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| Status |
Public on Mar 13, 2015 |
| Title |
The oncogene EVI1 enhances transcriptional and biological responses of human myeloid cells to all-trans retinoic acid [HL60] |
| Organism |
Homo sapiens |
| Experiment type |
Expression profiling by array
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| Summary |
The product of the ecotropic virus integration site 1 (EVI1) gene, whose overexpression is associated with a poor prognosis in myeloid leukemias and some epithelial tumors, regulates gene transcription both through direct DNA binding and through modulation of the activity of other sequence specific transcription factors. Previous results from our laboratory have shown that EVI1 influenced transcription regulation in response to the myeloid differentiation inducing agent, all-trans retinoic acid (ATRA), in a dual manner: it enhanced ATRA induced transcription of the RARb gene, but repressed the ATRA induction of the EVI1 gene itself. In the present study, we asked whether EVI1 would modulate the ATRA regulation of a larger number of genes, as well as biological responses to this agent, in human myeloid cells. U937 and HL-60 cells ectopically expressing EVI1 through retroviral transduction were subjected to microarray based gene expression analysis, and to assays measuring cellular proliferation, differentiation, and apoptosis. These experiments showed that EVI1 modulated the ATRA response of several dozens of genes, and in fact reinforced it in the vast majority of cases. A particularly strong synergy between EVI1 and ATRA was observed for GDF15, which codes for a member of the TGF-b superfamily of cytokines. In line with the gene expression results, EVI1 enhanced cell cycle arrest, differentiation, and apoptosis in response to ATRA, and knockdown of GDF15 counteracted some of these effects.
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| Overall design |
HL60 cells transduced with an EVI1 expression vector or empty vector as a control were treated with all-trans retinoic acid (ATRA) or an equivalent amount of DMSO (solvent) for 24 h prior to gene expression microarray analysis. 3 biological replicates were performed.
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| Contributor(s) |
Steinmetz B, Hackl H, Wieser R |
| Citation(s) |
25486480, 26036413 |
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| Submission date |
Mar 12, 2015 |
| Last update date |
Oct 09, 2019 |
| Contact name |
Rotraud Wieser |
| E-mail(s) |
rotraud.wieser@meduniwien.ac.at
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| Organization name |
Medical University of Vienna
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| Department |
Clinic of Medicine I
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| Street address |
Waehringer Guertel 18-20
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| City |
Vienna |
| ZIP/Postal code |
1090 |
| Country |
Austria |
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| Platforms (1) |
| GPL570 |
[HG-U133_Plus_2] Affymetrix Human Genome U133 Plus 2.0 Array |
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| Samples (12)
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| Relations |
| BioProject |
PRJNA278064 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE66837_RAW.tar |
55.0 Mb |
(http)(custom) |
TAR (of CEL) |
| Processed data included within Sample table |
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