Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Carbon nanotubes, but not graphene oxide, trigger chemokine production in primary human macrophages via MyD88 dependent NF-kB Pathway

ABSTRACT: The growing medical application of engineered nanomaterials (ENMs) necessitates better understanding of their molecular toxicity mechanisms governing immune effects. In the present study, a comprehensive mechanistic in vitro assessment of two carbon-based ENMs, single-walled carbon nanotubes (SWCNTs) and graphene oxide (GO), was performed using primary human monocyte-derived macrophages (HMDM) as a model. HMDM were exposed to SWCNTs and GO at concentrations 10–100 µg/ml for 24 h. Toxicity, reactive oxygen species (ROS) production and uptake of ENM by cells was measured. The changes in gene expression profile of HMDM in response to SWCNTs and GO were studied and the key stress response pathways identified. The transcriptomics and pathway enrichment analysis findings were verified by multiplex immunoassay and functional assays.

ORGANISM(S): Homo sapiens

PROVIDER: GSE83516 | GEO | 2017/09/30

SECONDARY ACCESSION(S): PRJNA326243

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

A transcriptomic overview of lung and liver changes one day after pulmonary exposure to graphene and graphene oxide

Project description:This study investigates transcriptomic differences in the lung and liver after pulmonary exposure to two Graphene based materials with similar physical properties, but different surface chemistry. Female C57BL/6 mouse were exposed by a single intratracheal instillation of 0, 18, 54 or 162 μg/mouse of graphene oxide (GO) or reduced graphene oxide (rGO). Pulmonary and hepatic transcriptional changes were compared to identify commonly and uniquely perturbed functions and pathways by GO and rGO. These changes were then related to previously analyzed endpoints. GO exposure induced more differentially expressed genes, affected more functions, and perturbed more pathways compared to rGO, both in the lung and liver.

2020-10-21 | GSE159707 | GEO

Improved Biocompatibility of Amino-functionalized Graphene Oxide in Caenorhabditis elegans

Project description:Graphene oxide (GO) holds high promise for diagnostic and therapeutic applications in nanomedicine but reportedly displays immunotoxicity, underlining the need for developing functionalized GO with improved biocompatibility. Here, we study the adverse effects of GO and amino-functionalized GO (GONH2) during Caenorhabditis elegans development and ageing upon acute or chronic exposure. Chronic GO treatment throughout the C. elegans development causes decreased fecundity and a reduction of animal size, while acute treatment does not lead to any measurable physiological decline. However, RNA-Seq data reveal that acute GO exposure induces innate immune gene expression. The p38 MAP kinase, PMK-1, which is a well-established master regulator of innate immunity, protects C. elegans from chronic GO toxicity, as pmk-1 mutants show reduced tissue-functionality and facultative vivipary. In a direct comparison, GONH2 exposure does not cause detrimental effects in the wild type or in pmk-1 mutants, and the innate immune response is considerably less pronounced. Our work establishes the enhanced biocompatibility of amino-functionalized GO in a whole-organism, emphasizing its potential as biomedical nanomaterial.

2022-05-10 | GSE131070 | GEO

Single-cell mass cytometry reveals the impact of graphene nanomaterials with human primary immune cells

Project description:The genome-wide transcriptome analysis highlight the increased biocompatibility on immune cells of graphene functionalized with amino groups (NH2) compared with graphene oxide (GO); reducing the cell metabolism disfunction. Moreover, GONH2 was found to polarizes T-cell and monocyte activation toward a T helper-1/M1 immune response.

2017-08-13 | GSE99929 | GEO

RNAseq of primary human monocyte derived macrophages (MDM) and differentiated THP-1 macrophages exposed to graphene-related (nano)materials (GRMs)

Project description:Occupational and consumer exposure to GRMs will increase but their impact on human health is still largely unknown. We sought to perform a transcriptome comparison of the bioresponses of MDM and THP-1 macrophages exposed to 5 or 20 µg/ml graphene oxide (GO) or graphene nanoplatelets (GNP) for 6 and 24 h to capture early and more persistent acute responses. Cristalline silica (DQ) was included as immunotoxic reference material.

2023-02-01 | E-MTAB-10099 | biostudies-arrayexpress

Graphene Oxide Substrate Promotes Neurotrophic Factor Secretion and Survival of Human Schwann-Like Adipose Mesenchymal Stromal Cells - RNAseq

Project description:Mesenchymal stromal cells from adipose tissue (AD-MSCs) exhibit favourable clinical traits for autologous transplantation and can develop a ‘Schwann-like’ phenotype (sAD-MSCs) to improve peripheral nerve regeneration, where severe injuries yield insufficient recovery. However, sAD-MSCs regress without biochemical stimulation and detach from conduits under unfavourable transplant conditions, negating their paracrine effects. Graphene-derived materials support AD-MSC attachment, regulating cell adhesion and function through physiochemistry and topography. We report graphene oxide (GO) as a suitable substrate for human sAD-MSCs incubation towards severe peripheral nerve injuries, through evaluating transcriptome changes, neurotrophic factor expression over a 7-day period, and cell viability in apoptotic conditions. Transcriptome changes from GO incubation across four patients were minor compared to biological variance.

