Proteomic analysis of mucus from chronic rhinosinusitis patients with or without nasal polyps
Ontology highlight
ABSTRACT:
INSTRUMENT(S): LTQ
ORGANISM(S): Homo Sapiens (human)
SUBMITTER: 
Benjamin Neely
LAB HEAD: Richard R. Drake
PROVIDER: PXD004144 | Pride | 2016-05-26
REPOSITORIES: Pride
Similar Datasets
Project description:Patients with chronic rhinosinusitis (CRS) have abnormal immune responses triggered by a variety of infectious agents, airborne toxins and fungi. Respiratory epithelial cells serve as relay stations capable of amplifying or augmenting cues received from external stimuli to nearby immune cells located in the sinus mucosa. Previous studies have identified increases in complement components and complement gene expression in the mucosa of patients with atopic CRS with nasal polyps (CRSwNP). As part of a larger study, we used shotgun proteomics to quantify changes in mucus proteins between patients with and without nasal polyps.
2016-07-22 | MSV000079984 | MassIVE
Project description:Chronic rhinosinusitis (CRS) is a heterogeneous disease characterized by local inflammation of the upper airways which persists for at least 12 weeks. CRS is one of the most common chronic diseases in adults in the United States, affecting over 30 million Americans. CRS is frequently divided into 2 types: CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). Histologic studies have demonstrated significant tissue eosinophilia in CRSwNP. T cells in the mucosa are elevated in both forms of CRS and are skewed towards Th2 cytokine expression in CRSwNP. However pathogenic role of CRS has not been fully explored. To screen for pathogenic factors in CRS, we performed a microarray study. We collected uncinate tissues (UT) from 6 subjects with CRSsNP, 6 subjects with CRSwNP and 6 control subjects and nasal polyp (NP) tissues from 6 subjects with CRSwNP and then evaluated gene expression profiles using Affymetrix Human Genome U133 plus 2.0 array. We collected UT from control subjects and pathients with CRSsNP and CRSwNP, and nasal polyp tissues from patients with CRSwNP. Gene expression profiles were evaluated using Human Genome U133 plus 2.0 array (Affymetrix).
2012-03-27 | E-GEOD-36830 | biostudies-arrayexpress
Project description:Chronic rhinosinusitis (CRS) is a heterogeneous disease characterized by local inflammation of the upper airways which persists for at least 12 weeks. CRS is one of the most common chronic diseases in adults in the United States, affecting over 30 million Americans. CRS is frequently divided into 2 types: CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). Histologic studies have demonstrated significant tissue eosinophilia in CRSwNP. T cells in the mucosa are elevated in both forms of CRS and are skewed towards Th2 cytokine expression in CRSwNP. However pathogenic role of CRS has not been fully explored. To screen for pathogenic factors in CRS, we performed a microarray study. We collected uncinate tissues (UT) from 6 subjects with CRSsNP, 6 subjects with CRSwNP and 6 control subjects and nasal polyp (NP) tissues from 6 subjects with CRSwNP and then evaluated gene expression profiles using Affymetrix Human Genome U133 plus 2.0 array.
2012-03-28 | GSE36830 | GEO
Project description:Primarily on the basis of the absence or presence of nasal polyps (NPs)Chronic Rhinosinusitis(CRS) is often classified as CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). CRSwNP remains a signifificant public health problem with a considerable socioeconomic burden. The previous research reported that the pathophysiology of CRSwNP is a complex multifactorial disease. There have been many studies on its etiology, but its pathogenesis remains unclear. Dysregulated expression of miRNAs has been shown in psoriasis, rheumatoid arthritis, pulmonary fibrosis, and allergic asthma. CircRNA is also involved in the inflammatory diseases, such as in rheumatoid arthritis, septic acute kidney injury, myocardial ischemia/reperfusion injury, epsis-induced liver damage and so on. Especially, the function of miRNA is research hotspots, including in CRSwNP. While, the study on circRNA in CRSwNP is still unknown. Additionally, according to the different percentage of eosinophil, CRSwNP was further divided into eosinophilic CRSwNP (ECRSwNP) and non-ECRSwNP. However, little is known about the functions of circRNAs and miRNAs in CRSwNP. The study is aimed to investigate the expression of circular RNA (circRNA) and microRNA (miRNAs) in CRSwNP and control group, to conform whether these molecules are related with the occurrence and development of CRSwNP. We aimed to compare the microarray expression profile of miRNAs and circRNAs in nasal polyps of CRSwNP and normal nasal mucosa from control subjects.
