CXCR3 配体在滑膜微环境中的多效作用综述。

A review of the pleiotropic actions of the IFN-inducible CXC chemokine receptor 3 ligands in the synovial microenvironment.

机构信息

Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium.

Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium.

出版信息

Cell Mol Life Sci. 2023 Mar 2;80(3):78. doi: 10.1007/s00018-023-04715-w.

Abstract

Chemokines are pivotal players in instigation and perpetuation of synovitis through leukocytes egress from the blood circulation into the inflamed articulation. Multitudinous literature addressing the involvement of the dual-function interferon (IFN)-inducible chemokines CXCL9, CXCL10 and CXCL11 in diseases characterized by chronic inflammatory arthritis emphasizes the need for detangling their etiopathological relevance. Through interaction with their mutual receptor CXC chemokine receptor 3 (CXCR3), the chemokines CXCL9, CXCL10 and CXCL11 exert their hallmark function of coordinating directional trafficking of CD4 T1 cells, CD8 T cells, NK cells and NKT cells towards inflammatory niches. Among other (patho)physiological processes including infection, cancer, and angiostasis, IFN-inducible CXCR3 ligands have been implicated in autoinflammatory and autoimmune diseases. This review presents a comprehensive overview of the abundant presence of IFN-induced CXCR3 ligands in bodily fluids of patients with inflammatory arthritis, the outcomes of their selective depletion in rodent models, and the attempts at developing candidate drugs targeting the CXCR3 chemokine system. We further propose that the involvement of the CXCR3 binding chemokines in synovitis and joint remodeling encompasses more than solely the directional ingress of CXCR3-expressing leukocytes. The pleotropic actions of the IFN-inducible CXCR3 ligands in the synovial niche reiteratively illustrate the extensive complexity of the CXCR3 chemokine network, which is based on the intercommunion of IFN-inducible CXCR3 ligands with distinct CXCR3 isoforms, enzymes, cytokines, and infiltrated and resident cells present in the inflamed joints.

摘要

趋化因子是通过白细胞从血液循环中渗出到炎症关节中来引发和维持滑膜炎的关键参与者。大量文献研究了双功能干扰素(IFN)诱导的趋化因子 CXCL9、CXCL10 和 CXCL11 在以慢性炎症性关节炎为特征的疾病中的作用,强调需要理清它们的发病机制相关性。趋化因子 CXCL9、CXCL10 和 CXCL11 通过与其共同受体 CXC 趋化因子受体 3(CXCR3)相互作用,发挥其标志性功能,协调 CD4 T1 细胞、CD8 T 细胞、NK 细胞和 NKT 细胞向炎症部位的定向迁移。在其他(病理)生理过程中,包括感染、癌症和血管生成,IFN 诱导的 CXCR3 配体已被牵连到自身炎症性和自身免疫性疾病中。本文综述了 IFN 诱导的 CXCR3 配体在炎症性关节炎患者体液中的丰富存在,以及在啮齿动物模型中选择性消耗这些配体的结果,并尝试开发针对 CXCR3 趋化系统的候选药物。我们进一步提出,CXCR3 结合趋化因子在滑膜炎和关节重塑中的参与不仅仅是 CXCR3 表达白细胞的定向进入。IFN 诱导的 CXCR3 配体在滑膜龛中的多效性作用再次说明了 CXCR3 趋化因子网络的广泛复杂性,该网络基于 IFN 诱导的 CXCR3 配体与不同的 CXCR3 同工型、酶、细胞因子以及存在于炎症关节中的浸润和固有细胞之间的相互交流。

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