Figure 6

Confocal microscopy images of different cells. ASGPR-positive cells HepG2 (A) and SMMC7721 (B), and ASGPR-negative cells NIH 3T3 (C) incubated with Lac-MSNs (1), MSNs (2), and excess free lactose with Lac-MSNs (3) for 4 h at 37°C. Cell nuclei were stained blue with DAPI, filamentous actin cytoskeletons were stained red with rhodamine phalloidin, and FITC was shown as green fluorescence.