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对伯氏疏螺旋体的血管内免疫反应涉及枯否细胞和 iNKT 细胞。

An intravascular immune response to Borrelia burgdorferi involves Kupffer cells and iNKT cells.

机构信息

Department of Physiology & Pharmacology, University of Calgary, Alberta, Canada.

出版信息

Nat Immunol. 2010 Apr;11(4):295-302. doi: 10.1038/ni.1855. Epub 2010 Mar 14.


DOI:10.1038/ni.1855
PMID:20228796
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5114121/
Abstract

Here we investigate the dynamics of the hepatic intravascular immune response to a pathogen relevant to invariant natural killer T cells (iNKT cells). Immobilized Kupffer cells with highly ramified extended processes into multiple sinusoids could effectively capture blood-borne, disseminating Borrelia burgdorferi, creating a highly efficient surveillance and filtering system. After ingesting B. burgdorferi, Kupffer cells induced chemokine receptor CXCR3-dependent clustering of iNKT cells. Kupffer cells and iNKT cells formed stable contacts via the antigen-presenting molecule CD1d, which led to iNKT cell activation. An absence of iNKT cells caused B. burgdorferi to leave the blood and enter the joints more effectively. B. burgdorferi that escaped Kupffer cells entered the liver parenchyma and survived despite Ito cell responses. Kupffer cell-iNKT cell interactions induced a key intravascular immune response that diminished the dissemination of B. burgdorferi.

摘要

在这里,我们研究了固有自然杀伤 T 细胞(iNKT 细胞)相关病原体在肝血管内的免疫反应动力学。具有高度分支扩展突起进入多个血窦的固定库普弗细胞能够有效地捕获血流传播、扩散的伯氏疏螺旋体,形成一个高效的监测和过滤系统。吞噬伯氏疏螺旋体后,库普弗细胞诱导趋化因子受体 CXCR3 依赖性 iNKT 细胞聚集。库普弗细胞和 iNKT 细胞通过抗原呈递分子 CD1d 形成稳定的接触,导致 iNKT 细胞激活。如果没有 iNKT 细胞,伯氏疏螺旋体就会更有效地离开血液进入关节。逃出库普弗细胞的伯氏疏螺旋体进入肝实质并存活下来,尽管有 Ito 细胞的反应。库普弗细胞-iNKT 细胞相互作用诱导了一种关键的血管内免疫反应,减少了伯氏疏螺旋体的传播。

相似文献

[1]
An intravascular immune response to Borrelia burgdorferi involves Kupffer cells and iNKT cells.

Nat Immunol. 2010-3-14

[2]
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[3]
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J Immunol. 2009-3-15

[4]
NKT cells prevent chronic joint inflammation after infection with Borrelia burgdorferi.

Proc Natl Acad Sci U S A. 2008-12-16

[5]
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PLoS One. 2013-11-15

[6]
Invariant NKT cell development requires a full complement of functional CD3 zeta immunoreceptor tyrosine-based activation motifs.

J Immunol. 2010-5-14

[7]
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[8]
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[9]
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[10]
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[2]
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J Clin Invest. 2025-7-3

[3]
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[4]
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[5]
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[6]
The role of heme in sepsis induced Kupffer cell PANoptosis and senescence.

Cell Death Dis. 2025-4-13

[7]
Hepatocyte Toll-like receptors contribute to the hepcidin inflammatory response to pathogens and pathogen-derived ligands.

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[8]
Splenic red pulp macrophages eliminate the liver-resistant from the blood circulation of mice.

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[9]
Extravasation of Borrelia burgdorferi Across the Blood-Brain Barrier is an Extremely Rare Event.

Adv Sci (Weinh). 2025-5

[10]
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Front Immunol. 2025-2-18

本文引用的文献

[1]
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[2]
NKT cells prevent chronic joint inflammation after infection with Borrelia burgdorferi.

Proc Natl Acad Sci U S A. 2008-12-16

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Rod-Shaped monocytes patrol the brain vasculature and give rise to perivascular macrophages under the influence of proinflammatory cytokines and angiopoietin-2.

J Neurosci. 2008-10-8

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PLoS Pathog. 2008-6-20

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J Immunol. 2008-2-15

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J Immunol. 2008-1-1

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Subcapsular sinus macrophages in lymph nodes clear lymph-borne viruses and present them to antiviral B cells.

Nature. 2007-11-1

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