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Engineering a macromolecular JAK inhibitor for treating acute inflammation and endotoxaemia. 设计用于治疗急性炎症和内毒素血症的大分子JAK抑制剂。
IF 28.1 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01521-6
Min Zhou,Yan Wang,Bin Yang,Yang Zhang,Ling Zhong,Kaiyao Hu,Wendan Pu,Gaoxing Luo,Jianxiang Zhang
Uncontrolled and sustained inflammation is inextricably associated with the pathogenesis of numerous diseases. However, there is still demand for effective and safe anti-inflammatory therapies. Here we report a potent anti-inflammatory macromolecular therapy named HPL, created by conjugating polyethylene glycol and luminol onto a multivalent and hydrolysable cyclic structure. Leveraging its amphiphilic nature, HPL can spontaneously self-assemble into micelles capable of targeting inflamed tissues and localizing in inflammatory cells. In mice with acute lung, kidney and liver injuries, as well as endotoxaemia, HPL shows anti-inflammatory effects that rivals or surpasses those of two commonly used anti-inflammatory drugs. HPL micelles can act as bioactive and inflammation-responsive carriers for site-specific delivery to release anti-inflammatory drugs. Mechanistically, HPL exerts its anti-inflammatory activity mainly by inhibiting the IL-6/JAK2/STAT3 signalling pathway. HPL shows favourable safety profiles in mice at doses at least 5-fold higher than those used in therapeutic studies. These findings suggest that HPL holds great promise as a highly potent, cost-effective and safe JAK2 inhibitor for treating various diseases associated with inflammation.
不受控制和持续的炎症与许多疾病的发病机制密不可分。然而,仍然需要有效和安全的抗炎疗法。在这里,我们报道了一种名为HPL的有效抗炎大分子疗法,它是通过将聚乙二醇和鲁米诺偶联到多价可水解的环结构上而产生的。利用其两亲性,HPL可以自发地自组装成能够靶向炎症组织并定位于炎症细胞的胶束。在患有急性肺、肾和肝损伤以及内毒素血症的小鼠中,HPL显示出与两种常用抗炎药相当或超过的抗炎作用。HPL胶束可以作为生物活性和炎症反应载体,用于部位特异性递送释放抗炎药物。机制上,HPL主要通过抑制IL-6/JAK2/STAT3信号通路发挥其抗炎活性。HPL在小鼠中显示出良好的安全性,剂量至少比治疗研究中使用的剂量高5倍。这些发现表明,HPL作为一种高效、经济、安全的JAK2抑制剂,有望治疗各种与炎症相关的疾病。
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引用次数: 0
Autonomous ultrasound with UltraBot 使用UltraBot的自主超声波。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01546-x
Rita Strack
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引用次数: 0
Managing haemodynamic instability in spinal cord injury 脊髓损伤血流动力学不稳定的处理。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01547-w
Sadra Bakhshandeh
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引用次数: 0
Next-generation anti-Aβ antibodies show promise in a mouse model of Alzheimer disease 下一代抗a β抗体在阿尔茨海默病小鼠模型中显示出希望。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01540-3
Diana Romero
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引用次数: 0
Predicting vaccine effectiveness 预测疫苗的有效性。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01539-w
Michael Attwaters
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引用次数: 0
The ever-changing communication of scientific discovery 不断变化的科学发现交流。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01551-0
We take a look at how scientific articles have evolved over time and envision possible changes to how research findings are communicated in the age of digital media and artificial intelligence.
我们来看看科学文章是如何随着时间的推移而演变的,并设想在数字媒体和人工智能时代,研究成果的传播方式可能发生的变化。
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引用次数: 0
Deep-learning-based HER2 status assessment from multimodal breast cancer data predicts neoadjuvant therapy response. 基于深度学习的多模态乳腺癌HER2状态评估预测新辅助治疗反应。
IF 28.1 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-17 DOI: 10.1038/s41551-025-01495-5
Jiadong Zhang,Yonghao Li,Zheren Li,Zhiming Cui,Pinxiong Li,Jun Li,Zhen Li,Yu Xie,Kannie W Y Chan,Qinrong Zhang,Zhenhui Li,Dinggang Shen
Accurate assessment of human epidermal growth factor receptor 2 (HER2) status is crucial for effective breast cancer treatment planning and improved patient outcomes. Traditional needle biopsies, limited in tissue sampling, often lead to inaccurate assessments due to intratumoural heterogeneity. Here, to address this, we introduce the deep-learning-based HER2 multimodal alignment and prediction (MAP) model, which leverages pretreatment multimodal breast cancer images for a more comprehensive reflection of tumour characteristics and provides more accurate HER2 status prediction. We develop patient response MAP models to demonstrate the HER2 prediction performance of our model compared with needle biopsies from patients receiving neoadjuvant therapy. A large-scale multimodal breast cancer dataset from 4 centres, consisting of 14,472 images from 6,991 cases, is adopted in this study, and the results consistently demonstrate the superiority of our HER2 MAP model in predicting patient response. These findings highlight the substantial advantages of our HER2 predictions. Our study provides physicians with a crucial tool for informed clinical decisions and treatment plans, aiming to improve outcomes in patients with breast cancer.
