To test this, we used a novel, specific inhibitor of IL-1ß signaling called isunakinra and cancer cell lines stably expressing a NF-?B reporter bioluminescent plasmid, in both in vitro and in vivo assays...Similar results were also obtained using the flank tumor model, in which the drug was effective in reducing primary tumor volume and occurrence of pulmonary metastases. Collectively, our results show that IL-1ß inhibition may constitute a novel therapeutic strategy to target KRAS-mutant tumors.