急性感染的微生物群依赖性后遗症损害组织特异性免疫。

Microbiota-Dependent Sequelae of Acute Infection Compromise Tissue-Specific Immunity.

作者信息

Fonseca Denise Morais da, Hand Timothy W, Han Seong-Ji, Gerner Michael Y, Glatman Zaretsky Arielle, Byrd Allyson L, Harrison Oliver J, Ortiz Alexandra M, Quinones Mariam, Trinchieri Giorgio, Brenchley Jason M, Brodsky Igor E, Germain Ronald N, Randolph Gwendalyn J, Belkaid Yasmine

机构信息

Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIAID/NIH), Bethesda, MD 20892, USA; Immunity at Barrier Sites Initiative, NIAID/NIH, Bethesda, MD 20892, USA; Department of Biochemistry and Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14049-900, Brazil.

Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIAID/NIH), Bethesda, MD 20892, USA; Immunity at Barrier Sites Initiative, NIAID/NIH, Bethesda, MD 20892, USA.

出版信息

Cell. 2015 Oct 8;163(2):354-66. doi: 10.1016/j.cell.2015.08.030.

Abstract

Infections have been proposed as initiating factors for inflammatory disorders; however, identifying associations between defined infectious agents and the initiation of chronic disease has remained elusive. Here, we report that a single acute infection can have dramatic and long-term consequences for tissue-specific immunity. Following clearance of Yersinia pseudotuberculosis, sustained inflammation and associated lymphatic leakage in the mesenteric adipose tissue deviates migratory dendritic cells to the adipose compartment, thereby preventing their accumulation in the mesenteric lymph node. As a consequence, canonical mucosal immune functions, including tolerance and protective immunity, are persistently compromised. Post-resolution of infection, signals derived from the microbiota maintain inflammatory mesentery remodeling and consequently, transient ablation of the microbiota restores mucosal immunity. Our results indicate that persistent disruption of communication between tissues and the immune system following clearance of an acute infection represents an inflection point beyond which tissue homeostasis and immunity is compromised for the long-term. VIDEO ABSTRACT.

摘要

感染被认为是炎症性疾病的起始因素;然而,确定特定感染因子与慢性病起始之间的关联仍然难以捉摸。在此,我们报告单次急性感染可对组织特异性免疫产生显著且长期的影响。在清除假结核耶尔森菌后,肠系膜脂肪组织中持续的炎症和相关的淋巴渗漏使迁移性树突状细胞偏向脂肪隔室,从而阻止它们在肠系膜淋巴结中积聚。结果,包括耐受性和保护性免疫在内的经典黏膜免疫功能持续受损。感染消退后,来自微生物群的信号维持炎症性肠系膜重塑,因此,微生物群的短暂清除可恢复黏膜免疫。我们的结果表明,急性感染清除后组织与免疫系统之间通讯的持续破坏代表了一个转折点,超过这个点,组织稳态和免疫将长期受损。视频摘要。

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