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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells: GNE silencing

ABSTRACT: Early invasive growth and metastasis are features of pancreatic cancer that rely on resistance to anoikis, an apoptosis program activated upon loss of adequate matrix anchorage. Re-expression of the tumor suppressor p16 reversed anoikis resistance of pancreatic cancer cells. This conversion to an anoikis-susceptible phenotype was found to be associated with a striking loss of GNE mRNA expression, prompting us to address the role of GNE in pancreatic cancer in more detail. GNE catalyzes a rate-limiting key step of the sialic acid biosynthesis and may have additional functions in the nucleus. Pancreatic cancer cells Capan-1. Three GNE-silencing samples and three control samples.

ORGANISM(S): Homo sapiens

SUBMITTER: Wolfgang Kemmner

PROVIDER: E-GEOD-22336 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Loss of UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase (GNE) induces apoptotic processes in pancreatic carcinoma cells.

Kemmner Wolfgang W Kessel Pia P Sanchez-Ruderisch Hugo H Möller Heinz H Hinderlich Stephan S Schlag Peter M PM Detjen Katharina K

FASEB journal : official publication of the Federation of American Societies for Experimental Biology 20111102 2

Early invasive growth and metastasis are features of pancreatic cancer that rely on its resistance to anoikis, an apoptosis program activated on loss of matrix anchorage. How anoikis is regulated is unclear. UDP-N-acetylglucosamine-2-epimerase/N-acetylmannosamine-kinase (GNE) was silenced, or p16 was overexpressed, in human pancreatic carcinoma cells. Gene expression profiling, enzymatic assays, Western blotting, and cell cycle analysis were conducted. Silencing of GNE, the key enzyme of sialic ...[more]

PMID: 22049060

Similar Datasets

UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells

Project description:This SuperSeries is composed of the following subset Series: GSE22334: Induction of apoptotic processes in Capan-1 pancreatic carcinoma cells by restoration of p16INK4a expression GSE22336: UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells: GNE silencing Refer to individual Series

2010-08-01 | E-GEOD-22337 | biostudies-arrayexpress

UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells: GNE silencing

Project description:Early invasive growth and metastasis are features of pancreatic cancer that rely on resistance to anoikis, an apoptosis program activated upon loss of adequate matrix anchorage. Re-expression of the tumor suppressor p16 reversed anoikis resistance of pancreatic cancer cells. This conversion to an anoikis-susceptible phenotype was found to be associated with a striking loss of GNE mRNA expression, prompting us to address the role of GNE in pancreatic cancer in more detail. GNE catalyzes a rate-limiting key step of the sialic acid biosynthesis and may have additional functions in the nucleus.

2010-08-01 | GSE22336 | GEO

Induction of apoptotic processes in Capan-1 pancreatic carcinoma cells by restoration of p16INK4a expression

2010-08-01 | E-GEOD-22334 | biostudies-arrayexpress

Induction of apoptotic processes in Capan-1 pancreatic carcinoma cells by restoration of p16INK4a expression

2010-08-01 | GSE22334 | GEO

UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells: GNE silencing

Project description: Not available

| S-ECPF-GEOD-22336 | biostudies-other

Differential gene expression in Fosl1 siRNA vs Control siRNA treated murine pancreatic cancer cells

Project description:A subset of human pancreatic ductal adenocarcinoma cells (PDACs) is characterized by high Fosl1 expression and Fosl1 is linked to the control of pro-inflammatory pathways and growth of PDAC cells. To mimick the human disease in mice (> 90% of PDAC patients harbour Kras mutations) the mutated LSL-KrasG12D allele was combined with the pancreas specific Cre recombinase Ptf1aCre (p48Cre). The two pancreatic cancer cell lines (Ptf1aCre, LSL-KrasG12D/+) were isolated from these mice and used for transcriptomics studies. The two different murine pancreatic cancer cell lines (Ptf1aCre, LSL-KrasG12D) were treated with two different Fosl1 siRNAs and one control siRNA, each. 72h after transfection a sufficient knockdown was tested by immunoblotting and qPCR. Total mRNA was isolated and checked for integrity. According to manufacture's recommendation the samples were subjected to microarray analysis using the Affymetrix Mouse Gene ST 1.0 array chip to discover differentially expressed genes.

2016-12-23 | E-MTAB-4299 | biostudies-arrayexpress

UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE) is an inducer of apoptotic processes in Capan-1 pancreatic carcinoma cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2010-08-01 | GSE22337 | GEO

HOXB7 mRNA is overexpressed in pancreatic ductal adenocarcinomas and its knockdown induces cell cycle arrest and apoptosis.

Project description:In order to determine the role of HOXB7 gene in cell lines derived from pancreatic ductal adenocarcinoma (MIA PaCa-2 e Capan-1), we performed its silencing utilizing the technique of RNA interference (RNAi). Total RNA derived from the inhibition as well as from parental cells was quantified in Bioanalyzer (Agilent,Santa Clara, CA, USA) and employed in the Agilent platform (4x44K). Proceeded with the guidelines of the One Color Microarray-Based Gene Expression Protocol (Agilent) and with the use of the Agilent Low Input Quick Amp Labeling Kit. HOXB7 knockdown elicited the modulation of several biological processes, especially in the MIA Paca-2 cell line, such as proteasomal ubiquitin-dependent catabolic process, synthesis of amines and cell cycle. Moreover, it showed induction of apoptosis and reduction in cell proliferation by flow cytometry and MTT assay, respectively. In this context, HOXB7 represents another component associated with the extensive network of molecules involved in the tumorigenesis of pancreatic cancer and could be a promising target for future biologic therapies. The procedure was performed in duplicate for both cell lines, which were sorted into treated and untreated with RNAi.

2013-07-26 | E-GEOD-46393 | biostudies-arrayexpress

Transcription profiling of human pancreatic cancer treated with masitinib combined with standard gemcitabine chemotherapy

Project description:Masitinib is a tyrosine kinase inhibitor of c-Kit, PDGFRÎ± and Î², and to some extent Lyn of the Src kinase family. We evaluated the therapeutic potential of masitinib in vitro on human pancreatic tumour cell lines and in vivo in a mouse model of human pancreatic cancer. Experiment Overall Design: Expression patterns of masitinib tyrosine kinase targets including c-Kit, PDGFRÎ± and PDGFRÎ² were determined in four pancreatic tumour cell lines by PCR. Proliferation assays were performed with masitinib alone or in combination with gemcitabine. To determine the in vivo effects of masitinib, Nog-SCID mice were injected subcutaneously with MiaPacaÂ2 cells, randomised 28 days later and received one of the following treatments: vehicle control p.o., masitinib p.o., gemcitabine i.p., or a combination of masitinib plus gemcitabine. Additionally, the transcriptome of MiaPacaÂ2 cells for each of these conditions was determined with Affymetrix arrays.

2009-09-17 | E-GEOD-17987 | biostudies-arrayexpress

Differentially expressed genes after miRNA or siRNA transfection in human cancer cell lines Panc-1, FaDu and PC3

Project description:To identify differentially expressed genes by anti cancer treatments (microRNAs or siRNAs) in human cancer, several cell lines (pancreatic cancer, hypopharyngeal squamous cell carcinoma and prostate cancer) were subjected to Agilent whole genome microarrays. Human cell lines (Panc-1, FaDu and PC3) were treated with miRNAs (miR99a-5p, miR-99a-3p, miR-100-3p, miR-150-5p and miR-150-3p), siRNAs (si-FOXQ1).

2016-08-16 | E-GEOD-85614 | biostudies-arrayexpress

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