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Transcriptomic analyses of co-infection of Mycoplasma gallisepticum and Escherichia coli in chicken lungs

ABSTRACT: Transcriptomic analyses of co-infection of Mycoplasma gallisepticum and Escherichia coli in chicken lungs

PROVIDER: PRJNA533596 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8927010.fastq.gz	Fastqsanger.gz
	SRR8927011.fastq.gz	Fastqsanger.gz
	SRR8927012.fastq.gz	Fastqsanger.gz
	SRR8927013.fastq.gz	Fastqsanger.gz
	SRR8927014.fastq.gz	Fastqsanger.gz

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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

Transcriptomic analyses of co-infection of Mycoplasma gallisepticum and Escherichia coli in chicken lungs

Project description:Purpose:In order to assess the respiratory toxicity of co-infection in chicken lung, we established a co-infection model to investigate transcriptome profiles of chicken lung. Methods: RNA extracted by Trizol reagent (Invitrogen) was utilized to construct the final library (BGISEQ-500 RNA-Seq Library) based on the manufacturer’s instructions. Library was validated on the Agilent Technologies 2100 bioanalyzer. The library was amplified with phi29 to make DNA nanoball (DNB) which had more than 300 copies of one molecule. The DNBs were load into the patterned nanoarray and single end 50 bases reads were generated in the way of sequenced by synthesis. Whole transcriptome sequencing data was filtered and mapped to Chicken genome (Gallus genome Version 5.0.1 NCBI). DEG-seq method was based on Poisson distribution (Fold Change > 2 and Adjusted P value < 0.001) Results: Sampling directly from the lung yielded sufficient quantities of RNA to assess transcripts from each chicken and mapped to 18,043 Gallus gallus genes. Conclusions: We used the method of RNA-seq to find the target genes and related signaling pathways involved in the co-infection (MG and E.coli) and their underlying mechanisms.

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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.

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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.

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Mycoplasma gallisepticum: Rlow vs. F

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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

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

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Project description:The goal of this study was to identify genes important to the interaction of Mycoplasma gallisepticum with host cells in an in vitro system. An interaction time of one hour was chosen since it is less than a generation time and thus all changes can be attributed to transcriptional changes. A total of 60 transcripts were determined to be significantly up- or down-regulated under these conditions, including several hypothetical genes. Also several metabolism-related genes and ATP synthase genes were significantly down-regulated. Keywords: transcriptional response to host cells

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2021-06-25 | PXD026928 | Pride

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

Project description: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

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