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Gene expression profiling of melanoma cell lines (carrying NF1 loss-of-function) treated with DMSO (vehicle), MTX-216, MTX-211, trametinib, the combination of MTX-216 and trametinib, or pictilisib

ABSTRACT: Gene expression profiling of melanoma cell lines (carrying NF1 loss-of-function) treated with DMSO (vehicle), MTX-216, MTX-211, trametinib, the combination of MTX-216 and trametinib, or pictilisib

PROVIDER: PRJNA881612 | ENA |

REPOSITORIES: ENA

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Gene expression profiling of melanoma cell lines (carrying NF1 loss-of-function) treated with DMSO (vehicle), MTX-216, MTX-211, trametinib, the combination of MTX-216 and trametinib, or pictilisib

Project description:In this study, we identified a multi-kinase inhibitor MTX-216 to be efficacious in blocking NF1 loss-of-function melanoma cells. To identify the mechansisms of action of MTX-216, we treated NF1 loss-of-function melanoma cell lines with MTX-216, MTX-211 (the structural analogue of MTX-216 that has no effect on melanoma cells) as well as commericial kinase inhibitors, trametinib and pictilisib, and compared their gene expression profiles.

2022-09-20 | GSE213588 | GEO

Enterobacter hormaechei strain:CM18-216 | isolate:CM18-216

Project description:Enterobacter hormaechei strain:CM18-216 | isolate:CM18-216 Genome sequencing

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Analysis of MTX-3937-treated human peripheral NK cells

Project description:Siglec-9 has been of particular interest for their potential as immune checkpoints. Here, we employed docking-based virtual screening combined with bio-layer interferometry assays to identify a potential Siglec-9 inhibitor, MTX-3937. Analysis showed that MTX-3937-treatment significantly enhanced the production of IFN-γ, TNF-α, perforin and CD107a in human NK cells. Consistently, MTX-3937 largely promoted NK cells tumor killing activities both in vitro and in vivo. In mechanism, MTX-3937 inhibited the phosphorylation level of SHP-1/2 in NK92 cells.

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Sinorhizobium meliloti strain:216

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Transcription profiling of human NF1 heterozygous (NF1+/-) melanocytes from a Neurofibromatosis type 1 patient and NF1 wild type (NF1+/+) melanocytes of a healthy control patient

Project description:One of the major primary features of the neurocutaneous genetic disorder Neurofibromatosis type 1 are the hyperpigmentary café-au-lait macules where dysregulation of melanocyte development, proliferation and differentiation is considered to play a key etiopathogenic role. To gain better insight in the possible role of the tumor suppressor gene NF1, a transcriptomic microarray analysis was performed on human NF1 heterozygous (NF1+/-) melanocytes of a Neurofibromatosis type 1 patient and NF1 wild type (NF1+/+) melanocytes of a healthy control patient, both cultured from normally pigmented and hyperpigmented lesional café-au-lait skin. Out of 13,850 unique genes, a total of 137 had a significant twofold or more up- (72) or down-regulated (65) expression in NF1+/- melanocytes compared to NF1+/+ melanocytes (genotype effect). Considering possible intrinsic genetic variation in lesional skin, melanocytes showed a total of 51 genes having a significant twofold or more up- (37) or down-regulated (14) expression when they were cultured from hyperpigmentary café-au-lait skin compared to normally pigmented skin (lesional skin type effect). NF1+/- café-au-lait skin melanocytes showed 468 genes with a significant two-fold or more up- (183) or down-regulated (285) expression going beyond the sum of the separate main effects (interaction). Detailed analysis enabled the identification of several modulated genes in NF1+/- (café-au-lait skin) melanocytes, mainly involved in controlling cell proliferation and cell maintenance, in cell adhesion and, surprisingly, in the immune response. An interesting finding was that a high number of transcription factor genes were differentially modulated, among which a specific subset - important in melanocyte-lineage development - showed downregulation in a transcriptional cis-regulatory network governing the activation of the melanocyte-specific dopachrome tautomerase (DCT) gene.

2005-02-05 | E-MEXP-258 | biostudies-arrayexpress

Brucella melitensis strain:I-216

Project description:Brucella melitensis I-216

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Genome-wide gene expression analysis of neurofibroma-derived NF1+/- and NF1-/- Schwann cells

Project description:Analysis of the effect of NF1 second hit mutation to the reading of the whole human genome by comparing the gene expression profiles of neurofibroma derived Schwann cell cultures representing two different NF1 genotypes (NF1+/- and NF1-/-).

