TGFB1 and non-small cell lung carcinoma: CircPTK2 functions as the miR-429/miR-200b3p sponge and reduced the expression of tumor-suppressor T1F1γ, consistent with this its overexpression in NSCLC cells augments T1F1γ expression and reduces TGF-β induced EMT (Wang L. et al., 2018).