Wykoff, CC; Sotiriou, C; Cockman, ME; Ratcliffe, PJ; Maxwell, P; Liu, E; Harris, AL; (2004) Gene array of VHL mutation and hypoxia shows novel hypoxia-induced genes and that cyclin D1 is a VHL target gene. BRIT J CANCER , 90 (6) 1235 - 1243. 10.1038/sj.bjc.6601657.
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Gene expression analysis was performed on a human renal cancer cell line (786-0) with mutated VHL gene and a transfectant with wild-type VHL to analyse genes regulated by VHL and to compare with the gene programme regulated by hypoxia. There was a highly significant concordance of the global gene response to hypoxia and genes suppressed by VHL. Cyclin D1 was the most highly inducible transcript and 14-3-3 epsilon was downregulated. There were some genes regulated by VHL but not hypoxia in the renal cell line, suggesting a VHL role independent of hypoxia. However in nonrenal cell lines they were hypoxia regulated. These included several new pathways regulated by hypoxia, including RNase 6PL, collagen type I alpha 1, integrin alpha 5, ferritin light polypeptide, JM4 protein, transgelin and L1 cell adhesion molecule. These were not found in a recent SAGE analysis of the same cell line. Hypoxia induced downregulation of Cyclin D1 in nonrenal cells via an HIF independent pathway. The selective regulation of Cyclin D I by hypoxia in renal cells may therefore contribute to the tissue selectivity of VHL mutation.
|Title:||Gene array of VHL mutation and hypoxia shows novel hypoxia-induced genes and that cyclin D1 is a VHL target gene|
|Keywords:||VHL, hypoxia, cyclin D1, hypoxia inducible factor 1, renal, TUMOR-SUPPRESSOR PROTEIN, RENAL-CELL CARCINOMA, LINDAU-DISEASE, EXPRESSION, IDENTIFICATION, PHENOTYPE, LINE|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Medical Sciences > Medicine (Division of)|
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