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GSE68525
Mus musculus
6 Downloadable Samples
Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Defects in mitochondrial oxidative phosphorylation complexes, altered bioenergetics and metabolic shift are often seen in cancers. Here we show a role for the dysfunction of electron transport chain component, cytochrome c oxidase (CcO) in cancer progression. We show that genetic silencing of the CcO complex by shRNA expression and loss of CcO activity in multiple cell types from the mouse and human sources resulted in metabolic shift to glycolysis, loss of anchorage dependent growth and acquired invasive phenotypes. Disruption of CcO complex caused loss of transmembrane potential and induction of Ca2+/Calcineurin-mediated retrograde signaling. Propagation of this signaling, includes activation of PI3-kinase, IGF1R and Akt, Ca2+ sensitive transcription factors and also, TGF1, MMP16, periostin that are involved in oncogenic progression. Whole genome expression analysis showed up regulation of genes involved in cell signaling, extracellular matrix interactions, cell morphogenesis, cell motility and migration. The transcription profiles reveal extensive similarity to retrograde signaling initiated by partial mtDNA depletion, though distinct differences are observed in signaling induced by CcO dysfunction. The possible CcO dysfunction as a biomarker for cancer progression was supported by data showing that esophageal tumors from human patients show reduced CcO subunits IVi1 and Vb in regions that were previously shown to be hypoxic core of the tumors. Our results show that mitochondrial electron transport chain defect initiates a retrograde signaling. These results suggest that a defect in CcO complex can potentially induce tumor progression.
Publication Title
Disruption of cytochrome c oxidase function induces the Warburg effect and metabolic reprogramming.
Sample Metadata Fields
Cell line
View Samples- Mus musculus
- 24 Downloadable Samples
Affymetrix Murine Genome U74B Version 2 Array (mgu74bv2), Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)
Description
Analyses of six Ts1Cje (Down syndrome) and six normal littermate (2N) mouse brains at postnatal day 0.
Publication Title
Dosage-dependent over-expression of genes in the trisomic region of Ts1Cje mouse model for Down syndrome.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)
Description
Analyses of six Ts1Cje (Down syndrome) and six normal littermate (2N) mouse brains at postnatal day 0.
Publication Title
Dosage-dependent over-expression of genes in the trisomic region of Ts1Cje mouse model for Down syndrome.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Murine Genome U74B Version 2 Array (mgu74bv2), Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)
Description
Analyses of six Ts1Cje (Down syndrome) and six normal littermate (2N) mouse brains at postnatal day 0.
Publication Title
Dosage-dependent over-expression of genes in the trisomic region of Ts1Cje mouse model for Down syndrome.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
Gene expression profiling reveals a potential role of Iso towards hepatic differentiation of hAECs.
Publication Title
Global Gene Expression Profiling Reveals Isorhamnetin Induces Hepatic-Lineage Specific Differentiation in Human Amniotic Epithelial Cells.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 23 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Screening and validation of lncRNAs and circRNAs as miRNA sponges.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Intensive research in past two decades has uncovered the presence and importance of noncoding RNAs (ncRNAs), which includes microRNAs (miRs) and long ncRNAs (lncRNAs). These two classes of ncRNAs interact to a certain extent, as some lncRNAs bind to miRs to sequester them. Such lncRNAs are collectively called 'competing endogenous RNAs' or 'miRNA sponges'. In this study, we screened for lncRNAs that may act as miRNA sponges using the publicly available data sets and databases. To uncover the roles of miRNA sponges, loss-of-function experiments were conducted, which revealed the biological roles as miRNA sponges. LINC00324 is important for the cell survival by binding to miR-615-5p leading to the de-repression of its target BTG2 LOC400043 controls several biological functions via sequestering miR-28-3p and miR-96-5p, thereby changing the expressions of transcriptional regulators. Finally, we also screened for circular RNAs (circRNAs) that may function as miRNA sponges. The results were negative at least for the selected circRNAs in this study. In conclusion, miRNA sponges can be identified by applying a series of bioinformatics techniques and validated with biological experiments.
Publication Title
Screening and validation of lncRNAs and circRNAs as miRNA sponges.
Sample Metadata Fields
Cell line
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
We used microarrays to compare the expression profiles between brains of BCAS1 knockout and wild type mice
Publication Title
Mice lacking BCAS1, a novel myelin-associated protein, display hypomyelination, schizophrenia-like abnormal behaviors, and upregulation of inflammatory genes in the brain.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Objectives: Sex hormone receptors are reported to be present in human dental pulp (HDP) cells. The purpose of this study was to examine the biological significance of estrogen and androgen receptors (ER and AR, respectively) in HDP cells. Design: We isolated HDP cells expressing ER- and AR-mRNAs and investigated the expression status of the receptors and the response to sex hormones in the cells. Results: HDP cells expressing ER- and/or AR-mRNAs had the ability to form alizarin red S-positive nodules in which calcium and phosphorus were deposited in vitro and to differentiate into odontoblasts-like cells and dentin-like tissue in vivo. Individual clones isolated from HDP cells exhibited a different expression pattern of mRNA for ER and AR. Some clones expressed ER- and/or ER-mRNAs and the others coexpressed ER- and AR-mRNAs. Using the Ingenuity software, we found that 17-estradiol (E2) and dihydrotestosterone (DHT) could act directly on HDP cells through ER- or androgen signaling-mediated mechanisms. E2 or DHT stimulated the mRNA expression for genes related to odontogenesis of dentin-containing teeth and odontoblast differentiation, suggesting that ER and AR in HDP cells may be involved in dentinogenesis. Conclusions: Our findings provide new insights into the biological significance of sex hormone receptors in HDP cells.
Publication Title
Expression status of mRNA for sex hormone receptors in human dental pulp cells and the response to sex hormones in the cells.
Sample Metadata Fields
Sex, Specimen part, Treatment
View Samples- Homo sapiens
- 2 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
Inhibition of miR-361-3p by locked nucleic acid (LNA)/DNA antisense oligonucleotide markedly suppressed the growth of GFP-SAS cells.
Publication Title
MicroRNA-361-3p is a potent therapeutic target for oral squamous cell carcinoma.
Sample Metadata Fields
Specimen part, Cell line
View Samples