Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Exposure of Air-Liquid-Interface bronchial epithelial cells to whole birch pollen

ABSTRACT: Exposure of Air-Liquid-Interface bronchial epithelial cells to whole birch pollen

PROVIDER: PRJNA745951 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Exposure of Air-Liquid-Interface bronchial epithelial cells to whole birch pollen

Project description:Human BEAS-2B were exposed to whole birch pollen using a Pollen Sedimentation Chamber. The chamber was designed to be able to dose cells to dry whole pollen. The goal was to understand the reaction of human epithelial cells to a human real life pollen exposure.

2021-11-03 | GSE179942 | GEO

Effect of the primed exposure of Diesel CAST model aerosol in air-liquid interface BEAS-2B cells exposed to native birch pollen

Project description:BEAS-2B cells, at air-liquid interface, were exposed to Diesel CAST model aerosol in an vitro exposure system and, later, to native birch pollen using a Pollen Sedimentation Chamber stabilished before. The same exposure was performed, without the primed anthropogenic exposure. The goal was to understand the effect of pre-exposure to a model diesel aerosol in allergic sensitization, using a model stabilished that mimics a real life exposure as closer as possible.

2022-03-05 | GSE185399 | GEO

Gene expression analysis of nasal mucosa in birch pollen allergic and non-allergic individuals upon nasal provocation with birch pollen

Project description:Birch pollen is a significant cause of allergic rhinitis, yet the mechanisms of sensitization is to be understood completely. Here, we investigate the changes in gene expression of birch pollen allergic and non-allergic individuals that occur as a result of nasal provocation with birch pollen.

2024-12-17 | GSE261239 | GEO

Impact of sequential exposures to allergens and ultrafine particles on human bronchial epithelial BEAS-2B cells at the air liquid interface

Project description:BEAS-2B cells, at air liquid interface, were exposed to birch pollen extract or house dust mite extract in a cloud chamber and, later, to UFP rich combustion aerosols in an in vitro exposure system. As control the same exposure was performed without allergen containing extracts. The goal was to understand the effect of allergenic pre-exposure to a UFP rich combustion aerosol exposed cells and their effect on allergic sensitization, using an established model that mimics more closely real life exposures.

2023-03-01 | GSE216533 | GEO

miRNA expression in differentiating primary human bronchial epithelial cells cultured at air-liquid-interface

Project description:We performed microarray analysis of miRNA expression in differentiating primary human bronchial epithelial cells. The goal was to identify miRNAs that are dynamically expressed under airway epithelial development. Cells were cultured at air-liquid-interface and were harvested day 4, 6, 8, 11, 13, 15, 18, 20 and 22 for analysis.

2021-01-09 | GSE164448 | GEO

Protoemics of nasal and bronchial mucus from primary human airway epithelial cells grown at air-liquid interface.

Project description:Differentiated primary human respiratory epithelial cells grown at air-liquid interface have become a widely used cell culture model of the human conducting airways. These cultures contain secretory cells such as goblet and club cells, which produce and secrete mucus. Here, we characterize the composition of mucus harvested from airway cultures of nasal and bronchial origin. We find that despite inter-donor variability, the protein content and composition is very similar between nasal and bronchial mucus. However, subtle differences in the abundance of individual components in nasal versus bronchial mucus can influence its antimicrobial properties.

2025-08-13 | PXD066146 | Pride

Liquid Application Dosing Alters the Physiology of Air-Liquid Interface Primary Bronchial Epithelial Cell/Lung Fibroblast Co-Cultures and In Vitro Testing Relevant Endpoints

Project description:Liquid Application Dosing Alters the Physiology of Air-Liquid Interface Primary Bronchial Epithelial Cell/Lung Fibroblast Co-Cultures and In Vitro Testing Relevant Endpoints

2023-08-08 | GSE198884 | GEO

Antigen specific human conventional T cells (CD154+) or regulatory T cells (CD137+) directed agains A. fumigatus or Birch pollen lysate isolated from Birch pollen allergic patients or healthy controls.

Project description:Foxp3+ regulatory T cells (Treg) play a central role for tolerance against self and innocuous environmental antigens. However, the role of antigen-specificity for Treg-mediated tolerance is only incompletely understood. Here we show by direct ex vivo characterization of human CD4+ T cells, that the response against innocuous airborne antigens, such as plant pollen or fungal spores, is dominated by memory-like antigen-specific Treg. Surprisingly, breakdown of tolerance in atopic donors was not accompanied by a quantitatively or qualitatively altered Treg response, but instead correlated with a striking dichotomy of Treg versus Th2 target specificity. Allergenic proteins, are selectively targeted by Th2 cells, but not Treg. Thus human Treg specific for airborne antigens maintain tolerance at mucosal sites and the failure to generate specific Treg against a subgroup of antigens provides a window of opportunity for allergy development. PBMCs from sex and age matched birch pollen allergic patients and healthy controls, were stimulated (7h) with airborne fungal (A. fumigatus) or birch pollen antigen (birch) and sorted into antigen specific conventional and regulatory T cells according to their expression of CD154+ and CD137+ on CD4+ T cells, respectively. Number of samples per group in parentheses: Healthy controls stimulated with A. fumigatus (n=5), allergic patients stimulated with A. fumigatus (n=6), healthy controls stimulated with birch (n=6), allergic patients stimulated with birch (n=4).

2016-10-25 | E-GEOD-77018 | biostudies-arrayexpress

Transcription profiling of nose epithelial cells from people who are birch pollen allergic or non-allergic after exposure to natural pollen in spring and winter

Project description:Immunologic response of two patient categories, birch pollen allergic and non-allergic, to natural pollen exposure (spring vs. winter) quantitated at the level of the transcriptome

2009-04-14 | E-MTAB-17 | biostudies-arrayexpress

Dosing intact birch pollen grains at the air-liquid interface (ALI) to the immortalized human bronchial epithelial cell line BEAS-2B.

Project description:In real life, humans are exposed to whole pollen grains at the air epithelial barrier. We developed a system for in vitro dosing of whole pollen grains at the Air-Liquid Interface (ALI) and studied their effect on the immortalized human bronchial epithelial cell line BEAS-2B. Pollen are sticky and large particles. Dosing pollen needs resuspension of single particles rather than clusters, and subsequent transportation to the cells with little loss to the walls of the instrumentation i.e. in a straight line. To avoid high speed impacting insults to cells we chose sedimentation by gravity as a delivery step. Pollen was resuspended into single particles by pressured air. A pollen dispersion unit including PTFE coating of the walls and reduced air pressure limited impaction loss to the walls. The loss of pollen to the system was still about 40%. A linear dose effect curve resulted in 327-2834 pollen/cm2 (± 6.1%), the latter concentration being calculated as the amount deposited on epithelial cells on high pollen days. After whole pollen exposure, the largest differential gene expression at the transcriptomic level was late, about 7 hours after exposure. Inflammatory and response to stimulus related genes were up-regulated. We developed a whole pollen exposure air-liquid interface system (Pollen-ALI), in which cells can be gently and reliably dosed.

| S-EPMC8594808 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data