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RNAseq transcriptomic data of the human mammary cell line MCF10A expressing a shRNA against MME (CD10) or a control shRNA

ABSTRACT: The immortalized but not transformed human mammary epithelial stem-like cell line MCF10A was stably transfected with a lentiviral vector expressin a shRNA targeting the MME transcript, coding for the CD10 membrane endopeptidase. This study aims to identify genes regulated by the CD10 modulation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE186735 | GEO | 2023/09/01

REPOSITORIES: GEO

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RNAseq transcriptomic data of the human mammary cell line MCF10A expressing a shRNA against MME (CD10) or a control shRNA

Project description:RNAseq transcriptomic data of the human mammary cell line MCF10A expressing a shRNA against MME (CD10) or a control shRNA

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Expression data from a model of human mammary stem cells at different stages of transformation, sorted or not on the basis of their CD10 expression

Project description:This study was designed to follow the transcriptome changes during BMP2 mediated transformation of the MCF10A human mammary stem cell model. We found that long-term BMP2/IL6 exposure of MCF10A cells, human immortalized but non-transformed mammary stem cells and progenitors, led to their luminal transformation. MC26 cells correspond to MCF10A cells transformed by BMP2/IL6 long-term exposure and contrarily to their parental cells, are able to engraft in immunodeficient mice and form colonies in soft-agar. M1B26 cells were obtained after BMP2/IL-6 long-term treatment of MCF10A cells sorted for high BMPR1B expression and subsequent isolation and expansion of 3 soft-agar colonies. M1B26 have an increased ability to engraft in mice and form colonies in soft-agar when compared to MC26 cells. As a non-transformed control, MCF10A-CT cells were kept in culture without BMP2/IL6 for the same length of time than MC26 cells. MCF10A-CT, MC26 and M1B26 cells are thus a model allowing to follow the molecular events associated with the initiation of a luminal transformation in mammary stem cells. Expression of the CD10 membrane endopeptidase has been associated with cancer although it can be a marker of both good or poor prognosis depending on the stage of the cancer and on the tissue of origin. In addition, we showed that CD10 was a marker of stem cell containing populations in healthy mammary tissue and that CD10 enzymatic activity was involved in the maintenance of cells immature properties. Having recently shown that CD10 expression was increasing during BMP2 mediated transformation and that CD10 expressing cells were more transformed but that CD10 was not required for transformation, we set out to determine the gene signature associated with CD10 expression.

2023-09-01 | GSE123053 | GEO

CD10 expression in human adventitial cells

Project description:The tunica adventitia ensheaths arteries and veins and contains presumptive mesenchymal stem cells (MSCs) involved in vascular remodeling. We show here that a subset of human adventitial cells expresses the CD10/CALLA cell surface metalloprotease. Sorted CD10+ adventitial cells developed promptly in culture into MSCs, exhibiting higher proliferation, clonogenic and osteogenic potentials than CD10- counterparts. CD10+ adventitial cells increased expression of the cell cycle protein CCND2 via ERK1/2 and prompted NELL1 expression via NF-κB. CD10 expression was upregulated in CD10+ adventitial cells through neural secreted protein sonic hedgehog-mediated Gli1 signaling. These results suggest that CD10 expression, which marks rapidly dividing cells in other normal and malignant cell lineages, plays a role in MSC homeostasis in human tissues.

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Gene Expression of MCF10A cells expresing ERAS

Project description:ERAS (Embryonic stem (ES) cell-expressed Ras) is a constitutively active member of the Ras family that is not expressed in adult tissues, and has been involved in breast cancer. ERAS was introduced in breast MCF10A cells using a lentiviral vector under the control of the beta actin promoter

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Expression data from MCF10A cells subject to EGF stimulation

Project description:MCF10A cells derived from spontaneously immortalized normal human mammary epithel were subjected to EGF/SERUM stimulation for 0,20,40,60,120,240 and 480 minutes. We used microarrays to understand the temporal regulation of the cellular EGFR cascade. Keywords: time course

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Control shRNA- vs. obscurin shRNA-expressing MCF10A cells

