Human Gene Set: TSUNODA_CISPLATIN_RESISTANCE_UP


Standard name TSUNODA_CISPLATIN_RESISTANCE_UP
Systematic name M10202
Brief description Genes up-regulated in bladder cancer cells resistant to cisplatin [PubChem=2767] compared to the parental cells sensitive to the drug.
Full description or abstract To investigate the molecules that regulate the acquisition of cis-diamminedichloroplatinum (II) (cisplatin) resistance, we performed cDNA microarrays using two pairs of parental and cisplatin-resistant bladder cancer cell lines. We found a markedly reduced expression of inositol 1,4,5-trisphosphate (IP3) receptor type1 (IP3R1), endoplasmic reticulum membrane protein, in cisplatin-resistant cells. The suppression of IP3R1 expression using small interfering RNA in parental cells prevented apoptosis and resulted in decreased sensitivity to cisplatin. Contrarily, overexpression of IP3R1 in resistant cells induced apoptosis and increased sensitivity to cisplatin. These results suggest that cisplatin-induced downregulation of IP3R1 expression was closely associated with the acquisition of cisplatin resistance in bladder cancer cells.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 15608674   Authors: Tsunoda T,Koga H,Yokomizo A,Tatsugami K,Eto M,Inokuchi J,Hirata A,Masuda K,Okumura K,Naito S
Exact source Table 1, 2: Downregulated genes
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(show 5 gene sets from the same authors)
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Source species Homo sapiens
Contributed by Leona Saunders (MSigDB Team)
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identifier namespace		 HUMAN_SEQ_ACCESSION
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