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Molecular-scale isotropic 3D super-resolution microscopy via interference localization 通过干涉定位的分子尺度各向同性3D超分辨率显微镜。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-02 DOI: 10.1038/s41592-025-02911-z
Shihang Luo  (, ), Xian’ao Zhao  (, ), Yuanyuan Li  (, ), Chunyan Fan  (, ), Ruina Liu  (, ), Ran Gong  (, ), Weixing Li  (, ), Nana Ma  (, ), Zhenghong Yang  (, ), Tao Xu  (, ), Wei Ji  (, ), Lusheng Gu  (, )
Three-dimensional (3D) nanoscale imaging reveals the detailed morphology of subcellular structures; however, conventional single-molecule localization microscopy is constrained by limited axial resolution. Here we introduce ROSE-3D, an interferometric localization approach that enables isotropic 3D super-resolution imaging with uniform performance across the entire depth of field. Compared with conventional astigmatism-based methods, ROSE-3D improves lateral localization precision by 2–6 times and axial precision by 3.5–8 times over a depth of field of approximately 1.2 μm. Leveraging its multicolor and whole-cell imaging capabilities, ROSE-3D resolves, in situ, the nanoscale organization of nuclear lamins and the assemblies of mitochondrial fission-related protein DRP1. These results establish ROSE-3D as a powerful tool for interrogating nanoscale cellular architecture. ROSE-3D is a single-molecule localization microscopy approach that achieves high isotropic resolution via interferometric localization. The approach is capable of whole-cell and multicolor imaging.
三维(3D)纳米级成像揭示了亚细胞结构的详细形态;然而,传统的单分子定位显微镜受限于有限的轴向分辨率。在这里,我们介绍了ROSE-3D,这是一种干涉定位方法,可以实现各向同性3D超分辨率成像,在整个景深范围内具有均匀的性能。与传统的基于像散的方法相比,在约1.2 μm的景深范围内,ROSE-3D的横向定位精度提高了2-6倍,轴向定位精度提高了3.5-8倍。利用其多色和全细胞成像能力,ROSE-3D可以原位解析核层的纳米级组织和线粒体分裂相关蛋白DRP1的组装。这些结果使ROSE-3D成为研究纳米级细胞结构的强大工具。
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引用次数: 0
CaBLAM: a high-contrast bioluminescent Ca2+ indicator derived from an engineered Oplophorus gracilirostris luciferase CaBLAM:一种高对比度的生物发光Ca2+指示剂,来源于一种工程的斜纹牛荧光素酶。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-02 DOI: 10.1038/s41592-025-02972-0
Gerard G. Lambert, Emmanuel L. Crespo, Jeremy Murphy, Kevin L. Turner, Emily Gershowitz, Michaela Cunningham, Daniela Boassa, Selena Luong, Dmitrijs Celinskis, Justine J. Allen, Stephanie Venn, Yunlu Zhu, Mürsel Karadas, Jiakun Chen, Roberta Marisca, Hannah Gelnaw, Daniel K. Nguyen, Junru Hu, Brittany N. Sprecher, Maya O. Tree, Richard Orcutt, Daniel Heydari, Aidan B. Bell, Albertina Torreblanca-Zanca, Ali Hakimi, Tim Czopka, Shy Shoham, Katherine I. Nagel, David Schoppik, Arturo Andrade, Diane Lipscombe, Christopher I. Moore, Ute Hochgeschwender, Nathan C. Shaner
Monitoring intracellular calcium is central to understanding cell signaling across nearly all cell types and organisms. Fluorescent genetically encoded calcium indicators (GECIs) remain the standard tools for in vivo calcium imaging, but require intense excitation light, leading to photobleaching, background autofluorescence and phototoxicity. Bioluminescent GECIs, which generate light enzymatically, eliminate these artifacts but have been constrained by low dynamic range and suboptimal calcium affinities. Here we show that CaBLAM (‘calcium bioluminescence activity monitor’), an engineered bioluminescent calcium indicator, achieves an order-of-magnitude improvement in signal contrast and a tunable affinity matched to physiological cytosolic calcium. CaBLAM enables single-cell and subcellular activity imaging at video frame rates in cultured neurons and sustained imaging over hours in awake, behaving animals. These capabilities establish CaBLAM as a robust and general alternative to fluorescent GECIs, extending calcium imaging to regimes where excitation light is undesirable or infeasible. CaBLAM is a bioluminescent genetically encoded calcium indicator that delivers high-contrast signals as shown in cell culture, in the in vivo mouse brain and in zebrafish larvae.
