Design, Synthesis and Structure−Activity Relationships of Novel Taxane-Based Multidrug Resistance Reversal Agents
摘要:
A series of novel taxane-based multidrug resistance (MDR) reversal agents (TRAs) has been designed and synthesized. Structure-activity relationship (SAR) study clearly indicates that modification of the C-7 position with hydrophobic arenecarbonyleinnamoyl groups brings about high potency against drug efflux mediated by P-glycoprotein (P-gp). Six TRAs exhibit ability to modulate a wide range of ATP-binding cassette (ABC) transporters, such as P-gp, multidrug resistance-associated protein 1 (MRP1), and breast cancer resistance protein (BCRP), which may serve as novel broad-spectrum modulators of ABC transporters.
New taxanes as highly efficient reversal agents for multi-drug resistance in cancer cells
摘要:
New non-cytotoxic taxanes synthesized from 10-deacetylbaccatin III and special hydrophobic acylating agents show remarkable MDR reversal activity (less than or equal to 99.8%) against drug-resistant human breast cancer cells when co-administered with paclitaxel or doxorubicin. This activity is ascribed to the highly efficient blocking of P-glycoprotein efflux by these new taxanes. (C) 1998 Elsevier Science Ltd. All rights reserved.
Targeting FtsZ for Antituberculosis Drug Discovery: Noncytotoxic Taxanes as Novel Antituberculosis Agents
作者:Qing Huang、Fumiko Kirikae、Teruo Kirikae、Antonella Pepe、Amol Amin、Laurel Respicio、Richard A. Slayden、Peter J. Tonge、Iwao Ojima
DOI:10.1021/jm050920y
日期:2006.1.1
Screening of 120 taxanes identified a number of compounds that exhibited significant antituberculosis activity. Rational optimization of selected compounds led to the discovery that the C-seco-taxane-multidrug-resistance (MDR) reversal agents (C-seco-TRAs) are non-cytotoxic at the upper limit of solubility and detection (> 80 mu M), while maintaining MIC99 values of 1.25-2.5 mu M against drug-resistant and drug-sensitive strains of Mycobacterium tuberculosis (MTB). Treatment of MTB cells with TRA 3aa and 10a at the MIC caused filamentation and prolongation of the cells, a phenotypic response to FtsZ inactivation.
Design, Synthesis and Structure−Activity Relationships of Novel Taxane-Based Multidrug Resistance Reversal Agents
作者:Iwao Ojima、Christopher P. Borella、Xinyuan Wu、Pierre-Yves Bounaud、Cecilia Fumero Oderda、Matthew Sturm、Michael L. Miller、Subrata Chakravarty、Jin Chen、Qing Huang、Paula Pera、Tracy A. Brooks、Maria R. Baer、Ralph J. Bernacki
DOI:10.1021/jm049483y
日期:2005.3.1
A series of novel taxane-based multidrug resistance (MDR) reversal agents (TRAs) has been designed and synthesized. Structure-activity relationship (SAR) study clearly indicates that modification of the C-7 position with hydrophobic arenecarbonyleinnamoyl groups brings about high potency against drug efflux mediated by P-glycoprotein (P-gp). Six TRAs exhibit ability to modulate a wide range of ATP-binding cassette (ABC) transporters, such as P-gp, multidrug resistance-associated protein 1 (MRP1), and breast cancer resistance protein (BCRP), which may serve as novel broad-spectrum modulators of ABC transporters.
New taxanes as highly efficient reversal agents for multi-drug resistance in cancer cells
作者:Iwao Ojima、Pierre-Yves Bounaud、Craig Takeuchi、Paula Pera、Ralph J. Bernacki
DOI:10.1016/s0960-894x(97)10218-9
日期:1998.1
New non-cytotoxic taxanes synthesized from 10-deacetylbaccatin III and special hydrophobic acylating agents show remarkable MDR reversal activity (less than or equal to 99.8%) against drug-resistant human breast cancer cells when co-administered with paclitaxel or doxorubicin. This activity is ascribed to the highly efficient blocking of P-glycoprotein efflux by these new taxanes. (C) 1998 Elsevier Science Ltd. All rights reserved.