<正>RAS/丝裂原激活蛋白激酶(RAS/mitogen-activited protein kinase,RAS/MAPK)信号通路参与调控细胞增殖、分化、存活、凋亡、免疫应答等行为,编码RAS/MAPK信号通路蛋白的基因发生突变,可引起RAS信号通路相关综合征(RASopathies)[1],