Gene expression in three different chicken lines after Salmonella infection early in life
Ontology highlight
ABSTRACT:
ORGANISM(S): Gallus gallus
PROVIDER: GSE27069 | GEO | 2012/01/29
SECONDARY ACCESSION(S): PRJNA137553
REPOSITORIES: GEO
Similar Datasets
Project description:Transcriptional profiling of jejunum infected with Salmonella in three different chicken lines early in life. Samples were taken at 8, 24 and 48 hours post infection. Salmonella was orally ingested at day zero (hatch). test sample vs. common RNA reference pool (all chickens from control and infected for all time points)
2012-01-29 | E-GEOD-27069 | biostudies-arrayexpress
Project description:1-day old chickens were orally inoculated with 1e5 c.f.u. Salmonella enteritidis. 24 hours after infection RNA from the jejunum was analysed. Two different microarray platforms were used, a homemade cDNA microarray and the Affymetrix GeneChip Chicken Genome Array Keywords: host response; genetic background
2006-03-30 | GSE3702 | GEO
Project description:Poultry products are an important source of Salmonella enterica. An effective way to reduce food poisoning due to Salmonella would be to breed chickens more resistant to Salmonella. Unfortunately resistance to Salmonella is a complex trait with many factors involved. To learn more about Salmonella resistance mechanisms in young chickens, a cDNA microarray analysis was performed to compare gene expression profiles between a Salmonella susceptible and a more resistant chicken line. Newly hatched chickens were orally infected with S. enterica serovar Enteritidis. Since the intestine is the first barrier the bacteria encountersbacteria encounter after oral inoculation, gene expression was investigated in the intestine, from day 1 until day 21 post infection. Differences in gene expression between the susceptible and resistant chicken line were found in control as well as Salmonella infected conditions. In response to the Salmonella infection, the expression of different sets of genes seemed to be affected in the jejunum of the two chicken lines. In the susceptible line this included genes that affect T-cell activation, whereas in the more resistant line, at day 1, macrophage activation seemed to be more affected. At day 7 and 9 most gene expression differences between the two chicken lines were identified under control conditions, indicating a difference in the intestinal development between the two chicken lines which might be linked to the difference in Salmonella susceptibility. The findings in this study have lead to the identification of novel genes and possible cellular pathways of the host involved in Salmonella susceptibility. Keywords: timecourse, disease
2005-12-05 | GSE3066 | GEO
Project description:RNA was extracted form chicken jejuna at 0.33,1, 2, 4, 8, 12 and 21 days post-infection, in orally infected (1.10^5 Salmonella ) and control chickens.<br>NOTE: Normalization is performed separately! on control and infected chickens, because the objective was to investigate differences in development.
2010-03-01 | E-MEXP-2042 | biostudies-arrayexpress
Project description:The response of chicken to non-typhoidal Salmonella infection is becoming well characterised but the role of particular cell types in this response is still far from being understood. Therefore, in this study we characterised the response of chicken embryo fibroblasts (CEFs) to infection with two different S. Enteritidis strains by microarray analysis. The expression of chicken genes identified as significantly up- or down-regulated (≥3-fold) by microarray analysis was verified by real-time PCR followed by functional classification of the genes and prediction of interactions between the proteins using Gene Ontology and STRING Database. Finally the expression of the newly identified genes was tested in HD11 macrophages and in vivo in chickens. Altogether 19 genes were induced in CEFs after S. Enteritidis infection. Twelve of them were also induced in HD11 macrophages and thirteen in the caecum of orally infected chickens. The majority of these genes were assigned different functions in the immune response, however five of them (LOC101750351, K123, BU460569, MOBKL2C and G0S2) have not been associated with the response of chicken to Salmonella infection so far. K123 and G0S2 were the only 'non-immune' genes inducible by S. Enteritidis in fibroblasts, HD11 macrophages and in the caecum after oral infection. The function of K123 is unknown but G0S2 is involved in lipid metabolism and in β-oxidation of fatty acids in mitochondria. Increased levels of G0S2 might decrease the availability of fatty acids to mitochondria. In non-professional phagocytes such as CEFs, this may lead to the dysfunction of mitochondria, apoptosis of CEFs and release of intracellular Salmonella. In professional phagocytes, G0S2 might be involved in the control of mitochondrial respiration, resulting in a decrease of reactive oxygen species as respiration by-products and lower damage to tissue.
2015-06-12 | GSE67459 | GEO
Project description:Salmonella enterica is one of the most important foodborne pathogens that infect a variety of animals and birds. In humans, S. Typhimurium causes gastroenteritis, leading to vomiting, diarrhea, fever, and abdominal cramps. We mainly get infected with Salmonella by ingesting comminated poultry products. Therefore, developing an oral live attenuated vaccine for the poultry industry is our best bet against Salmonella infection. In this article, we investigated the potential of the next generation of Salmonella vaccines. We generated a library of potentially attenuated S. Typhimurium mutants and compared fitness to that of a commercial vaccine. We also investigated the invasion and survival potential of these mutants in chicken macrophages. Our data indicate that although these mutants had no significant growth defects, they were much sensitive to macrophage attack. Analyzing the transcriptome data from infected primary chicken macrophages, we concluded that these mutants elicit a robust immune response by activating several immunoregulatory pathways. Our data also indicates that by combining phoPQ deletion with an already existing cya-crp deletion in MeganVac1, a much stronger immune response can be generated.
