Tumor‐Derived LAMB3 Drives Immunosuppressive LRRC15+ Fibroblast Formation During Pancreatic Ductal Adenocarcinoma Development. - Shi, Xuqing; Liu, Hangqi; Sun, Jianru; Liu, Xiaoding; Jv, Xinping; Chen, Longyun; Zhang, Yuhan; Zhang, Hui; Xing, Xudong; Li, Ruiyu; Ke, Xinyi; Wang, Jun; et al. (Advanced Science, 2026)