Figure 3. NTP treatment decreased NF-κB activity in an IκB-independent manner.
(a) Duplicated set of cells were treated with TNFα and IFNγ (20 ng/ml each), NTP for 5 min as indicated. After 6 h and 24 h after the treatment, each set of cells were harvested and subjected to Western Blot and RT-PCR assay respectively. The data shown are representative of 4 independent experiments. (b) The relative activities of IκB and NF-κB were calculated by measuring the density of each band (total and phosphorylated IκB, p65/RelA) using the Image J analysis program (n = 4), *p < 0.05. TI: TNFα and IFNγ (c) A schematic diagram describing the NTP-mediated p65/RelA regulation.