IL1A and breast cancer: It was also showed that disseminated breast cancer cells evoke phenotypic changes in lung fibroblasts, forming a metastatic niche, and that the disruption of the intercellular JNK-IL-1-CXCL signaling, reduced metastatic colonization, confirming an essential role of the crosstalk between breast cancer cells and their fibroblast niche in the progression of metastasis [36].