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Series GSE142171 Query DataSets for GSE142171
Status Public on Dec 18, 2019
Title RNA Sequencing Analysis of Gene Expression Profiles in Control versus CIC Knockdown T47D Mammospheres
Organism Homo sapiens
Experiment type Expression profiling by high throughput sequencing
Summary Purpose: The goals of this study is to compare and examine the transcriptional profile in the secondary mammospheres of control versus CIC-deficient T47D cells by mRNA sequencing and to understand the molecular basis of the CIC regulation of CSC-like properties in luminal type of breast cancer cells.
Methods: DNA library for mRNA sequencing of secondary mammospheres derived from control and CIC-deficient T47D breast cancer cells was prepared using a TruSeq Stranded Total RNA LT Sample Prep Kit (Gold) and their libraries sequenced on the NovaSeq sequencer accompanying the NovaSeq 6000 S4 Reagent Kit. The trimmed reads that passed quality filters were mapped to reference genome with HISAT2, followed by assembly of transcript with StringTie.
Results: A total of 20377 genes were differentially expressed (10438 upregulated and 9939 downregulated) in the CIC-deficient T47D mammospheres when compared with control mammospheres. Approximately 5% of the transcripts showed differential expression between the control and CIC-deficient secondary mammospheres, with a fold change ≥1.2 and p value <0.05. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) analyses revealed that CIC-deficient mammospheres differentially expressed genes that are involved in processes associated with cancer progression such as cell cycle, cell proliferation, cell growth, and apoptotic process, as well as autoimmunity.
Conclusions: Our results show the first comparative analysis of secondary mammospheres derived from control and CIC-deficient T47D breast cancer cells. The data reported here should also provide reference for expression profiles of CSC-like cells in ER+/PR+/HER2- luminal breast cancer cells. We conclude that CIC deficiency promotes CSC-like properties and thus breast cancer progression through controlling CSC-related pathways including focal adhesion and extracellular matrix (ECM)-receptor interactions, and may also regulate cell cycle, cell proliferation, and apoptosis.
Overall design Secondary mammosphere mRNA profiles of control and CIC knockdown T47D breast cancer cells were generated by deep sequencing, in duplicate.
Contributor(s) Lee Y, Yoe J
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Submission date Dec 17, 2019
Last update date Dec 19, 2019
Contact name Jeehyun Yoe
Phone 01037385255
Organization name POSTECH
Department Life Science
Lab Cancer Immunology Lab
Street address 77 Cheongam-Ro. Nam-Gu
City Pohang
State/province Gyungbuk
ZIP/Postal code 37673
Country South Korea
Platforms (1)
GPL24676 Illumina NovaSeq 6000 (Homo sapiens)
Samples (2)
GSM4221944 Control_RNASeq (T47D)
GSM4221945 CIC KD_RNASeq (T47D)
BioProject PRJNA596189
SRA SRP237916

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Supplementary file Size Download File type/resource
GSE142171_Expression_Profile.GRCh38.gene.txt.gz 2.4 Mb (ftp)(http) TXT
GSE142171_Expression_Profile.GRCh38.transcript.txt.gz 5.7 Mb (ftp)(http) TXT
GSE142171_Expression_Profile_with_Novel.GRCh38.gene.txt.gz 2.5 Mb (ftp)(http) TXT
GSE142171_Expression_Profile_with_Novel.GRCh38.transcript.txt.gz 6.1 Mb (ftp)(http) TXT
GSE142171_Novel_splicing_variant_list.txt.gz 647.8 Kb (ftp)(http) TXT
GSE142171_Novel_transcript_list.txt.gz 38.0 Kb (ftp)(http) TXT
GSE142171_data2.xlsx 7.4 Mb (ftp)(http) XLSX
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