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Sample GSM6131503 Query DataSets for GSM6131503
Status Public on May 13, 2022
Title s0248_mouse29_HBRX3078_Lung CTRL_1cells
Sample type SRA
 
Source name Metastases
Organism Homo sapiens
Characteristics tissue: Metastases
cell line: PDX1
cell type: cancer cells
Growth protocol MDA-MB-231 and PDX models were implanted in the 4th mammary fat pad (cleared) of 4-8 week-old NSG mice. Primary tumors were resected. Lung metastasis cells were isolated out of the dissected lung at a later time (when mice reached ethical endpoints)
Extracted molecule polyA RNA
Extraction protocol Primary tumors and lung metastases were mechanically and enzymatically digested with a collagenase/hyaluronidase solution (Stem Cell Technologies, 07912). Human cancer cells were recovered by FACS sorting, based CD298 or GFP expression.
Single cell isolation was performed on the Fluidigm C1 platform according to manufacturer protocol. mRNA was isolated with the Takara SMART-Seq Ultra Low RNA kit (Takara Bio; 634833) . Libraries for Illumina sequencing were prepared with the Nextera XT DNA Library Preparation Kit (Illumina; FC-131-1096).
 
Library strategy RNA-Seq
Library source transcriptomic single cell
Library selection cDNA
Instrument model Illumina HiSeq 2500
 
Description Fluidigm C1 platform
well2965
Data processing Reads were aligned to human genom with STAR. Following observation under the microscope, wells containing more than 1 cell or debris were marked and removed from further analyses.
Following observation under the microscope, wells containing more than 1 cell or debris were marked and removed from further analyses.
Cell cycle of individual cells were inferred using sets of known cell cycle-regulated genes known to peak in transcription at given cell cycle stages obtained from (PMID: 12058064, PMID:11416145)
The cell cycle and library complexity (percentage of detected genes) were modeled as covariates and regressed out of the log-normalized counts using glm.fit (R package glm).
Differential gene expression between single cell clusters was performed using pairwise t-test implemented in FindMarkers function from R package scran.
Gene set enrichment was performed with bioconductor packages fgsea and msigdb
Assembly: hg38
Supplementary files format and content: counts_raw.csv is a matrix containing raw counts after alignment. counts_afterQC are counts for the cells passing QC. Cccorected_logcounts.csv contains logcounts of the cells that passed QC after the cell-cycle correction. metadata.csv contains addition information on the column names of counts_raw.csv and CCcorected_logcounts.csv.
 
Submission date May 10, 2022
Last update date May 13, 2022
Contact name Mohamed Bentires-Alj
E-mail(s) bentireslab.data@gmail.com
Organization name University Hospital Basel
Department DBM
Lab THMR
Street address Hebelstrasse 20
City Basel
ZIP/Postal code 4031
Country Switzerland
 
Platform ID GPL16791
Series (1)
GSE202695 Single-cell analysis reveals inter- and intra-tumor heterogeneity in metastatic breast cancer
Relations
BioSample SAMN28183999
SRA SRX15230710

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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