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Oxidative Stress Impact on the Transcriptome of Differentiating Neuroblastoma Cells

ABSTRACT: Oxidative Stress Impact on the Transcriptome of Differentiating Neuroblastoma Cells

PROVIDER: PRJNA679725 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13090300_1.fastq.gz	Fastqsanger.gz
	SRR13090300_2.fastq.gz	Fastqsanger.gz
	SRR13090301_1.fastq.gz	Fastqsanger.gz
	SRR13090301_2.fastq.gz	Fastqsanger.gz
	SRR13090302_1.fastq.gz	Fastqsanger.gz

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Oxidative Stress Impact on the Transcriptome of Differentiating Neuroblastoma Cells

Project description:Prenatal environmental exposures that have been shown to induce oxidative stress (OS) during pregnancy, such as smoking and alcohol consumption, are risk factors for the onset of schizophrenia and other neurodevelopmental disorders (NDDs). While the OS role in the etiology of neurodegenerative diseases is well known, its contribution to the genomic dysregulation associated with psychiatric disorders is less well defined. In this study we used SH-SY5Y cell line and applied RNA-sequencing to explore transcriptomic changes in response to OS before or during neural differentiation. We observed differential expression of many genes, most of which localised to the synapse and involved in neuronal differentiation. These genes were enriched in schizophrenia-associated signalling pathways, including PI3K/Akt, axon guidance, and signalling by retinoic acid. Interestingly, circulatory system development was affected by both treatments, which is concordant with observations of increased prevalence of cardiovascular disease in patients with NDDs. We also observed a very significant increase in the expression of immunity-related genes, supporting current hypotheses of immune system involvement in psychiatric disorders. These data suggest that early life exposure to OS has a disruptive influence on neuronal gene expression that may perturb normal differentiation and neurodevelopment, thereby contributing towards overall risk for developing psychiatric diseases.

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Transcriptomes in Human neuroblastoma cell line SH-SY5Y under oxidative stress conditions

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Project description:Oxidative stress as a result of cigarette smoking is an important etiological factor in the pathogenesis of chronic obstructive pulmonary disease (COPD), a chronic steroid-insensitive inflammatory disease of the airways. The activity of the transcriptional co-repressor Histone deacetylase-2 (HDAC2) is dramatically reduced in COPD and cells exposed to oxidative stress or cigarette smoke. Moreover, curcumin (diferuloylmethane), a dietary polyphenol, at concentrations upto 1uM specifically restores cigarette smoke extract (CSE)- or oxidative stress- impaired HDAC2 activity. The aim of this study was to therefore identify any links through those gene sets that are affected by oxidative stress and subsequent treatment with curcumin in order to determine whether or not this could explain the impact of curcumin on restoration of oxidant impaired HDAC2 transcriptional co-repressor activity. Keywords: time course

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oxidative stress Methanoperedens nitroreducens

Project description:oxidative stress Methanoperedens nitroreducens

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Oxidative Stress Impact on the Transcriptome of Differentiating Neuroblastoma Cells: Implication for Psychiatric Disorders.

Project description:Prenatal environmental exposures that have been shown to induce oxidative stress (OS) during pregnancy, such as smoking and alcohol consumption, are risk factors for the onset of schizophrenia and other neurodevelopmental disorders (NDDs). While the OS role in the etiology of neurodegenerative diseases is well known, its contribution to the genomic dysregulation associated with psychiatric disorders is less well defined. In this study we used the SH-SY5Y cell line and applied RNA-sequencing to explore transcriptomic changes in response to OS before or during neural differentiation. We observed differential expression of many genes, most of which localised to the synapse and were involved in neuronal differentiation. These genes were enriched in schizophrenia-associated signalling pathways, including PI3K/Akt, axon guidance, and signalling by retinoic acid. Interestingly, circulatory system development was affected by both treatments, which is concordant with observations of increased prevalence of cardiovascular disease in patients with NDDs. We also observed a very significant increase in the expression of immunity-related genes, supporting current hypotheses of immune system involvement in psychiatric disorders. While further investigation of this influence in other cell and animal models is warranted, our data suggest that early life exposure to OS has a disruptive influence on neuronal gene expression that may perturb normal differentiation and neurodevelopment, thereby contributing towards overall risk for developing psychiatric diseases.

| S-EPMC7731408 | biostudies-literature

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Control of oxidative stress by miRNA and impact on ovarian tumorigenesis

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