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High-throughout sequencing of triple negative breast cancer cells treated actived compound D16

ABSTRACT: The high-throughput sequencing technology was performed after the treatment of human triple negative breast cancer cells MDA-MB-231 with the active compound D16 designed and synthesized by ourselves, to explore the expression of genes related to cell proliferation, adhesion, migration and invasion of human triple negative breast cancer cells MDA-MB-231 after the treatment of the active compound Changes to explore the effect of active compounds on the proliferation and motility of triple breast breast cancer cells and to find an interesting target gene, CKAP2.

ORGANISM(S): Homo sapiens

PROVIDER: GSE182063 | GEO | 2021/08/17

REPOSITORIES: GEO

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Project description:Background Breast cancer is the leading cause of cancer related deaths in women. Triple negative breast cancers are highly aggressive, have an overall poor prognosis and has limited therapeutic options. Previously, we have identified an environmental induced gene mdig that predicted the overall survival in breast cancer patients and regulated breast cancer cell growth, motility and invasion partially through DNA and histone methylation. Mdig’s role in breast cancer growth and motility has been revealed however a comprehensive analysis of the proteomic profile of mdig affected cells in triple negative breast cancer has not been attempted yet. Methods We applied mass spectrometry technology featuring global proteomics and post translational modifications in triple negative breast cancer cells MDA-MB-231 that were deleted for mdig via CRISPR Cas 9 gene editing. Using label-free bottom up quantitative proteomics, we compared the proteomes of wildtype control (WT) and mdig knockout (KO) MDA-MB-231 cells and identified the proteins and pathways that are significantly altered with mdig deletion. Ingenuity Pathway Analysis (IPA) platform was further used to explore the signaling pathway networks with differentially expressed proteins and identified top canonical pathways, upstream regulators, and causal disease networks. Results 904 differentially expressed (p < 0.005) proteins were identified in MDA-MB-231 cells knocked out for mdig. Post-translational modification (PTM) analysis indicated that mdig loss reduced the abundance of oxidized histidine 39 of 60S ribosomal protein L27a (q = 0.00030) whereas global abundance of di-methylated lysine containing peptides was increased (p = 0.02). Relevance Our data provides the first insight towards the protein expression pattern in breast cancer associated with a complete disruption of the mdig gene. Differentially expressed proteins between WT and KO MDA-MB-231 triple negative breast cancer cells provided substantial information regarding the key proteins, biological process and pathways that are specifically upregulated in breast cancer tumorigenicity and invasiveness. Mdig affected signaling pathways and hub molecules will benefit for the development of novel treatment strategies for the development of breast cancer therapies.

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High-throughout sequencing of triple negative breast cancer cells treated actived compound D16

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