TABLE 1

Effects of flavonoids on the accumulation of mitoxantrone in both parent and mitoxantrone-selected MCF-7 and NCI-H460 cells

The cellular accumulation of mitoxantrone in MCF-7 and NCI-H460 cells (both parent and drug-selected) in the absence or presence of flavonoids (50 μM) was performed as described under Materials and Methods. FTC (10 μM) was used as a positive control. The accumulation of mitoxantrone was expressed as percent of control (in the presence of the vehicle, 0.1% DMSO). The data were expressed as mean ± S.D., n = 6 or 8.

MCF-7/Sensitive MCF-7 MX100 NCI-H460 NCI-H460 MX20
Control 100 ± 13.4 100 ± 14.8 100 ± 4.42 100 ± 11.0
Apigenin 88.6 ± 9.85 321 ± 36.1*** 89.0 ± 10.8 355 ± 36.2***
Biochanin A 114 ± 12.4 440 ± 99.5*** 129 ± 14.2*** 463 ± 59.7***
Chrysin 98.5 ± 8.03 389 ± 94.1*** 97.4 ± 15.0 367 ± 35.5***
Daidzein 106 ± 10.9 215 ± 13.1*** 93.8 ± 18.3 297 ± 23.1***
EGC 101 ± 10.6 155 ± 19.1 73.5 ± 11.9* 95.6 ± 15.0
EGCG 52.9 ± 8.78*** 132 ± 15.6 25.7 ± 2.92*** 34.4 ± 8.00
Fisetin 105 ± 16.1 223 ± 33.2*** 78.4 ± 10.0 226 ± 37.0***
Genistein 104 ± 12.9 412 ± 47.0*** 105 ± 10.1 331 ± 54.0***
Hesperetin 112 ± 15.9 362 ± 55.2*** 101 ± 26.8 305 ± 55.8***
Kaempferol 85.2 ± 11.3 378 ± 17.3*** 80.5 ± 10.4 301 ± 42.5***
Luteolin 69.5 ± 10.2*** 155 ± 19.5 63.7 ± 8.48*** 213 ± 23.6***
Morin 60.2 ± 9.25*** 186 ± 33.8 45.8 ± 6.92*** 153 ± 30.3
Myricetin 86.5 ± 11.8 102 ± 17.5 52.0 ± 5.40*** 75.2 ± 16.3
Naringenin 109 ± 11.8 345 ± 46.4*** 102 ± 17.05 338 ± 28.0***
Naringin 107 ± 6.09 149 ± 62.1 98.7 ± 6.66 102 ± 23.2
Phloretin 94.8 ± 6.84 216 ± 44.1*** 96.9 ± 12.3 304 ± 33.9***
Phloridzin 97.7 ± 11.7 114 ± 14.6 95.2 ± 12.5 78.0 ± 14.3
Quercetin 80.3 ± 8.64 206 ± 18.3* 71.6 ± 5.52*** 233 ± 18.4***
Silibin 105 ± 18.5 209 ± 19.7* 128 ± 13.6*** 331 ± 41.4***
Silymarin 103 ± 11.9 302 ± 60.9*** 104 ± 18.4 344 ± 70.7***
FTC 116 ± 9.30 439 ± 89.8*** 124 ± 19.8* 404 ± 40.4***
  • EGC, epigallocatechin; EGCG, epigallocatechin gallate.

  • * P < 0.05.

  • ** P < 0.01.

  • *** P < 0.001.