2016-12-22 | GSE32029 | GEO

Expression data of three sets of cells: (1) Schwann cells and macrophages from 1m-old WT DRG, (2) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 1m-old neurofibroma, (3) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 7m-old neurofibroma

Project description:Schwann cells and macrophages were dissociated from normal DRGs and 1- and 7-month-old neurofibroma. Schwann cells from neurofibroma have Nf1-/- phenotypes. All macrophages have Nf1+/+ phenotypes. We used microarrays (Affymetrix MoGene 2.0 ST GeneChip) to detect transcriptomal changes between 7-month-old neurofibroma Schwann cells (or macrophages) versus 1-month-old wild-type (or neurofibroma) Schwann cells (or macrophages). Expression data of three sets of cells: (1)Schwann cells and macrophages from 1-month-old wild-type mouse dorsal root ganglia, (2) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 1-month-old neurofibroma, (3) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 7-month-old neurofibroma We chopped mouse DRG/neurofibromas into 1-3 mm^3 pieces and plated them in dissociation medium containing 20mL L-15 (Mediatech), 0.5 mg/mL collagenase type 1 (Worthington; Lakewood, NJ), and 2.5 mg/mL dispase protease type II (Cambrex; East Rutherford, NJ) at 37Â°C for 4-6 hours with shaking. The dissociation reaction was stopped by adding DMEM +10%FBS. Undigested DRG/tumors were excluded by 100ÂµM cell strainer. Cells were collected by centrifugation. For each microarrays (Schwann cell, macrophage), Affymetrix GeneChip Command Console (v4.0.0) was used to create .chp files. All the probe sets on Affymetrix Mouse Gene 2.0 ST array (Mogene-2_0-st-v1.na33.2.mm10) were summarized by Affymetix Expression Console program using robust multi-chip average (RMA) method . After preprocessing steps, data from two batches were combined and their batch effects were corrected using ComBat method Please note that [1] all MP samples are Nf1+/+ (no mutation on Nf1 gene) and the only difference is their ages (1month, 7month) and [2] the 'nf1' in sample title reperesents "neurofibroma type1 disease", not "Nf1 gene".

2017-05-01 | E-GEOD-78901 | biostudies-arrayexpress

NF1 microdeletions characterization by custom high-resolution array CGH

Project description:To allow accute charaterization of NF1 locus constitutional microdeletion in 70 NF1 patients, a custom array CGH was developped. Goal was to obtain genomic rearrangements fine characterization in order to perform genotype-phenotype correlation in NF1 microdeleted patients. To serve as a reference group in our genotype-phenotype correlation study in NF1 microdeletion patients, non-deleted NF1 patients (i.e. patients with an intragenic NF1 mutation) were also selected from our database. A total of 389 NF1 patients were included in the reference group of non-deleted patients. Multiple logistic regression was performed to test the association of each clinical feature individually with the type of constitutional NF1 mutation (intragenic mutation vs. microdeletion). The phenotypic traits of the 389 reference patients are available in the "GSE19730_control_patient_characteristics.txt" supplementary file on the Series record. NF1 locus microdeletions characterization vs reference sample (pool of six normal control DNAs)

2010-05-26 | E-GEOD-19730 | biostudies-arrayexpress

Microarray Analysis of Differentially Expressed Genes in human bronchial cells(BEAS-2B) treated MTX

Project description:Methotrexate (MTX) has been widely used for the treatment of a variety of tumors as well as for inflammatory diseases and rheumatoid arthritis (RA). MTX-induced toxicity has been a serious unpredictable side effect of the treatment and an important clinical problem. Possible causes include allergic, cytotoxic or immunologic reactions to this agent. We examined the consequences of the mechanism of MTX-induced pulmonary toxicity gene expression in BEAS-2B cells, huma bronchial cell line, by microarray. The expression of these genes are potential biomarker of methotrexate-induced pulmonary toxicity. Also, We provide a clue about mechanism of pulmonary toxic action by these clinical chemotherapeutic agents. Keywords: 48h treatment, 0.144uM (dose), MTX

2008-12-06 | GSE9815 | GEO

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