In the article “Mithramycin Is a Gene-Selective Sp1 Inhibitor That Identifies a Biological Intersection between Cancer and Neurodegeneration” by Sama F. Sleiman, Brett C. Langley, Manuela Basso, Jill Berlin, Li Xia, Jimmy B. Payappilly, Madan K. Kharel, Hengchang Guo, J. Lawrence Marsh, Leslie Michels Thompson, Lata Mahishi, Preeti Ahuja, W. Robb MacLellan, Daniel H. Geschwind, Giovanni Coppola, Jürgen Rohr, and Rajiv R. Ratan, which appeared on pages 6858–6870 of the May 4, 2011 issue, the authors regret that NIH Grant Number P01 NIA AG 014930, Project 1 to R.R.R. was omitted from the acknowledgments.