Gallus gallus
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ABSTRACT:
PROVIDER: PRJNA171174 | ENA |
REPOSITORIES: ENA
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Project description:To provide insight into the systemic metabolic effects of S. enteritidis infection, liver samples were harvested 10 days post infection from broiler hens. Hepatic global gene expression levels were assessed using a chicken 44K Agilent microarray. Forty-four genes were differentially expressed at a significance level of q-value < 0.05. One hundred eighty-three genes were differentially expressed at a suggestive significance level of q-value < 0.1. A predominance of down-regulation existed among significantly differentially expressed genes. A cell morphology, cell cycle, organismal injury and abnormalities network and a metabolic disease, cardiovascular system development and function, and urological disease network were created from the differentially expressed genes. Apoptosis, electron transport, peptidase activity, vein constriction, cell differentiation, IL-2 signaling, Jak-Stat signaling, B-cell receptor signaling, GDP/GTP exchange, and cytokine suppression were among the functions of the differentially expressed genes that were down-regulated in response to S. enteritidis. The effects of S. enteritidis infection on the liver transcriptome profiles of broilers reflect a predominance of down-regulation of genes involved with metabolic, cell morphology, cell cycle, urological disease, and organismal injury functions. These results provide insight into important systemic metabolic mechanisms that are active in the chicken liver in response to S. enteritidis infection. Sixteen broiler hens of approximately 5 months (8 challenged orally with 1x108 S. enteritidis on each of three sequential days and 8 mock-challenged with phosphate buffered saline) were used. Livers were harvested at 10 days post infection and stored in RNALater (Ambion).
2013-02-17 | E-GEOD-39448 | biostudies-arrayexpress
Project description:To provide insight into the systemic metabolic effects of S. enteritidis infection, liver samples were harvested 10 days post infection from broiler hens. Hepatic global gene expression levels were assessed using a chicken 44K Agilent microarray. Forty-four genes were differentially expressed at a significance level of q-value < 0.05. One hundred eighty-three genes were differentially expressed at a suggestive significance level of q-value < 0.1. A predominance of down-regulation existed among significantly differentially expressed genes. A cell morphology, cell cycle, organismal injury and abnormalities network and a metabolic disease, cardiovascular system development and function, and urological disease network were created from the differentially expressed genes. Apoptosis, electron transport, peptidase activity, vein constriction, cell differentiation, IL-2 signaling, Jak-Stat signaling, B-cell receptor signaling, GDP/GTP exchange, and cytokine suppression were among the functions of the differentially expressed genes that were down-regulated in response to S. enteritidis. The effects of S. enteritidis infection on the liver transcriptome profiles of broilers reflect a predominance of down-regulation of genes involved with metabolic, cell morphology, cell cycle, urological disease, and organismal injury functions. These results provide insight into important systemic metabolic mechanisms that are active in the chicken liver in response to S. enteritidis infection.
2013-02-17 | GSE39448 | GEO
Project description:Salmonella enteritidis is suggested to translocate in the small intestine. Previously we identified that prebiotics, fermented in the colon, increased Salmonella translocation in rats, suggesting involvement of the colon in translocation. Effects of Salmonella on colonic gene expression in vivo are largely unknown. The aim of this study was to characterize time dependent Salmonella induced changes of colonic mucosal gene expression in rats using whole genome microarrays. Rats were orally infected with Salmonella enteritidis to mimic a foodbore infection and colonic gene expression was determined at day 1, 3 and 6 post-infection (n=8 per timepoint). Agilent rat whole genome microarray (G4131A Agilent Technologies) were used. Results indicate that colon is clearly a target tissue for Salmonella considering the abundant changes in mucosal gene expression observed. Keywords: Time point infection study, colon mucosa, Rat
2007-10-18 | GSE7496 | GEO
Project description:With the development of the poultry industry, ammonia, as a main contaminant in the air, is causing increasing problems with broiler health. To date, most studies of ammonia toxicity have focused on the nervous system and the gastrointestinal tract in mammals. However, few detailed studies have been conducted on the hepatic response to ammonia toxicity in poultry. The molecular mechanisms that underlie these effects remain unclear. In the present study, our group applied isobaric tags for relative and absolute quantitation (iTRAQ) - based quantitative proteomic analysis to investigate changes in the protein profile change in hepatic tissue of broilers exposed to high concentrations of atmospheric ammonia, with the goal of characterizing the molecular mechanisms of chronic liver injury from exposure to high ambient levels of ammonia. Overall, 30 differentially expressed proteins that are involved in nutrient metabolism (energy, lipid and amino acid), immune response, transcriptional and translational regulation, stress response and detoxification were identified. In particular, two of these proteins, beta-1 galactosidase (GLB1), and a kinase (PRKA) anchor protein 8-like (AKAP8 L), were previously suggested to be potential biomarkers of chronic liver injury. In addition to the changes in the protein profile, serum parameters and histochemical analyses of hepatic tissue also showed extensive hepatic damage in ammonia-exposed broilers. Altogether, these findings suggest that longtime exposure to high concentrations of atmospheric ammonia can trigger chronic hepatic injury in broilers via different mechanisms, providing new information that can be used for intervention using nutritional strategies in the future.
