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  • Title: [Effect of mouse uroplakin II promoter on human bladder cancer cell line].
    Author: Zhu HJ, Zhang ZQ, Zeng XF, Wei SS, Xu CX, Huang GJ, Guo YL.
    Journal: Zhonghua Zhong Liu Za Zhi; 2004 Jan; 26(1):22-5. PubMed ID: 15059347.
    Abstract:
    OBJECTIVE: To study the effect of gene expression of mouse uroplakin II (UPII) promoter on human bladder cell cancer cell line. METHODS: The mRNA expression of different cell lines was quantified by RT-PCR. Green fluorescent protein (GFP) and luciferase (Luc) were used as reporter genes. The plasmids carrying UPII or GFP were constructed and transfected into human cell lines of bladder transitional cell cancer (BIU-87), kindey cancer (GRC-1), vascular endothelium (EC), lung cancer cell line (A549) and skin fibroblast cell line (Hs27). GFP activity of cells was detected by confocual microscopy and flow cytometry (FCM). Luciferase value was measured by luminometer (microplate) and luciferase to beta-galactosidase ratios (L/G values) were used for evaluating transfection efficiency. RESULTS: RT-PCR showed high expression level of UPII mRNA in bladder cancer cell line BIU-87, whereas low level or no expression in nonbladder cancer cell lines. The activity of GFP in bladder cancer (BIU-87) cell was higher than that in the other cell lines (5 - 10/HP versus 0 - 2/HP), with 4.34% positive cells in BIU-87 detected by FCM, but no positive cell was found in the other cell lines. L/G values indicated that the luciferase expression in human bladder cancer cells transfected with mouse UPII promoter was 1.8 - 8.2-fold as high as that in the nonbladder cell lines. CONCLUSION: Mouse UPII promoter gene can be expressed in a tissue-specific fashion in human urinary bladder cancer. It is capable of initiating transcription of reporter genes in human bladder cancer cell line.
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