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Molecular Neurodegeneration最新文献

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The complement cascade in Alzheimer's disease: modern implications of an ancient immune protagonist. 阿尔茨海默病的补体级联:一个古老的免疫主角的现代含义。
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-15 DOI: 10.1186/s13024-025-00916-y
Maria-Tzousi Papavergi,Praveen Bathini,Brijendra Singh,Cynthia A Lemere
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引用次数: 0
Targeted deletion of EMMPRIN in microglia/macrophages mitigates neuronal death in intracerebral hemorrhage. 小胶质细胞/巨噬细胞EMMPRIN的靶向缺失减轻脑出血中神经元的死亡。
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-13 DOI: 10.1186/s13024-025-00917-x
Zhe Li,Xiangyu Zhang,Maryam Mobarakabadi,Yang Liu,Ruixue Wei,Claudia Silva,Frank Visser,Antoine Dufour,Daniel Young,Deepak Kaushik,V Wee Yong,Mengzhou Xue
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引用次数: 0
The pesticide chlorpyrifos increases the risk of Parkinson's disease. 农药毒死蜱会增加患帕金森病的风险。
IF 17.5 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-11 DOI: 10.1186/s13024-025-00915-z
Kazi Md Mahmudul Hasan, Lisa M Barnhill, Kimberly C Paul, Chao Peng, William Zeiger, Beate Ritz, Marisol Arellano, Michael Ajnassian, Shujing Zhang, Aye Theint Theint, Gazmend Elezi, Hilli Weinberger, Julian P Whitelegge, Qing Bai, Sharon Li, Edward A Burton, Jeff M Bronstein
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引用次数: 0
Diagnostic biomarkers for α-synucleinopathies- state of the art and future developments: a systematic review. α-突触核蛋白病的诊断生物标志物-现状和未来发展:系统回顾。
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-04 DOI: 10.1186/s13024-025-00914-0
V Donadio,M Ingelsson,G Rizzo,A Furia,A Incensi,C Delprete,M Pinho,R Liguori,S Pritzkow
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引用次数: 0
DAP12 deletion reduces neuronal SLIT2 and demyelination and enhances brain resilience in female tauopathy mice. DAP12缺失减少雌性牛头病小鼠的神经元SLIT2和脱髓鞘,增强脑弹性。
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-02 DOI: 10.1186/s13024-025-00903-3
Hao Chen,Li Fan,Qi Guo,Man Ying Wong,Jingjie Zhu,Nessa Foxe,Winston Wang,Aviram Nessim,Gillian Carling,Bangyan Liu,Chloe Lopez-Lee,Yige Huang,Sadaf Amin,Tark Patel,Sue-Ann Mok,Won-Min Song,Bin Zhang,Shiaoching Gong,Qin Ma,Hongjun Fu,Li Gan,Wenjie Luo
BACKGROUNDPathogenic tau accumulation drives neurodegeneration in Alzheimer's disease (AD). Enhancing the aging brain's resilience to tau pathology would lead to novel therapeutic strategies. DAP12 (DNAX-activation protein 12), highly and selectively expressed by microglia, plays a crucial role in microglial immune responses. Previous studies have shown that tauopathy mice lacking DAP12 exhibit higher tau pathology but are protected from tau pathology-induced cognitive deficits. However, the exact mechanism behind this resilience remains elusive.METHODSWe investigated the effects of DAP12 deletion on tau pathology, as well as tau-induced brain inflammation and neurodegeneration, in homozygous human Tau P301S transgenic mice. In addition, we conducted single-nucleus RNA sequencing of hippocampal tissues to examine cell type-specific transcriptomic changes at the single-cell level. Furthermore, we utilized the CellChat package to profile cell-cell communication in the mouse brain and investigated how these interactions are affected by tau pathology and Dap12 deletion.RESULTSWe demonstrated that Dap12 deletion reduced tau processing in primary microglia and increased tau pathology in female tauopathy mice, with minimal effects on males. Despite this, Dap12 deletion markedly reduced brain inflammation, synapse loss, and demyelination, indicating enhanced resilience to tau toxicity. Single-cell transcriptomic profiling revealed that Dap12 deletion blocked tau-induced alterations in microglia, neurons, and oligodendrocytes. CellChat analysis identified aberrant tau-induced SLIT2 signaling from excitatory neurons to oligodendrocytes. Dap12 deletion suppressed Slit2 upregulation and mitigated demyelination, while lentiviral-Slit2 overexpression induced myelin loss in tauopathy mice. Elevated SLIT2 levels were associated with demyelination in tauopathy mouse model and human AD brains. Spatial transcriptomics revealed a spatial correlation of SLIT2 expression and tau pathology in AD brain tissue.CONCLUSIONSOur study identifies a novel DAP12-dependent mechanistic link between upregulated Slit2 expression in excitatory neurons and oligodendrocyte-dependent myelination loss in tauopathy. Despite elevating tau load, the absence of microglial Dap12 ameliorates neuroinflammation and improves brain functions in tauopathy mice. Our study suggests that selectively targeting the toxic aspects of DAP12 signaling while preserving its beneficial functions may be a promising strategy to enhance brain resilience in AD.
