Circumvention of the intrinsic multidrug-resistance in renal cell carcinoma

Most of renal cell carcinomas (RCCs) are refractory at the start of chemotherapy. We have demonstrated that the frequently elevated expression of the multidrug resistance gene (MDR) in RCCs is associated with the intrinsic vinca alkaloids and anthracyclines resistance. The preliminary clinical trial...

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Bibliographische Detailangaben
Veröffentlicht in:Hinyokika kiyo. Acta urologica Japonica. - 1962. - 38(1992), 11 vom: 10. Nov., Seite 1319-24
1. Verfasser: Kakehi, Y (VerfasserIn)
Weitere Verfasser: Segawa, T, Hashimura, T, Yoshida, O
Format: Aufsatz
Sprache:Japanese
Veröffentlicht: 1992
Zugriff auf das übergeordnete Werk:Hinyokika kiyo. Acta urologica Japonica
Schlagworte:Case Reports English Abstract Journal Article Research Support, Non-U.S. Gov't Alkaloids Benzylisoquinolines Ethylenediamines Terpenes N-solanesyl-N,N'-bis(3,4-dimethoxybenzyl)ethylenediamine 103190-36-9 mehr... Vinblastine 5V9KLZ54CY cepharanthine 7592YJ0J6T Doxorubicin 80168379AG
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520 |a Most of renal cell carcinomas (RCCs) are refractory at the start of chemotherapy. We have demonstrated that the frequently elevated expression of the multidrug resistance gene (MDR) in RCCs is associated with the intrinsic vinca alkaloids and anthracyclines resistance. The preliminary clinical trials using verapamil or amiodarone in combination with vinblastine or doxorubicin to overcome multidrug-resistant (MDR) tumors could not achieve satisfactory results owing to severe cardiovascular toxicities of such reversing agents. In the present study, we studied the sensitizing ability of bis-benzyl-isoquinoline (cepharanthine) and SDB-ethylenediamine (N-1379) in natural MDR kidney cancer cells. Cepharanthine remarkably sensitized vinblastine and doxorubicin sensitivities in those cells with high MDR RNA levels. From a clinical point of view, cepharanthine seems to be a potent and less toxic agent to treat natural MDR kidney cancers 
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700 1 |a Hashimura, T  |e verfasserin  |4 aut 
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