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Table 4 Dosage effect of MAK-4 and MAK-5 on the growth of transformed Rat 6 cells

From: MAK-4 and -5 supplemented diet inhibits liver carcinogenesis in mice

Treatment

Cells (× 106/60 mm plate) ± SD

% of survival

 

Rat 6

R6/T24*

Rat 6

R6/T24

None (control)

0.94 ± 0.04

1.32 ± 0.04

100

100

MAK-4:

    

200 μg/ml

1.24 ± 0.12

1.52 ± 0.05

138

141

500 μg/ml

0.94 ± 0.08

1.27 ± 0.06

112

115

1000 μg/ml

0.82 ± 0.09

1.29 ± 0.07

91

119

MAK-5:

    

200 μg/ml

1.57 ± 0.09

1.77 ± 0.09

119

164

500 μg/ml

0.84 ± 0.08

1.07 ± 0.04

84

101

1000 μg/ml

0.58 ± 0.06

0.73 ± 0.01

66

79

  1. R6/T24 is a permanent cell line transformed by an activated human c-H-ras oncogene. Both normal and H-ras transformed Rat 6 cells were seeded in triplicate at 104 cells per 60 mm plate in D10CS. Next day, cultured were switched to D5FCS, or FCS plus herbal extracts at designated dosages for 5 days. At the end of the treatment, cells were trypsinized and counted by Coulter Counter. Cytotoxicity was expressed as percent of cell survival compared to the untreated control.