Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11431108_1.fastq.gz | Fastqsanger.gz | |||
| SRR11431108_2.fastq.gz | Fastqsanger.gz | |||
| SRR11431109_1.fastq.gz | Fastqsanger.gz | |||
| SRR11431109_2.fastq.gz | Fastqsanger.gz | |||
| SRR11431110_1.fastq.gz | Fastqsanger.gz |
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Project description:Cellular uptake and cytotoxicity data from neural cells treated with microplastics were compared and contrasted. Transcriptomic data obtained by RNA-seq from astrocytes treated with microplastics was assessed further.
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Project description:Microplastics represent a growing environmental concern for the oceans due to their potential capability to adsorb different classes of pollutants, thus representing a still unexplored source of exposure for aquatic organisms. In this study polystyrene (PS) microplastics were characterized for their capability to adsorb pyrene (PYR) as model compound for polycyclic aromatic hydrocarbons, and transfer this chemical to filter feeding mussels Mytilus galloprovincialis. Gene expression analyses of Mytilus galloprovincialis exposed to polystyrene (PS) microplastics and to polystyrene contaminated with pyrene (PS-PYR) have been performed trough a DNA microarray platform.
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Project description:Polyethylene terephthalate microplastics generated from disposable water bottles induce interferon signalling pathway in mouse lung epithelial cells
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Project description:The contamination of marine ecosystems with microplastics, such as the polymer polyethylene, a commonly used component of single-use packaging, is of global concern. Although it has been suggested that biodegradable polymers, such as polylactic acid, may be used to replace some polyethylene packaging, little is known about their effects on marine organisms. Blue mussels, Mytilus edulis, have become a “model organism” for investigating the effects of microplastics in marine ecosystems. We show here that repeated exposure, over a period of 52 days in an outdoor mesocosm setting, of M. edulis to polyethylene microplastics reduced the number of byssal threads produced and the attachment strength (tenacity) by ~50%. Exposure to either type of microplastic altered the haemolymph proteome and, although a conserved response to microplastic exposure was observed, overall polyethylene resulted in more changes to protein abundances than polylactic acid. Many of the proteins affected are involved in vital biological processes, such as immune- and stress- regulation, metabolism and cellular and structural development. Our study highlights the utility of mass spectrometry-based proteomics to assess the health of key marine organisms and identifies the potential mechanisms by which microplastics, both conventional and biodegradable, could affect their ability to form and maintain reefs.
2019-01-02 | PXD011567 | Pride
Project description:Microplastics (MPs) are considered as one of the main reasons for male and female infertility. However, the reproductive toxicity and its related mechanisms are understood by animal models with acute exposure to MPs at present. In the study, we show the low-dose polystyrene microplastics (PSMPs) exposure results in severely abnormal reproduction in female, but not male in mouse model, exhibiting failed oocyte meiotic maturation. Mechanistically, the PSMPs exposure induces the over-activation of cell metabolism pathways, insufficient HDACs and H4K16 hyperacetylation in oocytes in vivo and in vitro. By addition of HDAC3 inhibitor, the failed oocyte maturation, over-activation of cell metabolism pathways and H4K16 hyperacetylation are recapitulated, and the overexpression of HDAC3 can rescue the defects of meiotic maturation induced by PSMPs. Our observations suggest a direct link of the maturation defects induced by PSMPs to HDAC3 insufficiency. Thus, we propose the potential treatments for therapy of the failed meiotic maturation of oocyte from women highly exposed to MPs by activating or supplying HDAC3.
2024-03-06 | GSE259264 | GEO
Project description:The pollution of the environment with microplastics has been recognized as an emerging threat worldwide. Due to an exponential increase in production of plastic over the last eight decades and its longevity in the environment, accumulating amounts of microplastic are polluting rivers, lakes and the ocean. Their entry pathways are diverse and still only incompletely understood. Since microplastics are usually defined smaller than 5 mm, it can be ingested by a wide range of aquatic organisms including teleost fish. There are different approaches to study the detrimental effects of pollutants on aquatic organisms. On the one hand, generic baseline parameters such as growth and mortality are regularly considered, often accompanied by established stress parameters such as cortisol, heat shock proteins or lipid oxidation. The conflicting findings to date suggest that these parameters might not be sensitive enough to indicate the physiological effects of environmentally relevant microplastic concentrations. For this reason, more sophisticated biological approaches could provide new insights into whether and how microplastics harm fish. To date, proteomic approaches have been used only sporadically when investigating the effects of microplastic exposure on aquatic organisms. So far, this approach has not been used to address potential microplastic impacts in fish. In the present study, a proteomic approach was trialed alongside established methods in an investigation of fish experiencing long-term exposure to environmentally relevant concentrations of microplastics. Two groups of rainbow trout (Oncorhynchus mykiss were exposed to microplastic concentrations and sizes currently encountered in wild fish and an increased concentration, expected to occur in the near future. These groups where compared to a control group maintained in MP free conditions. Five fish of each treatment were sampled at three time points (week 1, week 4, week 17). The experiments were performed in triplicates, resulting in 45 samples used in the proteomic analysis.
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Project description:Microplastics (MPs) as widespread contamination pose high risk for aquatic organisms.Intestinal microbiotahas have high interaction with immune system of host body. In this study, intestinal microbiota of zebrafish after Polystyrene (PS-MPs) exposure were characterized by 16S rDNA amplicon sequencing. We found that 100nm and 200μm PS-MPs exposure significantly increased diversity of intestinal microbiota and all the three sizes of PS-MPs increased abundance of pathogenic bacteria.
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