Research Article
TGF-β1 Induces the Dual Regulation of Hepatic Progenitor Cells with Both Anti- and Proliver Fibrosis
Figure 3
Influence of preexposure of HPCs to TGF-β1 for different periods of time on the activation of HPCs. The expression levels of α-SMA and TIMP-1 were measured by western blot (a). Quantification of the expression levels after normalization is shown in the lower panel (b). All data are expressed as the mean ± SD from three independent experiments.
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