SRRM1 coordinates an alternative splicing program that promotes expression of oncogenic protein isoforms.
This study identifies SRRM1 as a key splicing regulator that, often in concert with SRSF11, drives the expression of oncogenic protein isoforms—including those of NUMB and other signaling or cytoskeletal genes—to promote tumor growth, proliferation, and stemness in multiple cancer types, thereby highlighting its potential as a therapeutic target.