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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Image based identification and targeting of cancer stem cells in pancreatic adenocarcinoma (PDAC)

ABSTRACT: Purpose: The goals of this study were to identify quantitative gene expression differences between wild type, Musashi1 null, Msuashi2 null and Musashi1/Musashi2 null MIAPaCa2 pancreatic cancer cells mRNA profiles of MIA PaCa-2 cancer cells were generated by deep sequencing, in triplicate, using Illumina HiSeq2500.

ORGANISM(S): Homo sapiens

SUBMITTER: Roman Sasik

PROVIDER: E-GEOD-75797 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Image-based detection and targeting of therapy resistance in pancreatic adenocarcinoma.

Fox Raymond G RG Lytle Nikki K NK Jaquish Dawn V DV Park Frederick D FD Ito Takahiro T Bajaj Jeevisha J Koechlein Claire S CS Zimdahl Bryan B Yano Masato M Kopp Janel J Kritzik Marcie M Sicklick Jason J Sander Maike M Grandgenett Paul M PM Hollingsworth Michael A MA Shibata Shinsuke S Pizzo Donald D Valasek Mark M Sasik Roman R Scadeng Miriam M Okano Hideyuki H Kim Youngsoo Y MacLeod A Robert AR Lowy Andrew M AM Reya Tannishtha T

Nature 20160606 7607

Pancreatic intraepithelial neoplasia is a pre-malignant lesion that can progress to pancreatic ductal adenocarcinoma, a highly lethal malignancy marked by its late stage at clinical presentation and profound drug resistance. The genomic alterations that commonly occur in pancreatic cancer include activation of KRAS2 and inactivation of p53 and SMAD4 (refs 2-4). So far, however, it has been challenging to target these pathways therapeutically; thus the search for other key mediators of pancreatic ...[more]

PMID: 27281208

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Image based identification and targeting of cancer stem cells in pancreatic adenocarcinoma (PDAC)

Project description:Purpose: The goals of this study were to identify quantitative gene expression differences between wild type, Musashi1 null, Msuashi2 null and Musashi1/Musashi2 null MIAPaCa2 pancreatic cancer cells

2016-06-15 | GSE75797 | GEO

DNA-damage induced differentiation of leukemic cells as an anti-cancer barrier

Project description:Here we show that the histone methyltransferase MLL4 (Kmt2d) is required for stem cell activity and an aggressive form of acute myeloid leukemia (AML) harboring the MLL-AF9 oncogene. MLL4 exerts its function by regulating transcriptional programs associated with the anti-oxidant response. The role of Mll4 (Kmt2d) in regulating the transcriptome of primary and transformed hematopoietic stem cells was studied.

2014-07-22 | E-GEOD-57147 | biostudies-arrayexpress

MicroRNA screening in human pancreatic carcinoma cell lines

Project description:No reliable predictors of susceptibility to gemcitabine chemotherapy exist in pancreatic ductal adenocarcinoma. MicroRNAs (miR) are epigenetic gene regulators with tumorsuppressive or oncogenic roles in various carcinomas. This study assesses chemoresistant PDAC for its specific miR expression pattern. Gemcitabine-resistant variants of two mutant p53 human pancreatic adenocarcinoma cell lines were established. MicroRNA screening was investigated by microarray. Gemcitabine-resistant PANC-1 (PANC-1-GR) and MIA-PaCa-2 (MIA-PaCa-2-GR) cell clones were produced by exposing the parental cells to repeated pulsatile gemcitabine treatment over 3 days with constant sublethal concentrations followed by recovery-periods with agent-free medium until the cells recovered exponentially. Parental PANC-1 cells were treated with 0.4ÂµM gemcitabine cycles for approximately 9 months. Parental MIA-PaCa-2 cells were exposed to 0.06ÂµM gemcitabine cycles for approximately 12 months. Affymetrix GeneChip miRNA microarrays (Affymetrix UK Ltd., High Wycombe, UK) were performed in parental and chemoresistant PANC-1 and MIA-PaCa-2 cells after 29 chemotherapy cycles using the manufacturersÂ´ protocols. The samples were prepared from 1Âµg of total-RNA in accordance with the Affymetrix FlashTag Biotin HSR RNA Labeling Kit. The targets were hybridized overnight to Affymetrix GeneChip miRNA arrays. Following hybridization, the arrays were washed and stained using the Affymetrix GeneChip Fluidics Station 450 and scanned using the Affymetrix GeneChip Scanner 3000 7G. Microarray data quality was checked as recommended by the manufacturer and by the quality metrics in the Partek Genomics Suite software (Partek Inc., St. Louis, MO).

