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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Effects of CBD on the glioma stem cell molecular signature

ABSTRACT: Primary glioma stem cells cultured as neurospheres in NBL media with growth factors were subjected to treatment with the non-toxic, non-psychoactive cannabis compound cannabidiol (CBD). Control and CBD- treated cultures were used to generate RNA used to hybridize on Affymetrix DNA arrays Fluorescence intensities data were RMA-normalized using Partek software.

ORGANISM(S): Homo sapiens

SUBMITTER: Saleena Ghanny

PROVIDER: E-GEOD-57978 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Reactive oxygen species-mediated therapeutic response and resistance in glioblastoma.

Singer E E Judkins J J Salomonis N N Matlaf L L Soteropoulos P P McAllister S S Soroceanu L L

Cell death & disease 20150115

Glioblastoma (GBM) resistance to therapy is the most common cause of tumor recurrence, which is ultimately fatal in 90% of the patients 5 years after initial diagnosis. A sub-population of tumor cells with stem-like properties, glioma stem cells (GSCs), is specifically endowed to resist or adapt to the standard therapies, leading to therapeutic resistance. Several anticancer agents, collectively termed redox therapeutics, act by increasing intracellular levels of reactive oxygen species (ROS). I ...[more]

PMID: 25590811

Similar Datasets

Effects of CBD on the glioma stem cell molecular signature

Project description:Primary glioma stem cells cultured as neurospheres in NBL media with growth factors were subjected to treatment with the non-toxic, non-psychoactive cannabis compound cannabidiol (CBD). Control and CBD- treated cultures were used to generate RNA used to hybridize on Affymetrix DNA arrays

2015-04-17 | GSE57978 | GEO

The comparison of exosomal miRNAs from ECM or media derived from HFF-CBD-Lamp2b cells, HFF cells, HFF-Lamp2b cells and hUCMSCs

Project description:The next-generation sequencing technology was used to investigate the difference of RNAs content among the different types of exosomes from the media of HFF cells, HFF-Lamp2b cells and hUCMSCs, and from the ECM of HFF-CBD-Lamp2b cells

2021-10-12 | E-MTAB-10905 | biostudies-arrayexpress

Quantitative profiling of axonal guidance proteins during the differentiation of human neurospheres

Project description:Axon guidance is required for the establishment of brain circuits. Whether much of the molecular basis of axon guidance is known from animal models, the molecular machinery coordinating axon growth and pathfinding in humans remains to be elucidated. The use of induced pluripotent stem cells (iPSC) from human donors has revolutionized in vitro studies of the human brain. iPSC can be differentiated into neuronal stem cells which can be used to generate neural tissue-like cultures, known as neurospheres, that reproduce, in many aspects, the cell types and molecules present in the brain. Here, we analyzed quantitative changes in the proteome of neurospheres during differentiation. Relative quantification was performed at early time points during differentiation using iTRAQ-based labeling and LC-MS/MS analysis. We identified 6438 proteins, from which 433 were downregulated and 479 were upregulated during differentiation. We show that human neurospheres have a molecular profile that correlates to the fetal brain. During differentiation, upregulated pathways are related to neuronal development and differentiation, cell adhesion and axonal guidance whereas cell proliferation pathways were downregulated. We developed a functional assay to check for neurite outgrowth in neurospheres and confirmed that neurite outgrowth potential is increased after 10 days of differentiation and is enhanced by increasing cyclic AMP levels. The proteins identified here represent a resource to monitor neurosphere differentiation and coupled to the neurite outgrowth assay can be used to functionally explore neurological disorders using human neurospheres as a model.

2021-02-25 | PXD024177 | Pride

Effects of (-)-cannabidiol on human sebocytes

Project description:In the current study, we aimed at exploring the effects of the major non-psychotropic phytocannabinoid of Cannabis sativa, (-)-cannabidiol (CBD), on human sebaceous gland functions. We found that CBD behaved as a highly effective anti-acne agent, targeting all the three key, sebocyte-specific steps of the pathogenesis (i.e. without compromising viability or basal sebaceous lipid production, CBD normalized pro-acne agents-induced excessive lipid synthesis, reduced proliferation and exerted anti-inflammatory actions). The goal of the present microarray analyses was to identify signaling pathways and target genes being involved in mediating the above beneficial effects of CBD. Microarray analyses were performed by using three independent sets of control (vehicle-treated) and CBD-treated (10 M-NM-<M, 24-hr) human, immortalized SZ95 sebocytes. The first two sets of the samples were analyzed by two-color microarrays (M-bM-^@M-^\rep1M-bM-^@M-^] and M-bM-^@M-^\rep2M-bM-^@M-^]). Later on, the RNA from the second sample set was used for the M-bM-^@M-^\rep2-1M-bM-^@M-^] hybridization (techical repeat). Finally, we analyzed the third (biological) sample set by using one-color microarray (M-bM-^@M-^\rep3M-bM-^@M-^]).

