Retraction: “Combined therapy using LHRH‐PE40 and anti‐CD40 dendritic cells substantially eliminate tumor cells” by Limin Zhang, TianJiao Du, DongBin Ma, Fang Guo, ZhenWei Li, and Hua Yan, J Cell Biochem. 2019; 8093‐8100. The above article, published online on 28 November 2018 in Wiley Online Library (doi:10.1002/jcb.28088), has been retracted by agreement between the authors, the journal's Editor in Chief, Prof. Dr. Christian Behl, and Wiley Periodicals LLC.The retraction has been agreed after the authors stated that unintentional errors occurred during the research process, and the experimental results cannot be verified. Thus, the conclusions are considered to be invalid.