Fig. 4From: Functional oral nanoparticles for delivering silibinin and cryptotanshinone against breast cancer lung metastasisa Cytotoxicity effects on 4T1 cells treated with S-W-LPNs, C-W-LPNs and S/C-W-LPNs. b–f 4T1 cell metastasis inhibition assay. b–d Semiquantitative analysis; b Cell migration in wound healing assay. c Transwell assay. d Matrigel invasion assay (mean ± SD, n = 3). e Hematoxylin-eosin-staining images of Transwell migration assay. f Hematoxylin-eosin-staining images of Matrigel invasion assay. *P < 0.05, **P < 0.01, ***P < 0.001Back to article page