Sirt1 is a direct target of miR-133b in HCC.
miR-133b over-expression suppresses HCC progression in vitro and in vivo.
Sirt1 restoration reverses the effect of miR-133b over-expression on HCC cells.
GPC3 down-regulation reverses the effect of Sirt1 up-regulation on HCC cells.
Sirt1 activates Wnt β-catenin signaling by GPC3 in vitro.