Harnessing the Power of Invariant Natural Killer T Cells in Cancer Immunotherapy.

Harnessing the Power of Invariant Natural Killer T Cells in Cancer Immunotherapy.
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DOI:
10.3389/fimmu.2017.01829
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发表时间:
2017
影响因子:
7.3
通讯作者:
Cerundolo V
Cerundolo V
中科院分区:
医学2区
文献类型:
--
作者:
Bedard M;Salio M;Cerundolo V

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不变的自然杀伤T(iNKT)细胞是携带不变的T细胞受体的先天样淋巴细胞的一个独特子集,通过该受体,它们识别由单态性CD 1d分子呈递的脂质抗原。在活化后,iNKT细胞不仅能够具有直接效应子功能,而且能够通过分泌几种细胞因子和同源TCR-CD 1d相互作用来反式活化NK细胞、成熟树突细胞和活化B细胞。iNKT细胞具有协调全方位免疫反应的能力,在塑造针对病原体和癌细胞的免疫反应方面至关重要。在这篇综述中,我们从两个角度研究了iNKT细胞在抗肿瘤反应中的关键作用:(i)iNKT细胞如何增强抗肿瘤免疫力和(ii)CD 1d+肿瘤细胞如何调节自身CD 1d分子的表达。我们进一步探索了解释癌症背景下iNKT细胞活化的假设,以及如何在不同形式的癌症免疫治疗中利用iNKT细胞的抗肿瘤作用,包括它们在癌症疫苗开发中的作用。
Invariant natural killer T (iNKT) cells are a distinct subset of innate-like lymphocytes bearing an invariant T-cell receptor, through which they recognize lipid antigens presented by monomorphic CD1d molecules. Upon activation, iNKT cells are capable of not only having a direct effector function but also transactivating NK cells, maturing dendritic cells, and activating B cells, through secretion of several cytokines and cognate TCR-CD1d interaction. Endowed with the ability to orchestrate an all-encompassing immune response, iNKT cells are critical in shaping immune responses against pathogens and cancer cells. In this review, we examine the critical role of iNKT cells in antitumor responses from two perspectives: (i) how iNKT cells potentiate antitumor immunity and (ii) how CD1d+ tumor cells may modulate their own expression of CD1d molecules. We further explore hypotheses to explain iNKT cell activation in the context of cancer and how the antitumor effects of iNKT cells can be exploited in different forms of cancer immunotherapy, including their role in the development of cancer vaccines.
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