The MAPK cascade scaffolding protein IQGAP1, although dispensable for normal epithelial homeostasis, is required for RAS- and RAF-driven tumorigenesis in mouse tumor models. Accordingly, peptide-specific disruption of the interaction between IQGAP1 and ERK1/2 can bypass acquired resistance of vemurafenib-treated BRAF-mutant melanomas and extend the life span of tumor-bearing mice.
- Katherine L Jameson
- Pawel K Mazur
- Paul A Khavari
