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Proteomic analysis of mucus from chronic rhinosinusitis patients with or without nasal polyps

ABSTRACT: 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.

INSTRUMENT(S): LTQ

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Benjamin Neely

LAB HEAD: Richard R. Drake

PROVIDER: PXD004144 | Pride | 2016-05-26

REPOSITORIES: Pride

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			Action	DRS
	05292014_Mucus-02-1 - F002343.pride.mztab.gz	Mztab
	05292014_Mucus-02-1-F002343.dat	Other
	05292014_Mucus-02-1-F002343.mzid.gz	Mzid
	05292014_Mucus-02-1.RAW	Raw
	05292014_Mucus-02-1.mgf	Mgf

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Proteomic analysis of mucus from chronic rhinosinusitis patients with or without nasal polyps

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

Gene expression analysis of Chronic rhinosinusitis

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).

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Transcription profiling of human sinus mucosa from cystic fibrosis, chronic rhinosinusitis patients and controls

Project description:Our data demonstrates an increased number of submucosal glands in the sinus mucosa of pediatric patients with chronic rhinosinusitis (CRS). Additionally, data in the literature indicates differentially altered expression of innate markers of immunity and of inflammatory mediators in the sinus mucosa of adult patients with cystic fibrosis, non-CF controls, and controls. Experiment Overall Design: Analyses will focus on inflammatory/immune response genes to identify genes in CRS or CF patients that are involved in pathways that impact on pathogenesis in these diseases. Analysis will also focus on genes in developmental pathways to identify mediators implicated in the development of submucosal glandular hyperplasia in pediatric patients with CRS.

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Expression data from ECRSwNP, non-ECRSwNP and control (miRNA)

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.

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Expression data from ECRSwNP, non-ECRSwNP and control (CircRNA)

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Project description:Chronic rhinosinusitis with nasal polyps is a hallmaerk disease in the field of upper airway immunity and chronic inflammation. Diverse inflammatory patterns between nasal polyps have been described in patients that hail from disparate racial and geographic backgrounds. However, it remains unclear whether these immunologic differences in nasal polyps between racial groups are driven by unique molecular mechanisms. We interrogated the gene expression profiles of nasal polyp tissues from Western (United States) and East Asian (Japan) descent, compared to ethmoid sinus tissue controls.

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Inflammatory molecular endotypes of nasal polyps derived from Caucasian and Japanese populations

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Mucus overproduction

2008-02-08 | GSE10406 | GEO

A global analysis of tandem 3'UTRs in eosinophilic chronic rhinosinusitis with nasal polyps

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.

2012-12-31 | GSE39957 | GEO

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