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DAMPs in the immunogenicity of cell death 细胞死亡免疫原性中的DAMPs
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.007
Ruochan Chen, Ju Zou, Jiao Liu, Rui Kang, Daolin Tang
Damage-associated molecular patterns (DAMPs) are endogenous molecules—such as proteins, lipids, and nucleic acids—released or exposed during cellular injury or stress, which shape immune responses by engaging danger sensors on the cell surface or within the cell interior. Recent advances have elucidated molecular links between distinct cell death pathways—apoptosis, necroptosis, pyroptosis, and ferroptosis—and DAMP release, emphasizing how biochemical features (e.g., posttranslational modifications) and temporal dynamics influence immunogenic versus tolerogenic outcomes. Here, we summarize these mechanisms, including both immunostimulatory and immunosuppressive DAMPs, and review key DAMP receptors—such as TLRs, NLRs, cGAS, and advanced glycosylation end-product-specific receptor (AGER)/RAGE—along with their downstream signaling cascades. Finally, we highlight emerging strategies to modulate DAMP signaling for cancer immunotherapy and the treatment of inflammatory diseases.
损伤相关分子模式(DAMPs)是细胞损伤或应激时释放或暴露的内源性分子,如蛋白质、脂质和核酸,它们通过参与细胞表面或细胞内部的危险传感器来形成免疫反应。最近的进展已经阐明了不同细胞死亡途径(凋亡、坏死坏死、焦亡和死铁)和DAMP释放之间的分子联系,强调了生化特征(如翻译后修饰)和时间动力学如何影响免疫原性和耐受性的结果。在这里,我们总结了这些机制,包括免疫刺激和免疫抑制的阻尼,并回顾了关键的阻尼受体,如tlr、nlr、cGAS和晚期糖基化终末产物特异性受体(AGER)/ rage,以及它们的下游信号级联。最后,我们强调了在癌症免疫治疗和炎症性疾病治疗中调节DAMP信号的新策略。
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引用次数: 0
Nucleic acid-protein condensates in innate immunity 先天免疫中的核酸-蛋白凝聚
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.014
Gaia Loucas, Nicolas Locker, Roy Parker
Mammalian cells combat pathogens by diverse mechanisms. A key aspect of host defense is the pattern recognition receptors (PRRs) that recognize foreign nucleic acids and activate innate immune signaling pathways. Dysregulation of innate immunity is associated with both infectious diseases and chronic inflammatory conditions. Recent results argue that recognition of, and signaling from, foreign nucleic acids can be modulated by the concentration of PRRs and their nucleic acid ligands into RNA/DNA-protein co-condensates. Such condensates can affect the initiation of distinct cell death programs, proinflammatory signaling, host shutdown, and the innate immune response. Given these roles, hosts and pathogens have evolved to promote or antagonize PRR-nucleic acid condensation. Moreover, general ribonucleoprotein (RNP) granules such as stress granules and paraspeckles can either promote the formation of double-stranded RNA (dsRNA) and/or influence the response to foreign nucleic acids. Herein, we discuss advances in the field that address the relationship between RNA/DNA-protein co-condensates and innate immune regulation.
