Gene Set: MARTINEZ_RESPONSE_TO_TRABECTEDIN_UP

Standard name MARTINEZ_RESPONSE_TO_TRABECTEDIN_UP
Systematic name M5190
Brief description Genes up-regulated in at least 8 of 11 sarcoma cell lines by trabectedin [PubChem=3199].
Full description or abstract Ecteinascidin 743 (ET-743; Yondelis, Trabectedin) is a marine anticancer agent that induces long-lasting objective remissions and tumor control in a subset of patients with pretreated/resistant soft-tissue sarcoma. Drug-induced tumor control is achievable in 22% of such patients, but there is no clear indication of the molecular features correlated with clinical sensitivity/resistance to ET-743. Nine low-passage, soft-tissue sarcoma cell lines, explanted from chemo-naive patients with different patterns of sensitivity, have been profiled with a cDNA microarray containing 6,700 cancer-related genes. The molecular signature of these cell lines was analyzed at baseline and at four different times after ET-743 exposure. The association of levels of TP53 mutation and TP73 expression with ET-743 sensitivity and cell cycle kinetics after treatment was also analyzed. Gene expression profile analysis revealed up-regulation of 86 genes and down-regulation of 244 genes in response to ET-743. The ET-743 gene expression signature identified a group of genes related with cell cycle control, stress, and DNA-damage response (JUNB, ATF3, CS-1, SAT, GADD45B, and ID2) that were up-regulated in all the cell lines studied. The transcriptional signature 72 hours after ET-743 administration, associated with ET-743 sensitivity, showed a more efficient induction of genes involved in DNA-damage response and apoptosis, such as RAD17, BRCA1, PAR4, CDKN1A, and P53DINP1, in the sensitive cell line group. The transcriptional signature described here may lead to the identification of ET-743 downstream mediators and transcription regulators and the proposal of strategies by which ET-743-sensitive tumors may be identified.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 15897246   Authors: Martínez N,Sánchez-Beato M,Carnero A,Moneo V,Tercero JC,Fernández I,Navarrete M,Jimeno J,Piris MA
Exact source Suppl. data on the web
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Organism Homo sapiens
Contributed by John Newman (University of Washington)
Source platform HUMAN_GENE_SYMBOL
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Version history 3.0: Renamed from ET743_SARCOMA_UP

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