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Gold-siRNA supraclusters enhance the anti-tumor immune response of stereotactic ablative radiotherapy at primary and metastatic tumors 金-siRNA超簇可增强原发性和转移性肿瘤立体定向消融放疗的抗肿瘤免疫反应
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-24 DOI: 10.1038/s41587-024-02448-0
Yuyan Jiang, Hongbin Cao, Huaping Deng, Li Guan, Jimpi Langthasa, Deana Rae Crystal Colburg, Stavros Melemenidis, Renee M. Cotton, John Aleman, Xiao-Jing Wang, Edward E. Graves, Anusha Kalbasi, Kanyi Pu, Jianghong Rao, Quynh-Thu Le

Strategies to enhance the anti-tumor immune response of stereotactic ablative radiotherapy (SABR) at primary tumors and abscopal sites are under intensive investigation. Here we report a metabolizable binary supracluster (BSCgal) that combines gold nanoclusters as radiosensitizing adjuvants with small interfering RNA (siRNA) targeting the immunosuppressive mediator galectin-1 (Gal-1). BSCgal comprises reversibly crosslinked cationic gold nanoclusters and siRNA complexes in a polymer matrix that biodegrades over weeks, facilitating clearance (90.3% in vivo clearance at 4 weeks) to reduce toxicity. The particle size well above the renal filtration threshold facilitates passive delivery to tumors. Using mouse models of head and neck cancer, we show that BSCgal augments the radiodynamic and immunotherapeutic effects of SABR at the primary and metastatic tumors by promoting tumor-inhibitory leukocytes, upregulating cytotoxic granzyme B and reducing immunosuppressive cell populations. It outperforms SABR plus Gal-1 antagonists, chemoradiation drug cisplatin or PD-1 inhibitor. This work presents a translatable strategy to converge focal radiosensitization with targeted immune checkpoint silencing for personalized radioimmunotherapy.

目前正在深入研究增强原发性肿瘤和腹腔部位立体定向消融放疗(SABR)的抗肿瘤免疫反应的策略。在这里,我们报告了一种可代谢的二元超簇(BSCgal),它将作为放射增敏佐剂的金纳米簇与靶向免疫抑制介质 galectin-1 (Gal-1) 的小干扰 RNA (siRNA) 结合在一起。BSCgal 由聚合物基质中的可逆交联阳离子金纳米团簇和 siRNA 复合物组成,可在数周内生物降解,促进清除(4 周时体内清除率为 90.3%),从而降低毒性。颗粒大小远高于肾脏过滤阈值,有利于被动输送到肿瘤。通过使用头颈部癌症小鼠模型,我们发现 BSCgal 通过促进抑制肿瘤的白细胞、上调细胞毒性颗粒酶 B 和减少免疫抑制细胞群,增强了 SABR 对原发性和转移性肿瘤的放射动力和免疫治疗效果。它的疗效优于 SABR 加 Gal-1 拮抗剂、化疗药物顺铂或 PD-1 抑制剂。这项研究提出了一种可转化的策略,将病灶放射增敏与靶向免疫检查点沉默结合起来,实现个性化放射免疫疗法。
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引用次数: 0
A structurally informed human protein–protein interactome reveals proteome-wide perturbations caused by disease mutations 从结构上了解人类蛋白质-蛋白质相互作用组,揭示疾病突变引起的全蛋白质组扰动
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-24 DOI: 10.1038/s41587-024-02428-4
Dapeng Xiong, Yunguang Qiu, Junfei Zhao, Yadi Zhou, Dongjin Lee, Shobhita Gupta, Mateo Torres, Weiqiang Lu, Siqi Liang, Jin Joo Kang, Charis Eng, Joseph Loscalzo, Feixiong Cheng, Haiyuan Yu

