CST1基因在肿瘤中的研究进展

摘要

半胱氨酸蛋白酶抑制剂(Cystatin,CST)是对半胱氨酸蛋白酶具有抑制作用的一类蛋白质,广泛分布于人体体液和分泌液中.目前研究表明CST超家族与肿瘤之间具有密切联系,其中,半胱氨酸蛋白酶抑制剂SN(Cystatin SN)为CST1基因所表达的产物,在多种肿瘤中表达异常.但其对肿瘤的发生发展以及侵袭转移等作用的具体机制目前尚不明确.本文通过对近年来国内外相关文献进行回顾性分析,对CST1基因在肿瘤中的研究进展做一综述.%Cystatin Cystatin(CST)is a class of proteins that inhibit cysteine proteases and are widely distributed in human body fluid and secretion.The present study shows that the CST superfamily is closely related to the tumor,in which the cysteine protease inhibitor SN is the product expressed by the CST1 gene and is abnormal expression in various tumors.However,its occurrence and development of tumor as well as effects of invasion and metastasis on the specific mechanism is not yet clear.In this paper,we retrospectively analyze the related studies in recent years and review the progress of CST1 gene in tumor.