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NCOA3 upregulates MUC4 and MUC1 transcriptionally and through post-translational stability during pancreatic cancer development

ABSTRACT: Stable knock down of NCOA3 in PC cell lines resulted in significant downregulation of the two most differentially expressed MUCs in PC, MUC4 and MUC1. NCOA3 creates pro-inflammatory conditions by up-regulating chemokines like CXCL1, 2, 5 and CCL20 Stable Knock down of NCOA3 in CD18/HPAF cell line. RNA was isolated from control and stably transfected cells. Each group has three biological replicate.

ORGANISM(S): Homo sapiens

SUBMITTER: Sushil Kumar

PROVIDER: E-GEOD-51482 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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NCOA3 upregulates MUC4 and MUC1 transcriptionally and through post-translational stability during pancreatic cancer development

Project description:Stable knock down of NCOA3 in PC cell lines resulted in significant downregulation of the two most differentially expressed MUCs in PC, MUC4 and MUC1. NCOA3 creates pro-inflammatory conditions by up-regulating chemokines like CXCL1, 2, 5 and CCL20

2013-12-19 | GSE51482 | GEO

MUC1-C Drives Lineage Plasticity in Progression to Neuroendocrine Prostate Cancer

Project description:Neuroendocrine prostate cancer (NEPC) is a highly aggressive malignancy of increasing prevalence with an unmet need for targeted therapeutic approaches. The oncogenic MUC1-C protein is overexpressed in castration-resistant prostate cancer (CRPC) and NEPC; however, there is no known role for MUC1-C in driving lineage plasticity to these advanced PC phenotypes. The present studies demonstrate that upregulation of MUC1-C in androgen-independent (AI) PC cells suppresses androgen receptor (AR) axis signaling and induces the neural BRN2 transcription factor by a previously unrecognized MYC-mediated mechanism. MUC1-C activates the BRN2 pathway in association with induction of MYCN, EZH2 and NE differentiation markers (ASCL1, AURKA and SYP), which are linked to NEPC progression. We also show that MUC1-C suppresses the p53 pathway, induces the Yamanaka pluripotency factors (OCT4, SOX2, KLF4 and MYC) and drives stemness. Of potential clinical relevance, targeting MUC1-C decreases PC self-renewal capacity and tumorigenicity, supporting the treatment of CRPC and NEPC with agents directed against this oncoprotein. These findings and the demonstration that MUC1-C is upregulated and associated with suppression of AR signaling, and increases in BRN2 expression and the NEPC score in PC tissues highlight the unanticipated importance of MUC1-C as a master effector of lineage plasticity in progression to advanced PC with NE features.

2019-12-02 | GSE139335 | GEO

Homo sapiens

Project description:NCOA3 upregulates MUC4 and MUC1 transcriptionally and through post-translational stability during pancreatic cancer development

| PRJNA223292 | ENA

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

Expression of genes in the spleen of WT and MUC1.Tg mice immunized with dendritic cells loaded with MUC1 peptide

Project description:Goal of study: To determine differentially expressed genes with potential roles in tolerance and immunity in MUC1-immunized WT and MUC1.Tg mice WT (C57Bl/6) and MUC1.Tg mice were immunized (i.v.) with dendritic cells loaded with sythetic, human MUC1 peptide. At 24h and 72h splenic RNA from vaccination groups (n=3) was pooled and microarray performed.

2013-01-16 | E-GEOD-43503 | biostudies-arrayexpress

RNA sequencing in kidneys of MUC1 Kidney Disease mouse model with and without treatment

Project description:MUC1 kidney disease mouse model generated by knock-in of the human mutated MUC1-fs gene. The mice were treated for 7 days, daily with either vehicle control or BRD4780, a compound showed to be beneficial to disease cells in-vitro. The kidneys were then removed and the bulk RNA was sequenced. The goal of this study was to undersand the effect of the compound on the diseased kidneys and to gain insights to its mechanism of action.

2019-04-18 | GSE129941 | GEO

NCOA3 upregulates MUC4 and MUC1 transcriptionally and through post-translational stability during pancreatic cancer development

Project description: Not available

| S-ECPF-GEOD-51482 | biostudies-other

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

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

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

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