PGG Enhances Olaparib Efficacy via cGAS-STING Signaling and Sensitizes Triple-Negative Breast Cancer to PD- L1 Blockade
han Si Liu, Xuan Li, chen Xiao Yang, ling Mei xiao, cheng Tian Fan, Jie Yu, Jie Zeng
This study shows PGG enhances olaparib efficacy in TNBC by inducing HRD and activates cGAS-STING to sensitize tumors to PD-L1 blockade, converting 'cold' to 'hot' tumors.
bioRxiv · Sep 28, 2026 · PreprintBiochemistry