852-Overcoming T Cell Tolerance

This research article describes a novel "TCR turbocharging" pipeline designed to enhance the effectiveness of T cell receptors used in cancer immunotherapy. Scientists focused on a specific receptor, TCR156, which targets a prostate cancer antigen but naturally lacks the strength to eliminate tumors due to immune tolerance. By engineering specialized interactions called catch bonds, which strengthen under mechanical force, the researchers created variants like S32Mα that exhibit significantly higher potency. These modified T cells demonstrated a superior ability to shrink tumors in animal models without increasing the risk of dangerous off-target reactions. Ultimately, the study provides a biophysical blueprint for transforming weak, naturally occurring immune cells into powerful therapeutic tools for treating malignancies.References: Chen X, Mao Z, Kolawole E M, et al. Overcoming T cell tolerance to tumor self-antigens through catch-bond engineering[J]. Science, 2026, 391(6791): eadx3162.前往小宇宙评论区与主播互动