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南方科技大学发表最新Science论文
生物世界· 2026-01-09 00:27
2026 年 1 月 8 日,南方科技大学 董哲 副教授、 余沛源 助理教授作为共同通讯作者,在国际顶尖学术期刊 Science 上发表了题为: Leveraging triatropic rearrangements for stereoselective skeletal reshuffling 的研究论文。 这项研究提出了一种新型周环反应—— 三向重排 ( triatropic rearrangement) ,实现了对饱和碳环骨架的高选择性编辑,三向重排不仅兼具高立体控制与广泛 适用性,还能与经典反应模块化组合 , 为 复杂环 戊烷及天然产物骨架的精准编辑提供了全新路径。 编辑丨王多鱼 排版丨水成文 周环反应 ( Pericyclic reaction ) 能够以精妙的立体控制将简单前体转化为结构复杂的产物,使其成为合成化学的核心工具。 在这项最新研究中,研究团队报道了一类称为 三向重排 ( triatropic rearrangement) 的新型周环反应,该反应在单一过渡态中同时断裂三个 σ 键并形成两个 σ 键与一个 π 键。在此机理框架下,环氧化物中的碳-氧键可通过有机硼试剂介导,立体选择性地转 ...
上海交通大学×复旦大学合作发表最新Nature论文
生物世界· 2026-01-08 10:00
Core Viewpoint - The article discusses a groundbreaking research on high-voltage, anode-free sodium-sulfur batteries, which could provide a sustainable energy storage solution, overcoming limitations of traditional lithium-based systems [3][5]. Group 1: Research Breakthrough - The research team transformed the low-valence reaction path (S0/S2-) of traditional sodium-sulfur batteries into a high-valence reaction path (S0/S4+), creating a new battery system that operates at a significantly higher discharge voltage of 3.6 V [3][5]. - This new battery design eliminates the need for metallic sodium during production, enhancing safety and cost-effectiveness [5]. Group 2: Performance Metrics - The new sodium-sulfur battery achieves an energy density of up to 1198 Wh/kg and a power density of 23773 W/kg, based on total electrode mass calculations [5]. - The introduction of an 8 wt% bismuth-coordinated covalent organic framework catalyst in the sulfur cathode significantly improves the discharge capacity to 1206 mAh/g (sulfur + catalyst), leading to an energy density of 2021 Wh/kg [5]. Group 3: Cost and Application Potential - The estimated cost of the anode-free sodium-sulfur battery is $5.03 per kWh, indicating excellent scalability and potential for widespread application [7]. - This technology presents significant opportunities in energy storage for power grids and wearable electronic devices, addressing key performance limitations of traditional alkali metal-sulfur battery systems [7].
博士生为唯一一作,浙江大学×宁波大学合作发表最新Nature论文
生物世界· 2026-01-08 10:00
2026 年 1 月 7 日,浙江大学能源工程学院 范利武 研究员、宁波大学 叶羽敏 教授及普林斯顿大学 胡楠 博士作为共同通讯作者 ( 浙江大学博士生 李梓瑞 为论文第一作者 ) ,在国际顶尖学术期刊 Nature 上发 表了题为: Pulse heating and slip enhance charging of phase-change thermal batteries 的研究论 文。 该研究提出全新的 " 滑移强化紧密接触熔化 " (slip-enhanced close-contact melting, sCCM) 机 制,实现了在 不牺牲能量密度的情况下提高 相变热池 的 充热速率。 编辑丨王多鱼 排版丨水成文 用于可再生能源存储和废热回收的 相变热池 ( Phase-change thermal battery ) ,利用 石蜡、 水合 盐、 糖醇等材料 在固态和液态两种状态转换时吸收或释放的 "相变潜热"来存储热量,这需要 高能量密度 和 快速充放热 ,然而,这两者相互排斥,因为熔化焓高的相变 材料 ( phase-change material, PCM) 通常是不良热导体,这限制了"相 ...
2026新年伊始,华人学者发表14篇Nature论文
生物世界· 2026-01-08 08:00
撰文丨王聪 编辑丨王多鱼 排版丨水成文 2026 年伊始,国际顶尖学术期刊 Nature 上线了 35 篇研究论文,其中 14 篇来自华人学者 (包括通讯作者和第一作者) 。 1 月 7 日,香港 香港中文大学 吕海荣 、 香港科技大学 全杨健 作为共同通讯作者,在 Nature 期刊发表了题为: Electrochemical defluorinative Matteson- type homologation ( 电化学脱氟马特森型同系化反应 ) 的研究论文 【1】 。 1 月 7 日, 伦斯勒理工学院 Meng Xiangyi 作为第一作者,在 Nature 期刊发表了题为: Surface optimization governs the local design of physical networks ( 表面优化控制着物理网络的局部设计) 的研究论文 【2】 。 1 月 7 日, 马萨诸塞大学医学院 翁志萍 作为通讯作者,在 Nature 期刊发表了题为: An expanded registry of candidate cis-regulatory elements ( 候选顺 式调控元件的 ...
