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Cell重磅:鲁友明团队揭示癌症对抗阿尔茨海默病的机制,带来全新治疗思路
生物世界· 2026-01-23 00:21
Core Viewpoint - The research reveals a surprising link between peripheral cancers and a reduced risk of Alzheimer's disease, suggesting that certain cancer patients may possess a protective mechanism against Alzheimer's through the protein cystatin-c [2][6]. Group 1: Research Findings - The study published in Cell demonstrates that tumor cells secrete cystatin-c, which acts as a "molecular glue" to activate TREM2 receptors on microglial cells, facilitating the clearance of amyloid plaques associated with Alzheimer's disease [3][5]. - In experiments with Alzheimer's model mice implanted with peripheral cancer cells, a significant reduction in amyloid plaques and improved cognitive function were observed [6][12]. Group 2: Mechanism of Action - Cystatin-c binds to toxic amyloid oligomers in the brain, activates microglial cells via TREM2, and enhances the clearance of existing amyloid plaques [9][15]. - The protective effect of cystatin-c was confirmed through gene knockout experiments, where the absence of cystatin-c eliminated the protective benefits, which were restored upon reintroduction of normal cystatin-c [13][14]. Group 3: Therapeutic Implications - This research opens new avenues for Alzheimer's treatment by focusing on the removal of existing amyloid plaques rather than solely preventing their formation [17][21]. - Direct injection of recombinant cystatin-c into Alzheimer's model mice successfully reduced amyloid burden and improved learning and memory capabilities [18][20].
华人学者一天发表了8篇Nature论文
生物世界· 2026-01-22 08:30
Core Insights - On January 21, 2026, the journal Nature published 29 research papers, with 8 authored by Chinese scholars, highlighting the significant contribution of Chinese researchers to global scientific advancements [3][4][5][7][8][10][11][13]. Group 1: Research Contributions - A paper titled "Construction of complex and diverse DNA sequences using DNA three-way junctions" was published by Kaihang Wang from Caltech as a corresponding author [3]. - The research "Extreme barocaloric effect at dissolution" was co-authored by researchers Li Bing, Li Kuo, Qian Suxin, and Tong Peng, showcasing advancements in material science [4]. - The study "Pyramidal neurons proportionately alter cortical interneuron subtypes" was co-authored by Jingjing Wu and Min Dai from Harvard Medical School, contributing to neuroscience [5]. - A significant paper titled "Four camera-type eyes in the earliest vertebrates from the Cambrian Period" was authored by Peiyun Cong from Yunnan University, shedding light on evolutionary biology [7]. - The research "The potential for bridgmanite megacrysts to drive magma ocean segregation" was led by Haiyang Niu from Northwestern Polytechnical University, focusing on geology [8]. - The paper "Critical role for a high-plasticity cell state in lung cancer" was co-authored by Yan Yan from Huazhong Agricultural University, addressing cancer research [10]. - Jingwen W. Ding from UCSF published "Dissecting gene regulatory networks governing human cortical cell fate," contributing to genetic research [11]. - The study "Fibre integrated circuits by a multilayered spiral architecture" was co-authored by Academician Huisheng Peng and researcher Peining Chen from Fudan University, advancing the field of integrated circuits [13].
复旦大学最新Nature论文:彭慧胜院士团队开发出首个“纤维芯片”,助力脑机接口/智能织物/VR设备发展
生物世界· 2026-01-22 08:30
撰文丨王聪 编辑丨王多鱼 排版丨水成文 纤维电子设备 正在将传统纤维和服装转变为 新一代可穿戴设备 ,这些设备能够主动与人体和环境互动, 从而塑造未来生活。 如今,纤维电子设备已实现了几乎所有期望的功能,例如供电、传感和显示功能。然而,可行的 信号处理 纤维 ——作为构建类似任何电子产品的智能交互纤维系统的核心——仍然是缺失的关键部分。 2026 年 1 月 21 日,复旦大学 彭慧胜 院士、 陈培宁 研究员作为通讯作者 ( 王臻 、 陈珂 、 施翔 为论 文共同第一作者) ,在 Nature 期刊发表了题为: Fibre integrated circuits by a multilayered spiral architecture 的研究论文。 该研究突破传统芯片硅基研究范式,率先提出并制备了 "纤维芯片" ,在弹性的高分子纤维内实现大规模集 成电路,成功将 供电 、 传感 、 显示 、 信号处理 等多功能集成于一根纤维之内,为纤维电子系统开辟全 新的集成路径,有望为 脑机接口 、 电子织物 、 虚拟现实可穿戴设备 等新兴产业提供强有力的技术支 撑。 在这项最新研究中,研究团队通过创建具有前所未有的微器 ...
