PHI-501 is a dual inhibitor targeting RAF/DDR. PHI-501 exhibits significant anti-proliferative effects in melanoma cell lines and significantly inhibits the colony formation of drug-resistant cells. PHI-501 strongly inhibits ERK and AKT phosphorylation. PHI-501 downregulates the gene sets in drug-resistant cells of TNFA-NFKB, IL6-JAK-STAT3, and KRAS signaling pathways as well as the epithelial-mesenchymal transition (EMT) signaling pathways. PHI-501 demonstrates significant anti-tumor effects in the SK-MEL3DR xenograft model. PHI-501 can be used for research on the problem of drug resistance in melanoma[1].