2014-07-29 | E-GEOD-57571 | biostudies-arrayexpress

Inferring transcriptional and microRNA-mediated regulatory programs in glioblastoma

Project description:Large-scale cancer genomics projects are profiling hundreds of tumors at multiple molecular layers, including copy number, mRNA and miRNA expression, but the mechanistic relationships between these layers are often excluded from computational models. We developed a supervised learning framework for integrating molecular profiles with regulatory sequence information to reveal regulatory programs in cancer, including miRNA-mediated regulation. We applied our approach to 320 glioblastoma profiles and identified key miRNAs and transcription factors as common or subtype-specific drivers of expression changes. We confirmed that predicted gene expression signatures for proneural subtype regulators were consistent with in vivo expression changes in a PDGF-driven mouse model. We tested two predicted proneural drivers, miR-124 and miR-132, both underexpressed in proneural tumors, by overexpression in neurospheres and observed a partial reversal of corresponding tumor expression changes. Computationally dissecting the role of miRNAs in cancer may ultimately lead to small RNA therapeutics tailored to subtype or individual. miRNA mimetics were transfected to PDGFRA amplified neurosphere cell lines. Gene expression was measured 24 hours after transfection

2011-10-11 | E-GEOD-32876 | biostudies-arrayexpress

Posttranslational modifications mediate the structural diversity of tauopathy strains

Project description:Tau aggregation is the defining pathological hallmark of tauopathies, but structural insights are revealing key differences between filaments across this class of disorders. Using cryo-electron microscopy, we identify a 107-residue fragment, K274-E380, which forms the insoluble core of tau filaments in the tauopathy corticobasal degeneration (CBD). This tau conformer is distinct from those identified in Alzheimer’s Disease (AD), Pick’s Disease, and Chronic Traumatic Encephalopathy, pointing towards a “one strain per disease” paradigm. Each disease-specific conformer can pack into multiple fibril subtypes and, despite similarities in secondary structure elements between tau filaments from CBD and AD, mass spectrometry revealed key differences in posttranslational modifications (PTMs). Given the abundance of lysine residues in the insoluble tau filament core in both CBD and AD, ubiquitination and acetylation are identified as key PTMs that compete to modify specific residues, which may ultimately determine filament morphology.

2020-02-14 | PXD016862 | Pride

The effects of cannabinoids on gene expression in glioma cells

Project description:The human glioma cell lines T98G and U87MG were cultured in media alone, with cannabidiol (CBD), tetrahydrocannabinol (THC) or a combination of CBD and THC at different ratios for 4 hours. Cells were then harvested and RNA isolated by Trizol. Total RNA was labelled and hybridised to Illumina Human HT-12v4 arrays.

2015-11-21 | E-MTAB-3666 | biostudies-arrayexpress

Expression analysis of big neurospheres generated in vitro

Project description:Expression analysis of neurospheres generated in vitro treated by potassium chloride (KCl) and norepinephrine Neurospheres generated in vitro were treated with norepinephrine or potassium chloride. Gene expression analysis was then carried out to identify genes that are up or down regulated due to chemical treatment.

2015-06-12 | E-GEOD-67304 | biostudies-arrayexpress

E14.5 mouse cortical neurospheres in response to Fezf2 over-expression

Project description:RNA Sequencing of E14.5 mouse cortical neurospheres in response to Fezf2 over-expression 2 replicates each of GFP-transfected or Fezf2/GFP-transfected E14.5 mouse cortical neurospheres. Paired-end sequencing 101bp.

2014-07-06 | E-GEOD-56446 | biostudies-arrayexpress

Comparison between mouse ES/iPS derived neurosphere and mouse primary culture of neurospheres obtained from fetal mouse ganglionic eminence

Project description:Recent reports have emphasized the pitfalls of iPSC technology including the potential for immunogenicity of transplanted cells. It is serious safety-related concern for iPSC-based cell therapy. However, preclinical data supporting the safety and efficacy of iPSCs are also accumulating. To address the concern of immunogenicity of ESCs/iPSCs or ESCs/iPSCs-derived neurospheres, global gene expression profiles were compared between undifferentiated mouse ESCs (EB3 line), mouse iPSCs (38C2 line), and ESC/iPSC-derived neurosphere and mouse primary culture of neurosphere obtained from fetal mouse ganglionic eminence. Mouse adult sklin fibroblast was used as a control. We used affymetrix microarrays to compare the global gene expression of neurospheres prepared several origins. Keywords: Expression profiling by array RNA extracted from neurospheres was hybridized to Affymetrix microarrays.

2012-03-01 | E-GEOD-31725 | biostudies-arrayexpress

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