背景:致病性tau积聚驱动阿尔茨海默病(AD)的神经变性。增强老化的大脑对tau病理的恢复能力将导致新的治疗策略。DAP12 (DNAX-activation protein 12)在小胶质细胞中高度选择性表达,在小胶质细胞免疫应答中起着至关重要的作用。先前的研究表明,缺乏DAP12的tau病小鼠表现出更高的tau病理,但可以保护tau病理诱导的认知缺陷。然而,这种弹性背后的确切机制仍然难以捉摸。方法研究DAP12缺失对纯合子人tau P301S转基因小鼠tau病理、tau诱导的脑炎症和神经变性的影响。此外,我们对海马组织进行了单核RNA测序,以在单细胞水平上检测细胞类型特异性转录组变化。此外,我们利用CellChat包来分析小鼠大脑中的细胞-细胞通信,并研究了这些相互作用如何受到tau病理和Dap12缺失的影响。结果我们证明Dap12缺失减少了雌性tau病小鼠原发性小胶质细胞中的tau加工,增加了tau病理,而对雄性的影响很小。尽管如此,Dap12缺失显著减少了脑炎症、突触丢失和脱髓鞘,表明对tau毒性的恢复能力增强。单细胞转录组分析显示,Dap12缺失阻断了tau诱导的小胶质细胞、神经元和少突胶质细胞的改变。CellChat分析发现了异常的tau诱导的SLIT2信号从兴奋性神经元到少突胶质细胞。Dap12缺失抑制了Slit2上调并减轻了脱髓鞘,而慢病毒-Slit2过表达诱导了tau病小鼠的髓磷脂丢失。在牛头病小鼠模型和人类AD大脑中,升高的SLIT2水平与脱髓鞘有关。空间转录组学揭示了AD脑组织中SLIT2表达与tau病理的空间相关性。我们的研究发现了一种新的依赖dap12的机制,在兴奋性神经元中上调的Slit2表达与tau病中依赖少突胶质细胞的髓鞘形成丧失之间存在联系。尽管tau负荷升高,但小胶质细胞Dap12的缺失改善了tau病小鼠的神经炎症并改善了脑功能。我们的研究表明,在保留其有益功能的同时,选择性地靶向DAP12信号的毒性方面可能是增强AD患者大脑恢复能力的一种有希望的策略。
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引用次数: 0
Pioglitazone modulates metabolic adaptation and peripheral nerve regeneration after injury. 吡格列酮调节损伤后的代谢适应和周围神经再生。
IF 17.5 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-01 DOI: 10.1186/s13024-025-00913-1
Antonia Seitz, Taylan Özöncü, Daniela Sinske, Claudia Klugmann, Daniel Tews, Pamela Fischer-Posovszky, Bernd Knöll, Sofia Meyer Zu Reckendorf

Peripheral nerves have an intrinsic capacity for regeneration after traumatic injury, with Schwann cells (SCs) playing a central role in orchestrating this complex process. Critical components of successful regeneration include SC reprogramming into repair SCs, debris removal and metabolic adaptations. Up to now, there are no pharmacological treatments available in the clinics to improve nerve regeneration. In this study, we investigated peroxisome proliferator-activated receptor gamma (PPARɣ) as a therapeutic target in the context of nerve regeneration, since we previously found this transcription factor to be involved in SC reprograming and metabolic adaptations. Therefore, we used a mouse model of sciatic nerve crush injury and applied the PPARɣ agonist pioglitazone (PIO) in two different treatment paradigms: (i) acutely after injury (0-5 days post injury) and (ii) delayed (5-21 days post injury), thereby addressing different phases of regeneration. Our findings revealed that PIO treatment immediately following nerve injury (first treatment paradigm) disrupted SC transition into the repair phenotype and diminished the physiological inflammatory response. As a consequence, axonal and myelin debris clearance was delayed, ultimately resulting in impaired axonal outgrowth and nerve regeneration. In the second treatment paradigm (PIO administration starting five days after injury) SCs had already acquired the repair phenotype and immune cell infiltration had taken place when PIO administration started. There, PIO promoted axonal regeneration, enhanced remyelination, and improved functional recovery. Importantly, PIO treatment increased mitochondrial content in neurons and SCs. In addition, delayed application of PIO induced lipid metabolism, glycolysis and ATP production in SCs, leading to the assumption that improved metabolic conditions mediate enhanced nerve regeneration in this treatment paradigm. These findings show that depending on the timing of PIO treatment, PPARɣ can serve as a potential therapeutic agent to improve nerve regeneration by promoting key metabolic adaptations.

