NF-κB-IN-1, a 4-arylidene crucumin analogue, is a potent NF-κB signaling pathway inhibitor. NF-κB-IN-1 directly inhibits IKK to block NF-κB activation. NF-κB-IN-1 effectively inhibits the viability of lung cancer cells and attenuates the clonogenic activity of A549 cells.IC50 & Target: IKKIn Vitro: NF-κB-IN-1 (compound 17) (0.001-100 μM; 72 h) inhibits the growth of A549, H1944, H460 and H157 cells, with GI50s of 0.72, 0.07, 0.13, and 0.16 μM, respectively.
NF-κB-IN-1 (0.5-25 μM; pretreated for 30 min or 4 h) potently blocks the IκB phosphorylation and degradation in A549 cells.
NF-κB-IN-1 (0.1-100 μM; pretreated for 30 min) dose-dependently inhibits the TNFα-induced nuclear translocation of NF-κB in A549 cells, with an IC50s of 1.0 μM.
NF-κB-IN-1 (0.1-0.4 μM; 9 d) inhibits lung cancer clonogenic activity.