Project description:In order to comprehensively identify genes directly regulated by AP4, a genome-wide chromatin-immunoprecipitation analysis (ChIP) followed by next generation sequencing (ChIP-seq) was performed after activation of a conditional AP4 allele in DLD-1 cells. One DLD-1 Sample was sequenced.

2013-05-31 | E-GEOD-46935 | biostudies-arrayexpress

Examination of HMGA2 binding genes in human HMGA2-exogenous overexpressed gastric cancer cells

Project description:HMGA2 significantly increased cell proliferation capacity of gastric cancer in a HMGA2-dependent manner both in vivo and in vitro and we found HMGA2 promoted GC through accelerating S-G2/M phase.To elucidate the underlining mechanism by which HMGA2 induced the change of phenotype in GC cells, we performed ChIP-seq analysis of HMGA2-OE MKN-45 cells with anti-HMGA2 antibody.

2021-08-18 | GSE174442 | GEO

Transcriptome of DLD-1 co-cultured with or without extracellular vesicels derived from Fusobacterium nucleatum

Project description:To explore the impact of FnEV on transcriptome of colorectal cancer cell line DLD-1

2024-05-01 | GSE241656 | GEO

ChIP-seq of AP4 binding in human colorectal cancer cells DLD-1.

2013-05-31 | GSE46935 | GEO

Ectopic expression of AP4 in human colorectal cancer cells DLD-1 for different times

Project description:To characterize the transcriptome of the transcription factor AP4 DLD-1 cells were infected with AP4 coding viruses for different periods of time. Adenovirus amplification and purification was performed as previously described (He et al., 1998). The minimal amount of virus needed to reach more than 90% infection efficiency was determined by monitoring GFP signals with fluorescence microscopy. DLD-1 cells were infected in serum-free medium with adenovirus for 3 hours. After removal an equal amount of medium containing 20% FBS was added. This study contains 17 Samples with different conditions/samples: Triplicates of non-infected cells as a control, triplicates of infections with an AP4 coding viruses harvested after 12, 24 and 48 hours and, as an additional control, a triplicate of cells infected with a GFP expressing virus harvested after 24 hours and unicates harvested after 12 and 48 hours.

2013-05-31 | E-GEOD-46578 | biostudies-arrayexpress

Ectopic expression of AP4 in human colorectal cancer cells DLD-1 for different times

2013-05-31 | GSE46578 | GEO

HMGA2 overexpression

Project description:Overexpression of high mobility group AT-hook 2 (HMGA2) associated with truncations of its 3’ untranslated region (UTR) with let-7 micro RNA-complementary sequences have been identified in patients with paroxysmal nocturnal hemoglobinuria (PNH). Here, we generated transgenic mice (∆Hmga2 mice) with a 3’UTR-trncated Hmga2 cDNA that overexpress Hmga2 mRNA and protein in hematopoietic organs. ∆Hmga2 mice showed proliferative hematopoiesis that mimicked a myeloproliferative neoplasm (MPN)-like phenotype with increased numbers of all lineages of peripheral blood cells, hypercellular bone marrow (BM), splenomegaly with extramedullary erythropoiesis, and erythropoietin-independent erythroid colony formation compared to wild-type mice. ∆Hmga2 BM-derived cells took over most of hematopoiesis in competitive repopulations during serial BM transplants. When we bred mice with circulating PNH cells (Piga- mice) with ∆Hmga2 mice, the lack of GPI-linked proteins did not add an additional clonal advantage to the ∆Hmga2+ cells. In summary, our results showed that the overexpression of a 3’UTR-truncated Hmga2 leads to a proliferative hematopoiesis with clonal advantage, which may explain clonal expansion in PNH or MPN at the level of HSC.

2011-02-06 | GSE24071 | GEO

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