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MicroRNA expression array of 1833 cells: control vs. HMGA2 shRNA

ABSTRACT: HMGA2 has been implicated in tumor progression. Identification of microRNAs regulated by HMGA2 helps us to understand how HMGA2 regulates tumor metastasis via its downstream target mircoRNAs and genes.

ORGANISM(S): Mus musculus Rattus norvegicus Homo sapiens

PROVIDER: GSE43739 | GEO | 2014/06/01

SECONDARY ACCESSION(S): PRJNA187198

REPOSITORIES: GEO

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MicroRNA expression array of 1833 cells: control vs. HMGA2 shRNA

Project description:HMGA2 has been implicated in tumor progression. Identification of microRNAs regulated by HMGA2 helps us to understand how HMGA2 regulates tumor metastasis via its downstream target mircoRNAs and genes. Total RNA was extracted from 1833 cells with control or depleted HMGA2 expression, respectively. Exiqon miRCURY LNA 5th generation expression array was performed to identify the microRNAs regulated by HMGA2.

2014-06-01 | E-GEOD-43739 | biostudies-arrayexpress

MicroRNA expression array for 1833 cells expressing RKIP vs. control

2014-07-01 | GSE47366 | GEO

MicroRNA expression array of 1833 cells: control vs. HMGA2 shRNA

Project description: Not available

| S-ECPF-GEOD-43739 | biostudies-other

MicroRNA expression array for 1833 cells expressing RKIP vs. control

Project description:RKIP has been implicated in suppression of breast tumor metastasis. Identification of microRNAs regulated by RKIP helps us to understand how RKIP suppresses tumor metastasis via its downstream target mircoRNAs and genes. Total RNA was extracted from 1833 cells expressing RKIP or control, respectively. Exiqon miRCURY LNA array v.11.0. was performed to identify the microRNAs regulated by RKIP.

2014-07-01 | E-GEOD-47366 | biostudies-arrayexpress

Transcription profiling by array of MDA-MB-231 cells with HMGA2 knock-down

Project description:We have reported that the nuclear protein high mobility group A2 (HMGA2), is required for the induction of EMT by TGF-beta (Thuault et al. J. Cell Biol. 2006). HMGA2 regulates a cohort of transcriptional regulators of the EMT process, such as Snail1 and Twist1 (Thuault et al. J. Biol. Chem. 2008, E-Jean Tan et al. J. Biol. Chem. 2012). Since HMGA2 is a chromatin-associated protein, we expect that it should regulate many genes in addition to the EMT-related factors. The aim of our study is to decipher novel molecular mechanisms that explain how EMT links to the process of tumor-initiating cell self-renewal via the chromatin factor HMGA2. In this experiment, we stably transfected human breast cancer MDA-MB-231 cells with shRNA against HMGA2 and investigated effects of the knock-down on global gene expression using Affymetrix arrays, in order to identify novel downstream players involved in this network. In parallel experiments we also analyzed the phenotypic effects of the HMGA2 knock-down on MDA-MB-231 cell proliferation, survival and inavasiveness.

2012-02-13 | E-MEXP-3547 | biostudies-arrayexpress

The microRNA profile analysis of the function of HMGA2 in immortalized human ovarian surface epithelial cell lines

2010-09-11 | GSE23634 | GEO

The microRNA profile analysis of the function of HMGA2 in immortalized human ovarian surface epithelial cell lines

Project description:To identify HMGA2-regulated downstream target microRNAs, we compared the difference of microRNA profiles between ovarian surface epithelial cells without HMGA2 (T29) and cells with HMGA2 (T29A2). Immortalized ovarian surface epithelial cells (named T29) were transfected with HMGA2 retrovirus vector pBabe-HMGA2 (named T29A2). Then cells were harvested for RNA isolation for microRNA expression analysis.

2010-09-11 | E-GEOD-23634 | biostudies-arrayexpress

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

HMGA2 overexpression

2011-02-06 | E-GEOD-24071 | 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

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