Molecular and Cellular Pathobiology STAT1 Drives Tumor Progression in Serous Papillary Endometrial Cancer Budiman Kharma1, Tsukasa Baba1, Noriomi Matsumura1, Hyun Sook Kang1, Junzo Hamanishi1, Ryusuke Murakami 1, Melissa M. McConechy2, Samuel Leung3, Ken Yamaguchi1, Yuko Hosoe , Yumiko Yoshioka1, Susan K. Murphy4, Masaki Mandai5, David G. Hunstman2,3, and Ikuo Konishi1.