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Generating prophylactic immunity against arboviruses in vertebrates and invertebrates 在脊椎动物和无脊椎动物中产生针对虫媒病毒的预防性免疫力
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-04-03 DOI: 10.1038/s41577-024-01016-6
Daniel J. Rawle, Leon E. Hugo, Abigail L. Cox, Gregor J. Devine, Andreas Suhrbier
The World Health Organization recently declared a global initiative to control arboviral diseases. These are mainly caused by pathogenic flaviviruses (such as dengue, yellow fever and Zika viruses) and alphaviruses (such as chikungunya and Venezuelan equine encephalitis viruses). Vaccines represent key interventions for these viruses, with licensed human and/or veterinary vaccines being available for several members of both genera. However, a hurdle for the licensing of new vaccines is the epidemic nature of many arboviruses, which presents logistical challenges for phase III efficacy trials. Furthermore, our ability to predict or measure the post-vaccination immune responses that are sufficient for subclinical outcomes post-infection is limited. Given that arboviruses are also subject to control by the immune system of their insect vectors, several approaches are now emerging that aim to augment antiviral immunity in mosquitoes, including Wolbachia infection, transgenic mosquitoes, insect-specific viruses and paratransgenesis. In this Review, we discuss recent advances, current challenges and future prospects in exploiting both vertebrate and invertebrate immune systems for the control of flaviviral and alphaviral diseases. In this Review, the authors discuss recent advances, current challenges and future prospects in exploiting both vertebrate and invertebrate immune systems for the control of flaviviral and alphaviral diseases.
世界卫生组织最近宣布了一项控制虫媒病毒疾病的全球倡议。这些疾病主要由致病性黄病毒(如登革热、黄热病和寨卡病毒)和阿尔巴病毒(如基孔肯雅病毒和委内瑞拉马脑炎病毒)引起。疫苗是这些病毒的关键干预措施,目前已有针对这两个病毒属中若干成员的人类和/或兽医许可疫苗。然而,许多虫媒病毒具有流行性,这给 III 期药效试验带来了后勤方面的挑战,这也是新疫苗获得许可的一个障碍。此外,我们预测或测量疫苗接种后免疫反应的能力有限,而这种免疫反应足以在感染后产生亚临床结果。鉴于虫媒病毒也受其昆虫载体免疫系统的控制,目前出现了几种旨在增强蚊子抗病毒免疫力的方法,包括沃尔巴克氏体感染、转基因蚊子、昆虫特异性病毒和副转基因。在本综述中,我们将讨论利用脊椎动物和无脊椎动物免疫系统控制黄病毒和阿尔法病毒疾病的最新进展、当前挑战和未来前景。
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引用次数: 0
Short-chain fatty acids: linking diet, the microbiome and immunity 短链脂肪酸:将饮食、微生物群和免疫力联系起来
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-04-02 DOI: 10.1038/s41577-024-01014-8
Elizabeth R. Mann, Ying Ka Lam, Holm H. Uhlig
The short-chain fatty acids (SCFAs) butyrate, propionate and acetate are microbial metabolites and their availability in the gut and other organs is determined by environmental factors, such as diet and use of antibiotics, that shape the diversity and metabolism of the microbiota. SCFAs regulate epithelial barrier function as well as mucosal and systemic immunity via evolutionary conserved processes that involve G protein-coupled receptor signalling or histone deacetylase activity. Indicatively, the anti-inflammatory role of butyrate is mediated through direct effects on the differentiation of intestinal epithelial cells, phagocytes, B cells and plasma cells, and regulatory and effector T cells. Intestinally derived SCFAs also directly and indirectly affect immunity at extra-intestinal sites, such as the liver, the lungs, the reproductive tract and the brain, and have been implicated in a range of disorders, including infections, intestinal inflammation, autoimmunity, food allergies, asthma and responses to cancer therapies. An ecological understanding of microbial communities and their interrelated metabolic states, as well as the engineering of butyrogenic bacteria may support SCFA-focused interventions for the prevention and treatment of immune-mediated diseases. Short-chain fatty acids (SCFAs) are microbial metabolites that regulate mucosal barrier integrity and immune cell functions. This Review summarizes latest insights into how SCFA levels might determine inflammatory and allergic disease outcomes by controlling the crosstalk between diet, the microbiome and immunity.
短链脂肪酸(SCFAs)丁酸盐、丙酸盐和乙酸盐是微生物的代谢产物,它们在肠道和其他器官中的供应量取决于环境因素,如饮食和抗生素的使用,这些因素影响着微生物群的多样性和新陈代谢。SCFAs 通过涉及 G 蛋白偶联受体信号或组蛋白去乙酰化酶活性的进化保守过程来调节上皮屏障功能以及粘膜和全身免疫。有迹象表明,丁酸盐的抗炎作用是通过直接影响肠上皮细胞、吞噬细胞、B 细胞和浆细胞以及调节性和效应 T 细胞的分化来实现的。肠道衍生的 SCFAs 还直接或间接影响肠道外部位的免疫,如肝脏、肺、生殖道和大脑,并与一系列疾病有关,包括感染、肠道炎症、自身免疫、食物过敏、哮喘和对癌症疗法的反应。从生态学角度了解微生物群落及其相互关联的新陈代谢状态,以及丁酸菌工程学,可能有助于采取以 SCFA 为重点的干预措施,预防和治疗免疫介导的疾病。
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引用次数: 0
PANINI: Combined protein and nucleic acid imaging in tissues PANINI:组织中的蛋白质和核酸组合成像
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-28 DOI: 10.1038/s41577-024-01028-2
Sizun Jiang
Sizun Jiang (while in the Garry Nolan lab) describes a method termed PANINI that allows simultaneous detection of nucleic acids at low copy numbers and protein markers in intact tissues, offering valuable insights into virus–immune system interactions and beyond.