Nature:华人学者发现,胶质细胞向神经元转移线粒体以预防周围神经病变,可用于缓解慢性神经痛
生物世界· 2026-01-08 04:33
撰文丨王聪 编辑丨王多鱼 排版丨水成文 对于成百上千万患有 神经痛 的人来说,哪怕是最轻微的触碰也会让他们难以忍受。 长期以来,科学家们一直怀疑,受损的神经元之所以功能衰退,是因为这些细胞中的能量工厂—— 线粒体 ,无法正常运作。 而现在,一项发表于 Nature 的最新研究指出了一个可行的方向—— 向陷入困境的神经元提供健康的线粒体 。 该研究以: Mitochondrial transfer from glia to neurons protects against peripheral neuropathy 为题,于 2026 年 1 月 7 日在线发表于 国际顶尖学术期刊 Nature 。 该研究利用人体组织和小鼠模型发现, 补充线粒体 能显著减轻糖尿病神经病变和化疗引起的神经损伤所导致的 疼痛 ,这种疼痛缓解可持续长达 48 小时。 论文通讯作者、杜克大学 纪如荣 教授表示, 通过给受损神经提供新的线粒体,或者帮助它们自身生成更多线粒体,能够减轻炎症并促进治愈,这种方法有望以 一种全新的方式缓解疼痛。 而在未患病的小鼠中阻断这种线粒体转移,则会导致神经退化和神经性疼痛。单细胞核 RNA 测序和原位杂 ...
Nature Cancer:肿瘤内细菌抑制具有免疫抑制作用,促进癌症免疫疗法耐药
生物世界· 2026-01-08 04:33
Core Viewpoint - Immune checkpoint blockade (ICB) therapy has shown promise in improving clinical outcomes for some head and neck squamous cell carcinoma (HNSCC) patients, but the mechanisms regulating treatment response remain poorly understood [3][6]. Group 1: Role of Gut Microbiome - Increasing research emphasizes the significant role of the gut microbiome in determining the effectiveness of immunotherapy, with specific gut bacteria shown to enhance anti-tumor immunity and T cell proliferation in cancer patients [3]. - Intratumoral bacteria have been identified as immunosuppressive and promote resistance to ICB therapy in HNSCC [4]. Group 2: Research Findings - A study analyzing samples from the CIAO clinical trial found that only the total abundance of intratumoral bacteria could predict patient response to ICB therapy, a conclusion validated across multiple independent cohorts [6]. - High abundance of intratumoral bacteria correlates with an immunosuppressive tumor microenvironment characterized by neutrophil accumulation and reduced T cells and other adaptive immune cells [6]. - Experimental manipulation of intratumoral bacterial abundance in a mouse model of HNSCC replicated the immunological associations observed in clinical trial participants [6]. Group 3: Implications for Immunotherapy - The findings indicate that high levels of intratumoral bacteria are a key inhibitory factor for anti-tumor immunity and contribute to resistance against immunotherapy [7].
深圳湾实验室×北京大学合作最新Nature:陈鹏/席建忠合作开发全新癌症疫苗——瘤内疫苗嵌合体
生物世界· 2026-01-08 04:33
Core Viewpoint - The article discusses a novel approach to cancer immunotherapy through the development of an intratumoral vaccination chimera (iVAC) that combines immune checkpoint degradation with high-quality antigen presentation, aiming to enhance anti-tumor immunity and overcome immune evasion by tumors [4][5][7]. Group 1: Mechanisms of Tumor Immune Evasion - Tumors evade immune surveillance through various mechanisms, including the overexpression of inhibitory checkpoint proteins and impaired antigen presentation [3]. - The lack or dysfunction of tumor-specific cytotoxic T lymphocytes (CTLs) limits the response rates to immune checkpoint blockade (ICB) therapies [3]. Group 2: Development of iVAC - The research team developed the iVAC, which covalently links PD-L1 degradation agents with immunogenic antigens, enabling the reprogramming of tumor cells into antigen-presenting cell-like states [5][7]. - iVAC induces strong tumor-killing effects by reactivating resident antigen-specific CD8+ T cells and reshaping the tumor microenvironment to promote durable tumor-specific immunity [5][7]. Group 3: Experimental Validation - The iVAC technology was validated using antigens derived from cytomegalovirus (CMV) to activate CMV-specific T cells targeting breast cancer in vitro, in humanized mouse models, and in patient-derived tumor models [7]. - This innovative strategy transforms tumor cells into allies of the immune system, paving the way for more effective cancer immunotherapies [7].