2015-11-03 | E-GEOD-74565 | biostudies-arrayexpress

microRNA screening in human pancreatic adenocarcinoma

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-11-03 | E-GEOD-74574 | biostudies-arrayexpress

Identification of tomato proteins that interact with Replication initiator protein (Rep) of the geminivirus TYLCV

Project description:In this study, an GFP-based affinity purification followed by mass spectrometry (AP-MS) approach is used in order to identify new tomato proteins that interact with the Replication initiator protein (Rep, AL1, C1) from Tomato yellow leaf curl virus (TYLCV).

2020-07-10 | PXD018011 | Pride

Transcription profiling of Capsicum fruit ripening process

Project description:Pepper fruits at four different developmental stages were collected: early fruit [EF; 1 cm long; 7 days after pollination (dap)], mature green fruit (MG; 6-7 cm length; 20 dap), breaking or turning red fruit (BR; fruit are partially red; 35 dap), and red ripe fruit (RR; fully red; 40 dap). Tomato fruits at corresponding developmental stages were also collected: EF (less than 1cm; 7 dap), MG (40 dap), BR (50 dap), and RR (55 dap). For the monitoring of fruit-specific and fruit ripening-related genes, we did array hybridization by using the leaves as a common reference and each corresponding fruit developmental stage sample.

2005-03-01 | E-MEXP-260 | biostudies-arrayexpress

Kinase activities in pancreatic ductal adenocarcinoma with prognostic and therapeutic avenues

Project description:The aim of this experiment is to unravel PDAC biology and phospho-print based on aberrant kinase activities and proteome alterations. For this we will perform pTYyrIP, Bravo_IMAC, and protein expression data of n=56 tissues encompassing 47 pancreatic ductal adenocarcinoma (PDAC), 5 cholangiocarcinoma, 1 Intraductal Papillary Mucinous Neoplasm (IPMN), 1 pancreatitis and 1 pancreatitis-Pancreatic Intraepithelial Neoplasia (PanIN) tissue. Pancreatitis, PanIN, and IPMN are seen as early events predecessing PDAC. An equiproportional pool of 5 PDAC cell lines (PANC1, SUIT-2, CFPAC-1, HPAC, MIAPACA2) is also taken along.

2024-04-23 | PXD043111 | Pride

Plastoglobules are a biosynthetic platform contributing to carotenoid accumulation during tomato fruit maturation

Project description:Chloroplasts and chromoplasts of tomato fruits contain lipid droplets known as plastoglobules (PG). Recent studies have shown that PG act as a metabolic sink to store triacylglycerol (TAG), carotenoids, vitamin E, and K as well as other lipophile compounds. In addition, it has been shown that proteins associated with PG contribute to prenyl lipid metabolic pathways and homeostasis. Proteome studies in Arabidopsis and bell pepper, have demonstrated that PG contains a specific proteome containing around 30 proteins. So far, the tomato PG proteome particularly that of red fruit (chromoplast) has not yet been established. We have investigated the chromoplast PG proteome and metabolome and identified 17 new candidate proteins of chromoplast PG with known PG proteins. Interestingly, most of the carotenoid biosynthetic pathway enzymes such as PSY‐1, PDS, ZDS, CRTISO, and β‐LYC are enriched in chromoplast PG compared with chloroplast PG. In this study, we propose a model of chromoplast PG acting as a carotenoid biosynthesis platform.

2023-03-11 | PXD035763 | Pride

Characterization of the tomato fruit pericarp proteome

Project description:In this work, we present an extended characterization of the proteome of the tomato pericarp in its ripe red stage. An extensive fractionation of peptides through high pH reverse phase was performed associated to LC-MS/MS analysis on a Sciex Triple-TOF 6600.

2016-12-22 | PXD004932 | Pride

Characterization of the tomato fruit pericarp proteome (2)

2016-12-22 | PXD004947 | Pride

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