Retraction Note: Exosome circRNA secreted from adipocytes promotes the growth of hepatocellular carcinoma by targeting deubiquitination-related USP7

Retraction to: Oncogene 10.1038/s41388-018-0619-z, published online 13 December 2018

The Editors-in-Chief have retracted this article. After publication, concerns were raised regarding the figures presented in this article. Specifically:

• Two exosomes in Fig. 1A appear highly similar to those in Fig. 4A.

• A number of features in Fig. 9B appear highly similar to Fig. 2A in [1] (now retracted).

• In Fig. 9h, two tumours in the middle lane (right and left) appear to share an overlapping area.

• A number of western blots across the figures have blank or inconsistent backgrounds.

The authors have provided the original data to address these concerns. However, the images provided did not sufficiently resolve the issues raised by the readers and the publisher. The Editors-in-Chief, therefore, no longer have confidence in the presented data.

The first author has not explicitly stated whether they agree to this retraction. None of the other co-authors have responded to any correspondence from the editor or publisher about this retraction.