Brilliant black BN (E151) inhibits the interaction between EV71 and its cellular uncoating factor cyclophilin A .
Brilliant black BN (E151) inhibited the infection EV71 -GFP at a concentration of 300 µM as evidenced from the reduced GFP signals. Brilliant black BN (E151)exhibits the inhibition of EV71 -GFP as a dose-dependent manner in infected RD cells, exhibits an IC50 value of 10.1 µM.
Brilliant black BN (E151) is able to inhibit all tested 28 EV71, CVA16 and CVA6 strains. In rhabdomyosarcoma cells, 50% inhibitory concentration 29 of the dye E151 for various strains of EV71 ranged from 2.39 µM to 28.12 µM ,whereas its 50% cytotoxic concentration is 1870 µM .