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MicroRNAs differentially expressed in MUC1 overexpressing cells

ABSTRACT: To determine if overexpression of MUC1 alters the microRNA profile of pancreatic cancer cells S2.013. Comparison of miRNAs differentially regulated in pancreatic cancer cell line S2.013 with and without MUC1 overexpression.

ORGANISM(S): Human gammaherpesvirus 8 Mus musculus Rattus norvegicus JC polyomavirus Betapolyomavirus macacae Homo sapiens Human immunodeficiency virus 1 Murid gammaherpesvirus 4 Human betaherpesvirus 5 Human alphaherpesvirus 1 Betapolyomavirus hominis human gammaherpesvirus 4 Murid betaherpesvirus 1

PROVIDER: GSE48185 | GEO | 2013/08/10

SECONDARY ACCESSION(S): PRJNA209193

REPOSITORIES: GEO

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MicroRNAs differentially expressed in MUC1 overexpressing cells

Project description:To determine if overexpression of MUC1 alters the microRNA profile of pancreatic cancer cells S2.013. Comparison of miRNAs differentially regulated in pancreatic cancer cell line S2.013 with and without MUC1 overexpression. MiRCURY LNA microarray was used to determine differential microRNA expression in one replicate of S2.013.Neo (control) cells compared to S2.013.MUC1 (experimental) cells. Confirmation with qRT-PCR was performed on a subset of microRNAs identified as differentially regulated between the two groups.

2013-08-10 | E-GEOD-48185 | biostudies-arrayexpress

MicroRNAs differentially expressed in MUC1 overexpressing cells

Project description: Not available

| S-ECPF-GEOD-48185 | biostudies-other

MUC1 triggers lineage plasticity of Her2 positive mammary tumor

Project description:The aberrant overexpression of mucin 1 (MUC1) and human epidermal growth factor receptor 2 (HER2) are often observed in breast cancer. However, the role of concomitant of MUC1/HERR2 in the development of breast cancer has not been fully illustrated. Following analysis public microarray datasets that revealed a correlation of double positive of MUC1 and HER2 to a worse clinical outcome, we generated a mouse model overexpressing both Her2 and MUC1 cytoplasmic domain (MUC1-CD) to investigate their interaction in mammary carcinogenesis. Coexpression of Her2 and MUC1-CD confers growth advantage and promotes the development of spontaneous mammary tumors. Genomic analysis uncovers that enforced expression of MUC1-CD and Her2 induces mammary tumor lineage plasticity which is supported by gene reprogramming and mammary stem cell enrichment. With gain- and loss-of function strategies, we show that coexpression of Her2 and MUC1-CD was associated with down-regulation of TCA cycle genes in tumors. Importantly, the reduction of TCA cycle genes induced by MUC1-CD is is significantly connected to the poor prognosis in HER2+ breast cancer patients. In addition, MUC1 augments Her2 signaling pathway by inducing Her2/Egfr dimerization. These findings collectively demonstrate the vital role of MUC1-CD/Her2 collaboration in shaping mammary tumor landscape and highlight the prognostic and therapeutic implication of MUC1 in patients with Her2+ breast cancer.

2022-03-10 | GSE198239 | GEO

Human renal clear-cell carcinoma cells : control vs MUC1 overexpressing cells

Project description:Transcriptional profiling of human renal clear-cell carcinoma cells comparing control unexpressing MUC1 cells (82-F7 and 82-65 samples) with MUC1 overexpressing cells (83-2 and 83-5 samples) Goal was to determine the effect of MUC1 expression on global gene expression

2014-08-25 | E-GEOD-49594 | biostudies-arrayexpress

MUC1-C DICTATES NEUROENDOCRINE LINEAGE SPECIFICATION IN PANCREATIC DUCTAL ADENOCARCINOMAS

Project description:MUC1-C drives neuroendocrine lineage plasticity in pancreatic adenocarcinomas

2021-08-13 | GSE181961 | GEO

Human renal clear-cell carcinoma cells : control vs MUC1 overexpressing cells

2014-08-25 | GSE49594 | GEO

Impact of E2 ubiquitin conjugating activity of MUC1 on gene expression

Project description:We identified a novel E2 ubiquitin conjugating activity within the C-terminus domain of MUC1. To determine if E2 ubiquitin conjugating activity of MUC1 is responsible for regulating expression of oncogenic genes we isolated RNA from vector control cells, MUC1 wildtype overexpression cells, and cells that express a serine mutant lacking E2 activity. RNA was isolated from each of the 3 cell lines, S2013.Neo, S2013.MUC1-WT, and S2013.MUC1-Ser. Gene expression was analyzed by spotted microarray and the differences in gene expression were calculated between the cell lines