Nature Biotechnology:程柯团队开发吸入式外泌体系统BEAT,治疗免疫检查点抑制剂耐药癌症
生物世界· 2026-01-08 00:18
撰文丨王聪 编辑丨王多鱼 排版丨水成文 免疫检查点抑制剂 (ICI) 用于癌症免疫治疗时,常常会受到免疫抑制性的 肿瘤微环境 (TME) 的限制。同时靶向肿瘤微环境和免疫检查点,是一种很有前景 的方法,能够解决这一局限性。 2026 年 1 月 6 日,哥伦比亚大学 程柯 教授团队在 Nature 子刊 Nature Biotechnology 上发表了题为: Engineering bispecific exosome activators of T cells to target immune checkpoint inhibitor-resistant metastatic melanoma 的研究论文。 该研究开发了一种 吸入式外泌体系统—— T 细胞 双特异性外泌体激活剂 ( bispecific exosome activator of T cell, BEAT ) ,其在外泌体表面实现 PD-1 和 FZD8 这 两种蛋白质的均匀 1:1 共展示 , BEAT可同步招募并激活 CD8⁺ T 细胞重构肿瘤微环境 (TME) ,在免疫检查点抑制剂 (ICI) 耐药的黑色素瘤小 鼠模型中,引发了显著的 ...
Cell子刊:抗抑郁药竟是抗癌利器?我国学者发现,帕罗西汀可诱导癌细胞焦亡,增强免疫疗法
生物世界· 2026-01-07 10:18
Core Viewpoint - The research indicates that Paroxetine, a commonly used antidepressant, shows significant efficacy against malignant melanoma, particularly in cases with BRAF V600E mutations that are resistant to targeted therapies [3][5]. Group 1: Research Findings - A study published in Cell Reports Medicine reveals that Paroxetine induces pyroptosis in melanoma cells, a unique mechanism of cell death distinct from traditional apoptosis [3][7]. - The mechanism involves blocking serotonin reuptake, leading to reduced intracellular serotonin levels, which affects DNA repair gene expression and ultimately results in DNA damage accumulation and endoplasmic reticulum stress [7][9]. - Paroxetine is effective against BRAFi/MEKi resistant melanoma due to lower expression of TPH1, making these cells more sensitive to treatment [11]. Group 2: Clinical Implications - The findings suggest multiple clinical benefits: Paroxetine is an already approved drug with known safety, allowing for quicker clinical application [14]. - It serves dual purposes as both an antidepressant and an anti-cancer agent, making it particularly suitable for advanced cancer patients [14]. - The drug offers new options for patients with resistance to targeted therapies and enhances the effectiveness of immune therapies by transforming "cold tumors" into "hot tumors" [11][14].
吃太咸,血压高!顾东风院士团队等发现调控盐敏感高血压的新靶点
生物世界· 2026-01-07 10:18
撰文丨王聪 编辑丨王多鱼 排版丨水成文 高盐饮食 ( High-salt diet, HSD) 在 2019 年已被列为导致全球疾病负担的首要饮食因素,尤其会增加 心血管疾病 (CVD) 的发病率和死亡率。高盐饮食 对心血管系统的有害影响主要源于高盐引起的 血压 (BP) 升高。然而,不同个体对盐的反应存在差异,有些人的血压会因盐摄入量的变化而大幅波动,这种情 况被称为 血压盐敏感性 (SSBP) ,而且心血管疾病 (CVD) 风险在不同 SSBP 程度的个体之间也有所不同。 高盐诱导血压升高以及盐敏感性高血压的发展机制涉及交感神经系统和肾素-血管紧张素-醛固酮系统的功能障碍。 近年来的研究显示, 肠道微生物群及其代谢物 在调控 盐敏感性高血压 方面的发挥着重要作用。然而,我们对于影响人类血压盐敏感性的特定肠道微生物群-代谢物通路仍知之甚少,对于精准预防和治疗 盐敏 感性高血压 至关重要的关键代谢生物标志物,也尚未确定。 近日,中国医学科学院北京协和医学院 鲁向锋 教授、 顾东风 院士等,在 Nature 子刊 Nature Communications 上发表了题为: Gut microbiota-deri ...