Research Article

PCSK9-D374Y Suppresses Hepatocyte Migration through Downregulating Free Cholesterol Efflux Rate and Activity of Extracellular Signal-Regulated Kinase

Figure 2

Cholesterol efflux assay in HepG2 cells. (a) Relationship between NBD-cholesterol incubation time and FI. (b) Relationship between HDL treatment time and cholesterol efflux. HDL concentration used in (a) and (b) is 10 μg/ml. (c) Relationship between HDL concentration and cholesterol efflux. HDL treatment time is 2 h. Wild-type HepG2 cells are used for (a)–(c). (d) Effect of PCSK9 overexpression on cholesterol labeling in HepG2 cells. NC: pcDNA3.1; D374Y: pcDNA3.1-PCSK9-D374Y; FI: fluorescence intensity. At least three independent experiments were conducted with triplicate items. Data is shown as mean with SEM. ns: not significant; ; ; or .
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