The Editor-in-Chief of DNA and Cell Biology officially retracts the article entitled, “Let-7a Functions as a Tumor Suppressor in Ewing's Sarcoma Cell Lines Partly by Targeting Cyclin-dependent Kinase 6,” by Zhongzu Zhang, Lu Huang, Zhiming Yu, Xiang Chen, Dong Yang, Ping Zhan, Min Dai, Shanhu Huang, Zhimin Han, and Kai Cao (DNA Cell Biol 33(3):136–147; doi: 10.1089/dna.2013.2179) after discovering alerts on the PubPeer platform1 regarding multiple image duplications between Figures 3, 6, and 7.
The journal publisher independently confirmed the suspected duplications.
The corresponding author of the paper, Dr. Kai Cao, along with all co-authors, were contacted for an explanation but no response was received.
DNA and Cell Biology is committed to upholding the rigors of scientific publishing and the veracity of the literature.