2021-03-08 | E-MTAB-10078 | biostudies-arrayexpress

Expression data from Caenorhabditis elegans exposed to single-walled carbon nanotubes

Project description:The potential environmental risk of single-walled carbon nanotubes (SWCNTs) is evaluated using Caenorhabditis elegans (C. elegans) as an ecotoxicological animal model. Highly soluble amide-modified SWCNTs (a-SWCNTs) are used in the present study so that the dose-response impact of SWCNTs could be studied. mechanisms. a-SWCNTs are efficiently taken up by worms during feeding and cause significant toxicity in worms, including retarded growth, shortened lifespan and defective embryogenesis. Genome-wide gene expression analysis is performed to investigate the toxic molecular

2012-10-11 | GSE41486 | GEO

Next-generation sequencing reveals differential responses to acute versus long-term exposures to graphene oxide in human lung BEAS-2B cells

Project description:Numerous studies have addressed the biological impact of graphene-based materials including graphene oxide (GO), yet few have focused on long-term effects. Here, we utilized RNA-sequencing to unearth responses of human lung cells to GO. To this end, the BEAS-2B cell line derived from normal human bronchial epithelium was subjected to repeated, low-dose exposures of GO (1 µg/mL or 5 µg/mL) for 28 days, or to the equivalent, cumulative amount of GO for 48 h. Then, samples were analyzed by using the NovaSeq™ 6000 sequencing system followed by pathway analysis and gene ontology enrichment analysis of the differentially expressed genes. Significant differences were seen between the low-dose, long-term exposures and the high-dose, short-term exposures. Hence, exposure to GO for 48 h resulted in mitochondrial dysfunction. In contrast, exposure to GO for 28 days was characterized by engagement of apoptosis pathways with downregulation of genes belonging to the inhibitor of apoptosis protein (IAP) family. Validation experiments confirmed that long-term exposure to GO affected the apoptosis threshold in lung cells, accompanied by a loss of IAPs. These studies have revealed the sensitivity of RNA-sequencing approaches and showed that acute exposure to GO is not a good predictor of the long-term effects of GO.

2020-03-06 | GSE146482 | GEO

Graphene Oxide Attenuates Toxicity of Amyloid-β Aggregates in Yeast by Promoting Disassembly and Boosting Cellular Stress Response

Project description:Alzheimer’s disease (AD) is the most common form of neurodegenerations, with oligomerization and aggregation of amyloid-β peptides (Aβ) being one of its histopathological hallmarks. Recently, graphene oxide (GO) nanoflakes have attracted significant attention in biomedical fields by suppression of protein aggregation in vitro. However, the impact of GO on aggregated proteins in vivo is poorly understood. In earlier work, we developed a humanized AD model in yeast Saccharomyces cerevisiae by constitutively expressing Aβ42 peptides to mimic the chronic cytotoxicity during AD progression. Here we apply this in vivo model system to investigate the impact of GO on Aβ42 aggregates and cytotoxicity.

2023-09-28 | PXD029382 | Pride

Next-generation sequencing reveals size-dependent pulmonary impact of thin graphene oxide sheets in mice: towards safe-by-design

Project description:Safety assessment of graphene-based materials (GBMs) including graphene oxide (GO) is essential for their safe use across many sectors of society. In particular, the link between specific material properties and biological effects needs to be further elucidated. Here we compared the effects of lateral dimensions of GO sheets in acute and chronic pulmonary responses after single intranasal instillation in mice. Micrometre-sized GO (1–30 μm) induced stronger pulmonary inflammation than nanometre-sized GO, despite a reduced translocation to the lungs. Genome-wide RNA sequencing also revealed distinct size dependent effects of GO, in agreement with the histopathological results. Although large GO, but not the smallest GO (10–300 nm), triggered the formation of granulomas that persisted up to 90 days, no pulmonary fibrosis was observed. These results could be partly explained by the pattern of size-independent in situ biotransformation of GO, as evidenced by Raman spectroscopy imaging. Our findings demonstrate that lateral dimensions play a fundamental role in the pulmonary response to GO, and suggest that airborne exposure to micrometer sized GO should be avoided in production plant or applications, such as spray coating or painting, where aerosolised dispersions are likely to occur. These results are important for the development of evidence-based risk assessment, and provide information towards the implementation of a safer-by-design approach for GBM enhanced products and applications, for the benefit of workers and end-users.

2020-09-30 | GSE146796 | GEO