哺乳动物细胞通过多种机制对抗病原体。宿主防御的一个关键方面是识别外来核酸并激活先天免疫信号通路的模式识别受体(PRRs)。先天免疫失调与感染性疾病和慢性炎症有关。最近的研究结果表明,对外来核酸的识别和信号传导可以通过PRRs及其核酸配体的浓度来调节。这些凝聚物可以影响不同细胞死亡程序的启动、促炎信号、宿主关闭和先天免疫反应。鉴于这些作用,宿主和病原体已经进化到促进或对抗prr -核酸凝聚。此外,一般核糖核蛋白(RNP)颗粒,如应激颗粒和副颗粒,可以促进双链RNA (dsRNA)的形成和/或影响对外来核酸的反应。在此,我们讨论了RNA/ dna -蛋白共凝聚物与先天免疫调节之间关系的研究进展。
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引用次数: 0
Molecular mechanisms in innate immunity 先天免疫的分子机制
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.026
Heather Bisbee

Section snippets

Main text

In the everlasting conflict between host species and invading pathogens, innate immunity provides an early line of defense. Comprising intrinsic defensive mechanisms, innate immune systems are found across the tree of life. There is a strong appreciation of the cell types contributing to innate immune responses and the pathways that enable their function. Excitingly, interest has turned to characterizing the underlying molecular mechanisms that drive cellular immune responses and to an emphasis
在宿主物种与入侵病原体之间持续不断的冲突中,先天免疫提供了一道早期防线。先天免疫系统包括内在的防御机制,存在于生命之树上。有一个强烈的赞赏细胞类型有助于先天免疫反应和途径,使其功能。令人兴奋的是,兴趣已经转向表征驱动细胞免疫反应的潜在分子机制,并强调
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引用次数: 0
NLRP1 under pressure: An overview of the NLRP1 inflammasome as a sensor of cellular stress 压力下的NLRP1: NLRP1炎性体作为细胞应激传感器的概述
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.018
Jeremy Kean Yi Yap, Kinga Duszyc, Kate Schroder
NLRP1 (NACHT, leucine-rich repeats [LRRs], and pyrin domain [PYD]-containing protein 1) is a microbe and stress sensor that, upon activation, forms a caspase-1-activating inflammasome that drives IL-1β and IL-18 maturation and pyroptotic cell death. NLRP1 exhibits allelic diversity and interspecies differences in protein architecture, activating stimuli and expression patterns. Despite this complexity, human NLRP1 is emerging as an important sensor of perturbations in epithelial homeostasis, with key functions in epithelial inflammation, integrity, and barrier function. Here, we review recent discoveries of NLRP1 activation pathways, insights that may be gained from the related proteins caspase recruitment domain 8 (CARD8) and PIDD1, and open questions that continue to challenge the field as we move toward greater understanding of this enigmatic signaling pathway.
NLRP1 (NACHT,富含亮氨酸的重复序列[LRRs]和pyrin结构域[PYD]-containing protein 1)是一种微生物和应激传感器,激活后形成caspase-1激活炎性体,驱动IL-1β和IL-18成熟和热腐细胞死亡。NLRP1在蛋白结构、激活刺激和表达模式上表现出等位基因多样性和种间差异。尽管存在这种复杂性,人类NLRP1正在成为上皮内稳态扰动的重要传感器,在上皮炎症、完整性和屏障功能中具有关键功能。在这里,我们回顾了NLRP1激活途径的最新发现,从相关蛋白caspase募集结构域8 (CARD8)和PIDD1中可能获得的见解,以及随着我们对这一神秘信号通路的进一步了解,继续挑战该领域的开放性问题。
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引用次数: 0
Amino acid and cholesterol metabolism in innate immunity 氨基酸和胆固醇在先天免疫中的代谢
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.019
Weiyun Li, Miao Jin, Hongye Li, Ruiyue Zhong, Zhaoheng Lin, Miao Shen, Hongyan Wang
Innate immune cells not only serve as the first line of defense against pathogen invasion but also play essential roles in the immune regulatory function of various diseases. Distinct innate immune cells and their subtypes exhibit unique metabolic profiles, and their activation, differentiation, and effector functions are tightly governed by a complex regulatory network involving both intracellular metabolism and metabolites derived from the surrounding microenvironment. Cholesterol and amino acids function not only as structural constituents of membranes and proteins but also as signaling mediators that fine-tune immune cell activity. Importantly, their metabolic pathways are tightly interconnected. This review focuses on amino acid and cholesterol metabolism, offering comprehensive insights into how these metabolic processes shape innate immune cell function during homeostasis or pathological conditions. We further discuss emerging metabolic targets and therapeutic strategies aimed at modulating innate immunity in the context of immune-related diseases.
