Table 1 EC50 values of carolacton on human cancer cell lines

From: The natural product carolacton inhibits folate-dependent C1 metabolism by targeting FolD/MTHFD

Cell line

EC50 (µM)

Maximum inhibition

HCT-116

24.6 ± 0.8

>80%

KB-3.1

11.3 ± 3.6

>80%

KB-V.1

41.8 ± 14.5

>80%

U-937

>100

n.a.

U-937 (folate-depleted)

41.7 ± 15.2

65–75%