CXCL8 and cancer: Conversely, Baj-Kryzworzeka et al. found that microvesicles from tumor cells carrying vascular endothelial growth factor (VEGF), hepatocyte growth factor (HGF), and interleukin-8 (IL-8) exert anti-apoptotic effects on monocytes, suggesting that these cancer-derived vesicles support macrophage survival [146].