The former and current Publishers and the Editor are jointly issuing an Expression of Concern on the article entitled

“Down-Regulation of MiR-150 Alleviates Inflammatory Injury Induced by Interleukin 1 via Targeting Kruppel-Like Factor 2 in Human Chondrogenic Cells”
[Cell Physiol Biochem 2018;47:2579-2588. DOI: 10.1159/000491654]
by Xirui Yang, Qi Zhang, Zhaomeng Gao, Chunyan Yu and Lei Zhang.

After the publication of this article, concerns were raised about the integrity of some of the data presented. The authors responded to our request for the raw data however additional concerns were identified in the raw data regarding the similarity of values obtained across different experiments. The authors have confirmed the data are genuine and the similarity is due to rounding. Review by a member of our Editorial Boards regarded this as an improbable explanation given the similarity of the values. We were unsuccessful in our attempts to contact the author's institution thus readers should thus interpret the data presented in the article with caution. Appropriate editorial action will be taken once the investigation is concluded.