CXCL2 and metastatic malignant neoplasm in the lymph nodes: In this work, lymph node metastasis in skin cutaneous melanoma was associated with CXCL2, in liver hepatocellular carcinoma with CXCL5, in kidney renal clear cell carcinoma with PPBP, and in esophageal carcinoma with CXCL8/IL-8.