PMID- 9840345 OWN - NLM STAT- MEDLINE DCOM- 19990129 LR - 20190915 IS - 0300-5623 (Print) IS - 0300-5623 (Linking) VI - 26 IP - 5 DP - 1998 TI - Role of superoxide anion on the proliferation and c-Ha-ras or p53 expression in prostate cancer cell line PC3. PG - 349-53 AB - The purpose of this study was to investigate the role of superoxide anion (02-*) in the regulation of p53 or c-Ha-ras expression and proliferation in the prostate cancer cell line PC3. Cell proliferation was tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in the presence of O2-*, basic fibroblast growth factor (bFGF) or their combination. p53 or C-Ha-ras expression in the cells treated with O2-* was assayed by fluorescence in situ hybridization (FISH). The proliferation was significantly inhibited by O2-* in a concentration-dependent manner ranging from 9 to 36 micromol/l nicotinamide adenine dinucleotid (NADH) combined with 2-8 micromol/l N-methylphenazonium methyl sulfate (PMS). Enhancement of proliferation by 2 ng/ml bFGF was significantly inhibited by O2-*. Although O2-* was not able to alter c-Ha-ras gene expression, O2-* at the concentrations of 18 micromol/l NADH and 4 micromol/l PMS upregulated the expression of p53. O2-* may modulate proliferation and gene expression in PC3 cells. FAU - Wang, Z AU - Wang Z AD - Department of Biology, Lanzhou University, P.R. China. FAU - Zheng, R AU - Zheng R FAU - Fu, S AU - Fu S FAU - Chen, Y AU - Chen Y FAU - Duan, G AU - Duan G FAU - Qin, D AU - Qin D FAU - Liu, G AU - Liu G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Urol Res JT - Urological research JID - 0364311 RN - 0 (Anions) RN - 0 (Tumor Suppressor Protein p53) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 11062-77-4 (Superoxides) RN - EC 3.6.5.2 (Oncogene Protein p21(ras)) SB - IM MH - Anions/metabolism MH - Fibroblast Growth Factor 2/pharmacology MH - Gene Expression Regulation, Neoplastic/drug effects/*physiology MH - Humans MH - Male MH - Oncogene Protein p21(ras)/*genetics MH - *Prostatic Neoplasms MH - Superoxides/metabolism/*pharmacology MH - Tumor Cells, Cultured/drug effects/physiology MH - Tumor Suppressor Protein p53/*genetics EDAT- 1998/12/05 00:00 MHDA- 1998/12/05 00:01 CRDT- 1998/12/05 00:00 PHST- 1998/12/05 00:00 [pubmed] PHST- 1998/12/05 00:01 [medline] PHST- 1998/12/05 00:00 [entrez] AID - 10.1007/s002400050068 [doi] PST - ppublish SO - Urol Res. 1998;26(5):349-53. doi: 10.1007/s002400050068.