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Serpinb3a contributes to early skin inflammation following allergen exposure

ABSTRACT: Serpinb3a knockout mice show attenuated Transepidermal Water Loss (TEWL) and S100A8 expression (an early inflammatory marker) following treatment with Aspergillus fumigatus extract. The aim of the RNAseq experiments was to provided mechanistic insight for the role of Serpinb3a by identifying early differences in gene expression following allergen exposure.

ORGANISM(S): Mus musculus

PROVIDER: GSE54640 | GEO | 2014/10/01

SECONDARY ACCESSION(S): PRJNA237659

REPOSITORIES: GEO

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Serpinb3a contributes to early skin inflammation following allergen exposure

Project description:Serpinb3a knockout mice show attenuated Transepidermal Water Loss (TEWL) and S100A8 expression (an early inflammatory marker) following treatment with Aspergillus fumigatus extract. The aim of the RNAseq experiments was to provided mechanistic insight for the role of Serpinb3a by identifying early differences in gene expression following allergen exposure. Wild type Balb/c and Serpinb3a null mouse backs were shaved and 24 hours later a patch containing 200ug of Aspergillus fumigatus extract was applied to the skin. After 3 days the patch was removed and the skin was harvested after an additional 24 hours.

2014-10-01 | E-GEOD-54640 | biostudies-arrayexpress

Fungal allergen extracts-induced gene expression in airway epithelial cells (NCI-H292)

2011-07-07 | GSE22323 | GEO

Expression data from peripheral blood - blood draws at Pre and Post time points of Allergen inhalation challenge (ER and DR)

Project description:To determine differential gene expression in peripheral blood of asthmatic individuals undergoing allergen inhalation challenge between early responders (ERs) and dual responders (DRs) following allergen inhalation challenge

2013-09-20 | GSE40240 | GEO

Response of A549 cells treated with Aspergillus fumigatus

Project description:This SuperSeries is composed of the following subset Series: GSE24983: Response of A549 cells treated with Aspergillus fumigatus [WT-CF_vs_WT-GC] GSE24984: Response of A549 cells treated with Aspergillus fumigatus [WT-GC_vs_PrtT-GC] GSE24985: Response of A549 cells treated with Aspergillus fumigatus [WT-CF_vs_PrtT-CF] Refer to individual Series

2010-10-29 | E-GEOD-24986 | biostudies-arrayexpress

Fungal allergen extracts-induced gene expression in airway epithelial cells (NCI-H292)

Project description:We compared the gene expression stimulated with fungal extracts from Aspergillus (A.) fumigatus, Alternaria (A.) alternata, or Penicillium (P.) notatum in NCI-H292 (a human bronchial epithelial cell line) to search Allergic bronchopulmonary mycosis (ABPM)-related genes. We identified a mucin-related MUC5AC gene, the expression of which was selectively induced by A. fumigatus. Total RNA from NCI-H292 cells stimulated for 24 h with the A. fumigatus, A. alternata, or P. notatum fungi extracts was extracted and subjected to microarray analysis. Each experiments were perfomed once for each stimulus.

2011-07-07 | E-GEOD-22323 | biostudies-arrayexpress

Comparative genomic hybridization of Aspergillus fumigatus Af71, Aspergillus fumigatus Af294, Aspergillus clavatus, Neosartorya fenneliae and Neosartorya fischeri with Aspergillus fumigatus Af293

Project description:Genomic DNA from five strains, Aspergillus fumigatus Af71, Aspergillus fumigatus Af294, Aspergillus clavatus, Neosartorya fenneliae, and Neosartorya fischeri, were co-hybridized with that of Aspergillus fumigatus Af293 and compared.

2005-05-15 | E-MEXP-333 | biostudies-arrayexpress

Temporal dynamics of human cells co-cultivated with Aspergillus fumigatus

Project description:This SuperSeries is composed of the following subset Series: GSE21353: Gene expression profiles of human immature dendritic cells after 3h, 6h and 12h of co-cultivation with Aspergillus fumigatus GSE28806: The temporal dynamics of differential gene expression in human alveolar epithelial and endothelial cells interacting with the human pathogenic mould Aspergillus fumigatus in vitro Refer to individual Series

2012-04-16 | E-GEOD-28809 | biostudies-arrayexpress

Expression profiles of sorted murine lung Eosinophils following allergen challenge

Project description:The eosinophil transcriptome analysis indicated a robust transcription change in eosinophils following allergen challenge in the lung.

2014-05-19 | GSE57757 | GEO

Allergen detection in commercial foods

Project description:The frequent use of precautionary food allergen labeling statements such as “may contain” poses challenges to allergic individuals relying on such labeling to determine whether a food is safe to consume. To survey the frequency at which these precautionary statements indicate allergen contamination in commercial foods we developed a multiplexed liquid chromatography-mass spectrometry assay targeting 14 common allergens. For each allergen, we selected two or more tryptic peptides belonging to two or more clinically-recognized allergenic proteins by following one of two approaches. For certain allergenic proteins, a wealth of existing mass spectrometry literature suggests ideal tryptic peptide targets. In these cases, such for milk proteins Bos d 5 and Bos d 9, as well as peanut protein Ara h 3, we chose peptides using the Allergen Peptide Browser (APB), a freely available online database we developed. To choose peptides for the remaining allergenic proteins, as well as validate our choices, we applied shotgun proteomics to pure allergen protein extracts of the aforementioned allergens.

2019-07-17 | PXD007688 | Pride

Brainstem Dbh+ Neurons Control Chronic Allergen-Induced Airway Hyperreactivity

Project description:Exaggerated airway constriction triggered by exposure to irritants such as allergen, also called hyperreactivity, is a hallmark of asthma and can be life-threatening. Aside from immune cells, vagal sensory neurons are important for airway hyperreactivity 1-4. However, the identity and signature of the downstream nodes of this adaptive circuit remains poorly understood. Here we show that Dbh+ neurons in the nucleus of the solitary tract (nTS) of the brainstem, and downstream neurons in the nucleus ambiguus (NA), are both necessary and sufficient for chronic allergen-induced airway hyperreactivity. We found that repeated exposures of mice to inhaled allergen activates nTS neurons in a mast cell-, interleukin 4 (IL-4)- and vagal nerve-dependent manner. Single-nucleus RNA-seq followed by RNAscope quantification of the nTS at baseline and following allergen challenges reveals that a Dbh+ population is preferentially activated. Ablation or chemogenetic inactivation of Dbh+ nTS neurons blunted, while chemogenetic activation promoted hyperreactivity. Viral tracing indicates that Dbh+ nTS neurons, capable of producing norepinephrine, project to the NA, and NA neurons are necessary and sufficient to relay allergen signals to postganglionic neurons that then directly drive airway constriction. Focusing on transmitters, delivery of norepinephrine antagonists to the NA blunted allergen-induced hyperreactivity. Together, these findings provide molecular, anatomical and functional definitions of key nodes of a canonical allergen response circuit. The knowledge opens the possibility of targeting neural modulation as an approach to control allergen-induced airway constriction.

2024-04-15 | GSE200003 | GEO

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