当前位置:首页>南昌>【南昌大学-药物“3D”创新团队】这种天然分子竟能通过“多器官联动”有效抗击动脉粥样硬化

【南昌大学-药物“3D”创新团队】这种天然分子竟能通过“多器官联动”有效抗击动脉粥样硬化

  • 2026-05-15 04:14:38
【南昌大学-药物“3D”创新团队】这种天然分子竟能通过“多器官联动”有效抗击动脉粥样硬化

动脉粥样硬化(AS)是导致全球心血管死亡的头号杀手,而高脂血症是其背后的核心推手。虽然现有的降脂疗法帮了大忙,但残余心血管风险依然存在,这就迫切需要科学家们寻找能够通过新机制调控脂质代谢的全新策略。近期,南昌大学药物“3D”创新团队(“3D”代表“Discovery,Delivery, and Detection”)Pharmaceutics》期刊上发表了一项最新研究。研究发现,一种名为神经节苷脂GM3的生物活性分子,在抗动脉粥样硬化方面展现出潜在“多器官联动”的治疗效果

GM3是一种天然的糖鞘脂。过去人们发现它会在严重的动脉斑块中大量堆积,但研究团队提出了一种大胆的设想:这其实不是致病因素,而是人体为了限制血管损伤而启动的自我防御机制。如果直接为身体补充外源性的GM3,是不是就能放大这种保护机制,化被动为主动,从而实现全身性的获益?为了验证这一假设,研究人员利用高脂饮食的小鼠模型进行了长达12周的实验,结果令人振奋

核心亮点1:直击痛点,显著缩小血管斑块注射外源性GM3后,小鼠主动脉斑块的形成显著减少。不仅如此,它还能有效降低血液中的甘油三酯、总胆固醇和坏胆固醇LDL-C)的水平。更妙的是,它并不会影响体内的好胆固醇HDL-C)水平,做到了精准打击致病脂蛋白。

核心亮点2:调控肝脏,截断源头+加速清除”GM3不仅在血管壁发挥作用,它还是个聪明的系统调度员。在肝脏中,它发挥了双重功效:截断源头:通过下调ApoB100MTTP等关键蛋白的表达,抑制了肝脏中极低密度脂蛋白(VLDL)的分泌,相当于关上了坏脂质输出的阀门。加速清除:同时上调了多种脂蛋白受体(如LdlrScarb1),给血液中的游离脂质清理让路,加速了它们的清除。

核心亮点3:阻击肠道,减少胆固醇吸收除了肝脏,GM3还能降低血液循环中的PCSK9水平,并通过下调NPC1L1蛋白的表达,直接限制了肠道对胆固醇的吸收。虽然这会使脂质在肝脏内有所积累,但研究并未发现这会引起肝功能障碍或全身毒性,安全性良好。

外源性GM3通过三大独立途径,对全身脂质代谢发挥全面的调节作用:1.肝脏双重打击:抑制输出——GM3通过下调ApoB100MTTP蛋白的表达,抑制极低密度脂蛋白(VLDL)的组装与分泌。促进清除——同时,GM3通过抑制PCSK9蛋白,增强了低密度脂蛋白受体(LDLR)介导的血脂清除能力。2.肠道阻滞(Intestinal Blockade)GM3通过下调空肠中的NPC1L1(一种胆固醇吸收转运蛋白),有效限制了肠道对外源性胆固醇的吸收。

 简而言之,外源性GM3作为一种强效的多靶点调节剂,通过协调肝脏脂蛋白代谢和限制肠道胆固醇吸收这套多器官联动策略,遏制动脉粥样硬化的发展。这种创新的多器官代谢分配策略,为未来开发基于GM3的药物、管理复杂的血脂异常提供潜新方向!

原文:

Jinhua Zhou, Hongda Zhuang, Qinghua Sheng, ZhitaoQiu, Yong Chen. Exogenous ganglioside GM3 attenuates atherosclerosis via multi-organ modulation of lipid metabolism. Pharmaceutics. 2026. 18: 547.

原文链接: https://doi.org/10.3390/pharmaceutics18050547

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  1. CONNECT:[ UseTime:0.000499s ] mysql:host=127.0.0.1;port=3306;dbname=aa460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000809s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000330s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000258s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000498s ]
  6. SELECT * FROM `set` [ RunTime:0.000214s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000521s ]
  8. SELECT * FROM `article` WHERE `id` = 511966 LIMIT 1 [ RunTime:0.000506s ]
  9. UPDATE `article` SET `lasttime` = 1778882521 WHERE `id` = 511966 [ RunTime:0.001547s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000247s ]
  11. SELECT * FROM `article` WHERE `id` < 511966 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000387s ]
  12. SELECT * FROM `article` WHERE `id` > 511966 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000405s ]
  13. SELECT * FROM `article` WHERE `id` < 511966 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000595s ]
  14. SELECT * FROM `article` WHERE `id` < 511966 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000949s ]
  15. SELECT * FROM `article` WHERE `id` < 511966 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001684s ]
0.078737s