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Gene expression of SUM159 breast cancer cell line expressing microRNA--203

ABSTRACT: Determine the effect of miR-203 expression on the global mRNA expression in mesenchymal breast cancer cell line. Generate control (pBabe puro) and miR-203 (pBabe puro miR-203) cells using retroviral transduction and puromycin selections. Extract total RNA using Trizol.

ORGANISM(S): Homo sapiens

SUBMITTER: Taube JH

PROVIDER: S-ECPF-GEOD-50697 | biostudies-other | 2013

REPOSITORIES: biostudies-other

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Gene expression of SUM159 breast cancer cell line expressing microRNA--203

Project description:Determine the effect of miR-203 expression on the global mRNA expression in mesenchymal breast cancer cell line.

2013-09-23 | GSE50697 | GEO

Gene expression of SUM159 breast cancer cell line expressing microRNA--203

Project description:Determine the effect of miR-203 expression on the global mRNA expression in mesenchymal breast cancer cell line. Generate control (pBabe puro) and miR-203 (pBabe puro miR-203) cells using retroviral transduction and puromycin selections. Extract total RNA using Trizol.

2013-09-23 | E-GEOD-50697 | biostudies-arrayexpress

Spinophilin silencing in the breast cancer cell line SUM159

Project description:Microarray profiling was used to determine the most abundantly expressed genes in spinophilin-silenced breast cancer cells compared to control cells in the cell line SUM159. We identified several differentially expressed genes in spinophilin-silenced cells. A total number of six samples were analyzed, each in three replicates. There are three SUM159 Control samples and three samples of the cell line SUM159 with silenced spinophilin.

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Genes regulated by miR-203 in breast cancer cell line MDA-MB-231

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miR-203 drives breast cancer cell differentiation.

Project description:A hallmark of many malignant tumors is dedifferentiated (immature) cells bearing slight or no resemblance to the normal cells from which the cancer originated. Tumor dedifferentiated cells exhibit a higher capacity to survive to chemo and radiotherapies and have the ability to incite tumor relapse. Inducing cancer cell differentiation would abolish their self-renewal and invasive capacity and could be combined with the current standard of care, especially in poorly differentiated and aggressive tumors (with worst prognosis). However, differentiation therapy is still in its early stages and the intrinsic complexity of solid tumor heterogeneity demands innovative approaches in order to be efficiently translated into the clinic. We demonstrate here that microRNA 203, a potent driver of differentiation in pluripotent stem cells (ESCs and iPSCs), promotes the differentiation of mammary gland tumor cells. Combining mouse in vivo approaches and both mouse and human-derived tridimensional organoid cultures, we report that miR-203 influences the self-renewal capacity, plasticity and differentiation potential of breast cancer cells and prevents tumor cell growth in vivo. Our work sheds light on differentiation-based antitumor therapies and offers miR-203 as a promising tool for directly confronting the tumor-maintaining and regeneration capability of cancer cells.

| S-EPMC10401798 | biostudies-literature

Spinophilin silencing in the breast cancer cell line SUM159

2014-10-01 | GSE61889 | GEO

Spinophilin silencing in the breast cancer cell line SUM159

2014-10-01 | E-GEOD-61889 | biostudies-arrayexpress

Expression analysis of colorectal cancer cell line SW480 expressing FOXC2

Project description:Investigation of whole genome gene expression level changes in a colorectal cancer cell line SW480 expressing FOXC2, compared to the pBabe control cells. Genes associated with metastasis regulated by FOXC2 in colorectal cancer were analysed. The role of FOXC2 in breast cancer metastasis are further described in Mani SA, Yang J et al. Mesenchyme Forkhead 1 (FOXC2) plays a key role in metastasis and is associated with aggressive basal-like breast cancers. PNAS 2007; 104: 10069-10074 . A six chip study using total RNA recovered from three separate cultures of SW480/pBabe and three separate cultures of SW480/FOXC2. Each chip measures the expression level of 45033 genes from SW480/pBabe or SW480/FOXC2.

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Transcription profile of a human breast cancer cell line expressing MMTV-like sequences.

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Androgen receptor regulates SRC expression through microRNA-203.

Project description:The SRC kinase has pivotal roles in multiple developmental processes and in tumor progression. An inverse relationship has been observed between androgen receptor (AR) activity and SRC signaling in advanced prostate cancer (PCa); however, the modulation of AR/SRC crosstalk that leads to metastatic PCa is unclear. Here, we showed that patients with high SRC levels displayed correspondingly low canonical AR gene signatures. Our results demonstrated that activated AR induced miR-203 and reduced SRC levels in PCa model systems. miR-203 directly binds to the 3' UTR of SRC and regulates the stability of SRC mRNA upon AR activation. Moreover, we found that progressive PCa cell migration and growth were associated with a decrease in AR-regulated miR-203 and an increase in SRC. Relationships among AR, miR-203, and SRC were also confirmed in clinical datasets and specimens. We suggest that the induction of SRC results in increased PCa metastasis that is linked to the dysregulation of the AR signaling pathway through the inactivation of miR-203.

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