The role of activin A and Akt/GSK signaling in ovarian tumor biology. Related Articles The role of activin A and Akt/GSK signaling in ovarian tumor biology. Endocrinology. 2008 Aug;149(8):3809-16 Authors: Do TV, Kubba LA, Antenos M, Rademaker AW, Sturgis CD, Woodruff TKOriginal Article