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Integrated multi-omics analysis reveals the underlying molecular mechanism for developmental neurotoxicity of perfluorooctanesulfonic acid in zebrafish

ABSTRACT: Integrated multi-omics analysis reveals the underlying molecular mechanism for developmental neurotoxicity of perfluorooctanesulfonic acid in zebrafish

PROVIDER: PRJNA950976 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24036820_1.fastq.gz	Fastqsanger.gz
	SRR24036820_2.fastq.gz	Fastqsanger.gz
	SRR24036821_1.fastq.gz	Fastqsanger.gz
	SRR24036821_2.fastq.gz	Fastqsanger.gz
	SRR24036822_1.fastq.gz	Fastqsanger.gz

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Integrated multi-omics analysis reveals the underlying molecular mechanism for developmental neurotoxicity of perfluorooctanesulfonic acid in zebrafish

Project description:Limited studies on multi-omics have been conducted to comprehensively investigate the molecular mechanism underlying the developmental neurotoxicity of perfluorooctanesulfonic acid (PFOS). In this study, the locomotor behavior of zebrafish larvae was assessed under the exposure to 0.1–20 μM PFOS based on its reported neurobehavioral effect. After the number of zebrafish larvae was optimized for proteomics and metabolomics studies, three kinds of omics (i.e., transcriptomics, proteomics, and metabolomics) were carried out with zebrafish larvae exposed to 0.1, 1, 5, and 10 μM PFOS. More importantly, a data-driven integration of multi-omics was performed to elucidate the toxicity mechanism involved in developmental neurotoxicity. In a concentration-dependent manner, exposure to PFOS provoked hyperactivity and hypoactivity under light and dark conditions, respectively. Individual omics revealed that PFOS exposure caused perturbations in the pathways of neurological function, oxidative stress, and energy metabolism. Integrated omics implied that there were decisive pathways for axonal deformation, neuroinflammatory stimulation, and dysregulation of calcium ion signaling, which are more clearly specified for neurotoxicity. Overall, our findings broaden the molecular understanding of the developmental neurotoxicity of PFOS, for which multi-omics and integrated omics analyses are efficient for discovering the significant molecular pathways related to developmental neurotoxicity in zebrafish.

2023-04-04 | GSE228664 | GEO

Integrative multi-omics reveals analogous developmental neurotoxicity mechanisms between perfluorobutanesulfonic acid and perfluorooctanesulfonic acid in zebrafish

Project description:The molecular mechanism of perfluorobutanesulfonic acid (PFBS), an alternative to legacy perfluorooctanesulfonic acid (PFOS), remains to be understood. Therefore, we conducted a developmental toxicity evaluation on zebrafish embryos exposed to PFBS and PFOS and assessed neurobehavioral changes at concentrations below each point of departure (POD) determined by embryonic mortality. Using transcriptomics, proteomics, and metabolomics, biomolecular perturbations in response to PFBS were profiled and then integrated for comparison with those for PFOS. Although PFBS (7525.47 M POD) was approximately 700 times less toxic than PFOS (11.42 M POD), similar alteration in behavioral assessment and neurochemical analysis was observed at the corresponding ratios of low and high concentrations. Multi-omics analysis revealed that the PFBS neurotoxicity mechanism was associated with oxidative stress, lipid metabolism, and glycolysis/glucogenesis. The commonalities in developmental neurotoxicity-related mechanisms between PFBS and PFOS interconnected by knowledge-based integration of multi-omics included the calcium signaling pathway, lipid homeostasis, and primary bile acid biosynthesis. Despite being less toxic than PFOS, PFBS exhibited similar dysregulated molecular mechanisms, suggesting that chain length differences do not affect the intrinsic toxicity mechanism. Overall, carefully managing potential toxicity of PFBS can secure its status as an alternative to PFOS.

