In vivo transcriptomic responses to mercury chloride exposure in rat kidney tissue
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PROVIDER: PRJNA613526 | ENA |
REPOSITORIES: ENA
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Project description:In this study we tested the ability to predict organ injury from transcriptomics data in Sprague-Dawley rats at early time points after exposure to mercury chloride (10 and 34 hours). We selected mercury chloride, a compound extensively used in animal studies for its ability to cause acute kidney and liver damage.
2020-07-07 | GSE147248 | GEO
Project description:In this study we tested the ability to predict organ injury from in vivo transcriptomics data in male Hartley guinea pigs at early time points after exposure to mercury chloride (9 and 33 hours). We selected mercury chloride, a compound extensively used in animal studies for its ability to cause acute kidney damage.
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Project description:In this study we tested the ability to predict organ injury from in vitro transcriptomics data at early time points after exposure to mercury chloride (12 and 24 hours). We selected mercury chloride, a compound extensively used in animal studies for its ability to cause acute kidney damage.
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Project description:Purpose: finding differential transcripts usage in environmentally harzardous chemical, mercury chloride (HgCl2) in human non-small cell lung carcinoma cells Methods: transcriptome analysis by the RNA-seq via mRNA pull-down Results: We found that HgCl2 increases cellular toxicity by the increasing of apoptosis via caspase-3 independent pathway in H12999 cells. Also, over thounds of altered gene expression pattern were detected from the RNA-seq analysis. Conclusions: mercury chloride (HgCl2) increases cytotoxic effects and apoptosis in H1299 cells through the caspase-3 independent pathway and changes the context of trascript
2021-03-10 | GSE163937 | GEO
Project description:Full title: Mercury-Induced Hepatotoxicity in Zebrafish: In Vivo Mechanistic Insights from Transcriptome Analysis, Phenotype Anchoring and Targeted Gene Expression Validation In this study, we performed microarray-based expression profiling on liver of zebrafish exposed to 200 µg/L of mercuric chloride for 8-96 h, to identify global transcriptional programs and biological pathways involved in mercury-induced adaptive responses under in vivo environment.
2010-03-31 | GSE18861 | GEO
Project description:Full title: Mercury-Induced Hepatotoxicity in Zebrafish: In Vivo Mechanistic Insights from Transcriptome Analysis, Phenotype Anchoring and Targeted Gene Expression Validation In this study, we performed microarray-based expression profiling on liver of zebrafish exposed to 200 µg/L of mercuric chloride for 8-96 h, to identify global transcriptional programs and biological pathways involved in mercury-induced adaptive responses under in vivo environment. We analyzed 12 arrays for mercuric chloride treated zebrafish liver and 12 arrays for control liver.
2010-06-05 | E-GEOD-18861 | biostudies-arrayexpress
Project description:The present research aimed to study the interaction of three chemicals, methyl mercury, benzene and trichloroethylene, on mRNA expression alterations in rat liver and kidney measured by microarray analysis. These compounds were selected on presumed different modes of action. The chemicals were administered daily for 14 days at the Lowest-Observed-Adverse-Effect-Level (LOAEL) or at a two- or three-fold lower concentration individually or in binary or ternary mixtures. The compounds had strong antagonistic effects on each others gene expression changes, which included several genes encoding Phase I and II metabolizing enzymes. On the other hand, the mixtures affected the expression of novel genes that were not or little affected by the individual compounds. Based on gene expression changes, the three compounds exhibited a synergistic interaction at the LOAEL in the liver and both at the sub-LOAEL and LOAEL in the kidney. Many of the genes induced by mixtures but not by single compounds, such as Id2, Nr2f6, Tnfrsf1a, Ccng1, Mdm2 and Nfkb1 in the liver, are known to affect cellular proliferation, apoptosis and function. This indicates a shift from compound specific response on exposure to individual compounds to a more generic stress response to mixtures. Most of the effects on cell viability as concluded from transcriptomics were not detected by classical toxicological research illustrating the difference in sensitivity of these techniques. These results emphasize the benefit of applying toxicogenomics in mixture interaction studies, which yields biomarkers for joint toxicity and eventually can result in an interaction model for most known toxins.
2007-09-15 | E-TOXM-30 | biostudies-arrayexpress
Project description:Humans are exposed to both inorganic and organic mercury. While the toxicity of mercury is well established, much remains to be resolved about how different mercurials act at the molecular level. To address this issue, we employed a toxicogenomics approach using the nematode C. elegans. Using sub-, low- or high-toxic exposures of either HgCl2 or CH3HgCl the effects of these mercurials on steady-state mRNA levels for the entire genome were determined. A total of 473 and 2,865 genes were differentially expressed in the HgCl2 and CH3HgCl treatments, respectively. Hierarchical clustering, principal components and pattern analyses indicated that the transcriptional responses of the mercurials were unique.
2013-09-09 | GSE28915 | GEO
Project description:Arsenic and mercury are known chemical hazards. The differences in effects from organic and inorganic forms of these toxic elements is less well understood, however. The nematode Caenorhabditis elegans (C. elegans) is a suitable model to investigate the toxicity of environmental hazards. In this study, the transcriptomic profiles of C. elegans exposed to inorganic mercury chloride (HgCl2) and sodium (meta)arsenite (NaAsO2) were assessed alongside organic methylmercury chloride (meHgCl) and dimethylarsinic acid (DMA). For this purpose, adult C. elegans were exposed for 24 h to NaAsO2 (10 µg/ml), DMA (200 µg/ml), HgCl2 (2 µg/ml), and meHgCl (0.5 µg/ml), concentrations that were equitoxic in juveniles for developmental delay. Whole genome gene expression profiles were determined by using Cellegans_UnrestrictedGE_G2519F_020186 Microarray (Agilent Technologies, Santa Clara, CA). The results showed significant changes in the transcriptome of adult C. elegans exposed to NaAsO2, DMA, HgCl2, or meHgCl relative to the control group (C. elegans treated with water). A total of 927 and 1221 differentially expressed genes (DEGs) were found in C. elegans treated with 10 µg/ml NaAsO2 or 200 µg/ml DMA, respectively. Interestingly, only 161 DEGs were in common for these two chemicals. Exposure to 2 µg/ml HgCl2 or 0.5 µg/ml meHgCl altered the expression of 670 and 485 genes, respectively, and out of these genes, 154 were commonly altered by the two treatments. Analysis of DEGs revealed that organic and inorganic forms of arsenic and mercury have different effects on the transcriptome of adult C. elegans.
2022-02-18 | GSE196891 | GEO
Project description:Gene expression changes during exponential growth of E. coli MG1655 were compared by RNA-seq after sub-acute exposure to inorganic mercuric chloride (HgCl2) or to the organomercurial, phenylmercuric-acetate (PMA). Differential gene expression revealed common and distinct responses to the mercurials from initial growth stasis through subsequent recovery. Sub-acute mercurial exposures affected expression of ~45% of all genes, many reflecting distinct biochemical damage by each mercurial and the corresponding cellular resources available for recovery of normal growth.
2018-02-20 | GSE95575 | GEO