微管蛋白可防止与阿尔茨海默病和帕金森病相关的有毒脑蛋白团块

* *Draft:* 在发表在《自然-通讯》的一项研究中，研究人员发现微管蛋白——一种作为微管构建单元的蛋白质——可能有助于防止这些毒性积累。 * *Refinement:* "Building block" -> 构建单元/基石. "Toxic accumulations" -> 毒性积聚/积累. "Nature Communications" -> 《自然-通讯》 (standard translation). * *Polished:* 在一项发表于《自然-通讯》（Nature Communications）的研究中，研究人员发现微管蛋白（tubulin）——一种作为微管构建单元的蛋白质——可能有助于防止这些毒性积聚。 * **Segment 2:** * *Source:* "Microtubules act as the cell's internal 'railway tracks,' helping transport materials and maintain structure." * *Draft:* 微管充当细胞内部的“铁轨”，帮助运输物质并维持结构。 * *Refinement:* "Railway tracks" -> 铁轨/轨道. "Transport materials" -> 物质运输. * *Polished:* 微管充当细胞内部的“铁轨”，协助物质运输并维持细胞结构。 * **Segment 3:** * *Source:* "According to the findings, tubulin can keep Tau and alpha synuclein from forming damaging aggregates and instead encourage them to perform their normal functions inside healthy neurons." * *Draft:* 根据发现，微管蛋白可以阻止Tau和α-突触核蛋白形成破坏性的聚集体，而是鼓励它们在健康神经元内执行正常功能。 * *Refinement:* "Tau and alpha synuclein" -> Tau蛋白和α-突触核蛋白 (standard scientific names). "Aggregates" -> 聚集体. "Encourage" -> 促进/引导. * *Polished:* 研究结果表明，微管蛋白可以阻止Tau蛋白和α-突触核蛋白形成破坏性的聚集体，转而促使它们在健康的神经元内发挥正常功能。 * **Segment 4 (Heading):** * *Source:* "Toxic Protein Clumps and Brain Disease" * *Draft:* 毒性蛋白团块与脑部疾病。 * *Refinement:* "Clumps" -> 团块/团簇. * *Polished:* **毒性蛋白团块与脑部疾病** * **Segment 5:** * *Source:* "Tau and alpha synuclein are well known for their roles in neurodegenerative diseases like Alzheimer's and Parkinson's." * *Draft:* Tau和α-突触核蛋白因其在阿尔茨海默病和帕金森病等神经退行性疾病中的作用而闻名。 * *Refinement:* Standard names again. * *Polished:* “Tau蛋白和α-突触核蛋白因其在阿尔茨海默病和帕金森病等神经退行性疾病中的作用而广为人知。 * **Segment 6:** * *Source:* "In these conditions, these proteins can misfold, stick together and form harmful aggregates that damage neurons and contribute to memory loss, movement problems and other symptoms," said first author Dr. Lathan Lucas, postdoctoral associate of biochemistry and molecular pharmacology in Dr. Allan Ferreon's lab." * *Draft:* “在这些条件下，这些蛋白质会错误折叠，粘在一起并形成有害的聚集体，损害神经元并导致记忆丧失、运动问题和其他症状，”第一作者、Allan Ferreon博士实验室的生物化学和分子药理学博士后副研究员Lathan Lucas博士说。 * *Refinement:* "Misfold" -> 错误折叠. "Stick together" -> 粘连/聚集. "Postdoctoral associate" -> 博士后助理/副研究员. "Biochemistry and molecular pharmacology" -> 生物化学与分子药理学. * *Polished:* 在这些病理条件下，这些蛋白质会发生错误折叠、粘连并形成有害的聚集体，从而损伤神经元，导致记忆丧失、运动障碍及其他症状，”第一作者、Allan Ferreon博士实验室生物化学与分子药理学博士后助理Lathan Lucas博士表示。 * **Segment 7:** * *Source:* "But Tau and alpha synuclein also fulfill essential functions in healthy neurons - they help maintain cell structure and support communication by interacting with tubulin and contributing to microtubule assembly and stabilization." * *Draft:* “但是Tau和α-突触核蛋白在健康神经元中也履行重要功能——它们通过与微管蛋白相互作用并促进微管组装和稳定来帮助维持细胞结构并支持通讯。” * *Refinement:* "Fulfill essential functions" -> 发挥/履行重要功能. "Support communication" -> 支持通讯（神经信号传导）. "Assembly and stabilization" -> 组装与稳定. * *Polished:* “但Tau蛋白和α-突触核蛋白在健康神经元中也发挥着至关重要的作用——它们通过与微管蛋白相互作用，促进微管的组装和稳定，从而协助维持细胞结构并支持细胞间的信号通讯。” * **Segment 8:** * *Source:* "Tau and alpha synuclein carry out both their beneficial and harmful activities within tiny cellular droplets known as condensates." * *Draft:* Tau和α-突触核蛋白在被称为凝聚体的微小细胞液滴内进行其有益和有害的活动。 * *Refinement:* "Condensates" -> 凝聚体 (biological term for biomolecular condensates). "Droplets" -> 液滴. * *Polished:* Tau蛋白和α-突触核蛋白的有益活动与有害活动均发生在被称为“凝聚体”（condensates）的微小细胞液滴内。 * **Segment 9:** * *Source:* "Because these droplets are involved in disease-related processes, scientists have considered preventing their formation as a possible treatment strategy." * *Draft:* 因为这些液滴参与疾病相关过程，科学家考虑防止它们的形成作为一种可能的治疗策略。 * *Refinement:* Smooth out the sentence structure. * *Polished:* 由于这些液滴参与了疾病相关过程，科学家们曾考虑阻止其形成作为一种潜在的治疗策略。 * **Segment 10:** * *Source:* "However, condensates also play important roles in normal brain function, raising concerns that eliminating them could disrupt healthy neuronal activity." * *Draft:* 然而，凝聚体在正常大脑功能中也扮演重要角色，引发了消除它们可能破坏健康神经元活动的担忧。 * *Refinement:* "Raising concerns" -> 引发了...的担忧. * *Polished:* 然而，凝聚体在正常大脑功能中也扮演着重要角色，这引发了人们的担忧：消除它们可能会破坏健康的神经元活动。 * **Segment 11 (Heading):** * *Source:* "Redirecting Proteins Toward a Healthy Role" * *Draft:* 将蛋白质重定向至健康角色。 * *Refinement:* "Redirecting" -> 引导/重定向. * *Polished:* **引导蛋白质发挥健康作用** * **Segment 12:** * *Source:* "This led us to the following idea: what if instead of preventing the formation of droplets, we created conditions that would drive Tau and alpha synuclein inside the droplets toward their healthy path, discouraging them from taking the disease path?" said Ferreon, associate professor of biochemistry and molecular pharmacology and co-corresponding author of the work." * *Draft:* “这让我们产生了以下想法：如果不阻止液滴的形成，而是创造条件驱使液滴内的Tau和α-突触核蛋白走向健康路径，阻止它们走疾病路径，会怎样？”生物化学和分子药理学副教授、该工作的共同通讯作者Ferreon说。 * *Refinement:* "Co-corresponding author" -> 共同通讯作者. "Drive... toward" -> 引导...走向. * *Polished:* “这让我们产生了如下想法：如果不阻止液滴的形成，而是创造条件引导液滴内的Tau蛋白和α-突触核蛋白走向健康路径，阻止它们走向致病路径，结果会怎样？”该研究的共同通讯作者、生物化学与分子药理学副教授Ferreon说道。 * **Segment 13 (HTML tag):** * ` ` -> Keep as is? The prompt asks to translate the content. Usually, HTML tags are structural. I should probably keep the structure or ignore it if it's just a placeholder. The * Key terms: neurodegeneration (神经退行性变), passive casualty (被动的受害者/牺牲品), active protector (积极的保护者), tubulin pool (微管蛋白库/池), blocking droplet formation (阻断液滴形成 - referring to liquid-liquid phase separation context likely), curb (抑制), selective therapeutic strategy (选择性治疗策略). * *Segment 6:*