To assist the translation of genetic findings to disease pathobiology and therapeutics discovery, we present an ensemble deep learning framework, termed PIONEER (Protein–protein InteractiOn iNtErfacE pRediction), that predicts protein-binding partner-specific interfaces for all known protein interactions in humans and seven other common model organisms to generate comprehensive structurally informed protein interactomes. We demonstrate that PIONEER outperforms existing state-of-the-art methods and experimentally validate its predictions. We show that disease-associated mutations are enriched in PIONEER-predicted protein–protein interfaces and explore their impact on disease prognosis and drug responses. We identify 586 significant protein–protein interactions (PPIs) enriched with PIONEER-predicted interface somatic mutations (termed oncoPPIs) from analysis of approximately 11,000 whole exomes across 33 cancer types and show significant associations of oncoPPIs with patient survival and drug responses. PIONEER, implemented as both a web server platform and a software package, identifies functional consequences of disease-associated alleles and offers a deep learning tool for precision medicine at multiscale interactome network levels.

为了帮助将基因研究结果转化为疾病病理生物学和治疗发现,我们提出了一种称为 PIONEER(蛋白质-蛋白质相互作用预测)的集合深度学习框架,它可以预测人类和其他七种常见模式生物体中所有已知蛋白质相互作用的蛋白质结合伙伴特异性界面,从而生成全面的结构信息蛋白质相互作用组。我们证明了 PIONEER 优于现有的最先进方法,并通过实验验证了其预测结果。我们表明,疾病相关突变富集在 PIONEER 预测的蛋白质-蛋白质界面中,并探讨了它们对疾病预后和药物反应的影响。通过对 33 种癌症类型的约 11,000 个全外显子组的分析,我们发现了 586 个重要的蛋白质-蛋白质相互作用(PPIs),其中富含 PIONEER 预测的界面体细胞突变(称为 oncoPPIs),并显示 oncoPPIs 与患者生存和药物反应有显著关联。PIONEER 既是一个网络服务器平台,也是一个软件包,它能识别疾病相关等位基因的功能性后果,并为多尺度交互组网络水平的精准医疗提供深度学习工具。
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引用次数: 0
Pest control gets the CRISPR treatment 害虫控制得到 CRISPR 处理
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-23 DOI: 10.1038/s41587-024-02449-z
Precision genetic methods are enabling more efficient, environmentally friendly pest control methods for agricultural use as well as stopping the spread of disease.
精准基因方法能够为农业使用提供更高效、更环保的害虫控制方法,并阻止疾病的传播。
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引用次数: 0
Droplet Hi-C enables scalable, single-cell profiling of chromatin architecture in heterogeneous tissues 液滴Hi-C可对异质组织的染色质结构进行可扩展的单细胞分析
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-18 DOI: 10.1038/s41587-024-02447-1
Lei Chang, Yang Xie, Brett Taylor, Zhaoning Wang, Jiachen Sun, Ethan J. Armand, Shreya Mishra, Jie Xu, Melodi Tastemel, Audrey Lie, Zane A. Gibbs, Hannah S. Indralingam, Tuyet M. Tan, Rafael Bejar, Clark C. Chen, Frank B. Furnari, Ming Hu, Bing Ren

Current methods for analyzing chromatin architecture are not readily scalable to heterogeneous tissues. Here we introduce Droplet Hi-C, which uses a commercial microfluidic device for high-throughput, single-cell chromatin conformation profiling in droplets. Using Droplet Hi-C, we mapped the chromatin architecture of the mouse cortex and analyzed gene regulatory programs in major cortical cell types. In addition, we used this technique to detect copy number variations, structural variations and extrachromosomal DNA in human glioblastoma, colorectal and blood cancer cells, revealing clonal dynamics and other oncogenic events during treatment. We refined the technique to allow joint profiling of chromatin architecture and transcriptome in single cells, facilitating exploration of the links between chromatin architecture and gene expression in both normal tissues and tumors. Thus, Droplet Hi-C both addresses critical gaps in chromatin analysis of heterogeneous tissues and enhances understanding of gene regulation.

