NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM2498250 Query DataSets for GSM2498250
Status Public on Jul 01, 2017
Title SW1990 positive rep3
Sample type SRA
 
Source name pancreatic adenocarcinoma cells
Organism Homo sapiens
Characteristics cell type: pancreatic adenocarcinoma
cell line: SW1990
gctm5: positive
Treatment protocol All cells were trypsinized and resuspended in GCTM-5 IgG1 antibody supernatant (primary antibody). The cells were incubated for 1 hour at 4°C, then washed thrice with FACS buffer (0.1% BSA, 2 mM EDTA in PBS) and subsequently incubated with the secondary antibody (goat anti-mouse HRP) for 30 minutes. Cells were washed thrice and resuspended at 2.E6 cells/ml for sorting. Flow cytometry was performed using BD FACSAria™ Fusion flow cytometer (BD Biosciences) and data was analysed by BD FACSDiva software provided with the system. The gates were chosen to include only highly positive and negative cell populations and the sorted cells were then used for RNA extraction.
Growth protocol CFPAC-1 and SW-1990 cells were grown as monolayer cultures in Iscove’s Modified Dulbecco’s Medium supplemented with 10% fetal bovine serum and 2 mM L-glutamine. Cells were passaged every 3-4 days upon reaching 70-80% confluence, using TrypLE (Gibco) for dissociation, and were subcultured in a split ratio of 1:5.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using the RNeasy® Mini Kit (Qiagen, 74104), and purified with DNase I (Qiagen, 79254). RNA was then quantified using the NanoDrop2000 spectrophotometer (Thermo Scientific). 1μg quantified total RNA was taken and enriched for PolyA using Oligo(dT) Microparticles.
Transcriptome library for sequencing was constructed according to SureSelect Strand-Specific RNA Library Prep Kit protocol outlined in “SureSelect Strand-Specific RNA Library Prep for Illumina Multiplexed Sequencing” (Cat #5500-0135). Briefly, the mRNA was fragmented for 2 minutes at elevated temperature (94oC) in the presence of divalent cations and first strand cDNA was synthesized. The single stranded cDNA was cleaned up using HighPrep (Magbio, Cat #AC-60050). Strand Specificity is maintained by the addition of Actinomycin D at this step. Second strand cDNA was synthesized and end repaired using Second Strand Synthesis + End Repair mix. The cDNA was cleaned up using HighPrep (Magbio, Cat #AC-60050). Adapters were ligated to the cDNA molecules after addition of “A”- base. HighPrep cleanup was performed post ligation. The library was indexed and enriched for adapter ligated fragments using 10 cycles of PCR. The prepared library was quantified using Qubit and validated for quality by running an aliquot on D1000 Tapes. Finally, the adapter positive fragments were quantified using KAPA qPCR quantification kit (KAPA Biosystems; Cat #KK4824).
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 4000
 
Data processing Base-calling was done using bcl2fastq2 Conversion Software v2.17.
Sequenced reads were trimmed for adaptor sequence, and mapped to hg19/GRCh37 whole genome using QuasR with parameters -m 1 --best --strata -v 2
Reads Per Kilobase of gene per Megabase of library size (RPKM) were calculated using a protocol from Chepelev et al., Nucleic Acids Research, 2009.
Genome_build: hg19/GRCh37
Supplementary_files_format_and_content: tab-delimited text files include RPKM values for each Sample
 
Submission date Feb 22, 2017
Last update date May 15, 2019
Contact name Kouichi Hasegawa
E-mail(s) hasegawa-k@sahs.med.osaka-u.ac.jp
Organization name Osaka University
Department StemRIM Institute of Regeneration-Inducing Medicine
Lab Drug Efficacy Evaluation & Pharmacology Dept. StemRIM
Street address 6F Techno Alliance Bldg. 2-8 Yamadaoka
City Suita
State/province Osaka
ZIP/Postal code 565-0871
Country Japan
 
Platform ID GPL20301
Series (1)
GSE95176 GCTM-5 positive and negative cells in pancreatic adenocarcinoma cell lines
Relations
BioSample SAMN06368686
SRA SRX2581687

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

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap