Research Project
Grant-in-Aid for Scientific Research (C)
The major vault protein(MVP) is the main constituent of the vault ribonucleoprotein particle. Although the role in multidrug resistance has been suggested, the physiological function of vaults remains unclear. It has been reported that MVP levels were elevated after treatment with the DNA-damaging agents such as adriamycin(ADR). The aim of this study was to investigate molecular basis for the induction of MVP by ADM, and to investigate the potential role of MVP in drug resistance. Expression levels of both MVP protein and MVP mRNA were increased by ADM. ADM could also enhance MVP promoter activity. Introduction of siRNA against Sp-1 in SW620cells attenuated the expression of MVP induced by ADM. Down-regulation of MVP expression by MVP RNAi in SW620cells increased the sensitivity of the cells to ADM. Furthermore, ADM enhanced the activation of caspase 3 and caspase 8 in the MVP knock-down cells, but not in control cells. Our data demonstrate that exposure of cancer cells to DNA-damaging agents induces MVP that might have an important role in the resistance to chemotherapeutic agents.
All 2012 2011 2010 2009
All Journal Article (35 results) (of which Peer Reviewed: 35 results) Presentation (25 results)
Oncology Reports
Volume: (in press)
Oncology letters
Oncol.Rep.
Volume: (In press)
International Journal of Antimicrobial Agents
Volume: 38 Pages: 417-420
Biological and Pharmaceutical Bulletin
Volume: 34 Pages: 1418-1425
130001872434
Volume: 34 Pages: 433-435
130000657826
International Journal of Oncology
Volume: 38 Pages: 513-519
Oncology Letters
Volume: 2 Pages: 91-94
Biol.Pharm.Bull.
Int.J.Antimicrob.Agents
Int.J.Oncol.
Environmental Health Perspectives
Volume: 118 Pages: 1292-1298
Volume: 23 Pages: 1205-1212
Journal of Molecular Neuroscience
Volume: 42 Pages: 341-348
Experimental and Therapeutic Medicine
Volume: 1 Pages: 853-857
Molecular Medicine Reports
Volume: 6 Pages: 1031-1034
Volume: 36 Pages: 1193-1200
Cancer Science
Volume: 101 Pages: 920-926
10026590870
J.Mol.Neurosci.
Environ.Health Perspect.
Cancer Science 101
Pages: 920-926
International Journal of Oncology 36
Pages: 1193-1200
Volume: 34 Pages: 589-591
Journal of Applied Therapeutic Research
Volume: 7 Pages: 58-64
Cancer Therapy
Volume: 7 Pages: 277-281
Blood Coagulation and Fibrinolysis
Volume: 20 Pages: 176-184
Blood Coagulation and Fibrinolysis 20
Pages: 176-184
Cancer Therapy 7
Pages: 277-281
Journal of Applied Therapeutic Research 7
Pages: 58-64
International Journal of Antimicrobial Agents 34
Pages: 589-591