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Gene network analysis for identification of microRNA biomarkers for asthma [Serum_miRNASeq]

ABSTRACT: To analyze circulating miRNA signatures using a house dust mite model (HDM) of asthma. microRNA sequencing (miRNA-seq) was performed using serum from BALB/c mice (male and female, ages 6-8 weeks old).

ORGANISM(S): Mus musculus

PROVIDER: GSE214936 | GEO | 2022/12/26

REPOSITORIES: GEO

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Gene network analysis for identification of microRNA biomarkers for asthma [Lung_miRNASeq]

Project description:To analyze lung miRNA signatures using a house dust mite model (HDM) of asthma. microRNA sequencing (miRNA-seq) from BALB/c mice (male and female, ages 6-8 weeks old) lung tissue was performed.

2022-12-26 | GSE214935 | GEO

Gene network analysis for identification of microRNA biomarkers for asthma [Lung_RNASeq]

Project description:To identify relevant mRNA targets of differentially dysregulated lung miRNA signatures of a house dust mite mouse (HDM) model of asthma. cDNA libraries were constructed using the same lung RNA samples as the miRNA libraries preparation.

2022-12-26 | GSE214934 | GEO

Gene expression patterns in allergen-driven CD4 T cell responses from human atopics with or without asthma.

Project description:PBMC from house dust mite (HDM) sensitized atopics with or without asthma (or nonallergic controls) were cultured in the presence or absence of HDM extract for 24 hours. At the termination of the cultures, immunomagnetic separation was performed to purify CD4 T cells. Gene expression was profiled on microarrays. The study design consisted of 72 subjects, and two experimental conditions (medium control, HDM stimulation).

2016-02-25 | E-GEOD-73482 | biostudies-arrayexpress

Gene expression patterns in allergen-driven CD4 T cell responses from human atopics with or without asthma.

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Overexpression of Dimethylarginine Dimethylaminohydrolase 1 Attenuates Airway Inflammation in Mouse Models of Asthma

Project description:Levels of asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase, are increased in lung, sputum, exhaled breath condensate and plasma samples from asthma patients. ADMA is metabolized primarily by dimethylarginine dimethylaminohydrolase 1 (DDAH1) and DDAH2. We determined the effect of DDAH1 overexpression on development of allergic inflammation in mouse models of asthma. Wild type and DDAH1-transgenic mice were challenged with PBS or house dust mite (HDM). Airway inflammation was assessed by bronchoalveolar lavage (BAL) total and differential cell counts. Gene expression in lungs was determined by RNA-Seq and RT-quantitative PCR (qPCR). The expression of DDAH1 and DDAH2 was decreased in the lungs of mice following HDM exposure. Transgenic overexpression of DDAH1 resulted in decreased BAL total cell and eosinophil numbers following HDM exposure. Total IgE levels in serum and BAL fluid were decreased in HDM-exposed DDAH1-transgenic mice compared to HDM-exposed wild type mice. RNA-Seq results showed downregulation of genes in inducible nitric oxide synthase (iNOS) signaling pathway in PBS-treated DDAH1 transgenic mice versus PBS-treated wild type mice and downregulation of genes in IL-13/FOXA2 signaling pathway in HDM-treated DDAH1 transgenic mice versus HDM-treated wild type mice. Our findings suggest that decreased expression of DDAH1 in airway epithelial cells may contribute to allergic asthma and overexpression of DDAH1 attenuates allergen-induced airway inflammation through modulation of Th2 responses. mRNA profiles of WT and DDAH1-transgenic mice treated with PBS or house dust mite (HDM).

2013-12-03 | E-GEOD-49047 | biostudies-arrayexpress

Lung biopsies from sensitized or control rhesus macaques

2011-11-30 | GSE23327 | GEO

Lung biopsies from sensitized or control rhesus macaques

Project description:The aim of this study was to investigate differential expression in a house dust mite (HDM) exposure model of asthma in rhesus macaques. HDM sensitization was performed by subcutaneous injection of HDM followed by intranasal HDM for 2-3 hours twice a week. Animals were mock-sensitized (PBS) or sensitized to HDM antigen. Gene expression was measured in lung biopsies before and fifteen weeks after treatment.

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Targeting mitochondrial reactive oxygen species alleviates allergic airway disease in a mouse model of obese allergic asthma

Project description:Obesity is associated with severe, difficult to control asthma, and increased airway oxidative stress. Mitochondrial reactive oxygen species (mROS) are an important source of oxidative stress leading us to hypothesize that targeting mROS in obese allergic asthma might be an effective treatment strategy. Using a mouse model of house dust mite (HDM) induced allergic airway disease in mice fed a low- (LFD) or high-fat diet (HFD), and the mitochondrial antioxidant MitoQuinone (MitoQ); we investigated the effects of obesity and mROS on airway inflammation, remodelling and airway hyperreactivity (AHR). HDM induces airway inflammation, remodelling and hyperreactivity in both lean and obese mice. Obese allergic mice showed increased lung tissue eotaxin levels, airway tissue eosinophilia and AHR when compared to lean allergic mice. MitoQ reduced markers of airway inflammation, remodelling and hyperreactivity in both lean and obese allergic mice, and tissue eosinophilia in obeseHDM mice. mROS regulates cell signalling by protein oxidation of multiple downstream targets: MitoQ reduced HDM-induced cysteine-sulfenylation of several proteins including those involved in the unfolded protein response (UPR). In summary, mROS mediates the development of allergic airway disease and hence MitoQ might be effective for the treatment for asthma, and specific features of obese asthma.

2023-06-02 | PXD029715 | Pride

Alteration in gene expression in the lung following neonatal RSV infection

Project description:mRNA expression data from BALB/c mice which were infected intranasally with Respiratory Syncytial Virus (or Hep-2 cell lysate control) at 1 week old and challenged with PBS or house dust mite (HDM) extract as adults. Experimental groups: RH – neonatal RSV, adult HDM, RP – neonatal RSV, adult PBS, HH – neonatal Hep-2, adult HDM and HP – neonatal Hep-2, adult PBS.

2019-03-19 | E-MTAB-3654 | biostudies-arrayexpress

Effects of endotoxin abundance in house dust mite on the molecular phenotype of inflammation and tissue response in mouse lung

Project description:We report that the abundance of endotoxin in commercially available house dust mite extracts significantly alters the lung transcriptome and secretome in a mouse model of allergic asthma. Studies using the HDM model of asthma in mice should consider reporting the abundance of endotoxin in their commercial HDM stocks in an effort to standardize the protocols and to facilitate consistant and reliable comparison between different studies.

2020-07-15 | GSE116967 | GEO

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