周围神经在创伤后具有内在的再生能力,而雪旺细胞(SCs)在协调这一复杂过程中起着核心作用。成功再生的关键组成部分包括SC重编程为修复SC,碎片清除和代谢适应。到目前为止,临床上还没有药物治疗来改善神经再生。在这项研究中,我们研究了过氧化物酶体增殖物激活受体γ (PPAR)作为神经再生背景下的治疗靶点,因为我们之前发现这种转录因子参与SC重编程和代谢适应。因此,我们使用小鼠坐骨神经挤压损伤模型,并在两种不同的治疗模式下应用PPAR受体激动剂吡格列酮(PIO): (i)损伤后急性(损伤后0-5天)和(ii)延迟(损伤后5-21天),从而解决不同阶段的再生。我们的研究结果表明,在神经损伤后立即进行PIO治疗(第一种治疗模式)会破坏SC向修复表型的转变,并减少生理炎症反应。结果,轴突和髓鞘碎片清除延迟,最终导致轴突生长和神经再生受损。在第二种治疗模式(损伤后5天开始给予PIO)中,SCs已经获得修复表型,并且在PIO开始时免疫细胞已经发生浸润。在那里,PIO促进轴突再生,增强髓鞘再生,改善功能恢复。重要的是,PIO处理增加了神经元和sc中的线粒体含量。此外,延迟应用PIO诱导SCs中的脂质代谢、糖酵解和ATP产生,导致假设在这种治疗模式中,代谢条件的改善介导了神经再生的增强。这些发现表明,根据PIO治疗的时机,PPAR可作为一种潜在的治疗剂,通过促进关键的代谢适应来改善神经再生。
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引用次数: 0
Domain mapping of disease mutations reveals pathogenic SORL1 variants in Alzheimer's disease. 疾病突变的结构域作图揭示了阿尔茨海默病的致病性SORL1变异。
IF 17.5 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-12-01 DOI: 10.1186/s13024-025-00907-z
Olav M Andersen, Matthijs W J de Waal, Giulia Monti, Niccolo Tesi, Anne Mette G Jensen, Christa de Geus, Rosalina van Spaendonk, Maartje Vogel, Shahzad Ahmad, Najaf Amin, Philippe Amouyel, Gary W Beecham, Céline Bellenguez, Claudine Berr, Joshua C Bis, Anne Boland, Paola Bossù, Femke Bouwman, Jose Bras, Camille Charbonnier, Jordi Clarimon, Carlos Cruchaga, Antonio Daniele, Jean-François Dartigues, Stéphanie Debette, Jean-François Deleuze, Nicola Denning, Anita L DeStefano, Oriol Dols-Icardo, Cornelia M van Duijn, Lindsay A Farrer, Maria Victoria Fernández, Wiesje M van der Flier, Nick C Fox, Daniela Galimberti, Emmanuelle Genin, Johan J P Gille, Benjamin Grenier-Boley, Detelina Grozeva, Yann Le Guen, Rita Guerreiro, Jonathan L Haines, Clive Holmes, Holger Hummerich, M Arfan Ikram, M Kamran Ikram, Amit Kawalia, Robert Kraaij, Jean-Charles Lambert, Marc Lathrop, Afina W Lemstra, Alberto Lleó, Richard M Myers, Marcel M A M Mannens, Rachel Marshall, Eden R Martin, Carlo Masullo, Richard Mayeux, Simon Mead, Patrizia Mecocci, Alun Meggy, Merel O Mol, Benedetta Nacmias, Adam C Naj, Valerio Napolioni, J Nicholas Cochran, Gaël Nicolas, Florence Pasquier, Pau Pastor, Margaret A Pericak-Vance, Yolande A L Pijnenburg, Fabrizio Piras, Olivier Quenez, Alfredo Ramirez, Rachel Raybould, Richard Redon, Marcel J T Reinders, Anne-Claire Richard, Steffi G Riedel-Heller, Fernando Rivadeneira, Jeroen G J van Rooij, Stéphane Rousseau, Natalie S Ryan, Pascual Sanchez-Juan, Gerard D Schellenberg, Philip Scheltens, Jonathan M Schott, Sudha Seshadri, Daoud Sie, Rebecca Sims, Erik A Sistermans, Sandro Sorbi, John C van Swieten, Betty Tijms, André G Uitterlinden, Pieter Jelle Visser, Michael Wagner, David Wallon, Li-San Wang, Julie Williams, Jennifer S Yokoyama, Aline Zarea, Sven J van der Lee, Johan G Olsen, Marc Hulsman, Henne Holstege
