A Bio-Guided Fractionation to Assess the Inhibitory Activity of Calendula officinalis L. on the NF-κB Driven Transcription in Human Gastric Epithelial Cells

Figure 4

Effect of fractions J.1–J.7 on the NF-κB driven transcription. AGS cells were transiently transfected with NF-κB-luc plasmid and treated with TNF-α in the presence of fractions (5 μg/mL) for 24 h. The NF-κB driven transcription was proportional to luciferase signal measured. , , and .