摘要
微小RNA（miRNA）的发现为食管癌的诊断和治疗开辟了新的思路.let-7是目前研究最为广泛的miRNA之一,在多种肿瘤中表达下调.let-7能够靶向高迁移率蛋白A2 （HMGA2）从而抑制细胞增殖,发挥抑癌基因的作用.研究发现分化程度越低的细胞,let-7表达水平越低,其有望作为低分化肿瘤的标志.此外,let-7与食管癌放化疗敏感性也密切相关.
The discovery of microRNA （miRNA） has opened up a new train of thought for the diagnosis and treatment of esophagus cancer.let-7 is one of the most widely research of miRNA.In a variety of tumors,the expression of let-7 is down-regulated.let-7 can play the role of tumor suppressor gene by targeting to high mobility group A2 （HMGA2） and inhibit the cell proliferation.Recent studies have shown that the lower the degree of differentiation of cells,let-7 expression level is lower.It is expected as a symbol of poorly differentiated tumors.In addition,let-7 and esophagus cancer＇s radiation and chemotherapy sensitivity are closely related.
出处
《国际肿瘤学杂志》
CAS
2017年第2期145-147,共3页
Journal of International Oncology