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引用次数: 0
Multidomain therapy for Alzheimer’s disease: a scoping review of cognitive decline trials 阿尔茨海默病的多领域治疗:认知能力下降试验的范围综述
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-11-22 DOI: 10.1186/s13024-025-00912-2
Jared C. Roach, Gwênlyn Glusman, Molly K. Rapozo, David A. Merrill, Jennifer Bramen, John F. Hodes, Prabha Siddarth, Somayeh Meysami, Shannel H. K. Elhelou, Ryan M. Glatt, Lance Edens, Cory Funk, Dan Kelly, William R. Shankle, Dale Bredesen, Cyrus A. Raji, Leroy Hood
Alzheimer’s disease (AD) leading to cognitive decline and dementia results from the interplay of multiple interacting dysfunctional biological systems. These systems can be categorized by domain, such as inflammation, cardiovascular health, proteostasis, or metabolism. Specific causes of AD differ between individuals, but each individual is likely to have causes stemming from multiple domains. Personalized multidomain therapy has been proposed as a standard of care for AD. We sought to enumerate and describe prospective randomized controlled trials (RCTs) for multidomain interventions for AD, and to extract their inclusion criteria, trial design parameters (length, number of participants), and outcome measures. We sought to clarify gaps and opportunities in research and clinical translation. We conducted a scoping review using the standardized PRISMA-ScR methodological framework. We include all cohort studies and RCTs for multidomain (also known as multimodal, multicomponent, multidimensional, or multisystem) therapy of any stage of AD, published for all dates through July 28, 2025. There have been 23 studies (completed or reported as ongoing) of multidomain interventions for AD, including 19 RCTs. Of the 15 completed RCTs, 12 demonstrate benefit from their intervention in at least one arm. Although these RCTs differ widely in their parameters, the majority support the use of multidomain therapy, and show effect sizes greater than reported for unimodal therapies, including pharmaceuticals. Multidomain therapy should be the standard of care for AD. Multidomain interventions (also known as treatments) should be employed widely, early, and first-line. Treatment or prevention is likely to be most effective at early, presymptomatic stages, but is worthwhile at all stages of disease. In order to influence multiple domains, multiple modes of therapy are likely necessary in all patients. Some individual modes, such as particular lifestyle interventions, may target multiple domains. Nevertheless, most patients will benefit from multiple modes of intervention (multimodal intervention) that together target multiple domains. Standard-of-care guidelines should explicitly include multidomain interventions. Future clinical trials must be designed to iteratively improve multidomain therapies. Payors should embrace reimbursement for effective multidomain intervention, including personalized coaching.
