TGF-β1 induces the activation of FoxO1 and increases FoxO1 protein level.
TGF-β1 promotes cardiac fibroblasts differentiation into cardiac myofibroblasts.
FoxO1 silencing prevents TGF-β1-dependent cardiac fibroblast differentiation.
FoxO1 overexpression enhances TGF-β1-dependent cardiac fibroblast differentiation.