy
Keyword(s):  
Inflammatory Response ◽  
Oral Cavity ◽  
Plasma Cell ◽  
Plasma Cells ◽  
Systemic Disease ◽  
High Power Field ◽  
Histopathological Features ◽  
Inflammatory Conditions ◽  
Cell Counts ◽  
Gastrointestinal Lesions

BackgroundIgG4-related systemic fibrosclerosis is a recently defined disorder characterised by a diffuse or tumefactive inflammatory reaction rich in IgG4-positive plasma cells associated with sclerosis and obliterative phlebitis. Although characteristic histopathological features are essential for the diagnosis of these disorders, to date there exists no consensus regarding the cut-off values used to define a ‘significant IgG4-positive plasma cell count,’ and data regarding the distribution of IgG4-positive plasma cells under common (non-specific) inflammatory conditions are lacking.MethodsThe authors analysed 121 randomly selected histopathological specimens containing prominent lymphoplasmacytic infiltrates (11 obstructive sialadenitis, 27 inflammatory lesions of the oral cavity, 24 inflammatory gastrointestinal lesions, 15 rheumatoid synovitis, 15 non-specific synovitis, eight non-specific dermatitis and 21 primary carcinomas with a peritumoral inflammatory response). For comparison, seven cases of sclerosing sialadenitis (Küttner tumour) were examined.ResultsHigh counts of IgG4 plasma cells were found in sclerosing sialadenitis (mean 40/high-power field (hpf)), contrasting sharply with sialadenitis caused by sialolithiasis (mean 3/hpf). Greatly varied but generally high counts of IgG4-positive plasma cells were also seen in several of the other lesions, particularly in rheumatoid synovitis (mean 55/hpf), oral cavity lesions (mean 79/hpf) and carcinoma-associated inflammatory response (mean 24/hpf). The mean IgG4/IgG ratios for all lesions varied between 0 and 0.4.ConclusionsThe results demonstrate the ubiquitous occurrence of variably high numbers of IgG4-positive plasma cells under diverse non-specific inflammatory conditions, indicating that high IgG4-positive plasma cell counts and high IgG4/IgG ratios per se do not reliably distinguish IgG4-associated systemic disease from non-specific conditions, and that the IgG4 counts must be cautiously interpreted in the context of appropriate clinical and histopathological features.

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