We thank H. K. Sytwu (Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan) for providing the lentiviral plasmids for the lentivirus infection system, and Mien-Chie Hung (Department of Molecular and Cellular Oncology, Breast Cancer Basic Research Program, The University of Texas M. D. Anderson Cancer Center, Houston, Texas) for providing the pCMV-5A-GSK3β (WT, CA and KD form) plasmids, and Pei-Fang Hung, Shih-Han Kao, and Shuenn-Chen Yang for technical assistance. The gene discussed is GSK3B; the disease is neoplasm.