监测细胞内钙对于理解几乎所有细胞类型和生物体的细胞信号传导至关重要。荧光基因编码钙指示剂(GECIs)仍然是体内钙成像的标准工具,但需要强烈的激发光,导致光漂白、背景自身荧光和光毒性。生物发光的GECIs酶促发光,消除了这些伪影,但受到低动态范围和次优钙亲和力的限制。在这里,我们展示了CaBLAM(“钙生物发光活性监测器”),一种工程生物发光钙指示剂,在信号对比度方面取得了数量级的改善,并且与生理细胞质钙具有可调的亲和力。CaBLAM可以在培养的神经元中以视频帧率进行单细胞和亚细胞活动成像,并在清醒、行为正常的动物中持续成像数小时。这些功能使CaBLAM成为荧光GECIs的强大和通用替代品,将钙成像扩展到不希望或不可行的激发光。
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引用次数: 0
Parallel stopped-flow interrogation of diverse biological systems at the single-molecule scale 在单分子尺度上对不同生物系统的平行停流讯问。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-02 DOI: 10.1038/s41592-025-02944-4
Roman Kiselev, Ryan A. Brady, Arnab Modak, F. Aaron Cruz-Navarrete, Jose L. Alejo, Daniel S. Terry, Roger B. Altman, Wesley B. Asher, Jonathan A. Javitch, Scott C. Blanchard
Single-molecule imaging techniques have provided unprecedented insights into functional changes in composition and conformation across diverse biological systems. As with other biophysical methods, single-molecule fluorescence and Förster resonance energy transfer investigations are typically limited to examination of one sample at a time. Consequently, experimental throughput is restricted, and experimental variances are introduced that can obscure functional distinctions in closely related systems. Here, to address these limitations, we introduce parallel rapid exchange single-molecule fluorescence and single-molecule Förster resonance energy transfer to enable simultaneous steady-state and pre-steady-state interrogations of diverse systems. Using this approach, we elucidate the timing of distinct conformational events underpinning β-arrestin1 activation, unmask antibiotic-induced impacts on messenger RNA decoding fidelity and demonstrate that endogenously encoded ribosomal RNA sequence variation modulates antibiotic sensitivity. This generalizable and scalable method promises to broaden the scope and reproducibility of quantitative single-molecule interrogations of biomolecular function. Parallelized single-molecule fluorescence and single-molecule FRET experiments enable quantitative biophysics investigations of molecular function from multiple samples in a single experiment.
单分子成像技术对不同生物系统的组成和构象的功能变化提供了前所未有的见解。与其他生物物理方法一样,单分子荧光和Förster共振能量转移调查通常仅限于一次检查一个样品。因此,实验吞吐量受到限制,并且引入的实验方差可以模糊密切相关系统中的功能差异。在这里,为了解决这些限制,我们引入了平行快速交换单分子荧光和单分子Förster共振能量转移,以实现不同系统的稳态和预稳态同时询问。利用这种方法,我们阐明了支持β-arrestin1激活的不同构象事件的时间,揭示了抗生素诱导的对信使RNA解码保真度的影响,并证明内源性编码核糖体RNA序列变异调节抗生素敏感性。这种可推广和可扩展的方法有望扩大生物分子功能定量单分子询问的范围和可重复性。
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引用次数: 0
Multimodal foundation transformer models for multiscale genomics 多尺度基因组学的多模态基础变压器模型。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-01 DOI: 10.1038/s41592-025-02918-6
Sumeer Ahmad Khan, Xabier Martínez-de-Morentin, Abdel Rahman Alsabbagh, Alberto Maillo, Vincenzo Lagani, David Gomez-Cabrero, Robert Lehmann, Jesper Tegner
Transformer-based models are rapidly becoming foundational tools for analyzing and integrating multiscale biological data. This Perspective examines recent advances in transformer architectures, tracing their evolution from unimodal and augmented unimodal models to large-scale multimodal foundation models operating across genomic sequences, single-cell transcriptomics and spatial data. We categorize these models into three tiers and evaluate their capabilities for structural learning, representation transfer and tasks such as cell annotation, prediction and imputation. While discussing tokenization, interpretability and scalability challenges, we highlight emerging approaches that leverage masked modeling, contrastive learning and large language models. To support broader adoption, we provide practical guidance through code-based primers, using public datasets and open-source implementations. Finally, we propose designing a modular ‘Super Transformer’ architecture using cross-attention mechanisms to integrate heterogeneous modalities. This Perspective serves as a resource and roadmap for leveraging transformer models in multiscale, multimodal genomics. This Perspective overviews recent and emerging developments in building and using multimodal foundation models based on transformers for analyzing various types of genomics data.
