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CD4+ T cells re-wire granuloma cellularity and regulatory networks to promote immunomodulation following Mtb reinfection CD4+ T细胞重新连接肉芽肿细胞和调节网络,促进Mtb再感染后的免疫调节
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-15 DOI: 10.1016/j.immuni.2025.01.001
Joshua D. Bromley, Sharie Keanne C. Ganchua, Sarah K. Nyquist, Pauline Maiello, Michael Chao, H. Jacob Borish, Mark Rodgers, Jaime Tomko, Kara Kracinovsky, Douaa Mugahid, Son Nguyen, Qianchang Dennis Wang, Jacob M. Rosenberg, Edwin C. Klein, Hannah P. Gideon, Roisin Floyd-O’Sullivan, Bonnie Berger, Charles A. Scanga, Philana Ling Lin, Sarah M. Fortune, JoAnne L. Flynn
(Immunity 57, 2380–2398.e1–e6; October 8, 2024)
(免疫57,2380-2398.e1-e6;2024年10月8日)
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引用次数: 0
A triad of somatic mutagenesis converges in self-reactive B cells to cause a virus-induced autoimmune disease 三种体细胞突变在自身反应性B细胞中汇合,引起病毒诱导的自身免疫性疾病
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-15 DOI: 10.1016/j.immuni.2024.12.011
Clara Young, Mandeep Singh, Katherine J.L. Jackson, Matt A. Field, Timothy J. Peters, Stefano Angioletti-Uberti, Daan Frenkel, Shyamsundar Ravishankar, Money Gupta, Jing J. Wang, David Agapiou, Megan L. Faulks, Ghamdan Al-Eryani, Fabio Luciani, Tom P. Gordon, Joanne H. Reed, Mark Danta, Andrew Carr, Anthony D. Kelleher, Gregory J. Dore, Christopher C. Goodnow
The unexplained association between infection and autoimmune disease is strongest for hepatitis C virus-induced cryoglobulinemic vasculitis (HCV-cryovas). To analyze its origins, we traced the evolution of pathogenic rheumatoid factor (RF) autoantibodies in four HCV-cryovas patients by deep single-cell multi-omic analysis, revealing three sources of B cell somatic mutation converged to drive the accumulation of a large disease-causing clone. A method for quantifying low-affinity binding revealed recurring antibody variable domain combinations created by V(D)J recombination that bound self-immunoglobulin G (IgG) but not viral E2 antigen. Whole-genome sequencing revealed thousands of somatic mutations, numerically comparable to chronic lymphocytic leukemia and normal memory B cells, but with 1–2 corresponding to driver mutations found recurrently in B cell leukemia and lymphoma. V(D)J hypermutation created autoantibodies with compromised solubility in complex with self-IgG. In this virus-induced autoimmune disease, infection promotes a catastrophic confluence of somatic mutagenesis in the descendants of a single B cell.
在丙型肝炎病毒引起的冷球蛋白血症性血管炎(HCV-cryovas)中,感染与自身免疫性疾病之间无法解释的关联最强。为了分析其起源,我们通过深入的单细胞多组学分析追踪了4例HCV-cryovas患者致病性类风湿因子(RF)自身抗体的进化,揭示了B细胞体细胞突变的三个来源聚集驱动了一个大的致病克隆的积累。一种量化低亲和力结合的方法显示,通过V(D)J重组产生的反复抗体可变结构域组合与自身免疫球蛋白G (IgG)结合,而不与病毒E2抗原结合。全基因组测序揭示了数千个体细胞突变,在数量上与慢性淋巴细胞白血病和正常记忆B细胞相当,但有1-2个对应于B细胞白血病和淋巴瘤中反复发现的驱动突变。V(D)J高突变产生与自身igg复合物溶解度受损的自身抗体。在这种病毒诱导的自身免疫性疾病中,感染促进了单个B细胞后代体细胞突变的灾难性汇合。
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引用次数: 0
Mitochondria and NLRP3: To die or inflame 线粒体和NLRP3:死亡或发炎
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.007
Shuangshuang Yang, Guannan Huang, Jenny P.-Y. Ting
Mitochondria play critical roles in intrinsic apoptosis and NLRP3 inflammasome activation, but how these processes are interconnected remains unclear. In this issue of Immunity, Saller et al. unveiled the complexity of NLRP3 activators, highlighting mitochondria’s roles in switching apoptosis to NLRP3 inflammasome activation.
线粒体在内在凋亡和NLRP3炎症小体激活中发挥着关键作用,但这些过程如何相互关联仍不清楚。在本期《免疫》杂志上,Saller 等人揭示了 NLRP3 激活因子的复杂性,强调了线粒体在将细胞凋亡转换为 NLRP3 炎症小体激活过程中的作用。
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引用次数: 0
Gut know-how: IL-22 from T cells boosts stress resilience 肠道知识:来自T细胞的IL-22增强了压力恢复能力
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.11.022
Ruodi Yang, Danyang He
Immune activation during sustained stress typically worsens stress-related psychopathology. Whether it can enhance stress resilience remains unclear. In this issue of Immunity, Xia, Lu, Lan et al.1 uncover an anxiolytic function of intestinal IL-22 pathway, which protects against psychological stress.
