Fig. 1.
rhLf inhibits human lung cancer cell growth. A 549 cells were cultured in the presence of rhLf at indicated concentrations for 24 h (A) or 72 h (B) and the number of live cells was quantified by a WST assay. The results were calculated as a percentage of the control cells and expressed as mean ± S.D. of n = 6. *p < 0.05 compared to the control (0). Visualization of the effect of rhLf on cancer cell growth and morphology (C). Representative phase-contrast cell images are shown after 24 h of treatment (100 × magnification)