目前分析染色质结构的方法难以扩展到异质组织。在这里,我们介绍了Droplet Hi-C,它使用商用微流体设备在液滴中进行高通量、单细胞染色质构象分析。利用Droplet Hi-C,我们绘制了小鼠皮层的染色质结构图,并分析了主要皮层细胞类型的基因调控程序。此外,我们还利用这项技术检测了人类胶质母细胞瘤、结直肠癌和血癌细胞中的拷贝数变异、结构变异和染色体外DNA,揭示了治疗过程中的克隆动态和其他致癌事件。我们对该技术进行了改进,允许对单细胞中的染色质结构和转录组进行联合分析,从而有助于探索正常组织和肿瘤中染色质结构与基因表达之间的联系。因此,Droplet Hi-C既解决了异质组织染色质分析中的关键空白,又增强了对基因调控的理解。
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引用次数: 0
Global profiling of protein complex dynamics with an experimental library of protein interaction markers 利用蛋白质相互作用标记实验库全面剖析蛋白质复合物动态
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-16 DOI: 10.1038/s41587-024-02432-8
Christian Dörig, Cathy Marulli, Thomas Peskett, Norbert Volkmar, Lorenzo Pantolini, Gabriel Studer, Camilla Paleari, Fabian Frommelt, Torsten Schwede, Natalie de Souza, Yves Barral, Paola Picotti

Methods to systematically monitor protein complex dynamics are needed. We introduce serial ultrafiltration combined with limited proteolysis-coupled mass spectrometry (FLiP–MS), a structural proteomics workflow that generates a library of peptide markers specific to changes in PPIs by probing differences in protease susceptibility between complex-bound and monomeric forms of proteins. The library includes markers mapping to protein-binding interfaces and markers reporting on structural changes that accompany PPI changes. Integrating the marker library with LiP–MS data allows for global profiling of protein–protein interactions (PPIs) from unfractionated lysates. We apply FLiP–MS to Saccharomyces cerevisiae and probe changes in protein complex dynamics after DNA replication stress, identifying links between Spt-Ada-Gcn5 acetyltransferase activity and the assembly state of several complexes. FLiP–MS enables protein complex dynamics to be probed on any perturbation, proteome-wide, at high throughput, with peptide-level structural resolution and informing on occupancy of binding interfaces, thus providing both global and molecular views of a system under study.

我们需要系统监测蛋白质复合物动态的方法。我们介绍了串联超滤结合有限蛋白水解耦合质谱(FLiP-MS)的结构蛋白质组学工作流程,该流程通过探测复合结合型蛋白质与单体型蛋白质之间蛋白酶易感性的差异,生成特异于 PPI 变化的肽标记库。标记库包括映射到蛋白质结合界面的标记和报告伴随 PPI 变化的结构变化的标记。将标记库与 LiP-MS 数据相结合,就能从未分离的裂解液中全面分析蛋白质-蛋白质相互作用(PPI)。我们将 FLiP-MS 应用于酿酒酵母,探测了 DNA 复制应激后蛋白质复合物动态的变化,确定了 Spt-Ada-Gcn5 乙酰转移酶活性与多个复合物组装状态之间的联系。FLiP-MS 能够对任何扰动、整个蛋白质组的蛋白质复合物动态进行高通量探测,具有肽级结构分辨率,并能提供结合界面的占用情况,从而提供所研究系统的全局和分子视图。
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引用次数: 0
Lung and liver editing by lipid nanoparticle delivery of a stable CRISPR–Cas9 ribonucleoprotein 通过脂质纳米颗粒输送稳定的 CRISPR-Cas9 核糖核蛋白进行肺和肝脏编辑
IF 46.9 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-16 DOI: 10.1038/s41587-024-02437-3
Kai Chen, Hesong Han, Sheng Zhao, Bryant Xu, Boyan Yin, Atip Lawanprasert, Marena Trinidad, Benjamin W. Burgstone, Niren Murthy, Jennifer A. Doudna

