Comment[ArrayExpressAccession] E-GEOD-35972 Public Release Date 2012-02-22 Investigation Title TOV112D cells treated with NSC319726 Comment[AEExperimentDisplayName] Transcription profiling by array of ovarian carcinoma TOV-112D cells treated with NSC319726 to investigate the effect on p53 targets Comment[Submitted Name] TOV112D cells treated with NSC319726 Experiment Description Rescuing the function of mutant p53 protein is an attractive cancer therapeutic strategy. Using the NCI anticancer drug screen data, we identified two compounds from the thiosemicarbazone family that manifest increased growth inhibitory activity in mutant p53 cells, particularly for the p53R175 mutant. Mechanistic studies reveal that NSC319726 restores WT structure and function to the p53R175 mutant. This compound kills p53R172H knock-in mice with extensive apoptosis and inhibits xenograft tumor growth in a 175-allele specific mutant p53 dependent manner. This activity depends upon the zinc ion chelating properties of the compound as well as redox changes. These data identify NSC319726 as a p53R175 mutant reactivator and as a lead compound for p53 targeted drug development. We utilized gene expression microarrays to examine the transcriptional activity of p53 targets in TOV112D cells after treatment with NSC319726. Triplicate cultures of TOV112D cells untreated, treated with NSC319726. Total RNA was extracted and hybridized to Affymetrix human U133 plus 2.0 microarrays. Term Source Name EFO Term Source Version Term Source File http://www.ebi.ac.uk/efo/efo.owl Person Last Name Vazquez Vazquez Yu Carpizo Person First Name Alexei Alexei Xin Darren Person Mid Initials Person Email vazqueal@umdnj.edu Person Affiliation The Cancer Institute of New Jersey Person Phone Person Fax Person Address The Cancer Institute of New Jersey, 195 Little Albany St, New Brunswick, NJ, USA Person Roles submitter Person Roles Term Source REF EFO Protocol Name P-GSE35972-1 P-GSE35972-6 P-GSE35972-3 P-GSE35972-8 P-GSE35972-7 P-GSE35972-2 P-GSE35972-4 P-GSE35972-5 Protocol Description ID_REF =
VALUE = RMA normalized Hybridization was performed according to standard protocols for Affymetrix HG-U133 plus 2.0 arrays. TOV112D cells were cultured in DMEM + 10% FBS. The data was analyzed with Bioconductor, RMA normalization. Arrays were scanned using a GenePix 4000B microarray scanner. When cell confluency reached 50-60% (1 day) the cells were treated with NSC319726 (1 µM) for 24 hours before harvested for RNA extraction. RNA was extracted from the cells using Qiagen RNeasy kit. Biotinylated cRNA was generated using standard Affymetrix protocols. Protocol Type normalization data transformation protocol nucleic acid hybridization to array protocol growth protocol array scanning and feature extraction protocol array scanning and feature extraction protocol treatment protocol nucleic acid extraction protocol nucleic acid labeling protocol Protocol Term Source REF Protocol Term Accession Number Experimental Factor Name compound dose Experimental Factor Type compound dose Experimental Factor Term Source REF Experimental Factor Term Accession Number Publication Title Allele-specific p53 mutant reactivation. Publication Author List Yu X, Vazquez A, Levine AJ, Carpizo DR. PubMed ID 22624712 Publication DOI 10.1016/j.ccr.2012.03.042 Publication Status published Publication Status Term Source REF Publication Status Term Accession Number Comment[SecondaryAccession] GSE35972 Comment[GEOLastUpdateDate] 2012-02-23 Comment[AEExperimentType] transcription profiling by array Comment[GEOReleaseDate] 2012-02-22 Comment[ArrayExpressSubmissionDate] 2012-02-21 SDRF File E-GEOD-35972.sdrf.txt