摘要
微小RNA(miRNA)是一系列在植物、动物及病毒中都可发现的非编码RNA,在转录后水平调控基因表达。miRNA-155(miR-155)是一种表达在造血细胞的miRNA,通过转录后调控靶基因的表达参与恶性血液病的发病机制。近来研究表明,miR-155通过影响参与细胞增殖、分化、凋亡的细胞信号转导途径,作为癌基因在恶性血液病的发生发展中起到重要作用。miR-155对恶性淋巴瘤、急性髓系白血病及骨髓增生异常综合征等恶性血液病的诊断治疗、预后具有重要临床意义。把能够下调miR-155表达的药物如反义寡核苷酸与经典的细胞毒性治疗联合应用,可有效控制恶性血液病的发展。本文综述了近年来miR-155对恶性血液病发病机制作用的研究进展并对其潜在的治疗靶点作用进行了展望。
MicroRNA（miRNA） are small non-coding RNA that act at the post-transcriptional level, regulating pro tein expression by repressing translation mRNA target. They can be detected in plants, animal species and viruses, and are involved in numerous cellular processes. MicroRNA-155 （ miR-155 ） which is a kind of microRNAs expressed in hematopoietic cells. Recent data indicate that MiR-155 plays a key role in the pathogenesis of hematological malignancies through regulating cell signal transduction pathways of cell proliferation, differentiation and apoptosis, acting predomi- nantly as an oncomir. MiR-155 may be an important indicator to assess the diagnosis, treatment and prognosis of patients with hematological malignancies, including malignant lymphoma, acute myeloid leukemia, and myelodysplastic syn- drome. It could be suggested that drugs such as antisense oligonucleotides able to down-regulate miR-155 expression would provide a novel, and possibly specific way to control the growth of a range of haematopoietic malignancies in conjunction with classical cytotoxic therapy. The purpose of this review is to summarize current findings on the role of miR- 155 in hematopoietic malignancies and, moreover, to highlight their role as potential therapeutic tools.
出处
《中国实验血液学杂志》
CAS
CSCD
北大核心
2013年第3期810-814,共5页
Journal of Experimental Hematology
