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Whole transcriptome analysis of cadmium sulphide quantum dots response in Saccharomyces cerevisiae

ABSTRACT: Whole transcriptome analysis of cadmium sulphide quantum dots response in Saccharomyces cerevisiae

PROVIDER: PRJNA517461 | ENA |

REPOSITORIES: ENA

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Whole transcriptome analysis of cadmium sulphide quantum dots response in Saccharomyces cerevisiae

Project description:Cadmium sulphide quantum dots (CdS QDs) are widely used in novel equipment. The relevance of the research lies in the need to develop risk assessments for nanomaterials (ENMs), using baker's yeast as model system. A whole-genome microarray experiment, performed on Saccharomyces cerevisiae (BY4742), showed how genes were regulated in response to CdS QDs.

2019-04-03 | GSE125759 | GEO

Transcriptome Profile of Quantum Dots on Saccharomyces cerevisiae

Project description:Transcriptome Profile of CdSe/ZnS and InP/ZnS Quantum Dots on Saccharomyces cerevisiae

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Isolating the Escherichia coli transcriptomic responses to superoxide generation and stress from cadmium chalcogenide quantum dots

Project description:In this study we investigate the transcriptomic response of Escherichia coli to CdTe-2.4 and benign CdSe-2.4 quantum dots, each with and without illumination to elucidate the phototherapeutic effect of CdTe-2.4. Our analysis sought to separate the transcriptomic responses of E. coli to the presence of superoxide and the presence of cadmium chalcogenide nanoparticles. We found eight genes to be consistently differentially expressed as a response to superoxide generation, and these genes demonstrate a consistent association with the DNA damage response and deactivation of iron-sulfur clusters, characteristic of a superoxide response. We found eighteen genes associated the presence of cadmium-based quantum dots, in isolation from the superoxide effect. In further analysis of these genes, we performed both amino acid supplementation and gene knockout experiments, identifying the importance of leucyl-tRNA downregulation as a cadmium-based QD response, as well as reinforcing the relationship between CdTe-2.4 stress and iron-sulfur clusters through the gene tusA. This study demonstrates the transcriptomic response of E. coli to CdTe-2.4 and CdSe-2.4 quantum dots and parses the different effects of superoxide versus material effects on the bacteria. Our findings may provide useful information towards the development of quantum dot-based antibacterial therapy in the future.

2019-02-02 | GSE126008 | GEO

Transcriptome Profile of Quantum Dots on Saccharomyces cerevisiae

Project description:Transcriptome Profile of Quantum Dots on Saccharomyces cerevisiae

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A genome-wide approach in Arabidopsis thaliana to assess the toxicity of cadmium sulfide quantum dots

2014-06-15 | GSE53989 | GEO

Danio rerio

Project description:Bioaccumulation, cellular and molecular effects in adult zebrafish after exposure to cadmium sulphide quantum dots and ionic cadmium

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A genome-wide approach in Arabidopsis thaliana to assess the toxicity of cadmium sulfide quantum dots

Project description:Cadmium sulfide quantum dots (CdS QDs) are widely used in novel equipment. The relevance of the research lies in the need to develop risk assessments for nanomaterials, using as basis a model plant species. Here a screen of Arabidopsis thaliana mutant lines was performed in an attempt to identify plants tolerant to CdS QDs. Two tolerant Ds insertion mutant lines (atnp01 and atnp02) were identified. A whole-genome microarray experiment showed how genes were regulated by CdS QDs. Most of the genes involved in the response to CdS QDs were related to detoxification and general metabolism. The two mutant lines treated with CdS QDs showed different patterns of gene expression. The genome-wide expression profile of seedlings of the two selected resistant mutants were acquired and compared to that of wild type seedlings using the Arabidopsis ATH1 Genome Array. The wild type seedlings were exposed to either 0 mg/L, 40 mg/L (1/2 MIC) or 80 mg/L (MIC wt) CdS QDs, and each of the resistant/tolerant mutant line plants to either 0 mg/L or 80 mg/L CdS QDs for 21 days.

2014-06-15 | E-GEOD-53989 | biostudies-arrayexpress

Isolating the Escherichia coli transcriptomic responses to superoxide generation and stress from cadmium chalcogenide quantum dots

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The RNA methylation level of A549 was altered by nanomaterial incubation.

Project description:We reported changes in RNA methylation levels in A549 cells caused by black phosphorus quantum dots and titanium dioxide nanoparticles.

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Whole blood derived cadmium responsive miRNome

Project description:Purpose: Cadmium is a nonessential heavy metal and a well known toxic agent. Cadmium is known to alter the gene expression and signaling but the role of miRNAs during Cadmium exposure is not understood. Methods: Mice were treated with 100 mg/ ml cadmium chloride for 120 days and accumulation of cadmium in blood and organs are confirmed by GFAAS. Subsequently, the total RNA was isolated from the whole blood and small RNA sequencing was executed in Illumina HiSeq 1000. Results: The reads were annotated to the mice genome and miRNAs in miRbase using miRDeep* and novel miRNAs were also predicted. The differential expression was studied by DeSeq Conclusions: This is the first report to reveal the cadmium responsive miRNome. These candidate miRNAs can serve as biomarkers for cadmium Whole blood small RNA profiles of control and cadmium exposed mice generated by deep sequencing using Illumina HiSeq 1000

2015-11-01 | E-GEOD-73744 | biostudies-arrayexpress

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