Figure 1.
Flavonoid glycosides (PJs) structure and cell proliferation assay. (A) Chemical structure of isolated PJ compounds, R=H, R1 = β-D-glucopyranoside, R2 =OH — (PJ1), R=H, R1 = β-D-glucopyranoside, R2 =H — (PJ-5), R=H, R1 = β-D-xylopyranoside, R2 = OH —(PJ-8) and R= β-D-glucopyranoside, R1 =H, R2 =OH — (PJ-9). (B) Representative cell images reveal the cell viability of A549 cells that were pre-treated with indicated qurictine glycosides (PJ-1, PJ-5, PJ-8, and PJ-9) in comparison with DMSO-treated cells and non-treated cells (NT). (C–F) Calculated CC50-dependent cell viability rate of purified PJs on normal epithelial cells, HEL299 cells, and A549 cells that were pre-treated with different concentrations (0–1.5 mg/ml) of each PJ product using WST-1 assay.