持续应激期间的免疫激活通常会加重与应激相关的精神病理学。它是否能增强应激恢复能力仍不清楚。在本期《免疫》杂志上,Xia、Lu、Lan 等人1 发现了肠道 IL-22 通路的抗焦虑功能,它能保护人们免受心理压力的影响。
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引用次数: 0
Interleukin-17 and fat: Timing is everything 白细胞介素-17和脂肪:时机决定一切
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.005
Matthew C. Sinton, Olivia Shorthouse, Alice Costain, Juan F. Quintana
Interleukin-17 plays a major role in controlling adipose tissue homeostasis. In a recent study published in Nature, Douglas et al. demonstrate that time-of-day-dependent expression of interleukin-17 by tissue-resident innate lymphocytes in the adipose tissue drives circadian regulation of adipose tissue homeostasis and function.
白细胞介素-17 在控制脂肪组织平衡方面发挥着重要作用。道格拉斯等人最近在《自然》(Nature)杂志上发表的一项研究表明,脂肪组织中的组织驻留先天性淋巴细胞表达的白细胞介素-17具有时间-日依赖性,可驱动脂肪组织平衡和功能的昼夜节律调节。
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引用次数: 0
Restimulation by macrophages exhausts T cells 巨噬细胞的再刺激会耗尽 T 细胞
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.010
Fernando Fernández-García, Barbara B. Maier
Inhibiting T cell exhaustion is an attractive cancer immunotherapy strategy. In this issue of Immunity, Waibl Polania et al. examine the microenvironmental signals regulating terminal T cell exhaustion and find that antigen presentation by tumor-associated macrophages, not tumor cells, drives terminal T cell exhaustion in glioblastoma.
抑制 T 细胞衰竭是一种极具吸引力的癌症免疫疗法策略。在本期《免疫》杂志上,Waibl Polania 等人研究了调控终末 T 细胞衰竭的微环境信号,发现在胶质母细胞瘤中,是肿瘤相关巨噬细胞而非肿瘤细胞的抗原呈递驱动了终末 T 细胞衰竭。
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引用次数: 0
IgG sialylation puts lung inflammation to REST IgG sialylation 使肺部炎症得到缓解
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.001
Lukasz Kedzierski, Katherine Kedzierska
The mechanisms underpinning susceptibility to influenza virus infection, resulting in life-threatening disease, are not well understood. In this issue of Immunity, Chakraborty et al. demonstrate that sialylated IgG suppresses NF-κB-driven inflammatory responses in the lungs by inducing repressor element-1 silencing transcription factor (REST) to prevent excessive inflammation without impacting viral replication.
人们对流感病毒感染导致危及生命的疾病的机制还不十分清楚。在本期《免疫》杂志上,Chakraborty 等人证明,硅烷基化 IgG 通过诱导抑制因子-1 沉默转录因子 (REST) 来抑制肺部 NF-κB 驱动的炎症反应,从而在不影响病毒复制的情况下防止过度炎症。
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引用次数: 0
Adaptations of neutrophils in cancer 嗜中性粒细胞在癌症中的适应性
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.009
Melissa Ng, Daniela Cerezo-Wallis, Lai Guan Ng, Andres Hidalgo
There is a renewed interest in neutrophil biology, largely instigated by their prominence in cancer. From an immunologist’s perspective, a conceptual breakthrough is the realization that prototypical inflammatory, cytotoxic leukocytes can be tamed to promote the survival and growth of other cells. This has sparked interest in defining the biological principles and molecular mechanisms driving the adaptation of neutrophils to cancer. Yet, many questions remain: is this adaptation mediated by reprogramming mature neutrophils inside the tumoral mass, or rather by rewiring granulopoiesis in the bone marrow? Why, in some instances, are neutrophils beneficial and in others detrimental to cancer? How many different functional programs can be induced in neutrophils by tumors, and is this dependent on the type of tumor? This review summarizes what we know about these questions and discusses therapeutic strategies based on our incipient knowledge of how neutrophils adapt to cancer.
