Comparative in vitro evaluation of dithiane analogs of tiapamil, Ro 11-2933, Ro 44-5911 and Ro 44-5912 as multidrug resistance modulators.

@article{Abderrabi1996ComparativeIV,
  title={Comparative in vitro evaluation of dithiane analogs of tiapamil, Ro 11-2933, Ro 44-5911 and Ro 44-5912 as multidrug resistance modulators.},
  author={M Abderrabi and Sophie Marchal and J. L. Merlin},
  journal={Anti-cancer drugs},
  year={1996},
  volume={7 4},
  pages={430-6}
}
The analogs of tiapamil are highly active modifiers of P-glycoprotein-mediated multidrug resistance (MDR) in vitro. The activity of three analogs of tiapamil, Ro 11-2933, Ro 44-5911 and Ro 44-5912, was compared in K562/DXR and MCF-7/DXR cell lines, using flow cytometry for the determination of intracellular daunorubicin accumulation and MTT assays for the cytotoxic evaluation of the modulators combined or not with daunorubicin. Ro 44-5911 and Ro 44-5912 were not intrinsically more toxic than DL… CONTINUE READING
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