Cell:山东大学孙金鹏/于晓/杨帆团队等揭示 II 类嗅觉受体介导的脂肪酸气味识别机制
生物世界· 2026-01-22 04:28
撰文丨王聪 编辑丨王多鱼 排版丨水成文 嗅觉 是由数千种 气味受体 ( Olfactory Receptor, OR) 介导的基本感觉之一。然而,疏水挥发性气味分子如何被 II 类嗅觉受体识别,目前仍不清楚。 2026 年 1 月 21 日,山东大学 孙金鹏 教授团队 、 于晓 / 杨帆 教授 团队及 上海交通大学医学院 李乾 研究员 团队 、山东第一医科大学 夏明 教授团队 合作 ( 韩翔 、 张鸣晖 、 荣乃康 、 朱孔凯 、 裴远 、 葛晓燕 为论文共同第一作者 ) ,在国际顶尖学术期刊 C ell 上发表了 题为: Mechanistic Insights into Fatty Acid Odor Detection Mediated by Class II Olfactory Receptors 的 研究论文 。 该研究筛选到了 II 类嗅觉受体 OLFR110 ( OR5V1 ) 可识别天然中药 佩兰 中的脂质分子,进一步阐明了其识别疏水的 脂肪酸类气味分子 的分子机制,并拓广 到 II 类受体 5 家族的多个受体识别气味的机制,为理解嗅觉受体进化及鼻外表达的 II 类气味受体 的生理功能提供支撑 ...
云南大学最新Nature论文:早期脊椎动物有四只眼睛!
生物世界· 2026-01-22 04:28
脊椎动物 的视觉功能主要由一对侧生成像的相机型眼睛 ( camera-type eyes, 指像相机一样结构的眼睛,例如人类或许多脊椎动物的眼睛,这种眼睛有类似相 机的组件,能够聚焦光线并形成清晰图像 ) 承担,而在非哺乳类脊椎动物中,背侧松果体复合体 (松果体与副松果体器官) 作为光感受器和/或内分泌器官起补 充作用。 松果体复合体与侧眼具有共同的遗传和胚胎学基础,两者均源于间脑发育过程中的外翻结构。尽管在冠群脊椎动物中被普遍称为"第三只眼",但松果体复合体的 本质及其在早期脊椎动物中假定的视觉能力仍属未知。 2026 年 1 月 21 日,云南大学 丛培允 团队 ( 雷向通 、 张思航 为论文共同第一作者) 在国际顶尖学术期刊 Nature 上发表了题为: Four camera-type eyes in the earliest vertebrates from the Cambrian Period 的研究论文。 该研究表明,寒武纪时期的已知最早的脊椎动物 (约 5.18 亿年前) 具有 四只 像机型眼睛 ( camera-type eyes ) 。 在这项最新研究中,研究团队描述了两种昆明鱼 ( m ...
山东大学最新Cell论文:孙金鹏/于晓团队等发现肥胖治疗新靶点,并开发候选药物
生物世界· 2026-01-22 04:28
2026 年 1 月 21 日 ,山东大学 孙金鹏 教授团队 、 于晓 教授团队联合北京大学 杨吉春 教授 、 东南大学 柴人杰 教授、上海交通大学 医学院附属仁济医院 郝 勇 主任 ( 葛晓燕 、 程杰 、 章莉君 、 郭璐璐 、 向瑞 、 陆燕 、 宁尚磊 、 王凯宇 为论文共同第一作者 ) , 在国际顶尖学术期刊 Cell 上 发表了题为: Identification of Or5v1/Olfr110 as an oxylipin receptor and anti-obesity target 的研究论文 。 该研究通过创新开发的" ARIG "技术, 发现并 鉴定了嗅觉受体 Or5v1/Olfr110 (人类同源基因 OR5V1) 为氧化脂类 12 (S)-HEPE 的高亲和力受体,12 (S)- HEPE 通过 Olfr110-Gs–PKA– pATF2–Cpt1α 信号通路促进肝脏脂肪酸氧化,进而 改善血糖稳态并减轻肥胖 。 靶向该受体开发的 小分子激动剂 HOR1-C59 ,可产生依赖于 Olfr110 的代谢改善效应,该研究为 肥胖 、 糖尿病 及 脂肪肝 等疾病的治疗提供了全新靶点和候选 ...
上海科技大学最新Cell论文:刘志杰团队揭示嗅觉受体共价键“牵手”醛类气味分子的感知新范式
生物世界· 2026-01-22 01:50
编辑丨王多鱼 排版丨水成文 嗅觉 是生命体感知外界化学环境最古老且精细的感官功能之一,在觅食、避险、社会交流和行为调控中发挥基础性作用,其分子基础是 嗅觉受体 (Olfactory Receptors,ORs) 。人类基因组中约有400种功能性嗅觉受体,是数量最多的一类G蛋白偶联受体 (GPCR) ,通过"一个神经元表达一种受体"及组合编码机 制识别成千上万种结构各异的气味分子,赋予嗅觉系统极高的灵敏度与分辨力。近年研究发现,嗅觉受体并非仅限于嗅上皮,还广泛表达于免疫细胞、皮肤、心 血管及代谢相关组织,参与炎症反应、能量代谢等重要生理病理过程。这些发现推动嗅觉受体从传统的"感官分子"拓展为连接环境感知、机体稳态与疾病干预的 关键信号分子,展现出重要的药物开发潜力。 尽管嗅觉受体具有重要的生物学与医学意义,其三维结构解析长期受限于异源表达效率低、构象不稳定等问题,被认为是结构生物学领域的"硬骨头"。科学家们 采用"共识序列 (consensus sequence) "策略,成功解析了多个工程化嗅觉受体 (consOR) 的结构,揭示了嗅觉受体的整体折叠方式和共性结构特征。但共 识序列在一定程度上削弱了单个受体的 ...