先天免疫细胞不仅是抵御病原体侵袭的第一道防线,而且在各种疾病的免疫调节功能中发挥着重要作用。不同的先天免疫细胞及其亚型表现出独特的代谢特征,它们的激活、分化和效应功能受到细胞内代谢和来自周围微环境的代谢物的复杂调节网络的严格控制。胆固醇和氨基酸不仅是膜和蛋白质的结构成分,而且是调节免疫细胞活性的信号介质。重要的是,它们的代谢途径是紧密相连的。这篇综述的重点是氨基酸和胆固醇代谢,提供了全面的见解如何这些代谢过程塑造先天免疫细胞功能在稳态或病理条件下。我们进一步讨论了在免疫相关疾病的背景下,旨在调节先天免疫的新兴代谢靶点和治疗策略。
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引用次数: 0
Orchestration of plant PRR- and NLR-mediated immunity: Protein kinases and beyond 植物PRR和nlr介导免疫的协调:蛋白激酶及其他
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.010
Yan Yan, Guangchao Liu, Qiaochu Shen, Ping He, Libo Shan
The plant immune system senses infections primarily through two branches of immune receptors: cell surface-resident pattern-recognition receptors (PRRs) and intracellular NOD-like receptors (NLRs). Although distinct in perception and activation, PRR and NLR signaling are interconnected and mutually regulated. A major class of PRRs, receptor kinases (RKs), often activate intracellular kinases, including receptor-like cytoplasmic kinases (RLCKs) and mitogen-activated protein kinases (MAPKs). Some RLCKs act as decoys, activating NLRs upon pathogen effector recognition. Recent advances expand the repertoire of kinases, including RKs, tandem kinase proteins, and calcium-dependent protein kinases, by directly activating or suppressing NLRs through phosphorylation. Furthermore, PRR-regulated RKs and MAPKs play critical roles in restraining NLR activity to maintain immune homeostasis. In response to pathogen perturbations, plants mobilize backup surveillance mechanisms involving RKs and RLCKs to derepress NLR immunity. This review highlights recent advances in the dynamic interplay between PRR and NLR signaling, focusing on protein kinases.
植物免疫系统主要通过两类免疫受体感知感染:细胞表面模式识别受体(PRRs)和细胞内nod样受体(NLRs)。尽管在感知和激活上不同,PRR和NLR信号是相互联系和相互调节的。一类主要的PRRs,受体激酶(RKs),经常激活细胞内激酶,包括受体样细胞质激酶(RLCKs)和丝裂原活化蛋白激酶(MAPKs)。一些RLCKs作为诱饵,在病原体效应识别时激活nlr。最近的研究进展通过磷酸化直接激活或抑制NLRs,扩大了激酶的种类,包括RKs、串联激酶蛋白和钙依赖性蛋白激酶。此外,prr调控的RKs和MAPKs在抑制NLR活性以维持免疫稳态方面发挥关键作用。为了应对病原体的扰动,植物调动了包括RKs和RLCKs在内的备用监测机制来抑制NLR免疫。这篇综述强调了最近在PRR和NLR信号之间的动态相互作用方面的进展,重点是蛋白激酶。
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引用次数: 0
Cell-death networks 细胞死亡的网络
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.028
Hamid Kashkar, Manolis Pasparakis
Cells can undergo death through various genetically regulated pathways, each leading to distinct tissue outcomes. Emerging evidence suggests that these pathways are molecularly interconnected, indicating that the mode of death is determined not only by apical signals but by the availability of terminal executioners/substrates. This evolving understanding challenges the traditional rigid classification of cell death and has important implications for its therapeutic targeting in diseases.
细胞可以通过各种基因调控的途径经历死亡,每种途径都会导致不同的组织结果。新出现的证据表明,这些途径在分子上相互关联,表明死亡模式不仅取决于顶端信号,还取决于末端刽子手/底物的可用性。这种不断发展的认识挑战了传统的细胞死亡的严格分类,并对其在疾病中的治疗靶向具有重要意义。
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引用次数: 0
Metabolites in the extracellular tumor microenvironment and the shaping of macrophage function 细胞外肿瘤微环境中的代谢物与巨噬细胞功能的形成
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.016
Sara Lamorte, Matthew Bianca, Zhe Qi Liu, Tracy L. McGaha
It has been a century since it was discovered that cancer cells have a distorted metabolism compared to healthy cells and tissues. It is now universally accepted that the abnormal metabolic state of cancers is essential for proliferation and survival in the harsh environment of most solid tumors. However, the impact of the altered metabolite pools generated from this rewiring is complex and has been challenging to functionally disentangle. Macrophages are innate immune cells and a major cellular constituent of the tumor microenvironment (TME). Macrophages are functionally plastic and highly sensitive to changes in metabolite exposure, with the potential to change the TME in a profound, disease-altering fashion. However, it was not until the recent advent of sensitive, high-dimensional analysis that the impact of metabolites on tumor macrophage diversity and function was fully appreciated. In this review, we discuss recent developments in our knowledge of how altered metabolites, resulting from metabolic reprogramming in the TME, influence macrophage phenotype and the implications for tumor development and progression. Furthermore, we examine emerging therapeutic strategies aimed at targeting tumor-metabolite crosstalk to improve disease outcomes.
