Biology of HLA-G in cancer: a candidate molecule for therapeutic intervention?

Biology of HLA-G in cancer: a candidate molecule for therapeutic intervention?
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DOI:
10.1007/s00018-010-0583-4
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发表时间:
2011-02
影响因子:
8
通讯作者:
Seliger, Barbara
Seliger, Barbara
中科院分区:
生物学1区
文献类型:
--
作者:
Amiot, Laurence;Ferrone, Soldano;Grosse-Wilde, Hans;Seliger, Barbara

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尽管首次报道非经典HLA I类分子HLA-G的表达仅限于绒毛外细胞滋养层上的胎儿-母体界面,但HLA-G在正常组织中的分布似乎比最初描述的更广泛。HLA-G的表达被发现在胚胎组织中,在成人免疫特权器官,和造血谱系的细胞。更有趣的是,在病理生理条件下,HLA-G抗原可以在各种类型的恶性细胞上表达,这表明HLA-G抗原表达是肿瘤细胞逃避免疫监视的一种策略。在这篇文章中,我们将集中于HLA-G在不同组织学的癌症中的表达及其与疾病的临床过程的关联,关于受损的HLA-G表达的潜在分子机制,关于HLA-G在肿瘤中的免疫耐受功能,以及关于使用膜结合和可溶性HLA-G作为诊断或预后生物标志物来识别肿瘤和监测疾病阶段,以及HLA-G作为癌症中新的治疗靶点的用途。
Although the expression of the non-classical HLA class I molecule HLA-G was first reported to be restricted to the fetal–maternal interface on the extravillous cytotrophoblasts, the distribution of HLA-G in normal tissues appears broader than originally described. HLA-G expression was found in embryonic tissues, in adult immune privileged organs, and in cells of the hematopoietic lineage. More interestingly, under pathophysiological conditions HLA-G antigens may be expressed on various types of malignant cells suggesting that HLA-G antigen expression is one strategy used by tumor cells to escape immune surveillance. In this article, we will focus on HLA-G expression in cancers of distinct histology and its association with the clinical course of diseases, on the underlying molecular mechanisms of impaired HLA-G expression, on the immune tolerant function of HLA-G in tumors, and on the use of membrane-bound and soluble HLA-G as a diagnostic or prognostic biomarker to identify tumors and to monitor disease stage, as well as on the use of HLA-G as a novel therapeutic target in cancer.
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