SREBP1 siRNA (sc-36557) was purchased from Santa Cruz Biotechnology. The procedures used for transfection, as well as the details of the scrambled control, FBXW7 and GSK3 siRNAs, were described previously16 (link). Lentiviral SREBP1 and FBXW7 shRNAs were generously provided by Dr. Deliang Guo (The Ohio State Medical Center, Columbus, OH)28 (link) and Dr. Wenyi Wei (Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA)29 (link), respectively.