2023-04-04 | GSE228670 | GEO

Integrative multi-omics reveals analogous developmental neurotoxicity mechanisms between perfluorobutanesulfonic acid and perfluorooctanesulfonic acid in zebrafish

Project description:Integrative multi-omics reveals analogous developmental neurotoxicity mechanisms between perfluorobutanesulfonic acid and perfluorooctanesulfonic acid in zebrafish

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Integrated analysis of omics profiles

Project description:This SuperSeries is composed of the following subset Series: GSE32691: Autoantibody profile timecourse of UNK GSE32874: Personal Omics Profiling Reveals Dynamic Molecular Phenotypes and Actionable Medical Risks Refer to individual Series

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Integrated multi-omics analysis

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Transcriptome analysis reveals differences in developmental neurotoxicity mechanism of methyl-, ethyl-, and propyl- parabens in zebrafish embryos

Project description:Limited studies on comparison of developmental (neuro)toxicity of parabens have been conducted and unharmonized concentrations between phenotypic observations and transcriptomic analysis hamper understanding of their differential molecular mechanism. Developmental toxicity testing was conducted with commonly used methyl- (MtP), ethyl- (EtP) and propyl-paraben (PrP) in zebrafish embryos. Based on benchmark dose 5% (BMD5), embryonic mortality based-point of departure (M-PoD) values of three parabens were determined and changes in locomotor behavior were evaluated at concentrations of 0, M-PoD/50, M-PoD/10, and M-PoD in which transcriptomic analysis was conducted to explore the underlying neurotoxicity mechanism. Higher long-chained parabens were more toxic than short-chained parabens, as determined by M-PoD values of 154.1, 72.6, and 24.2 µM for MtP, EtP, and PrP, respectively. While exposure to EtP resulted in hyperactivity, no behavior effect was observed by MtP and PrP. Transcriptomics analysis revealed that abnormal behaviors in EtP-exposed group are associated with the distinctly enriched pathways in signal, transport, calcium ion binding, and metal-binding. In contrast, exposure to MtP and PrP mainly disrupted the membrane and transmembrane, which are closely linked to abnormal embryonic development rather than neurobehavior changes. According to the changes in expression of signature mRNAs, tentative transcriptomic-based PoD (T-PoD) values for each paraben were determined as MtP (2.68 µM), EtP (3.85 µM), and PrP (1.4 µM).

2023-08-07 | GSE239773 | GEO

Longitudinal multi-omics reveals subset-specific mechanisms underlying irritable bowel syndrome

Project description:Longitudinal multi-omics reveals subset-specific mechanisms underlying irritable bowel syndrome

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An integrative omics approach reveals posttranscriptional mechanisms underlying circadian temperature compensation

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Genetic factors underlying immune response to tick infestation of resistant and susceptible cattle unrevealed by omics data integration

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Unravelling the molecular mechanism underlying drought stress response in chickpea <i>via</i> integrated multi-omics analysis.

Project description:Drought stress affects growth and productivity significantly in chickpea. An integrated multi-omics analysis can provide a better molecular-level understanding of drought stress tolerance. In the present study, comparative transcriptome, proteome and metabolome analyses of two chickpea genotypes with contrasting responses to drought stress, ICC 4958 (drought-tolerant, DT) and ICC 1882 (drought-sensitive, DS), was performed to gain insights into the molecular mechanisms underlying drought stress response/tolerance. Pathway enrichment analysis of differentially abundant transcripts and proteins suggested the involvement of glycolysis/gluconeogenesis, galactose metabolism, and starch and sucrose metabolism in the DT genotype. An integrated multi-omics analysis of transcriptome, proteome and metabolome data revealed co-expressed genes, proteins and metabolites involved in phosphatidylinositol signaling, glutathione metabolism and glycolysis/gluconeogenesis pathways, specifically in the DT genotype under drought. These stress-responsive pathways were coordinately regulated by the differentially abundant transcripts, proteins and metabolites to circumvent the drought stress response/tolerance in the DT genotype. The QTL-hotspot associated genes, proteins and transcription factors may further contribute to improved drought tolerance in the DT genotype. Altogether, the multi-omics approach provided an in-depth understanding of stress-responsive pathways and candidate genes involved in drought tolerance in chickpea.

| S-EPMC10242046 | biostudies-literature

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