Sizun Jiang(在 Garry Nolan 实验室工作期间)介绍了一种名为 PANINI 的方法,该方法可同时检测完整组织中低拷贝数的核酸和蛋白质标记物,为了解病毒与免疫系统的相互作用及其他方面提供了宝贵的信息。
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引用次数: 0
A pre-TCRα-independent pathway of αβ T cell differentiation 独立于前 TCRα 的 αβ T 细胞分化途径。
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-19 DOI: 10.1038/s41577-024-01024-6
Kirsty Minton
A study in Science reports 10 individuals with pre-TCRα deficiency who have late-onset or no clinical phenotype, which suggests that αβ T cells can develop through a pre-TCRα-independent, non-canonical rescue pathway.
科学》(Science)杂志上的一项研究报告了 10 名前 TCRα 缺乏症患者,他们发病较晚或没有临床表型,这表明αβ T 细胞可以通过前 TCRα 无关的非经典拯救途径发育。
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引用次数: 0
Bone marrow inflammation in haematological malignancies 血液恶性肿瘤中的骨髓炎症
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-15 DOI: 10.1038/s41577-024-01003-x
Madelon M. E. de Jong, Lanpeng Chen, Marc H. G. P. Raaijmakers, Tom Cupedo
Tissue inflammation is a hallmark of tumour microenvironments. In the bone marrow, tumour-associated inflammation impacts normal niches for haematopoietic progenitor cells and mature immune cells and supports the outgrowth and survival of malignant cells residing in these niche compartments. This Review provides an overview of our current understanding of inflammatory changes in the bone marrow microenvironment of myeloid and lymphoid malignancies, using acute myeloid leukaemia and multiple myeloma as examples and highlights unique and shared features of inflammation in niches for progenitor cells and plasma cells. Importantly, inflammation exerts profoundly different effects on normal bone marrow niches in these malignancies, and we provide context for possible drivers of these divergent effects. We explore the role of tumour cells in inflammatory changes, as well as the role of cellular constituents of normal bone marrow niches, including myeloid cells and stromal cells. Integrating knowledge of disease-specific dynamics of malignancy-associated bone marrow inflammation will provide a necessary framework for future targeting of these processes to improve patient outcome. Haematological malignancies are associated with inflammation in the bone marrow. In this Review, the authors discuss how tumour-associated inflammation affects the normal functions of the bone marrow and supports the outgrowth and survival of malignant cells. Moreover, they describe how the inflammatory changes in the bone marrow differ in myeloid and lymphoid malignancies.
组织炎症是肿瘤微环境的标志。在骨髓中,肿瘤相关炎症影响造血祖细胞和成熟免疫细胞的正常龛位,并支持居住在这些龛位中的恶性细胞的生长和生存。本综述以急性髓性白血病和多发性骨髓瘤为例,概述了我们目前对骨髓和淋巴恶性肿瘤骨髓微环境中炎症变化的理解,并强调了祖细胞和浆细胞龛位中炎症的独特和共同特征。重要的是,在这些恶性肿瘤中,炎症对正常骨髓龛产生了深远的不同影响,我们为这些不同影响的可能驱动因素提供了背景。我们探讨了肿瘤细胞在炎症变化中的作用,以及骨髓细胞和基质细胞等正常骨髓龛细胞成分的作用。整合恶性肿瘤相关骨髓炎症的疾病特异性动态知识将为未来针对这些过程改善患者预后提供必要的框架。
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引用次数: 0
Strategies for targeting cytokines in inflammatory bowel disease 针对炎症性肠病细胞因子的策略。
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-14 DOI: 10.1038/s41577-024-01008-6
Markus F. Neurath
Cytokines produced by immune cells contribute to the development and perpetuation of inflammatory bowel disease (IBD), namely Crohn’s disease and ulcerative colitis, by regulating various aspects of the inflammatory response. Pro-inflammatory cytokines trigger chronic intestinal inflammation, tissue damage, carcinogenesis and perpetuation of disease and suppress the resolution of inflammation in IBD. The clinical success of antibodies that neutralize tumour necrosis factor (TNF) and the cytokine IL-12p40 in individuals with IBD has underscored this concept. Moreover, genetic and preclinical studies have emphasized the crucial role of IL-23 in IBD, leading to clinical approval of antibodies targeting this cytokine. Multiple studies have also investigated the administration of cytokines with assumed anti-inflammatory effects, but this approach has yet to show any real clinical benefit in individuals with IBD. Recent studies have targeted the cytokine network through the use of multi-cytokine blockers (for example, Janus kinase (JAK) inhibitors), IL-2-induced regulatory T cells or advanced combination therapies that use multiple cytokine blockers simultaneously (for example, anti-TNF along with anti-IL-23 antibodies). This Review will focus on our current understanding of how cytokines produced by innate and adaptive immune cells contribute to IBD pathogenesis and discuss how their modulation may inform future treatments for IBD. This Review explains how cytokines contribute to the pathogenesis of inflammatory bowel disease (IBD). The author highlights the cytokine-targeting drugs that are already being successfully used in the clinic and discusses the potential of other cytokine-modulating drugs in IBD.
