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Sample GSM3044988 Query DataSets for GSM3044988
Status Public on Aug 18, 2020
Title Human_436DMSO_UNC_d0_3
Sample type SRA
 
Source name MDA-MB-436
Organism Homo sapiens
Characteristics cell type: TNBC
paclitaxel sensitivity: parental taxol-sensitive treated with paclitaxel 72h
treatment: DMSO 1:1000
replicate: GD_RNA_60 and 46
Treatment protocol Taxol-resistant cells were grown in presence of 20nM of Paclitaxel at all time. Parental cells (MDA-MB-436 and Hs 578T) were grown in DMEM with 1:1000 DMSO at all time.
Growth protocol MDA-MB-436 and HS 578T cells were grown in DMSO supplemented with 10%FBS and Penicilin/Streptomycin (100 U/mL Penicilium and 100 μg/mL. Streptomycin). Taxane-resistant cells were generated upon long-term exposure to increasing concentrations of paclitaxel at a starting concentration 0.05 nM with increments (dose and time adjusted to the growth and survival of adapting cells), until the cytotoxic concentration of 10 to 20 nM was reached with the resistant cells growing at a similar rate than the parental cells (>6 months).
Extracted molecule total RNA
Extraction protocol RNA was extracted using the qiaquick purification kit
RNA samples were quantified by qubit (Life Technologies) and quality by Agilent Bioananlyzer. Two hundred nanograms Total RNA from 42 samples were library prepared using TruSeq Stranded Total RNA kit (Illumina). RNA samples were ribosomal RNA depleted using Ribo-zero Gold rRNA beads, following purification the RNA was fragmented. The cleaved RNA fragments were copied into first strand cDNA using reverse transcriptase and random primers. This is followed by second strand cDNA synthesis using RNase H and DNA Polymerase I. A single “A” based were added and adapter ligated followed by purification and enrichment with PCR to create cDNA libraries.
Final cDNA libraries were size validated using Agilent Bioanalyzer and concentration validated by qPCR (Kapa Biosystems/Roche). All libraries were normalized to 10nM and pooled together, denatured with 0.2N NaOH and diluted to a final concentration of 1.4pM. 1.3ml of 1.4pM pooled libraries were loaded onto an Illumina NextSeq cartridge for cluster generation and sequencing on an Illumina Nextseq500 instrument (Illumina) using Paired-end 75bp protocol to achieve ~ 40 million reads per sample
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NextSeq 500
 
Data processing Reads were aligned to hg19 using tophat (2.0.8) with default parameters
Transcripts were merged using cufflinks (2.1.1) and differential expression computed for all relevant contrasts with default parameters
Genome_build: hg19
Supplementary_files_format_and_content: mean FPKM value for all identified transcripts
 
Submission date Mar 15, 2018
Last update date Aug 18, 2020
Contact name Alexander James Murison
E-mail(s) [email protected]
Organization name University Health Network
Lab Dick Lab
Street address 101 College Street, TMDT room 11-706
City Toronto
State/province Ontario
ZIP/Postal code M5G 1L7
Country Canada
 
Platform ID GPL18573
Series (2)
GSE111920 Metabolic adaptations underlie epigenetic vulnerabilities in chemoresistant breast cancer. [RNA-Seq1]
GSE113687 Metabolic adaptations underlie epigenetic vulnerabilities in chemoresistant breast cancer
Relations
BioSample SAMN08720351
SRA SRX3800606

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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