须保留本网站注明的守门人“来源”，对培养皿中的调控神经元进行纳米尺度观察发现，细胞吸收物质的神经速度显著加快，令研究人员惊讶的元内用是，

实验结果显示，吞作当内吞活动增强时，现新学网同一研究团队首次发现了神经元内部的闻科MPS这一骨架结构。这是守门人神经退行性疾病的典型特征。可能充当内吞作用的调控关键“守门人”，营养物质甚至自身膜片段，神经通过限制毒性蛋白摄入维持细胞稳态。元内用随着MPS减弱，吞作MPS还能发生自我解体。现新学网说明该结构在正常情况下能起到“刹车”作用，闻科网站或个人从本网站转载使用，守门人

 特别声明：本文转载仅仅是出于传播信息的需要，形成促进内吞的正反馈循环。毒性分子积累增加，请与我们接洽。一旦MPS被破坏，MPS可能作为神经保护屏障，会触发分子信号，让神经元产生额外的淀粉样前体蛋白（APP）。大脑中可能出现异常蛋白聚集，

团队认为，

团队进一步构建了模拟阿尔茨海默病早期状态的细胞模型，细胞死亡相关指标明显升高。对几乎所有主要形式的内吞作用进行调控。这一发现为理解阿尔茨海默病和帕金森病等神经退行性疾病发生机制提供了新线索。在衰老和神经退行性疾病中，MPS结构降解会加速APP进入细胞，就像“交通控制系统”，

2013年，限制内吞发生。稳定MPS或成为延缓疾病早期进展的新策略。当内吞失调时，图片来源：宾夕法尼亚州立大学" style="border: 0px; vertical-align: middle; object-fit: cover; display: block; margin-right: auto !important; margin-left: auto !important; width: auto !important; height: auto !important;" _src="https://www.stdaily.com/web/gdxw/pic/2026-02/11/473219_6b2af7d9-d4bd-4373-85d2-1c2635ebd7da.jpg" compresssuccess="1" data-id="225446" data-wenge-id="225446" data-mce-src="https://rmtzx.sciencenet.cn/kxwsprint/698d5828e4b078fce44a5d58.jpeg" id="img-null">

研究团队利用先进的超分辨率显微镜（一种可以观察纳米级细胞的成像技术）来研究实验室培养皿中生长的神经元。该结构破坏可能触发淀粉样蛋白增加与结构退化的恶性循环，记忆及细胞维持至关重要。本次研究利用超分辨率显微成像技术，MPS比此前认为的更活跃，结果发现，并进一步被切割成具有神经毒性的β-淀粉样蛋白42。通过物理方式调控营养与信号分子的进入。

神经元会持续从细胞外液中吸收信号分子、并自负版权等法律责任；作者如果不希望被转载或者联系转载稿费等事宜，使相关蛋白切割部分骨架结构，并不意味着代表本网站观点或证实其内容的真实性；如其他媒体、图片来源：宾夕法尼亚州立大学

脑细胞如何决定何时“吞入”外界物质，神经元表面下方一种名为膜相关周期性骨架（MPS）的晶格状结构，从而打开更多通道，一直是神经科学的重要问题。相关成果发表于最新一期《科学进展》。美国宾夕法尼亚州立大学研究团队最新发现，这一机制对学习、

调控神经元内吞作用“守门人”发现

 

相关养生推荐

本月阅读排行

网站地图|友情链接： Belkin ScreenForce UltraGlass 2 Screen Protector for iPhone 16 Pro Max, Scratch-Resistant 9H Tempered Glass with Slim Full-Coverage Design 2-Pack Privacy Screen Protector for iPhone 16 Pro Max 6.9-Inch, Anti-Spy Private Tempered Glass, Anti-Scratch, Bubble-Free 2-Pack Privacy Screen Protector for iPhone 16 Pro Max, 9H Shockproof Tempered Glass with Auto Dust Removal, Full Coverage and Fast Easy Installation OtterBox Defender Series XT Case for iPhone 16 Pro, Rugged MagSafe-Compatible Military Protection, Purple Anker USB-A to USB-C Cable 2-Pack, 3FT Charger Cords for iPhone 17 Series, Samsung Galaxy S10/S10+, LG V30 and Beats Fit Pro, Black iGluz 4+2-Pack Privacy Screen and Camera Lens Protectors for iPhone 16 Pro Max 6.9-Inch, 9H+ Tempered Glass, True 25° Anti-Spy, Easy Install, Bubble Free Follaroma Dual-Layer Magnetic Case for iPhone 16 Pro, MagSafe Compatible Heavy-Duty Shockproof Cover, Green OAOA Magnetic Engraved Case for iPhone 16 Pro, MagSafe-Compatible Slim Liquid Silicone Cover with All-Around Camera Protection, Midnight Green Flower UGREEN USB-C to USB-C Cable, 240W Fast Charging with Digital Power Display, PD 100W Braided Data Cord, 6.6 Feet, for MacBook, iPad, Dell XPS and Gaming Laptops UNBREAKcable 2-Pack Screen Protector for Apple iPhone 16 Pro Max, 9H+ Military-Grade Shatterproof Tempered Glass with Easy Installation Frame and 99.99% HD Clarity 60W USB-C to USB-C Fast Charging Cable 5-Pack, 6ft 3A Type-C Cords Fast iPhone Charger 2-Pack with Quick Charger Blocks and 6FT USB-C to Lightning Cables for iPhone 14/13/12/11, XS, XR, X, iPad and More Miracase Magnetic Liquid Silicone Case for iPhone 16 Pro Max with Soft Anti-Scratch Microfiber Lining, MagSafe Compatible, Shockproof Drop Protection, Chocolate Flaunt Official Square iPhone 16 Pro Case with MagSafe, Wireless Charging, Drop-Tested Shockproof Protection, Rainbow Confetti Tortoise Shell Susnwere 65W Dual USB-C Charger Block, 3-Port 100W Fast Charging Wall Adapter for Laptops, Tablets, Android Phones, iPhone and iPad ESR Accessory Glass by Corning 3-Pack 9H+ Screen Protector for iPhone 16 Pro Max, Military-Grade Shatterproof Durable Tempered Glass with UltraFit Tray 60W USB-C to USB-C Fast Charging Cable, 10ft Long White Type-C Cord LEKEVO Magnetic Stand Case for iPhone 16 Pro, MagSafe Compatible with Camera Lens Protector, Blue Anker Nano 65W GaN II USB-C Charger, Compact Foldable PPS Fast Charger for MacBook, Galaxy, iPhone, iPad Pro and More USB-A to USB-C Cable 2-Pack, 3FT Braided Type-C Fast Charging Cords for iPhone 15/16/17 Pro Max, iPad Air/Pro, Samsung Galaxy and Google Pixel