Retraction Note: Stem Cell Research & Therapy (2015) 6:65 https://doi.org/10.1186/s13287-015-0060-y

The Editors-in-Chief have retracted this article. Concerns were raised about image overlap in Fig. 2A between NS + PBS/3 day and NS + PBS/14 day, and between LPS + mMSCs-Ctnnb1/3 day and LPS + mMSCs control/7 day. In response to these concerns, the authors provided original images, which contained further cases of overlap and duplication among images representing different samples. The Editors-in-Chief therefore no longer have confidence in the integrity of the data and results of this article.

All authors agree to this retraction.