Retraction Note to: Circ-DENND4C up-regulates TCF4 expression to modulate hepatocellular carcinoma cell proliferation and apoptosis via activating Wnt/β-catenin signal pathway

Retraction Note: Cancer Cell Int (2020) 20:295 10.1186/s12935-020-01346-0

The authors have retracted this article because they found that, in repeated experiments, the results could not be reproduced. The authors believe that this may be due to a potential contamination of the HepG2 liver cancer cell line with T24 bladder cancer cell line. The data reported in this article are therefore unreliable.

All authors agree to this retraction.