Lung cancer is categorized into two types; non-small cell lung cancer (NSCLC) with the 80~85% frequency and small cell lung cancer with the 15~20% frequency. Epidermal growth factor receptor (EGFR) is expressed on the surface of epidermal ce...

KRAS mutation is found in several cancers such as colorectal, lung, thyroid, pancreatic, cholangiocarcinoma. The KRAS mutations are often found on codons 12 and 13 of the exon 2, and lead to abnormal change of growth signal of the p21-ras pr...

NRAS mutation is found in several cancers such as melanoma (13~25%), colorectal cancer (1~6%), lung cancer (1%), thyroid cancer (7%) and hepatocellular carcinoma (10%). It is know that the drug response against colorectal cancer medicine suc...

NRAS突变存在于多种癌症中，例如黑色素瘤（13％至25％），大肠癌（1％至6％），肺癌（1％），甲状腺癌（7％）和肝细胞癌（10％）。已知如果患者具有NRAS突变，则针对大肠癌药物如爱...