宫颈癌免疫逃逸的相关机制
2015-03-21张慧杰张淑兰
张慧杰,张淑兰
·综述·
宫颈癌免疫逃逸的相关机制
张慧杰,张淑兰△
宫颈癌是最常见的妇科恶性肿瘤。宫颈癌在形成、发展及外侵和转移过程中可以通过多种途径使机体细胞免疫和体液免疫功能下降、肿瘤细胞所处的免疫微环境发生变化而逃避机体免疫系统的监视。其中T淋巴细胞、树突细胞、自然杀伤细胞以及与巨噬细胞等有着双向作用的免疫细胞,在宫颈癌的免疫逃逸中起着非常关键的作用。综述宫颈癌免疫逃逸与免疫细胞之间的关系,深刻认识宫颈癌免疫逃逸机制,指导宫颈癌治疗理论研究,有助于宫颈癌防治研究的深入。
T淋巴细胞;树突细胞;杀伤细胞,天然;巨噬细胞;宫颈肿瘤;肿瘤逃逸
【Abstract】Cervical cancer is the most common form of malignant gynecologic tumor.Cervical cancer in the process which are in the formation,development,invade,metastasis present can adopt different mechanisms to impair body′cellular and humoral immune function,and also change carcinoma cellular immunomicroenvironment,these changes can avoid body immune system′s attacks.Immune cells,such as T lymphocytes,dendritic cells,NK cells and macrophages play a dual role in the immune escape of cervical cancer.This article focuses on the relationship between the immune escape of cervical cancer and the immune cells reviewed.Understanding the immune evasion mechanisms used by cervical cancer will benefit the design of new therapeutic strategies for cervical cancer.A better understanding of the underlying mechanism will lead to more effective immunotherapy study.
【Keywords】T-lymphocytes;Dendritic cells;Killer cells,natural;Macrophages;Uterine cervical neoplasms;Tumor escape
(J Int Obstet Gynecol,2015,42:87-90)
宫颈癌是最常见的妇科恶性肿瘤之一,全世界每年新确诊的宫颈癌患者约有47万例,其中约23万例死于宫颈癌。许多医疗机构将对宫颈癌根治术后患者实行新辅助化疗作为常规治疗[1]。但仍有相当一部分患者存在复发和远处转移。纠其原因,部分是因为肿瘤在发生、发展过程中演化出逃避免疫监视的方式,导致宿主不能有效清除肿瘤。免疫监视学说是由Burnet于1967年正式提出的,这个学说认为机体免疫系统是通过细胞免疫机制来识别并特异地杀伤突变细胞,但当机体免疫监视功能不能清除突变细胞时,则可形成肿瘤。机体抗肿瘤的免疫主要是细胞免疫。参与免疫监视作用的效应细胞主要有T淋巴细胞、树突细胞(dendritic cells,DCs)、自然杀伤(NK)细胞和巨噬细胞。……
