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    • 2. 发明授权
    • Methods and agents for measuring and controlling multidrug resistance
    • 用于测量和控制多药耐药性的方法和试剂
    • US5851789A
    • 1998-12-22
    • US535995
    • 1995-09-29
    • Sanford M. SimonMelvin M. S. Schindler
    • Sanford M. SimonMelvin M. S. Schindler
    • G01N33/50C12Q1/18C12Q1/02G01N21/80G01N31/00
    • G01N33/5011
    • The predominant effect of pH change on multidrug resistance (MDR) independent of active drug efflux has been demonstrated in tumor cells through studies of the drugs doxorubicin and daunomycin. Specifically, the distribution of both drugs was monitored in fibroblasts and myeloma cells to examine the role of pH in drug partitioning. The invention comprises in one aspect the treatment of MDR by administering a therapeutically effective amount of a pH modulator. Diagnostic utilities are contemplated and extend to drug discovery assays and methods for measuring monitoring the status of the onset or development of pH-related conditions such as MDR, as well as the measurement of intracellular drug accumulation. Therapeutic compositions include a composition comprising a pH modulator alone or in combination with the dose-limited therapeutic agent(s), and a pharmaceutically acceptable excipient, are also contemplated.
    • 通过研究药物多柔比星和道诺霉素,已经在肿瘤细胞中证明了pH变化对多药耐药性(MDR)的主要影响,与活性药物流出无关。 具体来说,在成纤维细胞和骨髓瘤细胞中监测两种药物的分布,以检查pH在药物分配中的作用。 本发明在一个方面包括通过施用治疗有效量的pH调节剂治疗MDR。 诊断实用程序被考虑并且扩展到药物发现测定和用于测量监测pH相关条件如MDR的发作或发展的状态以及细胞内药物积累的测量的方法。 治疗组合物还包括包含单独或与剂量受限治疗剂组合的pH调节剂和药学上可接受的赋形剂的组合物。