2016-06-15 | PXD001670 | Pride
Project description:White leghorn layers were infected with Salmonella Enteritidis. The cecum were collected at 7 days post infection for total RNA isolation. The significantly expressed microRNAs between infected and non-infected chickens were identified through Solexa sequencing technology.
2017-03-08 | GSE59748 | GEO
Project description:This is a dynamic mathematical model describing the development of the cellular branch of the intestinal immune system of poultry during the first 42 days of life, and of its response towards an oral infection with Salmonella enterica serovar Enteritidis.
2024-09-02 | BIOMD0000000895 | BioModels
Project description:Gene Expression Profiles of Chicken Embryo Fibroblasts in Response to Salmonella Enteritidis Infection
| PRJNA279986 | ENA
Project description:Salmonella enteritidis (SE) is a foodborne pathogen that causes high morbidity and mortality rates in poultry. Liquid chromatography tandem mass spectrometry (LC-MS/MS) proteomics was used to study the effects of Salmonella infection on spleen proteome in broiler chicks.
Control (CON; n=60) or Salmonella challenged (CON-SE; n=60) broilers were gavaged with sterile Tryptic soy agar broth or 7.46 x 108 colony-forming units (CFU) of SE. Weight gain and feed intake between 1 and 14 d post-hatching was determined. A subset of chicks was euthanized on D3 and D7 of age (n=4/group/day) and spleen was aseptically removed, and used for proteomic analysis. There was no difference in growth performance between CON and CON-SE. Across the 16 spleen samples 2625 proteins were measured of which 360 proteins were DAP between D3 and D7. Proteins decreased in abundance between days mediated cell cycle progression, those increased in abundance function in cytoskeleton and mRNA processing. Salmonella infection influenced the abundance of 216 proteins (FDR <0.05); increasing proteins involved in redox homeostasis, lysosomal activities, and energy production, while decreasing abundance of proteins involved in developmental progression.
Although SE infection did not affect growth performance of experimental chicks, the proteomics signatures of spleen suggest infection was metabolically costly, and energy was diverted from normal developmental processes to potentiate disease resistance mechanisms.
2022-07-22 | MSV000089947 | MassIVE
Project description:Salmonella infections are among the most common foodborne diseases worldwide. The Enteritidis and Dublin serovars of Salmonella enterica are closely related yet they differ significantly in pathogenicity and epidemiology. Enteritidis is a broad-host-range serovar that commonly causes gastroenteritis and infrequently causes invasive disease in humans. Dublin mainly colonizes cattle but upon infecting humans often results in invasive disease. The aim of this work was to elucidate the molecular factors responsible for the differential pathogenic behavior between both serovars. We performed a quantitative proteomic comparative analysis between one clinical isolate of each serovar grown in vitro under gut mimicking conditions (GMC). Compared to S. Enteritidis, the S. Dublin proteome was enriched in proteins linked to response to several stress conditions, such as those encountered during host infection, as well as to virulence. The S. Enteritidis proteome contained proteins related to central anaerobic metabolism pathways that were undetected in S. Dublin. Similar differences were also found at the transcriptional level, as mRNA levels correlated with proteomic results for 17 of the 20 genes tested in 4 natural isolates of each serovar grown in GMC. This work reveals proteomic differences between two Salmonella serovars with markedly different invasive and host-range characteristics, grown in an infection relevant condition, which were not evident in previous comparative genomic analyses.
2021-09-09 | PXD021353 | Pride
Project description:Abstract: Atmospheric ammonia is a common problem in poultry industry. High concentrations of aerial ammonia cause great harm to broilers' health and production. For the consideration of human health, the limit exposure concentration of ammonia in houses is set at 25 ppm. Previous reports have shown that 25 ppm is still detrimental to livestock, especially the gastrointestinal tract and respiratory tract, but the negative relationship between ammonia exposure and the tissue of breast muscle of broilers is still unknown. In the present study, 25 ppm ammonia in poultry houses was found to lower slaughter performance and breast yield. Then, high-throughput RNA sequencing was utilized to identify differentially expressed genes in breast muscle of broiler chickens exposed to high (25 ppm) or low (3 ppm) levels of atmospheric ammonia. The transcriptome analysis showed that 163 genes (fold change â?¥ 2 or â?¤ 0.5; P-value < 0.05) were differentially expressed between Ammonia25 (treatment group) and Ammonia3 (control group), including 96 down-regulated and 67 up-regulated genes. qRT-PCR analysis validated the transcriptomic results of RNA sequencing. Gene Ontology (GO) functional annotation analysis revealed potential genes, processes and pathways with putative involvement in growth and development inhibition of breast muscle in broilers caused by aerial ammonia exposure. This study facilitates understanding of the genetic architecture of the chicken breast muscle transcriptome, and has identified candidate genes for breast muscle response to atmospheric ammonia exposure. Breast muscle mRNA profiles of 42-day old Arbor Acres male broilers exposed to 3 ppm (Ammonia3) and 25 ppm (Ammonia25) concentrations of atmospheric ammonia were generated by RNA sequencing, in duplicate, using Illumina HiSeq2000.
2016-08-19 | E-GEOD-85786 | biostudies-arrayexpress