阿尔茨海默病(AD)导致认知能力下降和痴呆是多个相互作用的功能失调生物系统相互作用的结果。这些系统可以按领域分类,如炎症、心血管健康、蛋白质平衡或代谢。阿尔茨海默病的具体原因因人而异,但每个人都可能有来自多个领域的原因。个性化多域治疗已被提出作为AD的标准治疗。我们试图列举和描述针对AD多领域干预的前瞻性随机对照试验(rct),并提取其纳入标准、试验设计参数(长度、参与者数量)和结果测量。我们试图澄清研究和临床翻译中的差距和机会。我们使用标准化的PRISMA-ScR方法框架进行了范围审查。我们纳入了截至2025年7月28日所有发表的针对任何阶段AD的多域(也称为多模态、多组分、多维或多系统)治疗的所有队列研究和随机对照试验。已有23项研究(已完成或正在报道)对阿尔茨海默病进行多领域干预,包括19项随机对照试验。在完成的15项随机对照试验中,12项显示至少有一组从他们的干预中获益。尽管这些随机对照试验的参数差异很大,但大多数支持使用多域治疗,并显示出比单峰治疗(包括药物治疗)更大的效应值。多领域治疗应该成为AD的标准治疗。应广泛、早期和一线采用多领域干预措施(也称为治疗)。治疗或预防可能在症状前的早期阶段最有效,但在疾病的所有阶段都是值得的。为了影响多个领域,可能需要对所有患者采用多种治疗模式。一些个体模式,如特定的生活方式干预,可能针对多个领域。然而,大多数患者将受益于针对多个领域的多种干预模式(multimodal intervention)。标准治疗指南应明确包括多领域干预措施。未来的临床试验必须设计为迭代改进多领域治疗。付款人应该接受报销有效的多领域干预,包括个性化指导。
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引用次数: 0
Death-associated protein kinase 1-dependent SENP1 degradation increases tau SUMOylation and leads to cognitive dysfunction in a mouse model for tauopathy 在tau病小鼠模型中,死亡相关蛋白激酶1依赖的SENP1降解增加tau summoylation并导致认知功能障碍
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-11-21 DOI: 10.1186/s13024-025-00911-3
Xindong Shui, Xiaoqing Zheng, Jinfeng Wu, Mi Zhang, Gamin Kim, Renxuan Chen, Lianlian Peng, Zonghai Wang, Yameng Zheng, Ling Zhang, Ruomeng Li, Long Wang, Ying Zhou, Jungho Kim, Dongmei Chen, Tao Zhang, Tae Ho Lee
Emerging evidence implicates that tau SUMOylation disrupts tau homeostasis. Death-associated protein kinase 1 (DAPK1) has been shown to affect tau phosphorylation and accumulation. The sentrin-specific protease 1 (SENP1) is important for protein SUMOylation, and is a potential substrate of DAPK1. However, whether DAPK1 regulates tau SUMOylation and proteostasis through modulating SENP1 remains elusive. We identified the phosphorylation of SENP1 by DAPK1 using in vitro kinase assay and mass spectrometry. The influence of DAPK1 on SENP1 expression, tau SUMOylation and phosphorylation was analyzed using a mouse model for tauopathy by overexpressing human tau in the hippocampal CA3 region, as well as using human AD brain tissues. DAPK1 genetic ablation or pharmacological inhibition was applied to assess the impact of DAPK1 on tau accumulation-related pathologies including synaptic dysfunction and gliosis. The cognitive and emotional functions were evaluated using Y-maze, novel object recognition test, Morris water maze, open field test, and elevated plus maze. DAPK1 directly interacts with and phosphorylates SENP1, leading to SENP1 degradation via the ubiquitin-proteasome pathway. DAPK1 promotes tau SUMOylation by suppressing SENP1 expression in neurons. DAPK1 downregulation or pharmacological inhibition restores SENP1 level and reduces tau SUMOylation, resulting in an attenuation of aberrant tau phosphorylation and accumulation, which ultimately contributes to improved cognitive ability in vivo. We show that DAPK1 expression is negatively correlated with SENP1 level in human AD hippocampal tissues. DAPK1-mediated SENP1 phosphorylation and degradation promote tau SUMOylation, exacerbating tau pathology and cognitive dysfunction in tauopathy. Our findings highlight the DAPK1-SENP1-tau SUMOylation axis as a critical regulator of tau homeostasis, and establish DAPK1 inhibition as a promising therapeutic strategy for AD and related tauopathies.
