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RNA-seq of C17.2 neuronal progenitor cells exposed to cerium oxide nanoparticles during cell differentiation

ABSTRACT: RNA-seq of C17.2 neuronal progenitor cells exposed to cerium oxide nanoparticles during cell differentiation

PROVIDER: PRJEB12625 | ENA |

REPOSITORIES: ENA

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RNA-seq of C17.2 neuronal progenitor cells exposed to cerium oxide nanoparticles during cell differentiation

Project description:We used a next-generation sequencing approach to understand the effects of antioxidant cerium oxide nanoparticles (CeO2) on neuronal stem cell differentiation. As a model we used the murine neuronal progenitor cell line, C17.2, which upon differentiation, is able to generate a mixed culture of neurons and neuroglial cells. As additional controls we used N-acetylcysteine (NAC), a conventional antioxidant and samarium doped cerium oxide nanoparticles (Sm-CeO2), as particle controls (as they bear a reduced antioxidant potential as compared to CeO2 alone). We had a time series approach and we investigates effects after 1, 4 and 7 days during differentiation. We revealed that CeO2 reduce axonal guidance signalling, neuronal differentiation and neuroglial differentiation after 7 days, thus having a negative effect on neuronal development. Overall, these effects are likely due to the antioxidant properties of nanoceria, although some evidence for a particle effect was also provided as indicated by the interference with cytoskeletal as well as integrin signaling genes both by nanoceria and Sm-doped nanoceria, but not by NAC.

2017-08-25 | E-MTAB-4398 | biostudies-arrayexpress

Zinc oxide Nanoparticles exposure impairs cranial neural crest development by inducing oxidant stress during chicken embryogenesis

Project description:This manuscript is about our recent work on investigating the effective mechanism of Zinc oxide Nanoparticles on the malformation of craniofacial skeleton. Briefly, we focused on addressing the phenotype of destroyed cranial neural crest cells’ development where the effect of oxidant stress was explored when developing early embryos were exposed to Zinc oxide Nanoparticles during the embryogenesis.

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Molecular mechanism of Arabidopsis thaliana seedlings in response to phytotoxicity of yttrium oxide nanoparticles

Project description:Due to the wide application of rare earth oxides nanoparticles in different fields, they will inevitably be released into the environment, and their potential toxicity and ecological risks in the environment have become a concern of people. Yttrium oxide nanoparticles are important members of rare earth oxides nanoparticles. The molecular mechanism of its influence on plant growth and development and plant response to them is unclear. In this study, we found that yttrium oxide nanoparticles above 2 mM significantly inhibited the growth of Arabidopsis seedlings. Using the Arabidopsis marker lines reflecting auxin signal, it was found that the treatment of yttrium oxide nanoparticles led to the disorder of auxin signal in root cells: the auxin signal in quiescent center cells and columella stem cells decreased; while the auxin signal in the stele cells was enhanced. In addition, trypan blue staining showed that yttrium oxide nanoparticles caused the death of root cells. Transcriptome sequencing analysis showed that yttrium oxide nanoparticles specifically inhibited the expression of lignin synthesis related genes, activated mitogen-activated protein kinase (MAPK) signaling pathway, and enhanced ethylene and ABA signaling pathways in plants. This study revealed the phytotoxicity of yttrium oxide nanoparticles at the molecular level, and provided a new perspective at the molecular level for plants to respond to rare earth oxide stress.

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Gene expression profile in zebrafish D. rerio exposed to metal oxidate nanoparticles

Project description:Metal oxide nanoparticles can exert adverse effects on humans and aquatic organisms. However, the toxic effects and mechanisms of MO-NPs are not clearly understood.We investigated the toxic effects and mechanisms of copper oxide, zinc oxide, and nickel oxide nanoparticles in Danio rerio using microarray analysis.

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Gene expression profile of 3D liver organoids composed of hepatocyte and Kupffer cells exposed to nanoparticles.

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Whole genome analysis of iron oxide nanoparticles treated mensenchymal stem cells

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Project description:The Interaction of iron oxide nanoparticles with human plasma was studied.

2019-04-11 | PXD004441 | Pride

Project description:This study investigated the pulmonary toxicity of Copper oxide nanoparticles (CuO NPs) surface modified with polyethylenimine (PEI) or ascorbate (ASC), was investigated. Rats were exposed nose-only to a fixed exposure concentration of ASC or PEI coated CuO NPs for 5 consecutive days. On day 6 and day 27 post-exposure, pulmonary toxicity markers in bronchoalveolar lavage fluid (BALF) were analyzed and histopathological evaluation of the lungs was performed, along with microarray analyses on whole lung tissue samples.

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RNAseq of human epithelial lung carcinoma cell line A549 exposed to ceria, silver or zinc ions, micron-sized particles or nanoparticles

Project description:The toxicity of silver and zinc oxide nanoparticles is hypothesised to be mediated by dissolved metal ions and cerium dioxide nanoparticles (CeO2 NPs) are hypothesised to induce toxicity specifically by oxidative stress dependant on their surface redox state. To test these hypotheses, RNAseq was applied to characterise the molecular responses of cells to metal nanoparticle and metal ion exposures. The human epithelial lung carcinoma cell line A549 was exposed to different CeO2 NPs with different surface charges, micron-sized and nano-sized silver particles and silver ions, micron-sized and nano-sized zinc oxide particles and zinc ions, or control conditions, for 1 hour, 6 hours and 24 hours. Concentrations were the lower of either EC20 or 128 micrograms/mL. Transcriptional responses were characterised by RNAseq transcriptomics using an Illumina HiSeq2500 .

2018-02-01 | E-MTAB-5734 | biostudies-arrayexpress

Transcriptomic fingerprints of C. elegans exposed to citrate coated superparamagnetic iron oxide nanoparticles (C-SPIONs)

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2018-01-05 | GSE93187 | GEO

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