Cancer Cells Induce T-Cell Dysfunction Through Mitochondrial Transfer
Major Finding: Cancer cells transfer mitophagy-resistant mitochondria to tumor-infiltrating lymphocytes (TIL) that impair antitumor activity. Concept: Deubiquitinase USP30 protects cancer cell-derived mitochondria from ROS-induced mitophagy in TILs.Impact: Inhibiting mitochondrial transfer may improve responses to immune checkpoint inhibitors in certain cancers.