新出现的证据表明,tau summoylation会破坏tau的稳态。死亡相关蛋白激酶1 (DAPK1)已被证明影响tau磷酸化和积累。sentrin特异性蛋白酶1 (SENP1)对蛋白质sumo化很重要,是DAPK1的潜在底物。然而,DAPK1是否通过调节SENP1来调节tau SUMOylation和蛋白静止仍然是未知的。我们使用体外激酶测定和质谱法鉴定了DAPK1对SENP1的磷酸化作用。通过在海马CA3区过表达人tau,以及使用人AD脑组织,分析了DAPK1对SENP1表达、tau sumo化和磷酸化的影响。应用DAPK1基因消融或药理抑制来评估DAPK1对tau积累相关病理的影响,包括突触功能障碍和胶质细胞增生。采用y型迷宫、新物体识别测验、Morris水迷宫、空地测验和高架迷宫等方法评价大鼠的认知功能和情绪功能。DAPK1直接与SENP1相互作用并磷酸化SENP1,通过泛素-蛋白酶体途径导致SENP1降解。DAPK1通过抑制神经元中SENP1的表达来促进tau summoylation。DAPK1下调或药物抑制恢复SENP1水平,降低tau SUMOylation,导致异常tau磷酸化和积累的衰减,最终有助于提高体内认知能力。我们发现,在人AD海马组织中,DAPK1表达与SENP1水平呈负相关。dapk1介导的SENP1磷酸化和降解促进tau SUMOylation,加剧tau病理和tau病的认知功能障碍。我们的研究结果强调了DAPK1- senp1 -tau summoylation轴是tau稳态的关键调节因子,并建立了DAPK1抑制作为AD和相关tau病变的有希望的治疗策略。
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引用次数: 0
High-sensitivity plasma proteomics reveals disease-specific signatures and predictive biomarkers of Alzheimer’s disease phenotypes in a large mixed-dementia cohort 高灵敏度血浆蛋白质组学揭示了大型混合痴呆队列中阿尔茨海默病表型的疾病特异性特征和预测性生物标志物
IF 15.1 1区 医学 Q1 NEUROSCIENCES Pub Date : 2025-11-17 DOI: 10.1186/s13024-025-00909-x
Katherine Gong, Jigyasha Timsina, Muhammad Ali, Yike Chen, Menghan Liu, Ciyang Wang, Cyril Pottier, Geoffrey K. Feld, Gyujin Heo, Tammie L. S. Benzinger, Cyrus A. Raji, Beau Ances, Brian A. Gordon, Julie K. Wisch, Suzanne E. Schindler, John C. Morris, David M. Holtzman, Laura Ibanez, Carlos Cruchaga
Novel plasma assays enabled accurate blood-based biomarkers for neurodegenerative diseases with minimally invasive options for clinical use. Large-scale studies encompassing multiple neurodegenerative diseases using novel multiplex platforms are essential to uncover disease-specific biomarkers and pathways. We generated and analyzed plasma biomarker data using the NULISAseq™ CNS Panel from 3,232 participants with Alzheimer disease (AD), Dementia with Lewy bodies (DLB), Frontotemporal dementia (FTD), Parkinson disease (PD) and cognitively unimpaired individuals, from the Charles F. and Joanne Knight Alzheimer Disease Research Center. We identified proteins associated with disease status and AD-related phenotypes (Clinical Dementia Rating®, CSF Aβ42/Aβ40, Amyloid-PET, and Tau-PET). These proteins were used to identify disease-specific biomarkers and perform pathway analyses. We identified 81 proteins associated with AD, 21 with DLB, four with FTD, and 52 with PD after multiple test correction. Disease comparison showed that PD and DLB had the highest similarity, followed by AD