Research Article

Differential Effects of Angelicin Analogues on NF-κB Activity and IL-8 Gene Expression in Cystic Fibrosis IB3-1 Cells

Table 3

Results of RT-qPCR analysis reporting the % inhibition of IL-8 mRNA in TNF-α-induced IB3-1 cells cultured with 1 μM and 10 μM concentrations of TMA derivatives.

Derivative1 μM (% inhibition)10 μM (% inhibition)Inhibition of NF-κB/DNA complex (MIC) μM

15756<12.5 ()
5333112.5–25
8515225–50
120na12.5
16182125–50
233112–505
25nana50–100
26558350–100
2716na<12.5 ()
28213612.5–25
29na12<12.5 ()
3010na12.5–25
31nana12.5
327352<12.5 ()
33686712.5–25
346647<12.5 ()
35563725–50
36777412.5–25
37nana12.5–25
38368125

na: not active at the used concentrations; MIC: minimal inhibitory concentration. In the EMSA experiments, 12.5 μM was the minor concentration used.