长链非编码 RNA 与肿瘤耐药性的研究进展

摘要

化学药物治疗（简称化疗）是癌症患者的主要治疗方法之一，但肿瘤的多药耐药（ Multidrug resistance，MDR）是限制目前肿瘤化疗方案疗效的基本问题，其耐药机制至今尚未被完全阐明。 lncRNAs可通过表观修饰、转录、转录后加工等多种途径调节基因表达。近期研究表明，lncRNAs对靶基因的异常调控与肿瘤耐药密切相关。因此，lncRNAs有望成为提高肿瘤的化疗敏感性，逆转化疗耐药的新靶点。本文就近年来lncRNAs与肿瘤耐药关系及调控机制的研究进展做一综述。%Chemotherapy is one of the primary treatments for cancer patients,while tumor multidrug re-sistance( MDR) represents a major obstacle in the treatments of patients,limiting the efficacy of chemotherapy.To date,the mechanism of drug resistance has not been fully elucidated.lncRNAs are a family of long noncoding RNAs that regulate gene expression by epigenetic modification,transcription and post transcriptional processing. Recent studies have showed that the aberrant regulation of target genes by lncRNAs may be involved in the acqui-sition of tumor MDR.Therefore,targeting lncRNAs may be an attractive strategy for improving the chemosentivity and reversing chemotherapeutic resistance.This paper reviews the relationship between lncRNAs and tumor drug resistance as well as the underlying possible mechanism.