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Influence of Deoxynivalenol-contaminated diet on the liver gene expression of chicken.

ABSTRACT: The mycotoxin deoxynivalenol (DON) is a secondary metabolite from Fusarium species and is frequently present on wheat and other cereals. The main effects of DON are a reduction of the feed intake and reduced weight gain of broilers. At the molecular level DON binds to the 60S ribosomal subunit and inhibits subsequently protein synthesis at the translational level. It has been suggested that cells and tissues with high protein turnover rate, like the liver and small intestine, are most affected by DON. However, little is known about other effects of DON e.g. at the transcriptional level. Therefore we decided to perform a microarray analysis, which allows us the investigation of thousands of transcripts in one experiment.

ORGANISM(S): Gallus gallus

PROVIDER: GSE25185 | GEO | 2011/11/05

SECONDARY ACCESSION(S): PRJNA134531

REPOSITORIES: GEO

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Influence of Deoxynivalenol-contaminated diet on the liver gene expression of chicken.

Project description:The mycotoxin deoxynivalenol (DON) is a secondary metabolite from Fusarium species and is frequently present on wheat and other cereals. The main effects of DON are a reduction of the feed intake and reduced weight gain of broilers. At the molecular level DON binds to the 60S ribosomal subunit and inhibits subsequently protein synthesis at the translational level. It has been suggested that cells and tissues with high protein turnover rate, like the liver and small intestine, are most affected by DON. However, little is known about other effects of DON e.g. at the transcriptional level. Therefore we decided to perform a microarray analysis, which allows us the investigation of thousands of transcripts in one experiment. The one-day old broiler chicks were separated into four groups. The diets consisted of a control diet and of three diets with moderate concentrations of 1.0, 2.5 and 5.0 mg DON/kg feed, which was attained by exchanging uncontaminated wheat with naturally DON-contaminated wheat up to the intended concentration. The chicken were held at standard conditions for 23 days and received their diet ad libitum. After slaughter the gene expression was determined in the liver of three samples per group.

2011-11-05 | E-GEOD-25185 | biostudies-arrayexpress

Transcriptome analysis of Escherichia coli under deoxynivalenol and nivalenol conditions

Project description:We constructed E. coli transcriptome under deoxynivalenol (DON) and nivalenol (NIV) condition from Fusarium spp. To identify differentially expressed genes in mycotoxin condition, we compared mycotoxin (DON and NIV) transcriptome to acetonitrile (ACN) transcriptome as the solvent of myxotoxin. As a result, 435-929 transcripts were identified from all conditions, respectively.

2017-07-23 | GSE59682 | GEO

Impact of biomechanical stimulation in the toxicity of deoxynivalenol in A431 cells: impairment of “dynamic” cell functions

Project description:Morphology together with the capability to respond to surrounding stimuli are the key elements governing the spatial interaction of a living cell with the environment. In this respect, biomechanical stimulation can trigger significant physiological cascades that can potentially modulate or interact with toxicity. Deoxynivalenol (DON, vomitoxin) is one of the most prevalent mycotoxins produced by Fusarium spp. and it was used to explore the delicate interaction between biomechanical stimulation and cytotoxic processes in A431 cells. In fact, in addition of being a well-known food contaminant, DON is becoming a relevant toxin also for other organ systems. The combination between biomechanical stimulation and the mycotoxin revealed how DON can impair crucial functions like cellular morphology and lysosome trafficking at concentrations far below those known to be cytotoxic in routine toxicity studies. Moreover, sub-toxic concentrations of DON (0.1-1 μM) impaired the capability of A431 cells to respond to a biomechanical stimulation that normally sustains trophic effects in this cell line. Ultimately, the effects of DON (0.1-10 μM) were partially modulated by the application of uniaxial stretching (0.5Hz, 24h, 15% deformation) suggesting a deep cross-talk between the cytotoxic potential of the mycotoxin and the biomechanical stimulation.

2018-07-31 | PXD008996 | Pride

Deoxynivalenol affects the gene expression of A549 lung epithelial cells

Project description:Deoxynivalenol (DON) is an important Fusarium toxin of concern for food safety. The inhalation of powder contaminated with deoxynivalenol is possible and may cause lung toxicity. In this study, we investigated the gene expression profile of A549 cells treated with 0.2 microg/mL deoxynivalenol by microarray analysis. In total, 16 genes and 5 noncoding RNAs were significantly affected by deoxynivalenol treatment. 4 samples; 2 samples from nontreated cells and other 2 samples from 0.2 microg/mL DON-treated cells for 24 hours

