Fig. 7

Cytotoxic and phagocytosis activities of HMF-treated RAW264.7 cells. RAW264.7 cells were first treated with HMF (15.6–125 μg/mL) for 24 h, then lung cancer NCI-H460 (a) and NCI-H292 (b) cells were added. Then, MTT assay was performed, * P < 0.05, ** P < 0.01 versus the lung cancer cells alone group. c HMF promotes the phagocytosis of RAW264.7 cells. After treated with HMF (15.6–125 μg/mL) for 24 h, the medium was replaced with neutral red physiological saline. The plates were washed and pyrolysis liquid was added. The absorbance at 570 nm was measured. * P < 0.05, ** P < 0.01 versus the control group