MTH1（mutT homolog1）是 MutT 的同源酶，是一种核苷酸焦磷酸酶，主要参与 DNA 损伤修复过程，尤其在肿瘤细胞的 DNA 复制过程中发挥着重要角色。最新的研究表明， MTH1可以清除肿瘤细胞中受损 DNA 功能结构的氧化构件，使得肿瘤细胞继续分裂与增殖，从而维持肿瘤细胞的生存，而更为重要的是正常细胞不需要 MTH1，因此，MTH1有可能只与异常的细胞生长密切相关，这使得 MTH1作为治疗靶点成为人们关注的焦点。该文着重对 MTH1与肿瘤关系最新的研究成果进行综述，探讨 MTH1维持肿瘤生长的相关机制及其与肿瘤治疗的关系，为靶向 MTH1治疗肿瘤提供新的思路，为肿瘤研究工作者提供重要参考。%MTH1 (MutT Homolog1 )as MutT homologous en-zyme,is a nucleotide pyrophosphatase,mainly involved in DNA damage repair process,especially plays an important role in the process of DNA replication in tumor cells.Recent studies have found that MTH1’s function is responsible for the development of a variety of tumors.Studies have shown that,MTH1 can remove tumor cells’oxidative DNA elements detrimental to the function-al structure,protecting tumor cell division and proliferation, maintaining tumor cell survival,however,normal cells do not need MTH1.Therefore,MTH1 may be only closely associated with abnormal cell growth.This makes MTH1 as therapeutic tar-gets that have been paid much attention.This article reviewed the relationship of MTH1 and tumor,discussed the mechanisms of MTH1 in tumor growth MTH1 and tumor treatment,so as to provide reference for clinical research and treatment of tumor.
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