STTT:冉丕鑫/龙尔平团队发现慢性阻塞性肺疾病治疗新靶点
生物世界· 2026-01-21 08:18
撰文丨王聪 编辑丨王多鱼 排版丨水成文 慢性阻塞性肺疾病 (COPD) 是全球导致死亡和残疾的主要原因之一,其特征是持续的气流受限,由包括 慢性支气管炎、肺气肿和小气道重塑在内的多种异质性病理过程所驱动。尽管 COPD 是全球第三大致死病 因,但目前仍缺乏能改变其病程的药物疗法。目前的治疗模式仅限于对症处理和通过使用支气管扩张剂及 吸入性皮质类固醇来减少急性加重,尚无任何干预措施能够改变该疾病的进行性发展轨迹。 COPD 通常在病情较重时 (GOLD 分期 3 期和 4 期) 才被确诊,且往往预后不良。然而,存在大量患有 轻度 COPD (GOLD 分期 1 期和 2 期) 患者;由于缺乏明显的呼吸系统症状,这部分人群的诊断往往被 延误,从而错失了最佳治疗时机。这种严峻的形势凸显了阐明 COPD 分子机制以及确定潜在预测和治疗靶 点的迫切需求。 研究团队发现,丝氨酸蛋白酶抑制因子家族 G 成员-1 (SERPING1) 是一个强效因果候选基因,其蛋白 质定量性状位点与 COPD 及肺功能指标 (包括FEV₁和FEV₁/FVC%) 均呈现一致性关联。 广州医科大学 附属第一医院/呼吸疾病全国重点实验室 冉丕鑫 ...
施一公/李党生主编的国产顶刊Vita,上线首批文章:儿童癌症的共同起源机制;血红素缺乏触发铜死亡
生物世界· 2026-01-21 08:18
Core Insights - The article discusses the establishment of a new international open-access journal named Vita, led by Westlake University, focusing on significant advancements in life sciences and biomedical research [2] - It highlights the unique characteristics of childhood cancers, emphasizing their developmental origins and the potential for a unified mechanism of onset [7][11] Group 1: Journal Overview - Vita is co-edited by Professor Li Dangsheng and Professor Shi Yigong, aiming to publish impactful research in various fields of life sciences [2] - The journal has already published two articles, including an "Expert Views" piece and a "Cutting Edge" commentary [3] Group 2: Childhood Cancer Mechanisms - The article presents a perspective on the common origin mechanisms of childhood tumors from a developmental biology viewpoint, contrasting them with adult cancers [7][9] - It identifies that childhood cancers primarily affect the hematopoietic system (e.g., leukemia) and the nervous system (e.g., brain tumors), which are most susceptible to malignancy during early development [10][11] Group 3: Developmental Vulnerabilities - The article explains that during embryonic development, tissue-forming cells (TFCs) act as "builders" of organs, and disruptions in their protective mechanisms can lead to mutations and cancer [13][14] - It discusses the similarities in the developmental processes of the hematopoietic and nervous systems, which may explain the prevalence of childhood cancers in these areas [15][16] Group 4: Future Directions - The authors suggest that understanding the developmental vulnerabilities can provide new strategies for preventing childhood cancers, including the potential use of protective molecules delivered through the placenta [21][24] - Future research directions include identifying similar genomic protection mechanisms in other organs and developing early intervention strategies for high-risk pregnancies [23][24]
浙江大学最新Cell子刊:贺永/吴梦婕/尹俊合作开发生物水凝胶电池,用于组织再生和心脏起搏
生物世界· 2026-01-21 04:28
Core Viewpoint - The article discusses the development of a biodegradable biohydrogel battery that addresses the limitations of traditional batteries in biomedical applications, particularly their poor biocompatibility and non-degradability [3][6]. Group 1: Research Development - A research team from Zhejiang University has developed a flexible, biodegradable battery using light polymerization 3D printing technology, which maintains a stable current of 0.001 - 6 mA at a voltage of 1.5 V [3][7]. - The biohydrogel battery exhibits high printing precision of 50 micrometers, with tensile strain and compression rates of 200% and 95%, respectively, matching the mechanical properties of biological tissues [7]. Group 2: Applications and Functionality - The biohydrogel battery can operate in dual current modes, providing microcurrents (0.001 - 1 mA) to promote tissue regeneration and higher currents (1 - 6 mA) for effective cardiac pacing, offering new avenues for tissue stimulation and biomedical applications [3][7]. - The battery utilizes a conductive ion-type chondroitin sulfate methacrylate-gelatin methacrylate hydrogel and InGa3-Cu nanoparticles as electrolyte and electrode materials, respectively, showcasing excellent mechanical properties and biocompatibility [6][7].