03 April 2015
Vol 348, Issue 6230

About The Cover

Cover image expansion

COVER Cancer immunotherapy harnesses the power of the immune system to kill tumors. These therapies aim to activate and expand T cells, such as those shown in blue, to specifically kill tumors (black). Current approaches include antibodies targeting inhibitory proteins on T cells, adoptive T cell therapy, and tumor vaccines, among others. See page 54.
Illustration: Valerie Altounian/Science