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. 2010 Feb 22;101(6):1493–1500. doi: 10.1111/j.1349-7006.2010.01539.x

Table 2.

 Reversal of P‐gp‐mediated drug resistances

RI50 values (μmol/L) for K562/MDR
Sunitinib CsA
VCR 0.44 ± 0.02 0.17 ± 0.004
PTX 0.30 ± 0.06 0.20 ± 0.02
DOX Not determined 0.29 ± 0.02
MXR Not determined 0.24 ± 0.01

Results are means ± SD of triplicate experiments. CsA, cyclosporin A; DOX, doxorubicin; MXR, mitoxantrone; PTX, paclitaxel; RI50, 50% reversal index; VCR, vincristine.