Retraction statement: Wu, H., He, Y., Chen, H., Liu, Y., Wei, B., Chen, G., Lin, H. and Lin, H. (2019), LncRNA THOR increases osteosarcoma cell stemness and migration by enhancing SOX9 mRNA stability. FEBS Open Bio, 9: 781-790

https://doi.org/10.1002/2211-5463.12620 The above article, published online on 2 March 2019 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the Editor-in-Chief, FEBS Press, and John Wiley and Sons Ltd. The retraction has been agreed following an investigation into concerns raised by a third party, which revealed inappropriate duplications between this and another article [1]. Thus, the editors consider the conclusions of this manuscript substantially compromised. Reference 1 Shao L, Zhang X and Yao Q (2020) The F-box protein FBXO11 restrains hepatocellular carcinoma stemness via promotion of ubiquitin-mediated degradation of Snail. FEBS Open Bio 10, 1810-1820.doi: 10.1002/2211-5463.12933.