Ontology highlight
ABSTRACT:
PROVIDER: PRJNA138767 | ENA |
REPOSITORIES: ENA
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Project description:This SuperSeries is composed of the following subset Series: GSE28567: EMT is the dominant program in human colon cancer (Affymetrix) GSE28709: EMT is the dominant program in human colon cancer (lung) GSE28722: EMT is the dominant program in human colon cancer (Agilent) Refer to individual Series
2011-04-25 | E-GEOD-28814 | biostudies-arrayexpress
Project description:EMT is the dominant program in human colon cancer (Agilent)
| PRJNA143111 | ENA
Project description:EMT is the dominant program in human colon cancer (lung)
| PRJNA143057 | ENA
Project description:EMT is the dominant program in human colon cancer (Affymetrix)
| PRJNA143015 | ENA
Project description:Dysregulation of Wnt/TCF signaling is closely associated with cancers arising from the gastrointestinal tract, inlcluding colon cancer and liver cancer. The goal of this study is to understand the transcriptional programs underlying Wnt/TCF activation in gastrointestinal cancers. We examined the transcriptional responses to TCF inhibition in cultured human colon cancer cells and liver cancer cells that are characteristic of Wnt pathway activation. Human liver cancer cell line HepG2 and colon cancer cell line LS174T with or without expression of a dominant negative form of TCF4
2013-08-01 | E-GEOD-46465 | biostudies-arrayexpress
Project description:Background: Epithelial-to-mesenchymal transition (EMT) is considered an important driving mechanism behind aggressive cancer phenotype. This was recently challenged by the finding that cells can metastasize without undergoing EMT. However, the same studies confirmed the important role of the EMT program in drug resistance. The EMT program is largely dependent on the cell’s microenvironment. Acriflavine (ACF) is a heteroaromatic dye with antibacterial and antiviral effects. Recently, ACF was suggested as anticancer agent for its topoisomerase inhibitor activity. ACF further blocks the hypoxia-inducible factor (HIF) pathway, an important driver of cancer aggressiveness. How ACF works in cancer is however unknown. Aim: Identification of the working mechanism, molecular pathways and signaling of ACF in EMT cancer cells. To this end, three in vitro models were developed of EMT induction (human pancreatic cancer cells stimulated with TGF-b1, human pancreatic cancer cells stimulated with CoCl2, drug resistance against sorafenib in human liver cancer cells). Only the first model - PANC1 stimulated with TGF-b1 - is discussed in this GEO submission.
2017-03-08 | GSE82293 | GEO
Project description:Background: Epithelial-to-mesenchymal transition (EMT) is considered an important driving mechanism behind aggressive cancer phenotype. This was recently challenged by the finding that cells can metastasize without undergoing EMT. However, the same studies confirmed the important role of the EMT program in drug resistance. The EMT program is largely dependent on the cell’s microenvironment. Acriflavine (ACF) is a heteroaromatic dye with antibacterial and antiviral effects. Recently, ACF was suggested as anticancer agent for its topoisomerase inhibitor activity. ACF further blocks the hypoxia-inducible factor (HIF) pathway, an important driver of cancer aggressiveness. How ACF works in cancer is however unknown. Aim: Identification of the working mechanism, molecular pathways and signaling of ACF in EMT cancer cells. To this end, three in vitro models were developed of EMT induction (human pancreatic cancer cells stimulated with TGF-b1, human pancreatic cancer cells stimulated with CoCl2, drug resistance against sorafenib in human liver cancer cells). Only the third model - drug resistance against sorafenib in HepG2 cells - is discussed in this GEO submission.
2017-03-08 | GSE82110 | GEO
Project description:Background: Epithelial-to-mesenchymal transition (EMT) is considered an important driving mechanism behind aggressive cancer phenotype. This was recently challenged by the finding that cells can metastasize without undergoing EMT. However, the same studies confirmed the important role of the EMT program in drug resistance. The EMT program is largely dependent on the cell’s microenvironment. Acriflavine (ACF) is a heteroaromatic dye with antibacterial and antiviral effects. Recently, ACF was suggested as anticancer agent for its topoisomerase inhibitor activity. ACF further blocks the hypoxia-inducible factor (HIF) pathway, an important driver of cancer aggressiveness. How ACF works in cancer is however unknown. Aim: Identification of the working mechanism, molecular pathways and signaling of ACF in EMT cancer cells. To this end, three in vitro models were developed of EMT induction (human pancreatic cancer cells stimulated with TGF-b1, human pancreatic cancer cells stimulated with CoCl2, drug resistance against sorafenib in human liver cancer cells). Only the second model - PANC1 with CoCl2, a model of severe hypoxia - is discussed in this GEO submission.
2017-03-08 | GSE82104 | GEO
Project description:Cancer stem cells (CSCs) are proposed to be responsible for metastatic dissemination and clinical relapse in a variety of cancers. Analogies between CSCs and normal tissue stem cells (SC) has led to the notion that CSCs often co-opt the normal SC program of their tissue-of-origin. The cell-biological program termed epithelial-mesenchymal transition (EMT) has been found to encourage entrance of normal and neoplastic mammary cells into the corresponding SC states. Using genetically engineered knock-in reporter mouse lines, we demonstrate that in the murine mammary lineage, the paralogous EMT-inducing transcription factors Snail and Slug, are selectively exploited by CSCs and normal SCs respectively. Slug, when expressed at physiological levels, only activates a partial EMT program and is dispensable in CSCs. In contrast, Snail drives a far more complete transition into the mesenchymal state and controls both tumor-initiation and metastatic dissemination. Consistent with their functional distinctions, Snail controls far more target genes than Slug, and their distinct functions are determined by their divergent N-terminal domains. Our findings underscore fundamental distinctions between the SC program operating in normal and neoplastic SCs, and hint for potential avenues of selective therapeutic elimination of breast CSCs. We sought to understand differential ability to activate the EMT program in breast cancer cells by transcription factors Snail and Slug. Hence, we mapped genome-wide Snail and Slug binding sites in murine MMTV-PyMT breast cancer cell lines that express high level of Snail or high level of Slug respectively. Specifically, we performed Snail ChIP seq in the mesenchymal pBl.3G cells, and Slug ChIP-seq in the epithelial pBl.1G cells.
2015-09-02 | E-GEOD-61198 | biostudies-arrayexpress