Effects of 22-(4′-py)-JA
on tube formation in HUVECs. (A)
Schematic diagram demonstrates the parameters for tube formation analysis
(i.e., the number of nodes and fragments and their
length). HUVECs were treated with the medium obtained from (B) H460
cells and (C) A549 cells. After 24 h, tube formation was imaged, and
its parameters were quantified using ImageJ software. Plots present
the fold change of node number, fragment number, and fragment length.
Scale bar, 100 μm. Bar graphs showing the mRNA expression levels
of (D) Hif-1α and (E) Vegf in H460 and A549 cells incubated with or without a nontoxic dose
of of 22-(4′-py)-JA for 24 h. Data are presented as mean ±
SEM (n = 3). *p < 0.05 vs untreated control group. All data were analyzed by using
analysis of variance (ANOVA) followed by the Tukey post hoc test.