Scientists reveal why common pancreatic precancer lesions rarely turn deadly

Spatial and single-cell analyses of human donor pancreata showed that PanIN epithelial cells gradually acquire cancer-like molecular features, while their surrounding stromal and immune environment remains closer to normal pancreatic tissue. The findings suggest that delayed or incomplete microenvironmental reprogramming may help explain why most PanIN lesions remain indolent rather than progressing to pancreatic cancer.