RAF1 and central nervous system cancer: Previous studies have demonstrated that LRRC4, a regulator of miR-182 and miR-381, can inhibit glioma tumorigenicity by modulating receptor tyrosine kinase (RTK) signaling pathways, such as the K-Ras/p-c-Raf/ERK/MAPK and PI-3K/AKT signaling pathways[4], [6].