Hydrostatic pressure enhances mitomycin C induced apoptosis in urothelial carcinoma cells

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题名:	Hydrostatic pressure enhances mitomycin C induced apoptosis in urothelial carcinoma cells
作者:	陳文逸;Chen, Shao-Kuan;Chung, Chih-Ang;Cheng, Yu-Che;Huang, Chi-Jung;Ruaan, Ruoh-Chyu;Chen, Wen-Yih;Li, Chuan;Tsao, Chia-Wen;Hu, Wei-Wen;Chien, Chih-Cheng
贡献者:	工學院化學工程與材料工程學系
关键词:	Antibiotics, Antineoplastic - administration & dosage;Apoptosis;Bioreactors;Caspase 3 - metabolism;Caspase 7 - metabolism;Cell Line, Tumor;Cell Proliferation;Cell Survival;Dose-Response Relationship, Drug;Drug Screening Assays, Antitumor;Equipment Design;Fas Ligand Protein - metabolism;Humans;Hydrostatic Pressure;Membrane Potential, Mitochondrial;Mitomycin - administration & dosage;Urologic Neoplasms - drug therapy;Urologic Neoplasms - pathology;Urology;Urothelium - drug effects
日期:	2014-01-01
上传时间:	2026-04-21 14:19:22 (UTC+8)
出版者:	Elsevier Inc.;United States: Elsevier Inc
摘要:	摘要： Urothelial carcinoma (UC) of the bladder is the second most common cancer of the genitourinary system. Clinical UC treatment usually involves transurethral resection of the bladder tumor followed by adjuvant intravesical immunotherapy or chemotherapy to prevent recurrence. Intravesical chemotherapy induces fewer side effects than immunotherapy but is less effective at preventing tumor recurrence. Improvement to intravesical chemotherapy is, therefore, needed. Cellular effects of mitomycin C (MMC) and hydrostatic pressure on UC BFTC905 cells were assessed. The viability of the UC cells was determined using cellular proliferation assay. Changes in apoptotic function were evaluated by caspase 3/7 activities, expression of FasL, and loss of mitochondrial membrane potential. Reduced cell viability was associated with increasing hydrostatic pressure. Caspase 3/7 activities were increased following treatment of the UC cells with MMC or hydrostatic pressure. In combination with 10kPa hydrostatic pressure, MMC treatment induced increasing FasL expression. The mitochondria of UC cells displayed increasingly impaired membrane potentials following a combined treatment with 10μg/ml MMC and 10kPa hydrostatic pressure. Both MMC and hydrostatic pressure can induce apoptosis in UC cells through an extrinsic pathway. Hydrostatic pressure specifically increases MMC-induced apoptosis and might minimize the side effects of the chemotherapy by reducing the concentration of the chemical agent. This study provides a new and alternative approach for treatment of patients with UC following transurethral resection of the bladder tumor. 其他題名： Urol Oncol 出版者： United States: Elsevier Inc 出版日期： 2014-01 出處： Urologic oncology, 2014-01, Vol.32 (1), p.26.e17-26.e24 版權： 2014 Elsevier Inc. 版權： Elsevier Inc. 版權： Copyright © 2014 Elsevier Inc. All rights reserved. 識別號： ISSN: 1078-1439 識別號： ISSN: 1873-2496 識別號： EISSN: 1873-2496 識別號： DOI: 10.1016/j.urolonc.2012.09.004 識別號： PMID: 23403205
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