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In vitro cellular uptake of DPC@Cel micelles in RAW264.7 cells. (A) The result of concentration dependence study. (B) The result of time dependence study. (C) Representative fluorescence images of RAW264.7 with or without LPS pretreatment which were incubated with free Cel or DPC for 2 and 4 h, respectively. Scale bar = 200 μm. (D) The result of the cellular uptake incubated with DPC@Cel micelles for 4 h in the presence and absence of MMP-2.
