Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcriptional Profiling of the Chicken Tracheal Response to Virulent Mycoplasma gallisepticum Strain Rlow

ABSTRACT: The goal of this study was to provide a global assessment of the host's response to M. gallisepticum over a 7-day time course

ORGANISM(S): Gallus gallus

PROVIDER: GSE101403 | GEO | 2017/07/14

SECONDARY ACCESSION(S): PRJNA394119

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Transcriptional Profiling of the Chicken Tracheal Response to Virulent Mycoplasma gallisepticum Strain Rlow.

Project description:Mycoplasma gallisepticum, the primary etiologic agent of chronic respiratory disease (CRD) in poultry, leads to prolonged recruitment and activation of inflammatory cells in the respiratory mucosa. This is consistent with the current model of immune dysregulation that ostensibly allows the organism to evade clearance mechanisms and establish chronic infection. To date, studies using quantitative reverse transcription-PCR (qRT-PCR) and microarrays have shown a significant transient upregulation of cytokines and chemokines from tracheal epithelial cells (TECs) in vitro and tracheal tissue ex vivo in response to virulent strain Rlow that contributes to the infiltration of inflammatory cells into the tracheal mucosa. To expand upon these experiments, RNA was isolated from tracheas of 20 chickens infected with M. gallisepticum Rlow and 20 mock-infected animals at days 1, 3, 5, and 7 postinoculation, and samples were analyzed for differential gene expression using Illumina RNA sequencing. A rapid host response was observed 24 h postinfection, with over 2,500 significantly differentially expressed genes on day 3, the peak of infection. Many of these genes have immune-related functions involved in signaling pathways, including Toll-like receptor (TLR), mitogen-activated protein kinase, Jak-STAT, and the nucleotide oligomerization domain-like receptor pathways. Of interest was the increased expression of numerous cell surface receptors, including TLR4 and TLR15, which may contribute to the production of cytokines. Metabolic pathways were also activated on days 1 and 3 postinfection, ostensibly due to epithelial cell distress that occurs upon infection. Early perturbations in tissue-wide gene expression, as observed here, may underpin a profound immune dysregulation, setting the stage for disease manifestations characteristic of M. gallisepticum infection.

| S-EPMC5607433 | biostudies-literature

Immunologic pathways in protective versus maladaptive host responses to attenuated and pathogenic strains of Mycoplasma gallisepticum

Project description:The goal of this study was to compare the host's response (chicken tracheal epithelium) to laboratory attenuated vaccine versus pathogenic strains of M. gallisepticum

2019-02-20 | E-MTAB-7675 | biostudies-arrayexpress

Mycoplasma gallisepticum: Rlow vs. F

Project description:Mycoplasma gallisepticum transcriptome comparison between in vitro grown cultures of strains Rlow and F utilizing oligo DNA microarrays.

2010-01-07 | GSE19755 | GEO

Comparative Genomic Hybridizations of Mycoplasma gallisepticum Vaccine strains and strain Rlow

2009-12-24 | GSE19629 | GEO

Global changes in Mycoplasma gallisepticum Phase-Variable Lipoprotein Gene vlhA Expression during in vivo infection of the natural chicken host

Project description:The goals of this study were to assess the vlhA gene expression of M. gallisepticum at various time over the course of early infection in the chicken host, and in in-vitro culture before innoculation and after recovery

2015-11-18 | GSE75102 | GEO

Transcription profiling of different state of Mycoplasma gallisepticum

Project description:Mycoplasma gallisepticum is a convenient model object for studying the regulation of transcription because it has a reduced genome, lack of cell wall and many metabolic pathways, and also easy to culture and non-pathogenic to humans. For rapid investigation of gene expression we developed microarray design including 3 366 probes for 678 genes. They included 665 protein coding sequences and 13 antisense RNAs from 816 genes and 17 ncRNAs present in Mycoplasma gallisepticum. This work was carried out transcriptomic profiling for different types of effects on the expression of genes of Mycoplasma gallisepticum: 1) genetic knock-out mutants; 2) cell culture exposed to sublethal concentrations of antibiotics; and 3) well-characterized heat stress effect. The study was performed on Agilent one-color microarray with custom design and random-T7 polymerase primer for cDNA synthesis. Using set of different probes for each gene or ncRNA allows to increase accuracy of gene expression quality.

2016-08-18 | GSE85777 | GEO

Mycoplasma gallisepticum Lipid Associated Membrane Proteins Up-regulate Inflammatory Genes in Chicken Tracheal Epithelial Cells via TLR-2 Ligation Through an NF-κB Dependent Pathway

Project description:To identify differential gene expression profiles of chicken tracheal epithelial cells (TECs) upon exposure to Mycoplasma gallisepticum virulent strain Rlow and avirulent strain Rhigh and corresponding lipid associated membrane proteins(LAMP) at 1.5 hours in vitro. Goal of this experiment was to identify relative comtribution of LAMPs in up-regulation of inflammatory gene compared to the live strains. Several genes were identified to be differentially regulated in all exposures, but the virulent strain up-regulated more number genes as well as at a higher extent. We identified 6 important inflammatory mediators and did confirmatory RT-qPCR analysis at 1.5, 6 and 24 hours in vitro as well as at 1.5 and 6 hours ex-vivo. RT-qPCR was also employed to identify expression of these 6 genes in presence of different signalling inhibitors and we were able to identify that Mycoplasma gallisepticum LAMPs up-regulate these inflammatory genes via TLR-2 in an NF-κB dependent pathway.

2014-09-19 | GSE61520 | GEO

Mycoplasma gallisepticum: Rlow vs. F

Project description:Mycoplasma gallisepticum transcriptome comparison between in vitro grown cultures of strains Rlow and F utilizing oligo DNA microarrays. Two-condition experiment, Rlow vs. F strain cells. Biological replicates: 3. 1 technical replicate per biological replicate which includes a dye swap.

2010-04-22 | E-GEOD-19755 | biostudies-arrayexpress

Comparative Genomic Hybridizations of Mycoplasma gallisepticum Vaccine strains and strain Rlow

Project description:Genomic content of Vaccine strains were probed against the known sequence of the virulent strain Rlow of M. gallisepticum to identify divergent or absent genes in the attenuated strains. Genomic DNA was extracted from in vitro grown cultures of M. gallisepticum strains Rlow, F, ts-11, and 6/85 and three samples from each were selected for hybirdization to oligonucleotide microarrays using standard methods from the Bioprime CGH kit. All samples were labeled with Cy3 dye and scanned at a PMT gain of 700 using a GenePix 4000B scanner. Features are duplicated on the slides and data were averaged between duplicate features on each slide. Median signal intensities were averaged between samples of the same strain and each feature from each vaccine strain was compared to Rlow. Features exhibiting four-fold or less hybridization in the vaccine strains were considered divergent or absent.

2010-05-16 | E-GEOD-19629 | biostudies-arrayexpress

Mycoplasma gallisepticum Lipid Associated Membrane Proteins Up-regulate Inflammatory Genes in Chicken Tracheal Epithelial Cells via TLR-2 Ligation Through an NF-M-NM-:B Dependent Pathway

2014-09-19 | E-GEOD-61520 | biostudies-arrayexpress