2021-03-23 | GSE169376 | GEO
Project description:Primarily on the basis of the absence or presence of nasal polyps (NPs)Chronic Rhinosinusitis(CRS) is often classified as CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). CRSwNP remains a signifificant public health problem with a considerable socioeconomic burden. The previous research reported that the pathophysiology of CRSwNP is a complex multifactorial disease. There have been many studies on its etiology, but its pathogenesis remains unclear. Dysregulated expression of miRNAs has been shown in psoriasis, rheumatoid arthritis, pulmonary fibrosis, and allergic asthma. CircRNA is also involved in the inflammatory diseases, such as in rheumatoid arthritis, septic acute kidney injury, myocardial ischemia/reperfusion injury, epsis-induced liver damage and so on. Especially, the function of miRNA is research hotspots, including in CRSwNP. While, the study on circRNA in CRSwNP is still unknown. Additionally, according to the different percentage of eosinophil, CRSwNP was further divided into eosinophilic CRSwNP (ECRSwNP) and non-ECRSwNP. However, little is known about the functions of circRNAs and miRNAs in CRSwNP. The study is aimed to investigate the expression of circular RNA (circRNA) and microRNA (miRNAs) in CRSwNP and control group, to conform whether these molecules are related with the occurrence and development of CRSwNP. We aimed to compare the microarray expression profile of miRNAs and circRNAs in nasal polyps of CRSwNP and normal nasal mucosa from control subjects.
2021-03-23 | GSE169375 | GEO
Project description:Background: Alternative polyadenylation (APA) is emerging as a widespread mechanism of gene regulation. The usage of APA sites allows a single gene to encode multiple mRNA transcripts with different 3'-untranslated region (3'UTR) lengths. Many disease processes reflect the importance of the regulation of APA site switching. The objective of this study was to explore the profiling of tandem APA sites in nasal polyps compared with nasal uncinate process mucosa. Methods: Sequencing of APA sites (SAPAS) based on second-generation sequencing technology was undertaken to investigate the use of tandem APA sites and identify gene expression patterns in samples from the nasal polyps and nasal uncinate process mucosa of two patients with chronic rhinosinusitis with nasal polyps. The findings of the SAPAS analysis were validated via quantitative reverse-transcription polymerase chain reaction (qRT-PCR). Results: First, the results showed a switching of 3'UTR lengths in nasal polyps compared with nasal uncinate process mucosa. From the two patients, 105 overlapping genes in the nasal polyps were switched to distal poly(A) sites, and 90 such genes were switched to proximal poly(A) sites. Several Gene Ontology terms were enriched in the list of genes with switched APA sites, including transcription regulation, cell cycle, apoptosis, and metabolism. Second, we detected genes that showed differential expression with at least a 3-fold difference between nasal polyp tissue and nasal uncinate process mucosa. Between the two sample types, 627 genes exhibited differential expression. The qRT-PCR results confirmed our SAPAS results. Conclusion: APA site-switching events of 3'UTRs are prevalent in nasal polyp tissue, and the regulation of gene expression mediated by APA may play an important role in the formation and persistence of nasal polyps. Our results may provide new insights into the possible pathophysiologic processes involved in nasal polyps. Investigate the use of tandem APA sites of 3'ends of mRNAs using second-generation sequencing technology.
2012-12-31 | E-GEOD-39957 | biostudies-arrayexpress
Project description:NSAID-exacerbated respiratory disease (N-ERD) represents a particularly severe endotype of chronic rhinosinusitis with nasal polyps (CRSwNP), which affects around 10-16% of CRSwNP patients. N-ERD is characterized by severe and refractory nasal polyposis, bronchial asthma and intolerance to non-steroidal anti-inflammatory drugs (NSAIDs), including aspirin. Today, the pathogenesis of N-ERD remains incompletely understood and curative treatments are lacking. Using a global transcriptomic approach, we identified local changes between the mucosa of N-ERD nasal polyps and healthy control inferior turbinates. Nasal brushing samples were collected from inferior turbinates of healthy controls and nasal polyps of N-ERD patients under anterior rhinoscopy and stored at -80°C in RNAprotect until RNA isolation and RNAseq.
2020-06-30 | E-MTAB-7962 | biostudies-arrayexpress
Project description:Chronic rhinosinusitis with nasal polyps (CRSwNP) is characterized by persistent symptoms associated to the development of nasal polyps. To this day, the molecular mechanisms involved are still not well defined. However, it has been suggested that a sustained inflammation as allergy is involved in its onset. In this pilot study, we aimed to look into the effect of the allergic status of the patient and in their underlying mechanisms. To achieve this, we recruited 22 patients with CRSwNP and classified them in non-allergic and allergic using ImmunoCAP ISAC molecular diagnosis. Plasma samples were analyzed using liquid chromatography coupled to mass spectrometry (LC-MS). Subsequently, the identified changed metabolites from plasma that were commercially available were then analyzed by targeted analysis in some nasal polyps. Additionally, nasal polyp and mucosa tissue samples were examined for eosinophils and neutrophils. We found that 9 out of the 22 patients were sensitized to some aeroallergens (named as allergic). The other 13 patients had no sensitizations (non-allergic). Regarding metabolomics, we found that bilirubin, cortisol, lysophosphatidylcholines (LPCs) 16:0, 18:0 and 20:4 and lysophosphatidylinositol (LPI) 20:4, metabolites that are usually related to a sustained allergic inflammation, were unexpectedly increased in the plasma of non-allergic patients with CRSwNP compared to allergic patients with CRSwNP. LPC 16:0, LPC 18:0 and LPI 20:4 metabolites followed the same trend in the nasal polyp as they did in plasma. Comparison of nasal polyps with nasal mucosa tissue showed a significant increase in eosinophils (p < 0.001) and neutrophils (p < 0.01) in allergic patients with CRSwNP. There were also more eosinophils in the polyps of non-allergic patients with CRSwNP than in their nasal mucosa (p <0.01). The polyps from non-allergic patients with CRSwNP had less eosinophils than the polyps of allergic patients with CRSwNP (p < 0.05). Our data suggests that there is a systemic inflammatory response associated to CRSwNP in the absence of allergy, which could be accountable for the nasal polyp development. Allergic patients with CRSwNP presented a higher number of eosinophils located in nasal polyps suggesting that eosinophilia might be connected to the development of nasal polyps in these patients.