2022-05-25 | GSE193063 | GEO
Project description:The response of chicken to non-typhoidal Salmonella infection is becoming well characterised but the role of particular cell types in this response is still far from being understood. Therefore, in this study we characterised the response of chicken embryo fibroblasts (CEFs) to infection with two different S. Enteritidis strains by microarray analysis. The expression of chicken genes identified as significantly up- or down-regulated (≥3-fold) by microarray analysis was verified by real-time PCR followed by functional classification of the genes and prediction of interactions between the proteins using Gene Ontology and STRING Database. Finally the expression of the newly identified genes was tested in HD11 macrophages and in vivo in chickens. Altogether 19 genes were induced in CEFs after S. Enteritidis infection. Twelve of them were also induced in HD11 macrophages and thirteen in the caecum of orally infected chickens. The majority of these genes were assigned different functions in the immune response, however five of them (LOC101750351, K123, BU460569, MOBKL2C and G0S2) have not been associated with the response of chicken to Salmonella infection so far. K123 and G0S2 were the only 'non-immune' genes inducible by S. Enteritidis in fibroblasts, HD11 macrophages and in the caecum after oral infection. The function of K123 is unknown but G0S2 is involved in lipid metabolism and in β-oxidation of fatty acids in mitochondria. Increased levels of G0S2 might decrease the availability of fatty acids to mitochondria. In non-professional phagocytes such as CEFs, this may lead to the dysfunction of mitochondria, apoptosis of CEFs and release of intracellular Salmonella. In professional phagocytes, G0S2 might be involved in the control of mitochondrial respiration, resulting in a decrease of reactive oxygen species as respiration by-products and lower damage to tissue. In this study we were interested whether chicken embryo fibroblast (CEFs) respond to S. Enteritidis infection and to what extent their response differs from that of other cells and caecal tissue. To address this, we characterised the gene expression of CEFs after infection with two different wild-type S. Enteritidis strains of poultry origin - SE 147 and SE 11 - using Agilen custom 8×15K microarrays. In total, 13,681 probes were designed to characterise the expression of ~9,000 transcripts of Gallus gallus.
2015-06-12 | E-GEOD-67459 | biostudies-arrayexpress
Project description:Transcriptional profiling of eight normal adult chicken tissues in 10-week old brown (lohmann brown) hens, the eight tissues include brain, bursa of Fabricius, jejunum, kidney, liver, lung, spleen, thymus. Keywords: normal chicken tissues, transcriptional profiling.
2010-03-08 | GSE17108 | GEO
Project description:Purpose:We have used RNA-seq to examine of differentially expressed miRNAs in chicken leg muscle of three different development stages (11 embryo ages, 16 embryo ages, and 1 day old post hatch chick).The aims of this study are characterization of miRNAs differentially expressed in different developmental stage of chicken embryo, using RNA sequence sample. Methods: On this study we used two embryonic stage and one post hatch chick leg muscle of Xinghua chicken breed. Total RNA from E11 day embryo, E16 day embryo and 1 day post hatch chick was isolated by TRIzol following the manufacturer’s protocol (Invitrogen, CA, USA). Each stages were designed two samples, and the total samples were six (three group × two sample/group) and RNA samples of six individuals were pooled with equal amounts, and then were subjected to Illumina deep sequencing. Results: After eliminating adaptor and low-quality reads, a total of 5,302,700, 6,556,747, 5,359,793, 4,213,112, 7,112,885 and 7,469,939 clean reads were obtained in group E11 (E11.1-E11.2), group E16 (E16.1-E16.2) and group P1 (P1.1–P1.2) libraries, respectively. The clean reads were aligned to the chicken genome databases, miRBase, Rfam, RepBase and mRNA. Conclusions:To assess miRNA expression during chicken embryo skeletal muscle development, we sequenced and analyzed leg muscle at 11 day embryo age, 16 day embryo age, and 1 days post hatch.
2017-06-22 | GSE100321 | GEO
Project description:The first period post-hatch with all its stimuli could potentially be stressful for the chicks, and by that affect the welfare of the chicken as they mature. By measuring changes in the transcriptome, along with behavioural phenotypes and hormonal levels, the aim is to investigate short and long term effects on the chicken. One batch of chicken were hatched in a production environment, and underwent the same treatment all newly hatched production animals do (sorting, sexing and transportation). Eggs of the same age were simultaneously incubated and hatched in a control environment in a lab. From the end of day one after hatch, both groups were reared under the same conditions in the lab.
2017-02-28 | E-MTAB-4735 | biostudies-arrayexpress