Nature Cancer, Published online: 03 April 2026; doi:10.1038/s43018-026-01141-2Li et al. present PRET, a few-shot system for pan-cancer detection not requiring model fine-tuning, validated it in multicenter datasets and found that it outperformed existing approaches across tasks and pathologists in lymph node metastasis detection.

An in vivo, noncanonical ferroptosis pathway, critical for tumor supression, is driven by reactive oxygen species-induced phosphatidic acid peroxidation at the ER under the control of the GPX1-OSBPL8 signaling axis.