胃癌是世界上癌症相关性死亡的第二大因素,极大地危害人类的健康,尽管手术是治疗胃癌的有效手段,但因早期症状不明显缺乏特异性的初筛指标,大多数患者确诊时已处于中晚期,不可切除,术后胃癌复发转移发生率是60%[1]。全身化疗是不可切除和复发转移胃癌的主要治疗手段,但目前对晚期胃癌尚 Gastric cancer is the second most important cause of cancer-related death in the world, which greatly endangers human health. Although surgery is an effective treatment for gastric cancer, it is not obvious because early symptoms are not obviously specific to primary screening. Most of the patients have been diagnosed In the middle and late, unresectable, postoperative recurrence and metastasis of gastric cancer incidence was 60% [1]. Systemic chemotherapy is the main treatment of unresectable and recurrent gastric cancer, but the current advanced gastric cancer is still