免疫细胞产生的细胞因子通过调节炎症反应的各个方面,导致炎症性肠病(IBD),即克罗恩病和溃疡性结肠炎的发展和延续。促炎细胞因子会引发慢性肠道炎症、组织损伤、癌变和疾病的延续,并抑制 IBD 炎症的消退。中和肿瘤坏死因子(TNF)和细胞因子 IL-12p40 的抗体在 IBD 患者中取得的临床成功强调了这一概念。此外,遗传学和临床前研究强调了 IL-23 在 IBD 中的关键作用,导致针对这种细胞因子的抗体获得临床批准。多项研究还调查了假定具有抗炎作用的细胞因子,但这种方法尚未在 IBD 患者身上显示出真正的临床疗效。最近的研究通过使用多细胞因子阻断剂(如 Janus 激酶 (JAK) 抑制剂)、IL-2 诱导的调节性 T 细胞或同时使用多种细胞因子阻断剂的先进联合疗法(如抗肿瘤坏死因子和抗 IL-23 抗体)来靶向治疗细胞因子网络。本综述将重点介绍我们目前对先天性和适应性免疫细胞产生的细胞因子如何影响 IBD 发病机制的认识,并讨论如何通过调节这些细胞因子为未来的 IBD 治疗提供依据。
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引用次数: 0
Author Correction: Using BCG vaccination to protect against COVID-19: when reality fails to meet expectation 作者更正:使用卡介苗预防 COVID-19:当现实与期望不符时。
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-13 DOI: 10.1038/s41577-024-01023-7
Laure F. Pittet, Christie C. A. Noble, Nicole L. Messina, Nigel Curtis
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引用次数: 0
Made to order: emergency myelopoiesis and demand-adapted innate immune cell production 按需定制:紧急骨髓造血和适应需求的先天性免疫细胞生成
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-11 DOI: 10.1038/s41577-024-00998-7
James W. Swann, Oakley C. Olson, Emmanuelle Passegué
Definitive haematopoiesis is the process by which haematopoietic stem cells, located in the bone marrow, generate all haematopoietic cell lineages in healthy adults. Although highly regulated to maintain a stable output of blood cells in health, the haematopoietic system is capable of extensive remodelling in response to external challenges, prioritizing the production of certain cell types at the expense of others. In this Review, we consider how acute insults, such as infections and cytotoxic drug-induced myeloablation, cause molecular, cellular and metabolic changes in haematopoietic stem and progenitor cells at multiple levels of the haematopoietic hierarchy to drive accelerated production of the mature myeloid cells needed to resolve the initiating insult. Moreover, we discuss how dysregulation or subversion of these emergency myelopoiesis mechanisms contributes to the progression of chronic inflammatory diseases and cancer. Acute infection and other insults cause extensive remodelling in the bone marrow to drive the production of new blood cells, often prioritizing the production of mature myeloid cells at the expense of other blood cell types. Here, the authors describe how haematopoiesis is affected by acute demand and how this can contribute to inflammatory disease and cancer when dysregulated.
确定性造血是指位于骨髓中的造血干细胞在健康成年人体内生成所有造血细胞系的过程。虽然造血系统受到高度调控,以保持健康状态下血细胞的稳定输出,但它能够在应对外部挑战时进行广泛重塑,优先生成某些类型的细胞,而牺牲其他类型的细胞。在本综述中,我们将探讨急性损伤(如感染和细胞毒性药物诱导的髓细胞消减)如何在造血系统的多个层次上引起造血干细胞和祖细胞的分子、细胞和代谢变化,从而加速产生解决初始损伤所需的成熟髓细胞。此外,我们还讨论了这些紧急骨髓造血机制的失调或颠覆如何导致慢性炎症性疾病和癌症的发展。
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引用次数: 0
Regulation of innate-like activities of neonatal CD8+ T cells 新生儿 CD8+ T 细胞先天样活动的调控。
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-11 DOI: 10.1038/s41577-024-01020-w
Alexandra Flemming
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引用次数: 0
CARD8 kills CD4+ T cells in response to HIV entry CARD8 能杀死进入人体的 CD4+ T 细胞。
IF 67.7 1区 医学 Q1 IMMUNOLOGY Pub Date : 2024-03-11 DOI: 10.1038/s41577-024-01021-9
Alexandra Flemming
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引用次数: 0
期刊
Nature Reviews Immunology
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