基于变压器的模型正迅速成为分析和整合多尺度生物数据的基础工具。本展望研究了变压器结构的最新进展,追溯了它们从单峰和增强单峰模型到跨基因组序列、单细胞转录组学和空间数据操作的大规模多峰基础模型的演变。我们将这些模型分为三层,并评估了它们在结构学习、表征迁移和诸如细胞注释、预测和imputation等任务方面的能力。在讨论标记化、可解释性和可扩展性挑战时,我们强调了利用掩模、对比学习和大型语言模型的新兴方法。为了支持更广泛的应用,我们使用公共数据集和开源实现,通过基于代码的入门教程提供实用指导。最后,我们建议设计一个模块化的“超级变压器”架构,使用交叉注意机制来集成异构模式。本展望为利用多尺度、多模态基因组学中的变压器模型提供了资源和路线图。
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引用次数: 0
Next-generation method for preparing plant cells for single-cell RNA sequencing 制备单细胞RNA测序用植物细胞的新一代方法。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-01 DOI: 10.1038/s41592-025-02940-8
The plant cell wall makes the preparation of high-quality cells for single-cell RNA sequencing challenging. To tackle this issue, we developed FX-Cell, a method that enables the enzymatic digestion of the cell wall at high temperatures to result in high-quality single plant cells for transcriptome analysis.
植物细胞壁使单细胞RNA测序的高质量细胞的制备具有挑战性。为了解决这个问题,我们开发了FX-Cell,这种方法可以在高温下酶解细胞壁,从而获得高质量的单株植物细胞,用于转录组分析。
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引用次数: 0
Artificial intelligence foundation model automates cryo-EM structure determination 人工智能基础模型自动确定低温电镜结构。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-12-01 DOI: 10.1038/s41592-025-02917-7
We introduce the Cryo-EM Image Evaluation Foundation (Cryo-IEF) model, which has been pretrained on 65 million particle images in an unsupervised manner. Cryo-IEF excels in diverse cryogenic electron microscopy data-processing tasks; it automates the complex workflow and makes this technology more accessible and robust.
