Retraction.

Retraction: "Effects of IGFBP3 gene silencing mediated inhibition of ERK/MAPK signaling pathway on proliferation, apoptosis, autophagy, and cell senescence in rats nucleus pulposus cells," by Gang Chen, Xiaopeng Zhou, and Zhengkuan Xu, J Cell Physiol. 2019; 9308-9315: The above article, published online on 28 October 2018 in Wiley Online Library (https://onlinelibrary.wiley.com/doi/full/10.1002/jcp.27613), and a corrsponding Erratum, published online on 6 May 2019 (https://doi.org/10.1002/jcp.28675) have been retracted by agreement between the authors, the journal's Editor in Chief, Prof. Dr. Gregg Fields, and Wiley Periodicals LLC. The retraction has been agreed after the authors stated that the experimental data in the article could not be verified. The investigation additionally revealed duplication in several image elements. Thus, the editors consider the conclusions of this article to be invalid. The authors were not available for a final confirmation of the retraction.