COPA mutations reveal alternative trigger for small intestine tumors

MedicalXpress | июн 12, 2026

A signaling system known as the Wnt pathway plays a central role in how cells in the intestine grow, divide and renew themselves. Decades of research have shown that disruption of this pathway is a defining feature of many intestinal cancers. In particular, mutations in the APC gene—which normally acts as a brake on Wnt signaling—are widely recognized as a key initiating event in colorectal tumors.