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. 2021 Nov 9;26(22):6757. doi: 10.3390/molecules26226757

Figure 2.

Figure 2

Effect of PSO and RA-RF on A549 cell viability. The cells were pre-incubated with PSO (A) or RA-RF (B) for 2 h and then treated with or without 100 ng/mL of TNF-α for 24 h. All assays were performed in triplicate; the data are presented as mean ± standard deviation. Morphology of A549 cells treated with 0.5% DMSO, 100 ng/mL of TNF-α, PSO (400 µg/mL) + TNF-α (100 ng/mL), and RA-RF (40 µg/mL) + TNF-α (100 ng/mL) (C) observed under inverted phase contrast microscopy (100× total magnification).