当前位置:首页>南京>南京大学顾宁、东南大学盛静逸Signal Transduction and Targeted Therapy !!仿生纳米反应器实现动脉粥样硬化精准靶向治疗新突破

南京大学顾宁、东南大学盛静逸Signal Transduction and Targeted Therapy !!仿生纳米反应器实现动脉粥样硬化精准靶向治疗新突破

  • 2026-03-24 19:10:54
南京大学顾宁、东南大学盛静逸Signal Transduction and Targeted Therapy !!仿生纳米反应器实现动脉粥样硬化精准靶向治疗新突破

医学研究前沿——聚焦医学前沿研究进展。100多万医学领域硕博医生们订阅的微信公众号。点击标题下蓝字“医学研究前沿”关注,我们将为您提供最有价值、最前沿的医学前沿资讯。

动脉粥样硬化作为心血管疾病中最常见的类型,是全球范围内导致疾病发生和残疾的主要原因之一。该病症通常被视为一种慢性炎症性疾病,其发病机制与脂质代谢紊乱及血管功能障碍密切相关。在动脉粥样硬化斑块微环境中,高浓度活性氧物质会促进氧化低密度脂蛋白的积聚,进而引发巨噬细胞募集和细胞外脂质核心形成。衰老的内皮细胞、平滑肌细胞和巨噬细胞通过分泌炎症因子与活性氧,进一步加速疾病进展。研究表明,超氧化物歧化酶和谷胱甘肽过氧化物酶等天然酶对动脉粥样硬化具有保护作用,但其实际应用受限于成本高昂和稳定性差的问题。因此,开发新型治疗策略以高效调节斑块微环境成为当前研究的重要方向。

南京大学顾宁教授团队与东南大学盛静逸教授合作,成功设计了一种受自然启发的限域式级联纳米反应器,命名为USPB@SeDMSN@NM。该纳米平台通过将超小普鲁士蓝纳米粒子组装到硒掺杂的树枝状介孔二氧化硅纳米粒子的大孔中,构建出具有超氧化物歧化酶、过氧化氢酶和谷胱甘肽过氧化物酶多种模拟酶活性的受限催化系统。硒掺杂介孔二氧化硅为纳米粒子提供了丰富的固定化位点,使其能够以级联方式依次清除活性氧物质,并通过形成受限反应环境显著提高底物浓度和整体催化效率。此外,研究团队在纳米反应器表面包覆中性粒细胞膜,赋予其主动靶向动脉粥样硬化斑块的能力。这种仿生设计不仅增强了纳米颗粒的生物相容性,还实现了对病变部位的特异性递送。

体外和体内实验结果表明,该纳米反应器能够有效减轻巨噬细胞和内皮细胞的炎症反应,通过高效清除自由基抑制泡沫细胞形成,并展现出显著的抗衰老作用。研究证实,纳米反应器可保护细胞DNA免受氧化损伤,延缓细胞衰老进程,从而多维度干预动脉粥样硬化的发展。这种基于自然原理的级联催化策略为动脉粥样硬化的靶向治疗提供了新思路,凸显了仿生纳米材料在抗氧化和抗衰老治疗中的潜力。该研究成果发表于《Signal Transduction and Targeted Therapy》期刊,为心血管疾病的临床治疗开辟了新的技术路径。

自然基金本子没思路,不知道怎么写?强烈推荐自然基金项目申报书参考范文合集。
1.靶向线粒体钙单向转运体MCU调控肿瘤铁死亡诱导巨噬细胞极化增强抗肿瘤免疫的机制研究
2. 骨髓微环境中TLR2-MyD88信号调控BMDC亚群极化及Treg功能失调在再生障碍性贫血发病中的作用及机制研究
3. 肿瘤细胞支链酮酸通过代谢重编程髓系来源抑制细胞促进肿瘤免疫逃逸的分子机制研究
4. 酶响应脂质体透软骨递送及骨关节炎软骨降解微环境协同调控治疗研究

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  1. CONNECT:[ UseTime:0.000542s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000600s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000321s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000335s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000569s ]
  6. SELECT * FROM `set` [ RunTime:0.000243s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000588s ]
  8. SELECT * FROM `article` WHERE `id` = 509455 LIMIT 1 [ RunTime:0.000403s ]
  9. UPDATE `article` SET `lasttime` = 1774492045 WHERE `id` = 509455 [ RunTime:0.010590s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000304s ]
  11. SELECT * FROM `article` WHERE `id` < 509455 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000478s ]
  12. SELECT * FROM `article` WHERE `id` > 509455 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000391s ]
  13. SELECT * FROM `article` WHERE `id` < 509455 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000705s ]
  14. SELECT * FROM `article` WHERE `id` < 509455 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001070s ]
  15. SELECT * FROM `article` WHERE `id` < 509455 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000817s ]
0.090989s