Other contributors to the study include co-first author Phoebe S. Tsoi, My Diem Quan, Kyoung-Jae Choi and co-corresponding author Josephine C. Ferreon, all at Baylor College of Medicine.

* Key terms: co-first author (共同第一作者), co-corresponding author (共同通讯作者), Baylor College of Medicine (贝勒医学院). Names need transliteration or keeping original. Standard practice in Chinese scientific news is often to keep names in English or transliterate common ones. I will keep names in English for accuracy, or transliterate if standard. "Phoebe S. Tsoi" -> 菲比·S·蔡 (maybe), "My Diem Quan" -> 迈·迪姆·匡 (maybe), "Kyoung-Jae Choi" -> 崔英宰 (Korean name). To ensure "scientific data and technical details" are preserved without error, keeping names in English is often the safest and most professional approach in Chinese scientific reports unless there are well-known standard translations. I will keep the names in English to avoid misidentification. * *Segment 7:*

The research was supported by NINDS-NIH grant R01 NS105874, Welch Foundation grant Q-2097-20220331 and NIGMS-NIH grant R01 GM122763.

* Key terms: NINDS-NIH (美国国立神经疾病和中风研究所-美国国立卫生研究院), Welch Foundation (韦尔奇基金会), NIGMS-NIH (美国国立综合医学科学研究所-美国国立卫生研究院). Grant numbers must be preserved exactly. 3. **Drafting the Translation:** * *Draft 1:* “当微管蛋白水平较低时（正如在阿尔茨海默病中发现的那样），微管数量减少，Tau蛋白和α-突触核蛋白会形成毒性聚集体，”Lucas说。 * *Draft 2:* “但当微管蛋白存在时，Tau蛋白和α-突触核蛋白会从有害聚集体转移，转而促进健康微管的组装，”Lucas说。“微管蛋白通过给这些蛋白分配有益的工作，从而重定向了它们的活性。” * *Draft 3:* 研究结果表明，微管蛋白在保护大脑方面发挥的作用可能比以前认为的要积极得多。 * *Draft 4:* “我们的发现显著改变了微管蛋白在神经退行性变中的角色，从疾病的被动受害者转变为抵抗毒性蛋白聚集的积极保护者，”Ferreon说。“增加微管蛋白库，而不是阻断液滴形成，可以在抑制毒性聚集的同时保留Tau蛋白和α-突触核蛋白的健康作用，这提供了一种潜在的选择性治疗策略。” * *Draft 5:* 该研究的其他贡献者包括共同第一作者Phoebe S. Tsoi、My Diem Quan、Kyoung-Jae Choi以及共同通讯作者Josephine C. Ferreon，他们均来自贝勒医学院。 * *Draft 6:* 该研究得到了NINDS-NIH资助R01 NS105874、韦尔奇基金会资助Q-2097-20220331以及NIGMS-NIH资助R01 GM122763的支持。 4. **Refining and Polishing:** * *Refining Draft 1:* "as it has been found" -> "正如...中所发现". "less abundant" -> "丰度降低" or "数量减少". "丰度降低" sounds more scientific. "toxic aggregates" -> "毒性聚集体". * *Refining Draft 2:* "shift away from" -> "不再形成" or "脱离". "shift away from harmful aggregates" -> "不再形成有害聚集体". "productive to do" -> "有益的工作" or "建设性工作". "有益的工作" fits well. * *Refining Draft 4:* "passive casualty" -> "被动的受害者" is okay, "被动的牺牲品" is also good. Let's use "被动的受害者". "Boosting the tubulin pool" -> "增加微管蛋白库" or "提升微管蛋白水平". "Pool" in biology often translates to "库". "blocking droplet formation" -> "阻断液滴形成" (refers to phase separation). "curb" -> "遏制" or "抑制". * *Refining Draft 5:* Names: Keeping them in English is standard for less common names in scientific news to ensure accuracy. * *Refining Draft 6:* Grant numbers are crucial data. Must be exact. NINDS-NIH -> 美国国立卫生研究院下属国立神经疾病和中风研究所 (NINDS-NIH). Usually, keeping the acronym NINDS-NIH is acceptable and clearer in professional contexts, or translating fully. I will use the acronyms followed by the grant number for precision, as is common in Chinese scientific reporting. 5. **Final Polish (Mental Check):** * "When tubulin levels are low..." -> “当微管蛋白水平较低时……” * "microtubules are less abundant" -> “微管丰度降低” * "Tau and alpha synuclein" -> “Tau蛋白和α-突触核蛋白”（Adding "蛋白" makes it clearer in Chinese context, though "Tau" is often used alone. "Alpha synuclein" definitely needs "蛋白" or "α-突触核蛋白"). * "shift away from harmful aggregates" -> “转而不再形成有害聚集体” or “脱离有害聚集体”. Let's go with “不再形成有害聚集体” for clarity of action. * "giving them something productive to do" -> “让它们有事可做” is too colloquial. “赋予它们有益的功能” or “让它们执行