Lipid nanoparticle (LNP) delivery of clustered regularly interspaced short palindromic repeat (CRISPR) ribonucleoproteins (RNPs) could enable high-efficiency, low-toxicity and scalable in vivo genome editing if efficacious RNP–LNP complexes can be reliably produced. Here we engineer a thermostable Cas9 from Geobacillus stearothermophilus (GeoCas9) to generate iGeoCas9 variants capable of >100× more genome editing of cells and organs compared with the native GeoCas9 enzyme. Furthermore, iGeoCas9 RNP–LNP complexes edit a variety of cell types and induce homology-directed repair in cells receiving codelivered single-stranded DNA templates. Using tissue-selective LNP formulations, we observe genome-editing levels of 16‒37% in the liver and lungs of reporter mice that receive single intravenous injections of iGeoCas9 RNP–LNPs. In addition, iGeoCas9 RNPs complexed to biodegradable LNPs edit the disease-causing SFTPC gene in lung tissue with 19% average efficiency, representing a major improvement over genome-editing levels observed previously using viral or nonviral delivery strategies. These results show that thermostable Cas9 RNP–LNP complexes can expand the therapeutic potential of genome editing.

如果能够可靠地生产出高效的 RNP-LNP 复合物,那么通过脂质纳米粒子(LNP)传递簇状规则间距短回文重复(CRISPR)核糖核蛋白(RNPs)就能实现高效、低毒和可扩展的体内基因组编辑。在这里,我们从嗜热地衣芽孢杆菌(Geobacillus stearothermophilus,GeoCas9)中改造出一种恒温 Cas9,生成的 iGeoCas9 变体能够对细胞和器官进行比原生 GeoCas9 多 100 倍的基因组编辑。此外,iGeoCas9 RNP-LNP 复合物还能编辑各种类型的细胞,并在接受编码单链 DNA 模板的细胞中诱导同源定向修复。利用组织选择性 LNP 配方,我们观察到单次静脉注射 iGeoCas9 RNP-LNPs 的报告小鼠肝脏和肺部的基因组编辑水平达到 16-37%。此外,与生物可降解 LNPs 复合的 iGeoCas9 RNPs 在肺组织中编辑致病的 SFTPC 基因的平均效率为 19%,与之前使用病毒或非病毒递送策略观察到的基因组编辑水平相比有了很大提高。这些结果表明,恒温 Cas9 RNP-LNP 复合物可以扩大基因组编辑的治疗潜力。
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引用次数: 0
People
IF 33.1 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-14 DOI: 10.1038/s41587-024-02421-x
Recent moves of note in and around the biotech and pharma industries.
近期生物技术和制药行业及其周边值得关注的动向。
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引用次数: 0
The global patent landscape of functional food innovation 功能性食品创新的全球专利格局
IF 33.1 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-14 DOI: 10.1038/s41587-024-02410-0
Maima Matin, Dalibor Hrg, Olena Litvinova, Małgorzata Łysek-Gładysinska, Agnieszka Wierzbicka, Jarosław Olav Horbańczuk, Artur Jóźwik, Atanas G. Atanasov
An analysis of patent documents reveals a trend of increasing interest in functional food innovations that may aid future decision-making in research, business and policymaking.
对专利文件的分析表明,人们对功能性食品创新的兴趣呈上升趋势,这可能有助于未来的研究、商业和决策。
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引用次数: 0
The European Innovation Council supports innovative portfolios in health biotech 欧洲创新理事会支持健康生物技术领域的创新组合
IF 33.1 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-14 DOI: 10.1038/s41587-024-02416-8
Iordanis Arzimanoglou
The European Innovation Council aims to catalyze the formation and growth of science-based businesses in Europe through highly targeted initiatives, actively managed innovative portfolios and a stepped funding pathway of grants and equity investment.
欧洲创新理事会旨在通过极具针对性的举措、积极管理的创新投资组合以及阶梯式的资助和股权投资途径,促进欧洲科学企业的形成和发展。
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引用次数: 0
Biotech news from around the world 全球生物技术新闻
IF 33.1 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Pub Date : 2024-10-14 DOI: 10.1038/s41587-024-02436-4
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引用次数: 0
期刊
Nature biotechnology
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