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A375 BRAF/MEK/Dual exome seq

ABSTRACT: This study contains 4 exomes of A375, parental, BRAF resistant population, MEK resistant population and a BRAF/MEK resistant population

PROVIDER: PRJEB34013 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR3490723.fastq.gz	Fastqsanger.gz
	ERR3490723_1.fastq.gz	Fastqsanger.gz
	ERR3490723_2.fastq.gz	Fastqsanger.gz
	ERR3490724.fastq.gz	Fastqsanger.gz
	ERR3490724_1.fastq.gz	Fastqsanger.gz

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Analysis of A375 and A375 clones that acquired resistance to GSK2118436 after treatment with GSK2118436 (GSK436), GSK1120212 (GSK212), or the combination of GSK2118436 and GSK1120212 for 24 hour

Project description:In an effort to understand the mechanisms of acquired resistance to BRAF inhibitors, we isolated clones that acquired resistance to the BRAF inhibitor GSK2118436 derived from the A375 BRAF V600E mutant melanoma cell line. This resistance clones acquired mutations in NRAS and MEK1. One clones, 16R6-4, acquired two mutations in NRAS – Q61K and A146T. Proliferation and western blot analyses demonstrated that these clones were insensitive to single agent GSK2118436 or GSK1120212 (an allosteric MEK inhibitor) but were sensitive to the combination of GSK2118436 and GSK1120212. To further characterize this combination, global transcriptomic analysis was performed in A375 and 16R6-4 after 24 hour treatment with GSK2118436, GSK1120212 or the combination of GSK2118436 and GSK1120212. This data set was published in Molecular Cancer Therapeutics with the title “Combined inhibition of BRAF and MEK, BRAF and PI3K/mTOR, or MEK and PI3K/mTOR overcomes acquired resistance to the BRAF inhibitor GSK2118436, mediated by NRAS or MEK mutations” by Greger, J.G., et.al. A375 and 16R6-4 (an A375 derived GSK2118436 resistance clone) were treated for 24 hours with 0.1 micromolar GSK2118436, 1 micromolar GSK2118436, 0.01 micromolar GSK1120212, 0.1 micromolar GSK2118436 + 0.01 micromolar GSK1120212, or 1 micromolar GSK2118436 + 0.01 micromolar GSK1120212.

2012-02-01 | E-GEOD-35230 | biostudies-arrayexpress

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Analysis of A375 and A375 clones that acquired resistance to GSK2118436 after treatment with GSK2118436 (GSK436), GSK1120212 (GSK212), or the combination of GSK2118436 and GSK1120212 for 24 hour

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Gene expression of the A375 melanoma cell line treated with RAF inhibitors Vemurafenib and time-course with EGF stimulation during Vemurafenib RAF inhibitor treatment alone or with the MEK inhibitor Cobimetinib

Project description:We treated for 24 hours the BRAF-V600E melanoma cell line A375 with 7 doses of the RAF inhibitor Vemurafenib and, in a second experimental desing, we treated for 24 hours the BRAF-V600E melanoma cell line A375 with Vemurafenib (1 uM) alone or in combination with the MEK inhibitor Cobimetinib (1 uM) and subsequently stimulated with EGF in a time-course of 7 time points for up to 8 hours (0, 0.5, 1, 2, 3, 4, 8 hours).

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Expression data from A375 melanoma parental and persister cells

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Project description:Melanoma cell lines were assessed for differences in gene expression patterns between the lines sensitive and resistant to BRAF and MEK inhibitor drugs. 22 BRAF-mutant melanoma cell lines were assessed for response to BRAF and MEK inhibitors in a 3 day drug treatment dose response assay. Based on the IC50, 18 lines were found to be responsive to BRAF or MEK inhibition and 4 were resistant. Normalised gene expression data generated from experimental replicate affymetrix arrays was assessed to identify differential patterns of inherent gene expression between the cell lines grouped as drug-responsive or drug-resistant. This were used to idenify specific candidate genes and pathways associated with inherent BRAF/MEK inhibitor drug resistance in melanoma cells.

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Expression data from BRAFV600E A375 melanoma cells treated with vehicle or vemurafenib

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Expression data from BRAFV600E A375 melanoma cells treated with vehicle or vemurafenib

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