准确评估人表皮生长因子受体2 (HER2)状态对于有效的乳腺癌治疗计划和改善患者预后至关重要。传统的针活检在组织取样方面受到限制,由于肿瘤内的异质性,常常导致不准确的评估。为了解决这个问题,我们引入了基于深度学习的HER2多模态对齐和预测(MAP)模型,该模型利用预处理的多模态乳腺癌图像更全面地反映肿瘤特征,并提供更准确的HER2状态预测。我们开发了患者反应MAP模型,以证明我们的模型与接受新辅助治疗的患者的针活检相比的HER2预测性能。本研究采用了来自4个中心的大规模多模态乳腺癌数据集,包括来自6,991例病例的14,472张图像,结果一致证明了我们的HER2 MAP模型在预测患者反应方面的优势。这些发现突出了我们的HER2预测的实质性优势。我们的研究为医生提供了一个重要的工具,以知情的临床决策和治疗计划,旨在改善乳腺癌患者的预后。
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引用次数: 0
Targeting and tracking mRNA lipid nanoparticles at the particle, transcript and protein level 在颗粒、转录物和蛋白质水平上靶向和跟踪mRNA脂质纳米颗粒。
IF 26.8 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-16 DOI: 10.1038/s41551-025-01511-8
Diana D. Kang, Adam Marks, Judit Morla-Folch, Yizhou Dong, Brian D. Brown, Abraham J. P. Teunissen
Lipid nanoparticles (LNPs) are a versatile platform with numerous experimental, diagnostic and therapeutic applications. However, the high propensity of LNPs to accumulate in hepatocytes and antigen-presenting cells has largely limited their clinical use to vaccines and the treatment of liver diseases. In this Review, we describe established and emerging techniques for monitoring the in vivo behaviour of RNA-loaded LNPs (RNA-LNPs) and strategies for improved tissue and cell targeting that expand the applications of this technology. We discuss innovations in LNP chemistry and bioengineering, and exploiting synthetic biology to tailor the cellular expression of the mRNA cargo, including the use of microRNA target sites. We also review how modifications to the encoded protein can be used to control stability and subcellular localization of the payload. Lastly, we discuss how these techniques and strategies can accelerate the clinical translation of RNA-LNP drugs and improve therapeutic outcomes. This Review explores strategies for targeting and tracking RNA-LNP drugs, monitoring their in vivo behaviour, enhancing tissue-specific delivery, and using synthetic biology to control mRNA expression and protein localization.
脂质纳米颗粒(LNPs)是一个多功能平台,具有众多的实验,诊断和治疗应用。然而,LNPs在肝细胞和抗原提呈细胞中积聚的高倾向在很大程度上限制了它们在疫苗和肝脏疾病治疗中的临床应用。在这篇综述中,我们描述了用于监测rna负载LNPs (RNA-LNPs)的体内行为的成熟和新兴技术,以及改进组织和细胞靶向的策略,以扩大该技术的应用。我们讨论了LNP化学和生物工程方面的创新,以及利用合成生物学来定制mRNA货物的细胞表达,包括使用microRNA靶点。我们还回顾了如何修改编码蛋白来控制负载的稳定性和亚细胞定位。最后,我们讨论了这些技术和策略如何加速RNA-LNP药物的临床翻译和改善治疗效果。
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引用次数: 0
Inhibition of LARP4-mediated quiescence exit of naive CD4+ T cells ameliorates autoimmune and allergic diseases. 抑制larp4介导的初始CD4+ T细胞的静止退出可改善自身免疫性和过敏性疾病。
IF 28.1 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-16 DOI: 10.1038/s41551-025-01514-5
Jian Zhou,Di Yang,Chao Han,Hui Dong,Shufeng Wang,Xiang Li,Jun Hu,Cui Wang,Jie Luo,Zhiyuan Wei,Taiping Liu,Shuai Xu,Chen Xu,Yiwei Zhang,Xian Wang,Yuanyu Deng,Baiqing Li,Ruihan Mao,Mingyang Zhang,Yi Sun,Xinyuan Zhou,Lilin Ye,Bing Ni,Jun Zhu,Juan Li,Jingbo Zhang,Tingting Zhao,Xiangmei Chen,Rong Lin,Yi Zhang,Yuzhang Wu,Yi Tian
Naive T cells are maintained under a quiescent state, and their exit from quiescence is a hallmark of antigen stimulation. Here we identify the RNA binding protein La-related protein 4 (LARP4) as an important checkpoint regulator of quiescence exit in naive CD4+ T cells. Conditional knockout of LARP4 in naive CD4+ T cells leads to an enhanced quiescence state and/or dampened quiescence exit due to altered stability of several messenger RNAs important for T-cell activation. The differentiation of naive CD4+ T cells into helper T-cell subsets is also impaired after conditional knockout, leading to ameliorated autoimmune and allergic responses. Lastly, we design a peptide inhibitor of LARP4 (LIPEP), and treatment with LIPEP could perfectly mimic LARP4 deficiency and alleviate the severity of autoimmune and allergic diseases in the corresponding mouse models. Our study reveals a link between RNA stability and CD4+ T-cell homeostasis/adaptive activation, highlighting the potential of LARP4 as a preventative and therapeutic target for autoimmune and allergic diseases although at quite high doses.
