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胃癌化疗耐药的分子机制

Molecular mechanisms of chemoresistance in gastric cancer.

作者信息

Shi Wen-Jia, Gao Jin-Bo

机构信息

Wen-Jia Shi, Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China.

出版信息

World J Gastrointest Oncol. 2016 Sep 15;8(9):673-81. doi: 10.4251/wjgo.v8.i9.673.

Abstract

Gastric cancer is the fourth most common cancer and the second leading cause of cancer deaths worldwide. Chemotherapy is one of the major treatments for gastric cancer, but drug resistance limits the effectiveness of chemotherapy, which results in treatment failure. Resistance to chemotherapy can be present intrinsically before the administration of chemotherapy or it can develop during chemotherapy. The mechanisms of chemotherapy resistance in gastric cancer are complex and multifactorial. A variety of factors have been demonstrated to be involved in chemoresistance, including the reduced intracellular concentrations of drugs, alterations in drug targets, the dysregulation of cell survival and death signaling pathways, and interactions between cancer cells and the tumor microenvironment. This review focuses on the molecular mechanisms of chemoresistance in gastric cancer and on recent studies that have sought to overcome the underlying mechanisms of chemoresistance.

摘要

胃癌是全球第四大常见癌症,也是癌症死亡的第二大主要原因。化疗是胃癌的主要治疗方法之一,但耐药性限制了化疗的效果,导致治疗失败。化疗耐药可在化疗前就固有存在,也可在化疗期间产生。胃癌化疗耐药的机制复杂且多因素。多种因素已被证明与化疗耐药有关,包括细胞内药物浓度降低、药物靶点改变、细胞存活和死亡信号通路失调以及癌细胞与肿瘤微环境之间的相互作用。本综述重点关注胃癌化疗耐药的分子机制以及近期旨在克服化疗耐药潜在机制的研究。

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