The effect of glioma cells and microglia was also analyzed by Badie et al. [120], the deepening of hepatocyte growth factor/scatter factor (HGF/SF) made it clear how these factors plays a role in glioma motility and mitogenesis, may also act as a chemokine for microglia and may be responsible for the microglia infiltration in malignant gliomas. The gene discussed is HGF; the disease is central nervous system cancer.