2021-03-17 | ST001734 | MetabolomicsWorkbench
Project description:Chronic rhinosinusitis with nasal polyps (CRSwNP) is characterized by persistent symptoms associated to the development of nasal polyps. To this day, the molecular mechanisms involved are still not well defined. However, it has been suggested that a sustained inflammation as allergy is involved in its onset. In this pilot study, we aimed to look into the effect of the allergic status of the patient and in their underlying mechanisms. To achieve this, we recruited 22 patients with CRSwNP and classified them in non-allergic and allergic using ImmunoCAP ISAC molecular diagnosis. Plasma samples were analyzed using liquid chromatography coupled to mass spectrometry (LC-MS). Subsequently, the identified changed metabolites from plasma that were commercially available were then analyzed by targeted analysis in some nasal polyps. Additionally, nasal polyp and mucosa tissue samples were examined for eosinophils and neutrophils. We found that 9 out of the 22 patients were sensitized to some aeroallergens (named as allergic). The other 13 patients had no sensitizations (non-allergic). Regarding metabolomics, we found that bilirubin, cortisol, lysophosphatidylcholines (LPCs) 16:0, 18:0 and 20:4 and lysophosphatidylinositol (LPI) 20:4, metabolites that are usually related to a sustained allergic inflammation, were unexpectedly increased in the plasma of non-allergic patients with CRSwNP compared to allergic patients with CRSwNP. LPC 16:0, LPC 18:0 and LPI 20:4 metabolites followed the same trend in the nasal polyp as they did in plasma. Comparison of nasal polyps with nasal mucosa tissue showed a significant increase in eosinophils (p < 0.001) and neutrophils (p < 0.01) in allergic patients with CRSwNP. There were also more eosinophils in the polyps of non-allergic patients with CRSwNP than in their nasal mucosa (p <0.01). The polyps from non-allergic patients with CRSwNP had less eosinophils than the polyps of allergic patients with CRSwNP (p < 0.05). Our data suggests that there is a systemic inflammatory response associated to CRSwNP in the absence of allergy, which could be accountable for the nasal polyp development. Allergic patients with CRSwNP presented a higher number of eosinophils located in nasal polyps suggesting that eosinophilia might be connected to the development of nasal polyps in these patients.
2021-03-17 | ST001733 | MetabolomicsWorkbench
Project description:RNA sequencing (RNAseq) is being used to study inflammatory pathways in chronic rhinosinusitis (CRS). Our goal was to probe validity of tissue eosinophilia as a metric to study RNAseq in CRS. The study was conducted on prospectively enrolled subjects undergoing sinonasal surgery. Subjects were categorized as control, CRS, CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). CRS was also categorized by tissue eosinophil levels per high power field (EOS/HPF) as <10 EOS/HPF or ≥10 EOS/HPF. Ethmoidal tissue samples were processed, differentially expressed (DE) genes were calculated and Ingenuity pathway analysis (IPA) performed.Controls separated clearly from CRS by both study criteria (polyp status, EOS/HPF). In both analyses, CRS differentiated into two distinct CRS subgroups. However, heatmaps showed greater homogeneity within each CRS subtype when studied by eosinophilia versus polyp status. Overall, high differential gene expression was found in CRS versus controls, with 736 statistically significant differentially expressed (DE) genes. On comparison between between CRSwNP and CRSsNP, 60 DE genes were found and on analyzing by tissue EOS/HPF, 110DE genes were statistically significant between CRS <10 EOS/HPF and CRS ≥10 EOS/HPF analyses. Tissue eosinophilia as a metric was further validated by finding of IL 17 signalling pathway between <10EOS/HPF (increased) versus ≥10 EOS/HPF samples on pathway analysis. As a metric, tissue eosinophilia is at least as effective as analysis by polyp status for RNA sequencing and may potentially offer superior insights into mechanistic pathways.
2022-03-21 | GSE198950 | GEO