我们引入了Cryo-EM图像评估基础(Cryo-IEF)模型,该模型已经以无监督的方式对6500万张粒子图像进行了预训练。Cryo-IEF擅长各种低温电镜数据处理任务;它使复杂的工作流程自动化,并使该技术更易于访问和健壮。
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引用次数: 0
ExoSloNano: multimodal nanogold labels for identification of macromolecules in live cells and cryo-electron tomograms ExoSloNano:用于鉴定活细胞大分子和低温电子断层扫描的多模态纳米金标签。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-11-28 DOI: 10.1038/s41592-025-02928-4
Lindsey N. Young, Alice Sherrard, Huabin Zhou, Farhaz Shaikh, Joshua Hutchings, Margot Riggi, Mythreyi Narasimhan, W. Alexander Flaherty, Eric J. Bennett, Michael K. Rosen, Antonio J. Giraldez, Elizabeth Villa
In situ cryo-electron microscopy (cryo-EM) enables the direct interrogation of structure–function relationships by resolving macromolecular structures in their native cellular environment. Recent progress in sample preparation, imaging and data processing has enabled the identification and determination of large biomolecular complexes. However, the majority of proteins are of a size that still eludes identification in cellular cryo-EM data, and most proteins exist in low copy numbers. Therefore, novel tools are needed for cryo-EM to identify macromolecules across multiple size scales (from microns to nanometers). Here we introduce nanogold probes for detecting specific proteins using correlative light and electron microscopy, cryo-electron tomography (cryo-ET) and resin-embedded electron microscopy. These nanogold probes can be introduced into live cells, in a manner that preserves intact molecular networks and cell viability. We use this ExoSloNano system to identify both cytoplasmic and nuclear proteins by room-temperature electron microscopy, and resolve associated structures by cryo-ET. By providing high-efficiency protein labeling in live cells and molecular specificity within cryo-ET tomograms, ExoSloNano expands the proteome available to electron microscopy. The ExoSloNano system facilitates nanogold probe-based labeling of specific proteins of a wide range of sizes in live cells for cryo-electron tomography and correlative light and electron microscopy studies.
原位冷冻电子显微镜(cryo-EM)通过解析其原生细胞环境中的大分子结构,可以直接询问结构-功能关系。最近在样品制备、成像和数据处理方面的进展使鉴定和测定大型生物分子复合物成为可能。然而,大多数蛋白质的大小仍然无法在细胞冷冻电镜数据中识别,并且大多数蛋白质存在低拷贝数。因此,冷冻电镜需要新的工具来识别多个尺寸尺度(从微米到纳米)的大分子。在这里,我们介绍了纳米金探针用于检测特定蛋白质的相关光学和电子显微镜,冷冻电子断层扫描(cryo-ET)和树脂包埋电子显微镜。这些纳米金探针可以引入活细胞,以保持完整的分子网络和细胞活力的方式。我们使用ExoSloNano系统通过室温电子显微镜鉴定细胞质和核蛋白,并通过冷冻电镜分析相关结构。ExoSloNano通过在活细胞中提供高效的蛋白质标记和在冷冻et断层扫描中的分子特异性,将蛋白质组扩展到电子显微镜。
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引用次数: 0
DeepCor: denoising fMRI data with contrastive autoencoders DeepCor:用对比自编码器去噪fMRI数据。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-11-28 DOI: 10.1038/s41592-025-02967-x
Yu Zhu, Aidas Aglinskas, Stefano Anzellotti
Functional magnetic resonance imaging (fMRI) allows noninvasive measurement of neural activity with high spatial resolution. However, fMRI data are affected by noise. Here we introduce and evaluate a denoising method (DeepCor) that utilizes deep generative models to disentangle and remove noise. The method is applicable to data from single participants. DeepCor outperforms other state-of-the-art denoising approaches on a variety of simulated datasets. In real fMRI data, DeepCor enhances BOLD signal responses to face stimuli, outperforming CompCor by 215%. DeepCor is a deep-learning-based denoising approach for task-based and resting-state fMRI data that can be used even for single participants.
