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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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			Action	DRS
	SRR21616400_1.fastq.gz	Fastqsanger.gz
	SRR21616400_2.fastq.gz	Fastqsanger.gz
	SRR21616401_1.fastq.gz	Fastqsanger.gz
	SRR21616401_2.fastq.gz	Fastqsanger.gz
	SRR21616402_1.fastq.gz	Fastqsanger.gz

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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

Dual inhibition of SHP2 and autophagy suppresses NF1-associated malignant peripheral nerve sheath tumors

Project description:Malignant peripheral nerve sheath tumors (MPNSTs) are the leading cause of premature death for patients with Neurofibromatosis type 1 and no approved targeted therapies are available. Benign plexiform neurofibromas have been successfully treated with selumetinib, a MEK inhibitor, but after progression to MPNST, MEK inhibition alone is not effective. Frequently, adaptive responses to single agent targeted inhibitors invokes alterations in receptor tyrosine kinase expression and feedback regulation that leads to inhibitor bypass. Here, the effects of SHP099, an inhibitor of the protein-tyrosine phosphatase SHP2 (encoded by the PTPN11 gene) was tested alone and in combination with trametinib (MEKi) in an orthotopic implantation murine model of NF1 MPNST with defined genotype (NP, Nf1-/-;Trp53-/-). Kinase enrichment proteomic analysis was performed using tumor tissue from vehicle, SHP099, trametinib, or trametinib and SHP099 in combination for 5 or 21 days to evaluate the effects on the functional kinome.

2024-11-20 | PXD035999 | Pride

Dual inhibition of SHP2 and autophagy suppresses NF1-associated malignant peripheral nerve sheath tumors

Project description:Malignant peripheral nerve sheath tumors (MPNSTs) are the leading cause of premature death for patients with Neurofibromatosis type 1 and no approved targeted therapies are available. Benign plexiform neurofibromas have been successfully treated with selumetinib, a MEK inhibitor, but after progression to MPNST, MEK inhibition alone is not effective. Frequently, adaptive responses to single agent targeted inhibitors invokes alterations in receptor tyrosine kinase expression and feedback regulation that leads to inhibitor bypass. Here, the effects of SHP099, an inhibitor of the protein-tyrosine phosphatase SHP2 (encoded by the PTPN11 gene) was tested alone and in combination with trametinib (MEKi) in an orthotopic implantation murine model of NF1 MPNST with defined gentotype (NI, Nf1-/-;Ink4a/Arf-/-). Kinase enrichment proteomic analysis was performed using tumor tissue from vehicle, SHP099, or trametinib and SHP099 in combination for 5, 15, or 28 days to evaluate the effects on the functional kinome.

2024-11-20 | PXD035998 | Pride

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

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