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Sample GSM8346765 Query DataSets for GSM8346765
Status Public on Aug 15, 2024
Title ALDH low LNCaP cells, No2_3
Sample type SRA
 
Source name LNCaP cells
Organism Homo sapiens
Characteristics cell line: LNCaP cells
cell type: prostate cancer cells
group: ALDH low
Treatment protocol N/A
Growth protocol LNCaP ALDH high and ALDH low cells were cultured in RPMI-1640 supplied with 10% FBS.
Extracted molecule total RNA
Extraction protocol Unique gene hit counts were calculated by using featureCounts from the Subread package v.1.5.2. The hit counts were summarized and reported using the gene_id feature in the annotation file. Only unique reads that fell within exon regions were counted. If a strand-specific library preparation was performed, the reads were strand-specifically counted.
mRNA sequencing via polyA selection
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NovaSeq X
 
Description LNALNegNo3
Data processing Sequence reads were trimmed to remove possible adapter sequences and nucleotides with poor quality using Trimmomatic v.0.36. The trimmed reads were mapped to the Homo sapiens GRCh38 with ERCC genes reference genome available on ENSEMBL using the STAR aligner v.2.5.2b. The STAR aligner is a splice aligner that detects splice junctions and incorporates them to help align the entire read sequences. BAM files were generated as a result of this step. Below are the statistics of mapping the reads to the reference genome.
After extraction of gene hit counts, the gene hit counts table was used for downstream differential expression analysis. Using DESeq2, a comparison of gene expression between the customer-defined groups of samples was performed. The Wald test was used to generate p-values and log2 fold changes. Genes with an adjusted p-value < 0.05 and absolute log2 fold change > 1 were called as differentially expressed genes for each comparison. Below are the results of the number of significantly differentially expressed genes for all comparisons provided.
Assembly: Unique gene hit counts were calculated by using featureCounts from the Subread package v.1.5.2.
Supplementary files format and content: csv
 
Submission date Jun 24, 2024
Last update date Aug 15, 2024
Contact name Che-Chia Hsu
E-mail(s) che-chia.hsu@duke.edu
Phone 9196682177
Organization name Duke University
Department Pathology
Street address 210 Research Drive, GSRB2, Rm#4014
City Durham
State/province NC
ZIP/Postal code 27710
Country USA
 
Platform ID GPL34281
Series (1)
GSE270565 Characterization of gene profile between ALDH high LNCaP cells and ALDH low LNCaP cells
Relations
BioSample SAMN42048717
SRA SRX25059298

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA

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