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Cerium oxide nanoparticle administration to skeletal muscle cells under different gravity and radiation conditions

ABSTRACT: Cerium oxide nanoparticle administration to skeletal muscle cells under different gravity and radiation conditions

PROVIDER: PRJNA694971 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13535300_1.fastq.gz	Fastqsanger.gz
	SRR13535300_2.fastq.gz	Fastqsanger.gz
	SRR13535301_1.fastq.gz	Fastqsanger.gz
	SRR13535301_2.fastq.gz	Fastqsanger.gz
	SRR13535302_1.fastq.gz	Fastqsanger.gz

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Cerium oxide nanoparticle administration to skeletal muscle cells under different gravity and radiation conditions

Project description:For their remarkable biomimetic properties implying strong modulation of the intracellular and extracellular redox state, cerium oxide nanoparticles (also termed “nanoceria”) were hypothesized to exert a protective role against oxidative stress associated to the harsh environmental conditions of spaceflight, characterized by microgravity and highly energetic radiations. Nanoparticles were supplied to proliferating C2C12 mouse skeletal muscle cells under different gravity and radiation levels (microgravity+cosmic radiations or Earth gravity+cosmic radiations on board the International Space Station; Earth gravity on ground). Biological responses were thus investigated at a transcriptional level by RNA next-generation sequencing. Lists of differentially expressed genes (DEGs) were generated and intersected by taking into consideration relevant comparisons, which led to the observation of prevailing effects of the space environment over those induced by nanoceria, possibly due to its administration during spaceflight. In space, up-regulation of transcription was slightly preponderant over down-regulation, and it implied involvement of intracellular compartments, with the majority of DEGs being consistently over- or under-expressed whenever present. Cosmic radiations regulated a higher number of DEGs than microgravity and seemed to promote increased cellular catabolism. By taking into consideration space physical stressors alone, microgravity and cosmic radiations appeared to have opposite effects at transcriptional level despite partial sharing of molecular pathways. Interestingly, gene ontology denoted some enrichment in terms related to vision, when only effects of radiation were assessed. The regulation of mitochondrial uncoupling protein 2 in space-relevant samples suggests perturbation of the intracellular redox homeostasis, and leaves open opportunities to antioxidant treatment for oxidative stress reduction in harsh environments.

2021-09-08 | GSE165565 | GEO

Cerium Oxide Nanoparticle Administration to Skeletal Muscle Cells under Different Gravity and Radiation Conditions.

Project description:For their remarkable biomimetic properties implying strong modulation of the intracellular and extracellular redox state, cerium oxide nanoparticles (also termed "nanoceria") were hypothesized to exert a protective role against oxidative stress associated with the harsh environmental conditions of spaceflight, characterized by microgravity and highly energetic radiations. Nanoparticles were supplied to proliferating C2C12 mouse skeletal muscle cells under different gravity and radiation levels. Biological responses were thus investigated at a transcriptional level by RNA next-generation sequencing. Lists of differentially expressed genes (DEGs) were generated and intersected by taking into consideration relevant comparisons, which led to the observation of prevailing effects of the space environment over those induced by nanoceria. In space, upregulation of transcription was slightly preponderant over downregulation, implying involvement of intracellular compartments, with the majority of DEGs consistently over- or under-expressed whenever present. Cosmic radiations regulated a higher number of DEGs than microgravity and seemed to promote increased cellular catabolism. By taking into consideration space physical stressors alone, microgravity and cosmic radiations appeared to have opposite effects at transcriptional levels despite partial sharing of molecular pathways. Interestingly, gene ontology denoted some enrichment in terms related to vision, when only effects of radiations were assessed. The transcriptional regulation of mitochondrial uncoupling protein 2 in space-relevant samples suggests perturbation of the intracellular redox homeostasis, and leaves open opportunities for antioxidant treatment for oxidative stress reduction in harsh environments.

| S-EPMC8414486 | biostudies-literature

Modulation of gene expression in rat muscle cells following treatment with nanoceria in different gravity regimes

Project description:The study evaluates potential protective effects of cerium oxide nanoparticles (nanoceria) against oxidative stress in muscle tissue, both on ground and in space

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Project description:In this study, we attempted to compare among the stress of Y2O3 nanoparticle and YCl3 to yeast cells. Yttrium oxide (Y2O3) nanoparticle is used in widespread applications. It has been reported that Y2O3 nanoparticle showed toxic activities. However, we assumed that the most important toxic factor of nanoparticles was metal ion release. We tried to prove the toxicity of yttrium nanoparticles comes from yttrium ion. Therefore, we used YCl3 as a positive control for evaluation of effects of yttrium ion.

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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.

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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

Cerium_Oxide_Nanoparticles_e_coli

Project description:The effects of cerium oxide nanoparticles on the gene expression of Gram-negative Escherichia coli is tested. 8 cultures of E. coli were treated with either cerium nanoparticles or cerium chloride solution at 50 mgs/ml. 4 cultures were untreated.

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Project description:The aim of this study was to investigate the effects of administration of carbon black nanoparticle (CB-NP) to pregnant mice on the development of lymphoid tissues in infantile mice. Pregnant ICR mice were treated with a suspension of CB-NP 95 microg/kg/time) by intranasal instillation, twice, on gestational day 5 and 9. Spleen and thymus were collected from offspring mice at 5 days post-partum. RNA sample was taken from spleen of 5-day-old mouse prenatally received carbon black nanoparticle, while control RNA was taken from control counterpart prenatally received distilled water. Comparisons among groups were made by one-color method with normalized data from Cy3 channels for data analysis.

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Project description:The effects of cerium oxide nanoparticles on the gene expression of Gram-negative Escherichia coli is tested.

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