title: Role of microRNA in anticancer drug resistance.
abstract: Chemotherapy has been widely used in treatment of cancer, both as systemic therapy and as part of local treatment. Unfortunately, many kinds of cancer are still refractory to chemotherapy. The anticancer drug resistance mechanisms have been extensively explored, yet have not been fully characterized. Recent works have underlined the involvement of noncoding RNAs in cancer development, with several studies regarding their possible involvement in the evolution of drug resistance. MicroRNAs (miRNAs) are endogenous small noncoding RNAs (20-23 nucleotides) that negatively regulate the gene expressions at the post-transcriptional level by base pairing to the 3' untranslated region of target messenger RNAs. Evidence is emerging that particular microRNAs (miRNA) alterations are involved in the initiation and progression of human cancer. More recently, accumulating evidence is revealing an important role of miRNAs in anticancer drug resistance and miRNA expression profiling can be correlated with the development of anticancer drug resistance. The micro-RNA-mediated form of drug resistance adds yet another mechanism of drug resistance. So, exploiting the emerging knowledge of miRNAs for the development of new human therapeutic applications for overcoming anticancer drug resistance will be important.
authors.affiliation: Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
authors.forename: Tongsen
authors.initials: T
authors.lastname: Zheng
authors.forename: Jiabei
authors.initials: J
authors.lastname: Wang
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Lianxin
authors.initials: L
authors.lastname: Liu
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use; D019008:Drug Resistance, Neoplasm / Q000235:genetics*; D006801:Humans; D035683:MicroRNAs / Q000502:physiology*; D009369:Neoplasms / Q000188:drug therapy / Q000235:genetics
chemical_list: D000970:Antineoplastic Agents; D035683:MicroRNAs