17 November 2015
Vol 8, Issue 403

About The Cover

Cover image expansion

Online Cover This week features a Research Article that describes how resistance to drugs targeting the PI3K-mTOR pathway arises specifically in prostate tumor luminal cells. The image shows staining for basal (green) and luminal (red) cells in mouse prostate tumor tissue. [Image: Lexiaochuan Wen, Helen Diller Family Cancer Center, University of California, San Francisco]