and DLB. Concurrently, each disease also presented disease-specific signatures. Some AD-specific proteins included p-tau217; MSLN and SAA1 were specific to DLB, and FLT1 and PARK7 to PD. We also identified eight proteins associated with Amyloid-PET, eight with Tau-PET, 14 with CSF Aβ42/40 ratio, and 72 with CDR, some of which were specific to each phenotype. We used a data-driven approach to identify the p-tau217 cut-off for biomarker positivity. Plasma p-tau217 achieved an AUC of 0.81 (95% CI: 0.79–0.83) for AD diagnosis and 0.96 (95% CI: 0.94–0.98) for Amyloid positivity. P-tau217 had 93.77% agreement with Amyloid-PET status. Proteins associated with AD were enriched in protein-lipid complex binding pathway, whereas PD associated proteins were enriched in laminin-related pathways. FTD associated proteins were enriched in cytoskeleton proteins. This is the largest plasma NULISA CNS study performed till date and covers the four major neurodegenerative diseases: AD, PD, DLB and FTD. We validated the high classification accuracy of the NULISA plasma p-tau217 and its strong correlation with Amyloid-PET status. We also identified disease-specific proteins that could enhance differential diagnosis. These findings highlight the potential of the NULISA platform as a reliable quantitative tool for research and clinical applications in neurodegenerative diseases.
新型血浆检测技术为神经退行性疾病提供了准确的血液生物标志物,具有微创的临床应用选择。大规模研究包括多种神经退行性疾病使用新的多重平台是必要的,以发现疾病特异性的生物标志物和途径。我们使用NULISAseq™CNS Panel生成并分析了来自Charles F. and Joanne Knight阿尔茨海默病研究中心的3232名阿尔茨海默病(AD)、路易体痴呆(DLB)、额颞叶痴呆(FTD)、帕金森病(PD)和认知未受损个体的血浆生物标志物数据。我们确定了与疾病状态和ad相关表型相关的蛋白(临床痴呆评级®,CSF Aβ42/Aβ40,淀粉样蛋白- pet和Tau-PET)。这些蛋白质被用于识别疾病特异性生物标志物并进行途径分析。经过多次测试校正,我们鉴定出81种与AD相关的蛋白,21种与DLB相关,4种与FTD相关,52种与PD相关。疾病比较显示,PD与DLB相似度最高,AD与DLB次之。同时,每种疾病也呈现出疾病特有的特征。一些ad特异性蛋白包括p-tau217;MSLN和SAA1特异于DLB, FLT1和PARK7特异于PD。我们还鉴定了8个与淀粉样蛋白- pet相关的蛋白,8个与Tau-PET相关的蛋白,14个与CSF a - β42/40比例相关的蛋白,72个与CDR相关的蛋白,其中一些蛋白对每种表型都是特异性的。我们使用数据驱动的方法来确定p-tau217生物标志物阳性的截止值。血浆p-tau217诊断AD的AUC为0.81 (95% CI: 0.79-0.83),淀粉样蛋白阳性的AUC为0.96 (95% CI: 0.94-0.98)。P-tau217与Amyloid-PET状态的一致性为93.77%。AD相关蛋白在蛋白-脂质复合物结合途径中富集,PD相关蛋白在层粘连蛋白相关途径中富集。FTD相关蛋白在细胞骨架蛋白中富集。这是迄今为止进行的最大的血浆NULISA CNS研究,涵盖了四种主要的神经退行性疾病:AD、PD、DLB和FTD。我们验证了NULISA血浆p-tau217的高分类准确性及其与淀粉样蛋白- pet状态的强相关性。我们还发现了可以增强鉴别诊断的疾病特异性蛋白。这些发现突出了NULISA平台作为神经退行性疾病研究和临床应用的可靠定量工具的潜力。
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Molecular Neurodegeneration
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