Model describing the effect of CUL5 on the sensitivity of bladder cancer cells to CD8+ T cell-mediated killing. CUL5-KO could reduce the ubiquitination of PTBP1, thereby increasing the alternative splicing of RUBCN pre-mRNA, leading to an increase in Rubicon-S which inhibits autophagy, and thus enhances the sensitivity of bladder cancer cells to CD8+ T cell-mediated killing (cartoon created in BioRender).
CD8+ T cells can target & eliminate malignant #tumor cells, but tumors can develop resistance mechanisms to escape them. This study shows that loss of the E3 #ubiquitin ligase CUL5 enhances CD8+ #Tcell #cytotoxicity & anti PD-1 efficacy by inhibiting #autophagy @plosbiology.org 🧪 plos.io/3Mv1EuR