功能磁共振成像(fMRI)允许无创测量神经活动与高空间分辨率。然而,fMRI数据受到噪声的影响。在这里,我们介绍并评估了一种利用深度生成模型来分解和去除噪声的去噪方法(DeepCor)。该方法适用于单个参与者的数据。DeepCor在各种模拟数据集上优于其他最先进的去噪方法。在真实的fMRI数据中,DeepCor增强了BOLD信号对面部刺激的响应,比CompCor高出215%。
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引用次数: 0
Assessment of computational methods in predicting TCR–epitope binding recognition 预测tcr表位结合识别的计算方法评估。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-11-28 DOI: 10.1038/s41592-025-02910-0
Yanping Lu, Yuyan Wang, Meng Xu, Bingbing Xie, Yumeng Yang, Haodong Xu, Shengbao Suo
T cell receptors (TCRs) play a vital role in immune recognition by binding specific epitopes. Accurate prediction of TCR–epitope interactions is fundamental for advancing immunology research. Although numerous computational methods have been developed, a comprehensive evaluation of their performance remains lacking. Here we assessed 50 state-of-the-art TCR–epitope prediction models using 21 datasets covering 762 epitopes and hundreds of thousands binding TCRs. Our analysis revealed that the source of negative TCRs substantially impacts model accuracy, with external negatives potentially introducing uncontrolled confounders. Model performance generally improved with more TCRs per epitope, highlighting the importance of large and diverse datasets. Models incorporating multiple features typically outperformed those using only complementarity-determining region 3β information, yet all struggle to generalize to unseen epitopes. The use of independent test sets proved crucial for unbiased assessment on both seen and unseen epitopes. These insights will guide the development of more accurate and generalizable TCR–epitope prediction models for real-world applications. This Analysis benchmarks 50 state-of-the-art TCR–epitope binding prediction methods and evaluates key factors that influence predictive performance.
T细胞受体(TCRs)通过结合特异性表位在免疫识别中发挥重要作用。准确预测tcr -表位相互作用是推进免疫学研究的基础。尽管已经开发了许多计算方法,但仍然缺乏对其性能的全面评估。在这里,我们使用21个数据集评估了50个最先进的tcr -表位预测模型,涵盖762个表位和数十万个结合tcr。我们的分析显示,负tcr的来源极大地影响了模型的准确性,外部负因素可能会引入不受控制的混杂因素。随着每个表位的tcr增加,模型性能普遍提高,这突出了大型和多样化数据集的重要性。包含多个特征的模型通常优于仅使用互补决定区域3β信息的模型,但所有模型都难以推广到看不见的表位。独立测试集的使用证明了对可见和未见表位进行公正评估的关键。这些见解将指导开发更准确和可推广的tcr表位预测模型,用于实际应用。
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引用次数: 0
A comprehensive foundation model for cryo-EM image processing 低温电镜图像处理的综合基础模型。
IF 32.1 1区 生物学 Q1 BIOCHEMICAL RESEARCH METHODS Pub Date : 2025-11-27 DOI: 10.1038/s41592-025-02916-8
Yang Yan, Shiqi Fan, Fajie Yuan, Huaizong Shen
Cryogenic electron microscopy (cryo-EM) has become a premier technique for determining high-resolution structures of biological macromolecules. However, its broad application is constrained by the demand for specialized expertise. Here, to address this limitation, we introduce the Cryo-EM Image Evaluation Foundation (Cryo-IEF) model, a versatile tool pre-trained on ~65 million cryo-EM particle images through unsupervised learning. Cryo-IEF performs diverse cryo-EM processing tasks, including particle classification by structure, pose-based clustering and image quality assessment. Building on this foundation, we developed CryoWizard, a fully automated single-particle cryo-EM processing pipeline enabled by fine-tuned Cryo-IEF for efficient particle quality ranking. CryoWizard resolves high-resolution structures across samples of varied properties and effectively mitigates the prevalent challenge of preferred orientation in cryo-EM. Cryo-IEF is a pre-trained foundation model for performing diverse image-processing tasks in single-particle cryo-EM. CryoWizard, enabled by Cryo-IEF, is a fully automated cryo-EM processing pipeline.
低温电子显微镜(cryo-EM)已成为确定生物大分子高分辨率结构的首要技术。然而,它的广泛应用受到对专门知识的需求的限制。在这里,为了解决这一限制,我们引入了Cryo-EM图像评估基础(Cryo-IEF)模型,这是一个通过无监督学习对约6500万Cryo-EM颗粒图像进行预训练的多功能工具。Cryo-IEF执行各种cryo-EM处理任务,包括按结构进行粒子分类、基于姿态的聚类和图像质量评估。在此基础上,我们开发了CryoWizard,这是一个全自动的单粒子低温电镜处理管道,通过微调的低温ief实现有效的粒子质量排序。CryoWizard解决了不同性质样品的高分辨率结构,并有效地缓解了低温电镜中首选取向的普遍挑战。
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引用次数: 0
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