It is a key task for cancer research to search novel prognostic marker, improve early diagnostic rate, and new target of molecular targeted therapy of gastric cancer.

因此提高胃癌的早期诊断率、寻找新的治疗靶点及预后指标，是当前肿瘤研究的重要课题。

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KRAS mutation frequency in tumor tissue, can be predicted non-small cell lung cancer molecular targeted therapy efficacy and prognosis, and molecular inhibitors of RAS genes is still in its infancy.

KRAS基因突变在恶性肿瘤组织中频发，可预测非小细胞肺癌分子靶向治疗的疗效和预后，针对RAS基因的分子抑制剂研究仍处于初级阶段。

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The systemic therapy of non-small cell lung cancer (NSCLC) is moving away from the "one-size fits all" empiric chemotherapy to targeted therapy of specific molecular alternations.

非小细胞肺癌的系统治疗已经由“一刀切”的经典化疗转变为针对特异分子改变的靶向治疗。

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