PPBP and neoplasm: Nese Unver et al. found that CXCL1, CXCL5, CXCL7 and CXCL8 were the main angiogenic CXC chemokines in non small cell lung cancer (NSCLC), which can make immune cells including neutrophils and macrophages tumor-infiltrating to support the development of tumor [22].