中性粒细胞生物学重新引起了人们的兴趣,这主要是由于它们在癌症中的突出作用。从免疫学家的角度来看,一个概念上的突破是认识到典型的炎症细胞,细胞毒性白细胞可以被驯服,以促进其他细胞的生存和生长。这激发了人们对确定中性粒细胞适应癌症的生物学原理和分子机制的兴趣。然而,许多问题仍然存在:这种适应是通过肿瘤肿块内成熟中性粒细胞的重编程介导的,还是通过骨髓中粒细胞的重编程介导的?为什么在某些情况下,中性粒细胞对癌症有益,而在另一些情况下则有害?肿瘤可在中性粒细胞中诱导多少种不同的功能程序,这是否取决于肿瘤的类型?这篇综述总结了我们对这些问题的了解,并讨论了基于我们对中性粒细胞如何适应癌症的初步认识的治疗策略。
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引用次数: 0
The immunology of stroke and dementia 中风和痴呆症的免疫学
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-14 DOI: 10.1016/j.immuni.2024.12.008
Costantino Iadecola, Josef Anrather
Ischemic stroke and vascular cognitive impairment, caused by a sudden arterial occlusion or more subtle but protracted vascular insufficiency, respectively, are leading causes of morbidity and mortality worldwide with limited therapeutic options. Innate and adaptive immunity have long been implicated in neurovascular injury, but recent advances in methodology and new experimental approaches have shed new light on their contributions. A previously unappreciated dynamic interplay of brain-resident, meningeal, and systemic immune cells with the ischemic brain and its vasculature has emerged, and new insights into the frequent overlap between vascular and Alzheimer pathology have been provided. Here, we critically review these recent findings, place them in the context of current concepts on neurovascular pathologies and Alzheimer’s disease, and highlight their impact on recent stroke and Alzheimer therapies.
缺血性中风和血管性认知障碍分别由突发动脉闭塞或更细微但持续的血管功能不全引起,是世界范围内发病率和死亡率的主要原因,治疗选择有限。先天免疫和适应性免疫长期以来一直与神经血管损伤有关,但最近在方法学和新的实验方法方面的进展为它们的贡献提供了新的线索。脑驻留细胞、脑膜细胞和全身性免疫细胞与缺血性脑及其脉管系统之间的动态相互作用已经出现,并提供了血管和阿尔茨海默病之间频繁重叠的新见解。在这里,我们批判性地回顾了这些最近的发现,将它们放在当前神经血管病理学和阿尔茨海默病概念的背景下,并强调了它们对最近中风和阿尔茨海默病治疗的影响。
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引用次数: 0
Structures of ATP-binding cassette transporter ABCC1 reveal the molecular basis of cyclic dinucleotide cGAMP export atp结合盒转运体ABCC1的结构揭示了环二核苷酸cGAMP输出的分子基础
IF 32.4 1区 医学 Q1 IMMUNOLOGY Pub Date : 2025-01-06 DOI: 10.1016/j.immuni.2024.12.002
Omkar Shinde, Joshua A. Boyer, Stephanie Cambier, Jordyn J. VanPortfliet, Xuewu Sui, Gaya P. Yadav, Elizabeth G. Viverette, Mario J. Borgnia, A. Phillip West, Qi Zhang, Daniel B. Stetson, Pingwei Li
Cyclic nucleotide GMP-AMP (cGAMP) plays a critical role in mediating the innate immune response through the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway. Recent studies showed that ATP-binding cassette subfamily C member 1 (ABCC1) is a cGAMP exporter. The exported cGAMP can be imported into uninfected cells to stimulate a STING-mediated innate immune response. However, the molecular basis of cGAMP export mediated by ABCC1 remains unclear. Here, we report the cryoelectron microscopy (cryo-EM) structures of human ABCC1 in a ligand-free state and a cGAMP-bound state. These structures reveal that ABCC1 forms a homodimer via its N-terminal transmembrane domain. The ligand-bound structure shows that cGAMP is recognized by a positively charged pocket. Mutagenesis and functional studies confirmed the roles of the ligand-binding pocket in cGAMP recognition and export. This study provides insights into the structure and function of ABCC1 as a cGAMP exporter and lays a foundation for future research targeting ABCC1 in infection and anti-cancer immunity.
环核苷酸GMP-AMP (cGAMP)通过环GMP-AMP合成酶(cGAS)-干扰素基因刺激因子(STING)通路在介导先天免疫应答中起关键作用。最近的研究表明,atp结合盒亚家族C成员1 (ABCC1)是cGAMP的输出者。输出的cGAMP可以输入到未感染的细胞中,刺激sting介导的先天免疫反应。然而,ABCC1介导的cGAMP输出的分子基础尚不清楚。在这里,我们报道了人类ABCC1在无配体状态和cgamp结合状态下的冷冻电镜(cro - em)结构。这些结构表明ABCC1通过其n端跨膜结构域形成同型二聚体。配体结合结构表明cGAMP被带正电的口袋识别。诱变和功能研究证实了配体结合口袋在cGAMP识别和输出中的作用。本研究揭示了ABCC1作为cGAMP输出者的结构和功能,为今后针对ABCC1在感染和抗癌免疫中的研究奠定了基础。
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Immunity
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