异质性胞核核糖核蛋白K与肿瘤研究的最新进展

摘要

Over the past few decades, the classification of oncogenes or tumor suppressor genes has been an important topic in cancer biology. However,it is difficult to classify some genes. Heterogeneous nuclear ribonucleoprotein K(HNRNPK)is a nucleic acid-binding protein,which is involved in the regulation of gene expression,signal transduction and many other cellular processes. In recent years, it has been found that HNRNPK is overexpressed in many types of tumors,and its overexpression is negatively correlated with the prognosis of patients,suggesting that HNRNPK may play a role as an oncogene in tumorigenesis. In contrast,however,HNRNPK has also been considered as a tumor suppressor gene in acute myeloid leukemia(AML). Therefore, in this article we summarize and discuss the recent progress in the molecular functions and regulatory mechanisms of HNRNPK in tumorigenesis and progression.%近几十年来,癌基因和抑癌基因一直是肿瘤生物学中的一个重要分类,然而对于一些基因却很难将其归类.异质性胞核核糖核蛋白K(heterogeneous nuclear ribonucleoprotein K,HNRNPK)是一个核酸结合蛋白,参与了基因表达调控、信号转导等很多细胞进程.近些年发现HNRNPK在多种肿瘤中过表达,且其过表达与患者的预后呈负相关,提示其可能在这些肿瘤中发挥癌基因的功能.然而,在急性髓系白血病(acute myeloid leukemia, AML)的研究报道中发现HNRNPK可能扮演抑癌基因的角色.因此,本文对HNRNPK在肿瘤发生发展中的分子功能及作用机制的最新进展进行综述.