Table 1 Level of drug resistance, indicated as IC50 values (ng ml−1)

From: Valproic acid inhibits adhesion of vincristine- and cisplatin-resistant neuroblastoma tumour cells to endothelium

Cell line

IC 50 VCR

IC 50 DOX

IC 50 CDDP

UKF-NB-2

0.74±0.15

8.2±2.5

136±41

UKF-NB-2VCR

47.9±11.2

114.6±20.7

154±32

UKF-NB-2DOX

23.4±6.4

40.7±12.3

225±38

UKF-NB-2CDDP

1.35±0.47

17.4±7.7

819±52

UKF-NB-3

0.35±0.09

2.25±0.78

188±22

UKF-NB-3VCR

52.7±9.8

69.1±15.8

532±68

UKF-NB-3DOX

205±51.2

62.5±15.4

231±22

UKF-NB-3CDDP

0.84±0.31

17.3±2.4

1278±177

UKF-NB-6

1.91±0.18

3.5±0.9

114±22

UKF-NB-6VCR

57.2±11.2

108±12

523±69

UKF-NB-6DOX

19.5±3.4

17.2±6.5

102±18

UKF-NB-6CDDP

3.72±0.76

21.4±4.5

2102±150

SKNSH

7.9±1.3

25.4±10.1

47.1±13.5

  1. Values are from six independent experiments±s.d.