一个世纪前,人们发现癌细胞与健康细胞和组织相比有一种扭曲的新陈代谢。目前人们普遍认为,在大多数实体瘤的恶劣环境中,肿瘤的异常代谢状态对于肿瘤的增殖和生存至关重要。然而,这种重新布线产生的代谢物池的改变的影响是复杂的,并且一直具有挑战性的功能解开。巨噬细胞是先天免疫细胞,是肿瘤微环境(TME)的主要细胞成分。巨噬细胞在功能上具有可塑性,对代谢物暴露的变化高度敏感,有可能以一种深刻的、改变疾病的方式改变TME。然而,直到最近敏感、高维分析的出现,人们才充分认识到代谢物对肿瘤巨噬细胞多样性和功能的影响。在这篇综述中,我们讨论了在TME代谢重编程导致的代谢物改变如何影响巨噬细胞表型以及对肿瘤发生和进展的影响方面的最新进展。此外,我们研究了针对肿瘤代谢物串扰的新兴治疗策略,以改善疾病预后。
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引用次数: 0
Activation and regulation of cGAS-STING signaling in cancer cells 癌细胞中cGAS-STING信号的激活与调控
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.08.030
Abraham Shim, Yanyang Chen, John Maciejowski
Genomic instability is a defining feature of cancer that fuels transformation, tumor evolution, and therapeutic resistance. However, genomic instability also incurs an immunological liability by generating cytosolic DNA, a potent trigger of cGAS-STING signaling. In this review, we summarize recent advances in our understanding of the sources of immunostimulatory cytosolic DNA in genomically unstable cancer cells. We examine how newly identified regulatory mechanisms, including chromatin-mediated cGAS suppression, influence the immune-activating potential of cytosolic DNA generated by genomic instability. We also highlight how key regulators, such as the exonuclease TREX1, may be co-opted to shield genomically unstable cancer cells from immune surveillance. By synthesizing these recent advances in our understanding of cGAS-STING activation and regulation in cancer, we aim to highlight emerging therapeutic strategies that leverage cGAS signaling to bolster antitumor immunity.
基因组不稳定性是癌症的一个决定性特征,它促进了转化、肿瘤进化和治疗耐药性。然而,基因组的不稳定性也会通过产生胞质DNA (cGAS-STING信号的有效触发因素)而导致免疫缺陷。在这篇综述中,我们总结了我们对基因组不稳定癌细胞中免疫刺激细胞质DNA来源的理解的最新进展。我们研究了新发现的调节机制,包括染色质介导的cGAS抑制,如何影响基因组不稳定产生的胞质DNA的免疫激活潜力。我们还强调了关键的调节因子,如外切酶TREX1,如何被选择来保护基因组不稳定的癌细胞免受免疫监视。通过综合我们对癌症中cGAS- sting激活和调控的理解的这些最新进展,我们的目标是强调利用cGAS信号来增强抗肿瘤免疫的新兴治疗策略。
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引用次数: 0
Caspase-8 loss stings the skin: STING drives necroptosis and interferonopathy Caspase-8缺失会刺激皮肤:STING会导致坏死下垂和干扰素病变
IF 16 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-10-16 DOI: 10.1016/j.molcel.2025.09.017
Shuqi Wang, Hongyan Guo
In a recent Nature paper, Kelepouras et al.1 uncover how STING licenses ZBP1-driven necroptosis through transcriptional priming and Z-nucleic acid amplification, revealing a pathogenic circuit in SAVI and highlighting the ZBP1-RIPK3-MLKL axis as a therapeutic target.
在最近发表于《自然》杂志的一篇论文中,Kelepouras等人揭示了STING如何通过转录启动和z -核酸扩增激活zbp1驱动的坏死性坏死,揭示了SAVI的致病回路,并强调了ZBP1-RIPK3-MLKL轴是一个治疗靶点。
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引用次数: 0
期刊
Molecular Cell
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