2016-02-29 | E-GEOD-60928 | biostudies-arrayexpress

Deoxynivalenol affects the gene expression of A549 lung epithelial cells

2016-02-29 | GSE60928 | GEO

Salmonella Typhimurium: control vs. Deoxynivalenol (DON) treatment

Project description:Transcriptional profiling of log and stationary phase S. Typhimurium, comparing untreated controls with Deoxynivalenol treated samples. Each array used labelled cDNA against a common genomic DNA reference. Triplicate arrays were carried out for each of the 4 conditions: untreated log phase, untreated stationary phase, DON treated log phase and DON treated stationary phase

2011-05-20 | E-GEOD-29399 | biostudies-arrayexpress

Ribosome quality control is a central protection mechanism for yeast exposed to Deoxynivalenol and Trichothecin

Project description:Trichothecenes, like deoxynivalenol (DON) are secondary metabolites of Fusarium species, and are major pollutants in cereal food and feed products. They inhibit eukaryotic protein synthesis, however with only partly resolved consequences for the cellular homeostasis. Here we report a systematic functional investigation of the effects of DON on exponential phase growing yeast cells using either short doses of DON or continuos treatment with DON.

2016-06-03 | GSE75462 | GEO

Comparative effect of DON and plant or microbial biotransformation of DON on gene expression of piglets jejunal explants

Project description:Deoxynivalenol (DON) is a frequent mycotoxin in grains, produced by Fusarium fungi, which demonstre multiple side effects such as modulation of immune responses, reduced feed intake and weight gain or impairment of the intestinal barrier function. Among animal species, pigs are the best model for humans and are very sensitive to DON. In wheat, DON can be conjugated to glucose to form DON-3-β-D-glucoside (D3G). Some bacteria isolated from digestive tracts or soil, are also able to de-epoxydize or epimerize DON to metabolites such as deepoxy-deoxynivalenol (DOM-1) or 3-epi-deoxynivalenol (epi-DON). The toxicity of these DON metabolites is poorly documented. By the way of ingestion, the intestine is the first organ exposed to these molecules and so constitute a relevant model. The aim of this study was to compare the intestinal toxicity of three DON metabolites (D3G, DOM-1 and epi-DON) with the one of DON. Intestinal explants from 6 pigs were treated with 10mM DON, D3G, DOM-1 or epi-DON for 4 hours and transcriptomic analysis was performed using an “Agilent Porcinet 60K”.

2016-07-20 | GSE66918 | GEO

Comparative analyses of resistance pathways of Arabidopsis thaliana and soybean (Glycine max) to Fusarium virguliforme and to deoxynivalenol of Gibberella zeae

Project description:Microarray experiments allow the dissection genome wide patterns of mRNA abundances and improve understanding of the molecular basis of the plant defense responses. These global and simultaneous analyses of TA profiles enable variations in mRNA abundances under specific treatments to be compared. In order to compare the plant resistance mechanism to DON toxicity and infection of Fusarial pathogens, microarray data from Arabidopsis thaliana cells challenged with the mycotoxin DON was compared to the data from the plants responding to F. virguliforme infestations. The microarray chip contained over 10,000 different ESTs (AFGC) was employed in both analyses. The first objective of this approach was to identify genes that were transcriptionally regulated when plants were treated with the toxin. The second objective using the microarray data was to identify resistance pathways where these co-regulated genes were positioned. The parallel comparison on transcriptional activities among soybean and Arabidopsis after fungal pathogen Fsg pathogenesis and Arabidopsis with DON treatment was also performed. Infection: Using F. virguliforme spores Compound Based Treatment: Time seedlings were exposed to Deoxynivalenol time_series_design

2012-04-11 | E-GEOD-37193 | biostudies-arrayexpress

Deoxynivalenol and human epidermal cells: proteomic profiling indicates alterations of cell membrane integrity and barrier function

Project description:The possibility to combine untargeted proteomic workflows to more classical experimental approaches is continuously opening new insights in all branches of biological sciences. Deoxynivalenol (vomitoxin, DON) is a secondary metabolite produced by Fusarium spp. fungi and it is one of the most recurrent mycotoxins worldwide. DON is known to inhibit protein synthesis and as such to interact with the different cell types in multiple and complex ways. For the purpose of this study epidermoid squamous cell carcinoma cells A431 and primary human HEKn cells were incubated with DON for 24h and toxin dependent alteration of the proteome profile was observed in the nuclear and cytoplasmic fraction. In A431 cells, DON significantly down-regulated ribosomal proteins, as well as mitochondrial respiratory chain elements (OXPHOS regulation) and transport proteins (TOMM22; TOMM40; TOMM70A). In line with the impairment of the mitochondrial function, altered metabolic capability was observed, with particular target of the lipid synthesis machinery. Effect of the mycotoxin on cell membrane was verified by confocal microscopy (morphology) and by membrane fluidity measures (biophysical properties). The toxicological relevance of these findings was independently confirmed with the primary human keratinocytes HEKn.

2021-05-03 | PXD013613 | Pride

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