Phosphatidylinositol 3-Kinase (PI3K) Signaling via Glycogen Synthase Kinase-3 (Gsk-3) Regulates DNA Methylation of Imprinted Loci - Anthony P. Popkie; Leigh C. Zeidner; Ashley M. Albrecht; Anthony D’Ippolito; Sigrid Eckardt; David Newsom; Joanna Groden; Bradley W. Doble; Bruce J. Aronow; K. John McLaughlin; Peter White; Christopher J. Phiel (2010)