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Pharmacogenomics characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

ABSTRACT: Affymetrix SNP6.0 array data used to reveal predictive biomarkers of tumour sensitivity to MI-773 . MI-773 is a recently developed small-molecule inhibitor of the Mouse Double Minute 2 (MDM2) proto-oncogene. Here we report an integrative pharmacogenomic study to gain further insights into the therapeutic potential of the compound

ORGANISM(S): Homo sapiens

PROVIDER: GSE178763 | GEO | 2021/10/27

REPOSITORIES: GEO

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Pharmacogenomic characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

Project description:MI-773 is a recently developed small-molecule inhibitor of the Mouse Double Minute 2 (MDM2) proto-oncogene. Here we report an integrative pharmacogenomic study to gain further insights into the therapeutic potential of the compound.

2021-10-27 | GSE152529 | GEO

Pharmacogenomic characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

Project description:Pharmacogenomic characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

| PRJNA639587 | ENA

Pharmacogenomics characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

Project description:Pharmacogenomics characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers

| PRJNA740317 | ENA

Expression data from neuroblastoma cells treated with MI-773

Project description:Neuroblastoma (NB) is a common pediatric malignancy tumor with poor outcome. Recent studies show that MDM2 protein inhibitors are promising anti-cancer agents. MI-773 is a novel and specific antagonist of MDM2 and the molecular mechanisms of MI-773 in neuroblastoma are still unclear. In this study, we used microarrays to analyze the global change in gene expression as a result of MI-773 treatment in the human neuroblastoma cell line SH-SY5Y.

2021-08-06 | GSE174450 | GEO

Pharmacogenomics characterization of the MDM2 inhibitor MI-773 reveals candidate tumours and predictive biomarkers.

Project description: Not available

| S-EPMC8553758 | biostudies-literature

Expression data from neuroblastoma cells treated with MI-773

Project description:Expression data from neuroblastoma cells treated with MI-773

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Genome-wide maps of chromatin binding site for Mdm2.

Project description:The MDM2 oncoprotein is an essential component of the p53 pathway. Although MDM2 has been widely described as a major negative regulator of the p53 tumor suppressor, growing evidences support the notion that Mdm2 functions are also mediated through p53 independent mechanisms. We found that MDM2 is recruited on chromatin. By ChIP-Seq (using MDM2 antibody) of H1299 cells exhibiting MDM2 recruitment on chromatin, we identified at the whole genome level MDM2 binding sites. Both input and IPped-DNA were exhaustively sequenced and mapped on human genome

2016-06-09 | GSE64439 | GEO

Euclidia mi

Project description:Euclidia mi overview

| PRJNA853433 | ENA

mRNA Expression Data from Murine Hearts of Shiftwork MI, Normal MI and Sham Wildtype Mice at 24-hours Post-MI

Project description:Male C57Bl/6 mice were randomized to undergo 5 days of i) a shiftwork protocol (10-hour light: 10-hour dark cycle) before myocardial infarction (MI) surgery, ii) a normal 12-hour light: 12-hour dark environment before MI surgery, iii) a normal 12-hour light: 12-hour dark environment and used as sham controls, or iv) a shiftwork protocol (10-hour light: 10-hour dark cycle) and used as sham controls. MI surgery was performed on the 5th day, after which all mice were returned to a normal 12-hour light: 12-hour dark cycle. Hearts were collected 24-hours post-MI at ZT06. The microarray approach allows the investigation of transcriptome-wide gene expression changes in hearts from mice on a shiftwork cycle or on a regular light:dark cycle before MI.

2018-11-30 | GSE123092 | GEO

CDK4 inhibition diminishes p53 activation by Mdm2-antagonists

Project description:CDK4 inhibitors have reached clinical approval for cancer therapy. In parallel, the p53 antagonist Mdm2 remains an attractive target for anti-cancer therapy, including numerous clinical studies. The genes encoding Mdm2 and CDK4 are frequently co-amplified in human malignancies, most notably in liposarcomas, suggesting their combined targeting for therapy. Here we show, however, that small compounds that inhibit Mdm2 and CDK4 antagonize each other rather than synergize in their cytotoxicity towards sarcoma cells. CDK4 inhibition attenuates the induction of p53-responsive genes upon Mdm2 inhibition, and similar results were obtained when depleting Mdm2 and/or CDK4 with siRNA. CDK4 inhibitors also interfered with p53 activity in response to DNA damage. CDK4 inhibition did not reduce p53 binding or histone acetylation to promoters, but rather attenuated the subsequent recruitment of RNA polymerase II. The complexes of p53 and Mdm2, as well as CDK4 and Cyclin D1, physically associated with each other. Upon combined inhibition of Mdm2 and CDK4/6, the interaction of this complex was impaired. Thus, the CDK4-Cyclin D1 complex plays a key role in enabling the transcription of p53 target genes. Taken together, our results raise caution regarding the combination of CDK4 inhibitors with Mdm2 antagonists or conventional DNA-damaging chemotherapeutics in the clinics. Moreover, they suggest a hitherto unknown role for CDK4-cyclin D1 complex in sustaining p53 activity, possibly focusing p53-mediated transcription on actively proliferating cells.

2018-09-20 | GSE113369 | GEO

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