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Gallus gallus

ABSTRACT: Host response and prevention of avian pathogenic Escherichia coli following vaccination with an attenuated Salmonella expressing E. coli common pilus in chickens

PROVIDER: PRJNA393855 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5817781.fastq.gz	Fastqsanger.gz
	SRR5817782.fastq.gz	Fastqsanger.gz
	SRR5817783.fastq.gz	Fastqsanger.gz
	SRR5817784.fastq.gz	Fastqsanger.gz
	SRR5817785.fastq.gz	Fastqsanger.gz

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Host response and prevention of avian pathogenic Escherichia coli following vaccination with an attenuated Salmonella expressing E. coli common pilus in chickens

Project description:Avian pathogenic Escherichia coli (APEC) is a subset of extraintestinal pathogenic E. coli that causes detrimental losses to the poultry industry. Vaccines to reduce APEC in chickens have been partially successful, but many lack protection against multiple serotypes of APEC. Recombinant attenuated Salmonella vaccine (RASV) strains have been used to induce immunity against Salmonella in production chickens and can be modified to deliver foreign antigens as well. This study evaluated the transcriptome of chicken spleens and assessed prevention of APEC infection following vaccination with RASV strains, including a RASV carrying an E. coli antigen. Four-day-old White Leghorn chicks were orally vaccinated with RASV c8025(pYA3337) carrying an empty plasmid, c8025(pYA4428) carrying genes for E. coli common pilus (ECP), a combination of RASVs c8025(pYA3337) and c8025(pYA4428), or PBS (unvaccinated). To assess the host response to vaccination, antibody titers were measured by ELISA and spleen samples (n = 5) were collected from combination vaccinated and unvaccinated groups of four-week-old chickens for RNA sequencing. Five-week old chickens were challenged via air sac with APEC strains APEC-O2 and c7122 (O78). Blood was obtained 24 hours post-challenge, heart, liver, lung, and spleen were collected 48 hours post-challenge for enumeration of E. coli, and gross colibacillosis lesions were scored at necropsy. Chickens vaccinated with RASV strains elicited anti-E. coli EcpA, as well as cross reactive anti-E. coli IutA and IroN IgY antibodies. IgA results. In some organs, bacterial loads and lesions scores were numerically reduced, but no significant differences were detected for vaccinated compared to unvaccinated chickens. Transcriptome results. This data indicates that RASVs could be used to stimulate the immune system and is an initial step toward developing improved therapeutics to combat APEC infections in chickens.

2018-07-10 | GSE101198 | GEO

Gene expression analysis of chickens (Gallus gallus) infected with recombinant influenza viruses

2012-03-31 | GSE32378 | GEO

Gene expression analysis of chickens (Gallus gallus) infected with recombinant influenza viruses

Project description:H5N1 subtype highly pathogenic avian influenza virus has been spreading to Asia, Eurasia and African coutries. An original or six of recombinant H5N1 subtype influenza viruses with varying survivability were infected to chickens for elucidating genes correlated with pathogenicity. Two chickens were infected with each 10^6EID50/ head virus intranasally, and their lung was collected from infected chicken at 24 hours after infection.

2012-03-30 | E-GEOD-32378 | biostudies-arrayexpress

Gallus gallus

Project description:Avian pathogenic Escherichia coli (APEC) infection alters bone marrow transcriptome in chickens

| PRJNA279487 | ENA

Gallus gallus

Project description:Spleen transcriptome response to infection with avian pathogenic Escherichia coli in broiler chickens

| PRJNA133759 | ENA

Gallus gallus

Project description:Transcriptome Response of Leukocytes from Chickens Infected with Avian Pathogenic Escherichia coli Identifies Pathways Associated with Resistance

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Escherichia coli Gallus gallus

Project description:Transcriptomic profiling of avian pathogenic Escherichia coli during embryonic infection

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Gallus gallus utricle striola vs. extra-striola

Project description:The inner ear utilizes sensory hair cells as mechano-electric transducers for sensing sound and balance. In mammals, these hair cells lack the capacity for regeneration. Unlike mammals, hair cells from non-mammalian vertebrates, such as birds, can be regenerated throughout the life of the organism making them a useful model for studying inner ear genetics pathways. The zinc finger transcription factor GATA3 is required for inner ear development and mutations cause sensory neural deafness in humans. In the avian cochlea GATA3 is expressed throughout the sensory epithelia; however, expression is limited to the striola of the utricle. The striola corresponds to an abrupt change in morphologically distinct hair cell types and a 180° shift in hair cell orientation. We used 3 complimentary approaches to identify potential downstream targets of GATA3 in the avian utricle. Specifically we used microarray expression profiling of GATA3 knockdown by siRNA and GATA3 over-expression treatments as well as direct comparisons of GATA3 expressing cells from the striola and non GATA3 expressing cells from the extra-striola.

2009-12-25 | GSE14783 | GEO

Genome wide host gene expression analysis in chicken lungs infected with avian influenza viruses

Project description:The mechanisms responsible for the molecular pathogenesis of the highly pathogenic avian influenza virus (HPAIV) or low pathogenic avian influenza virus (LPAIV) in avian species remain poorly understood. Thus, global immune response of chickens infected with HPAIV H5N1 (A/duck/India/02CA10/2011) and LPAIV H9N2 (A/duck/India/249800/2010) viruses was studied using microarray to identify crucial host genetic components responsive to these infection. HPAIV H5N1 induced excessive mRNA expression of cytokines (IFNA, OASL, MX1, RSAD2, IFITM5, GBP 1, IL1B, IL18, IL22, IL13, IL12B, CCL4, CCL9, CCL10, CX3CL1 etc) in lung tissues. This excessive cytokine response (cytokine storms) may cause tissue damage and high mortality in chickens. In contrast, the expression levels of most of the cytokines remained unchanged in the lungs of LPAIV H9N2 virus infected chickens. This study indicated the relationship between host cytokines response and their roles in pathogenesis in chickens infected with HPAIVs.

2016-01-02 | GSE65231 | GEO

Genome wide host gene expression analysis in chicken lungs infected with avian influenza viruses

2016-07-04 | E-GEOD-65231 | biostudies-arrayexpress