Project description:Obscurins (~70-870kDa), encoded by the single OBSCN gene, are cytoskeletal proteins originally identified in striated muscles with structural and regulatory roles. Recently, analysis of 13,023 genes in breast and colorectal cancers identified OBSCN as one of the most frequently mutated genes, implicating it in cancer formation. Herein, we studied the expression profile of obscurins in breast, colon and skin cancer cell lines, and their involvement in cell survival. Immunoblot analysis demonstrated significant reduction of obscurins in cancer cells, resulting from decreased mRNA levels and/or the presence of mutant transcripts. In normal epithelium, obscurins localize in cytoplasmic puncta, the cell membrane and the nucleus. Accordingly, subcellular fractionation demonstrated the presence of two novel nuclear isoforms of ~110 and ~120kDa. Non-tumorigenic MCF10A breast epithelial cells stably transduced with shRNAs targeting giant obscurins exhibited increased viability (~30%) and reduced apoptosis (~20%) following exposure to the DNA damaging agent, etoposide. cDNA microarrays followed by Gene Ontology profiling indicated a substantial number of transcripts related to apoptosis and survival are differentially regulated upon obscurin knock-down. Quantitative RT-PCR further indicated that the anti-apoptotic genes BAG-4 and HAX-1 were up-regulated (1.5 and 1.4 fold, respectively), whereas initiator caspase-9 and death caspase-3 transcripts were down-regulated (0.8 and 0.6 fold, respectively). Our findings are the first to pinpoint critical roles for obscurins in cancer development by contributing to the regulation of cell survival. Two-condition experiment: control shRNA- vs. obscurin shRNA-expressing MCF10A cells exposed to 150 uM etoposide. 3 independent replicates per condition.

2012-02-02 | E-GEOD-35494 | biostudies-arrayexpress

Analysis of gene expression profiles of human melanoma A375 cells with or without CD10 overexpression

Project description:Analysis of effect of CD10 in melanoma at gene expression level. The hypothesis tested in the present study was that CD10 promotes melanoma tumor progression. Results provide important information of the significant gene expression change between CD10-transfected and mock-transfected A375 cells, such as significantly increased genes included those related to anti-apoptosis, angiogenesis and cell proliferation.

2014-10-18 | GSE62464 | GEO

Characterization and clinical evaluation of CD10+ stroma cells in the breast cancer microenvironment

Project description:Purpose: There is growing evidence that interaction between stromal and tumor cells is pivotal in breast cancer progression and response to therapy. Since the pioneer work of Allinen et al. suggested that during breast cancer progression striking changes occur in CD10+ stromal cells, we aimed to better characterize this cell population and its clinical relevance. Results: This 12-gene CD10+ stroma signature includes among others genes involved in matrix remodeling (MMP11, MMP13, COL10A1) and genes related to osteoblast differentiation (periostin). The co-culture experiments demonstrated all three CD10+ cell types contribute to the CD10+ stroma signature. Of interest, this signature demonstrated an important role in differentiating in situ from invasive breast cancer, in prognosis of the HER2+ subpopulation of breast cancer only, and potentially in non-response to chemotherapy for those patients. Conclusions: Our results highlight the importance of CD10+ cells in breast cancer prognosis and efficacy of chemotherapy, particularly within the HER2+ breast cancer disease.

2012-03-15 | GSE27120 | GEO

CD10 expression in human adventitial cells

Project description:CD10 expression in human adventitial cells

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Membrane Metallo-Endopeptidase (Neprilysin) Regulates Inflammatory Response and Insulin Signaling in White Preadipocytes

Project description:Accumulation of visceral white adipose tissue (WAT) associates with insulin resistance, adipose tissue inflammation, and metabolic syndrome, whereas accumulation of subcutaneous WAT may be protective. We aimed to identify molecular mechanisms that might provide mechanistic insights underlying the phenotypic differences in these tissues. Membrane Metallo-Endopeptidase (MME/Neprislyin) is an extracellular, membrane-bound protease enriched in subcutaneous WAT that can target degradation of a variety of peptides, including insulin, IL6, and β-amyloids. We hypothesized that MME contributes to adipose depot-specific metabolic properties.

2019-02-25 | GSE117353 | GEO

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