Cardiotoxic effects of mycotoxin citrinin on mammalian cells revealed by transcriptome profiling
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PROVIDER: PRJNA979237 | ENA |
REPOSITORIES: ENA
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Project description:Mycotoxin citrinin (CTN) is widely found in multiple types of grains in foods and feeds globally. CTN also contaminates Monascus-derived health supplements such as red yeast rice and red yeast extracts during the fermentation process, which are originally used for preventing cardiovascular diseases. A previous study has reported that CTN is cardiotoxic to zebrafish embryos during their development by interfering some cardiogenic genes and pathways, showing a potential risk of consuming CTN-contaminated foods and products. However, the cardiotoxic effects and the underlying mechanisms of CTN on mammalian cardiomyocytes remain unclear and need to be ellucidated. In this study, we performed RNA-seq experiments in order to investigate the transcriptomic alterations induced by CTN-exposed rat H9c2 cardiomyocytes. The transcriptome profiling we obtained may reveal some evidence regarding the toxic effects of CTN on cardiac phenotypes, chromosome segregation, tubulin arrangement, mitochondrial functioning, and stress responses, etc.
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Project description:The yeast Cryptococcus podzolicus Y3 shown the capability to degrade citrinin by the intracellular enzymes. However, the enzymes which is responsible for the degradation process was unknown. Transcriptome change in response to mycotoxin citrinin was analyzed. The molecular mechanism of Cryptococcus podzolicus Y3 withstand citrinin was revealed.
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Project description:Mycotoxin citrinin (CTN) is a contaminant widely found in foods, feeds, and fermented health supplements. To investigate the potential neurotoxic effect of CTN, RNA-seq was performed on human neuroblastoma cells SH-SY5Y exposed to 0, 10, and 20 μM CTN for 72 h. The transcriptomic profile revealed novel underlying mechanisms of CTN neurotoxicity, providing useful information for risk assessment of consuming CTN-contaminated grains and its commercial food products.
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Project description:Hypercholesterolemia interferes with the cardioprotective and hidden cardiotoxic effects of rofecoxib
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Project description:Fungal secondary metabolites can not only cause toxic effects in animals and humans, but also serve as virulence factors of the producing fungi for causing plant diseases.Thus, the severity of plant diseases associated with mycotoxins depend on the sensitivity towards the toxin. In previous experiments, we have evaluated the phytotoxic effect ofa mycotoxin on root growth of Arabidopsis wild-type and mutant seedlings. Mycotoxin treatment of a new conditional root expansion mutant partially restores the expansion phenotype (JE100; Werner et al., unpublished). AIM: This experiment aims to identify genes, in early and later phases after mycotoxin treatment in wild-type and mutant seedlings. EXPERIMENTAL PLAN: Eight Affymetrix chips are needed for this experiment. RNA preparation will be provided from wild-type, accession Columbia, and mutant seedlings after different time points of mycotoxin treatment. As control, separate seedlings will be treated with the same concentration of solvent (DMSO). Briefly, seeds will be sterilized, stratified for 48 hours and germinated on MS agar plates containing 4.5% sucrose at 22°C and 16h/8h light/dark cycles. 10 days after germination, seedlings will be transferred to liquid MS medium and shaken for another 3 days for acclimatization. Seedlings will be harvested after 2 and 24 hours of treatment with a single concentration (50 µM) of mycotoxin. To account for experimental variations (i.e. time needed for freezing the tissues, circadian clock,...), the experiment will be repeated three times and RNA samples will be pooled. EXPECTED RESULTS: The experiment should identify genes differentially expressed:; 1) between wild-type and mutant seedlings,; 2) upon mycotoxin treatment in wild-type,; 3) upon mycotoxin treatment of mutant seedlings and; 4) upon solvent treatment. The results will allow us to pinpoint the mode of action of this mycotoxin. They will also allow us to better understand the function of the mutated gene which affects the sensitivity towards the mycotoxin. Furthermore, we expect to identify the signaling pathway by which the plant responses towards the mycotoxinis triggered. Experimenter name = Ulrike Werner; Experimenter phone = +43-1-36006-6371; Experimenter fax = +43-1-36006-6392; Experimenter department = Institute of Applied Genetics and Cell Biology; Experimenter institute = BOKU; Experimenter address = Center of Applied Genetics; Experimenter address = University of Agricultural Sciences Vienna; Experimenter address = Muthgasse 18; Experimenter address = Vienna; Experimenter zip/postal_code = 1190; Experimenter country = Austria Experiment Overall Design: 8 samples were used in this experiment
2008-06-14 | E-GEOD-5734 | biostudies-arrayexpress
Project description:We used iTRAQ technology to sequence the proteome for chicken liver cells under mycotoxin treatment.
2019-07-10 | PXD008961 | Pride
Project description:Fungal secondary metabolites can not only cause toxic effects in animals and humans, but also serve as virulence factors of the producing fungi for causing plant diseases.Thus, the severity of plant diseases associated with mycotoxins depend on the sensitivity towards the toxin. In previous experiments, we have evaluated the phytotoxic effect ofa mycotoxin on root growth of Arabidopsis wild-type and mutant seedlings. Mycotoxin treatment of a new conditional root expansion mutant partially restores the expansion phenotype (JE100; Werner et al., unpublished). AIM: This experiment aims to identify genes, in early and later phases after mycotoxin treatment in wild-type and mutant seedlings. EXPERIMENTAL PLAN: Eight Affymetrix chips are needed for this experiment. RNA preparation will be provided from wild-type, accession Columbia, and mutant seedlings after different time points of mycotoxin treatment. As control, separate seedlings will be treated with the same concentration of solvent (DMSO). Briefly, seeds will be sterilized, stratified for 48 hours and germinated on MS agar plates containing 4.5% sucrose at 22°C and 16h/8h light/dark cycles. 10 days after germination, seedlings will be transferred to liquid MS medium and shaken for another 3 days for acclimatization. Seedlings will be harvested after 2 and 24 hours of treatment with a single concentration (50 µM) of mycotoxin. To account for experimental variations (i.e. time needed for freezing the tissues, circadian clock,...), the experiment will be repeated three times and RNA samples will be pooled. EXPECTED RESULTS: The experiment should identify genes differentially expressed: 1) between wild-type and mutant seedlings, 2) upon mycotoxin treatment in wild-type, 3) upon mycotoxin treatment of mutant seedlings and 4) upon solvent treatment. The results will allow us to pinpoint the mode of action of this mycotoxin. They will also allow us to better understand the function of the mutated gene which affects the sensitivity towards the mycotoxin. Furthermore, we expect to identify the signaling pathway by which the plant responses towards the mycotoxinis triggered. Experimenter name = Ulrike Werner Experimenter phone = +43-1-36006-6371 Experimenter fax = +43-1-36006-6392 Experimenter department = Institute of Applied Genetics and Cell Biology Experimenter institute = BOKU Experimenter address = Center of Applied Genetics Experimenter address = University of Agricultural Sciences Vienna Experimenter address = Muthgasse 18 Experimenter address = Vienna Experimenter zip/postal_code = 1190 Experimenter country = Austria Keywords: genetic_modification_design; compound_treatment_design; time_series_design
2007-01-08 | GSE5734 | GEO
Project description:Multiscale mapping of transcriptomic signatures for cardiotoxic drugs
| PRJNA1065886 | ENA