Cancer Phototherapy The endoplasmic reticulum (ER) plays an important role in protein synthesis, processing and secretion. ER-targeting phototherapy significantly amplifies ER stress, promotes tumor antigen release, elicits a robust immunogenic cell death. In article number 2202728 by Weidong Wang, Junping Shenglin Luo, co-workers, small molecular heptamethine cyanine photosensitizer with binit...