2016-08-01 | E-GEOD-60339 | biostudies-arrayexpress

Sequencing the anti-MUC1 hybridoma antibody 139H2

Project description:Mucin 1 (MUC1) is a transmembrane mucin expressed at the apical surface of epithelial cells at different mucosal surfaces including breast and intestine. The MUC1 extracellular domain contains a variable number of tandem repeats (VNTR) of 20 amino acids, which are heavily O-linked glycosylated. Monoclonal antibodies against the MUC1 VNTR can be powerful tools because of their multiplicity of binding and possible applications in the diagnosis and treatment of MUC1-expressing cancers. One such antibody is the hybridoma mouse monoclonal 139H2 which is also widely used as a research tool to study non-cancer MUC1. Here we report direct mass spectrometry-based sequencing of hybridoma-derived 139H2 IgG, which enabled reverse engineering of a recombinant 139H2.

2024-03-18 | PXD043489 | Pride

MUC1 elevation promote the progress of cervical squamous cell carcinoma through ERK phosphorylation and ITGA2/ITGA3

Project description:In contrast to the decreasing trends in developed countries, the incidence and mortality rates of cervical cancer in China have increased significantly. Screening and identification of reliable biomarkers and candidate drug targets of cervical cancer are urgent to improve the survival rate and quality of life of patients. In this study, we demonstrated that MUC1 displayed elevation in cervical squamous cell carcinoma (CSCC). The expression of MUC1 was higher in neoplastic compared with non-neoplastic tissues of the cervix, indicated its potential in early diagnosis of cervical squamous cell carcinoma. Next, we explored the regulatory mechanism of MUC1 in CSCC. MUC1 overexpression promoted the proliferation and metastasis abilities of cervical cancer cells. MUC1 could regulate ERK phosphorylation, then upregulated ITGA2 and ITGA3 expression. Further knockdown of ITGA2 and ITGA3 significantly inhibited tumorigenesis of cervical cancer cells. Moreover, we designed a combination drug regimen with MUC1-siRNA and ERK inhibitor in vivo, founding that the combination of drugs achieved better results in animals with xenograft compared with targeting MUC1 alone. Taken together, we discovered a novel regulatory MUC1/ERK/ITGA2/3 pathway in cervical cancer that may serve as potential biomarkers and therapeutic targets in the future.

2023-08-21 | GSE241017 | GEO

Transcription profiling of rat 3Y1 embryonic fibroblasts to identify MUC1-induced transcriptional alterations

Project description:The MUC1 oncoprotein is aberrantly overexpressed in diverse human malignancies including breast and lung cancer. Although MUC1 modulates the activity of several transcription factors, there is no information regarding the effects of MUC1 on global gene expression patterns and the potential role of MUC1-induced genes in predicting outcome for cancer patients. We have developed an experimental model of MUC1-induced transformation that has identified the activation of gene families involved in oncogenesis, angiogenesis and extracellular matrix remodeling. A set of experimentally-derived MUC1-induced genes associated with tumorigenesis was applied to the analysis of breast and lung adenocarcinoma cancer databases. A 35-gene MUC1-induced tumorigenesis signature (MTS) predicts significant decreases in both disease-free and overall survival in patients with breast (n = 295) and lung (n = 442) cancers. The data demonstrate that the MUC1 oncoprotein contributes to the regulation of genes that are highly predictive of clinical outcome in breast and lung cancer patients. Experiment Overall Design: To investigate the genes associated with MUC1-CD-induced transformation and tumorigenesis, we performed expression profiling of 3Y1/Vector (empty vector-transfected 3Y1) and 3Y1/MUC1-CD (MUC1-CD-transfected 3Y1) cells growing in vitro, and of 3Y1/MUC1-CD cells growing as tumor xenografts in athymic mice. Cells grown in vitro or as tumor xenografts were lysed to collect total RNA for hybridization with GeneChipÂ® Rat Genome 230 2.0 Arrays.

2009-04-19 | E-GEOD-14337 | biostudies-arrayexpress

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