幼稚T细胞维持在静止状态,它们从静止状态中退出是抗原刺激的标志。本研究发现,RNA结合蛋白la相关蛋白4 (LARP4)是初始CD4+ T细胞休眠退出的重要检查点调节因子。在初始CD4+ T细胞中,条件敲除LARP4会导致静止状态增强和/或由于对T细胞活化重要的几种信使rna的稳定性改变而抑制静止退出。在条件敲除后,初始CD4+ T细胞向辅助性T细胞亚群的分化也受到损害,从而导致自身免疫和过敏反应的改善。最后,我们设计了一种LARP4肽抑制剂(LIPEP),在相应的小鼠模型中,用LIPEP治疗可以很好地模拟LARP4缺乏,减轻自身免疫性和过敏性疾病的严重程度。我们的研究揭示了RNA稳定性与CD4+ t细胞稳态/适应性激活之间的联系,强调了LARP4作为自身免疫性和过敏性疾病的预防和治疗靶点的潜力,尽管剂量相当高。
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引用次数: 0
Staple oligomers induce a stable RNA G-quadruplex structure for protein translation inhibition in therapeutics. 短链低聚物诱导稳定的RNA g -四重体结构用于蛋白质翻译抑制治疗。
IF 28.1 1区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2025-10-15 DOI: 10.1038/s41551-025-01515-4
Yousuke Katsuda,Takuto Kamura,Tomoki Kida,Rinka Ohno,Shuhei Shiroto,Yua Hasegawa,Kaito Utsumi,Yuki Sakamoto,Shinichiro Nakamura,Taishi Nakamura,Kenichi Tsujita,Yusuke Kitamura,Yukiko Kamiya,Hiroyuki Asanuma,Toshihiro Ihara,Masaki Hagihara,Shin-Ichi Sato
Gene-silencing mechanisms using RNA interference (RNAi) and antisense oligomers have drawn attention to nucleic acid medicines. However, several challenges remain such as low in vivo stability and inadequate target selectivity. Here we report a versatile and highly selective method for suppressing gene expression with a short oligonucleotide. The oligonucleotide, a Staple oligomer, hybridizes specifically to a target mRNA and artificially induces a higher-order structure, an RNA G-quadruplex (rG4), on the mRNA. This results in the rG4 effectively suppressing the target protein's translation. The method is validated by successfully regulating translation of TPM3, MYD88 and TRPC6 mRNAs in a cell-free system and in living mammalian cells. Unlike RNAi and antisense technologies, the present technology does not require cooperation with bioprocesses, permitting the quick and easy development of fully non-natural nucleic acid-based Staple oligomers without compromising their effectiveness. In vivo application of the technology to TRPC6 mRNA helps prevent cardiac hypertrophy in thoracic aortic constriction-treated mice without detectable off-target effects. This technology provides new insights into gene therapy after RNAi and antisense technologies.
利用RNA干扰(RNAi)和反义寡聚物的基因沉默机制引起了核酸药物的关注。然而,仍存在一些挑战,如体内稳定性低和靶标选择性不足。在这里,我们报告了一种多功能和高选择性的方法来抑制基因表达短寡核苷酸。寡核苷酸是一种短链寡聚物,它与目标mRNA特异性杂交,并在mRNA上人工诱导高阶结构,即RNA g -四重体(rG4)。这导致rG4有效抑制靶蛋白的翻译。通过在无细胞系统和活的哺乳动物细胞中成功调节TPM3、MYD88和TRPC6 mrna的翻译,验证了该方法。与RNAi和反义技术不同,目前的技术不需要与生物过程合作,允许快速和容易地开发完全非天然的核酸基短链低聚物,而不会影响其有效性。在体内将该技术应用于TRPC6 mRNA有助于防止胸主动脉收缩治疗小鼠的心脏肥厚,而无明显的脱靶效应。该技术为继RNAi和反义技术之后的基因治疗提供了新的见解。
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Nature Biomedical Engineering
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