ACS Nano:上海交大构建仿生脂蛋白纳米药物治疗干预阿尔兹海默病

2014-04-05 佚名 生物360

近日,国际著名学术期刊 ACS Nano(影响因子 12.06)刊登了上海交通大学医学院药理学和化学生物学系高小玲课题组最新研究成果:设计并率先构建了仿生脂蛋白纳米药物,可用于降低脑内β淀粉样蛋白沉积、延缓阿尔茨海默病的疾病进程。该杂志同时刊登了国际知名纳米医学专家、以色列特拉维夫大学 Dan Peer 教授专门为此撰写的述评文章,指出这种精妙设计的结构有望为阿尔兹海默病的治疗干预提供一种全新的纳



近日,国际著名学术期刊 ACS Nano(影响因子 12.06)刊登了上海交通大学医学院药理学和化学生物学系高小玲课题组最新研究成果:设计并率先构建了仿生脂蛋白纳米药物,可用于降低脑内β淀粉样蛋白沉积、延缓阿尔茨海默病的疾病进程。该杂志同时刊登了国际知名纳米医学专家、以色列特拉维夫大学 Dan Peer 教授专门为此撰写的述评文章,指出这种精妙设计的结构有望为阿尔兹海默病的治疗干预提供一种全新的纳米药物。

阿尔茨海默病是一种最为常见的老年性痴呆类型,但目前临床上尚缺乏有效的干预手段。业已证明阿尔茨海默病的核心致病物质是β淀粉样蛋白,通过降低脑内β淀粉样蛋白水平,早期干预阿尔茨海默病的病理生理进程已成为国际生物医药界共同探索的领域。

高小玲课题组长期从事脑靶向纳米递药系统和针对阿尔茨海默病诊疗的关键纳米技术研究。最新研究成功模拟天然高密度脂蛋白,设计并率先构建了既能通过血脑屏障又具有β淀粉样蛋白亲和特性的仿生脂蛋白纳米药物,通过介导脑内小胶质细胞、星形胶质细胞和外周肝细胞对β淀粉样蛋白的摄取和降解,有效促进了脑内β淀粉样蛋白的清除。科研人员介绍,为保护中枢稳定性,人体的脑血管内皮细胞间紧密连接形成血脑屏障,如同一道闸门,98%以上的小分子药物和100%的大分子药物不能进入大脑发生作用,而该仿生纳米药物模拟了人体内的高密度脂蛋白,可顺利通过血脑屏障,作用于大脑。实验证明,该仿生纳米药物的应用大大改善了阿尔茨海默病疾病模型小鼠的认知功能。同时该纳米药物可高效载药,特别适于针对阿尔茨海默病的长期多模式治疗,具有良好的转化应用前景。

长期从事脂蛋白研究的专家、北德克萨斯大学健康科学中心 Andras G. Lacko(未参与该研究)教授认为这是一个缜密精巧的概念验证研究,提供了一种阿尔茨海默病治疗的新策略。

该论文的第一作者为硕士研究生宋清香。此项成果得到上海交通大学医学院陈红专教授和加拿大多伦多大学郑岗教授的共同指导,并受到国家重大科学研究计划、国家自然科学基金和上海市科委国际合作等基金资助。科研人员表示今后将在药物作用方式、载药特性等方面做进一步研究,目前该成果已申请国家发明专利,并正在申请国际专利。

原始出处:

Qingxiang Song, Meng Huang, Lei Yao, Xiaolin Wang, Xiao Gu, Juan Chen, Jun Chen, Jialin Huang, Quanyin Hu, Ting Kang, Zhengxing Rong, Hong Qi, Gang Zheng, Hongzhuan Chen, and Xiaoling Gao. Lipoprotein-Based Nanoparticles Rescue the Memory Loss of Mice with Alzheimer’s Disease by Accelerating the Clearance of Amyloid-Beta. ACS Nano, February 17, 2014; DOI: 10.1021/nn4058215

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    2014-04-07 yaanren
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    2014-04-07 xugc
  6. [GetPortalCommentsPageByObjectIdResponse(id=1804596, encodeId=27a6180459665, content=<a href='/topic/show?id=20cae745155' target=_blank style='color:#2F92EE;'>#纳米药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77451, encryptionId=20cae745155, topicName=纳米药)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6c32257, createdName=DEXTER3139, createdTime=Sun Sep 07 12:50:00 CST 2014, time=2014-09-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279050, encodeId=943912e9050f5, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Mon Apr 07 01:50:00 CST 2014, time=2014-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1402639, encodeId=5322140263978, content=<a href='/topic/show?id=60ca9e761ce' target=_blank style='color:#2F92EE;'>#阿尔兹海默#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97761, encryptionId=60ca9e761ce, topicName=阿尔兹海默)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=be952422716, createdName=habb, createdTime=Mon Apr 07 01:50:00 CST 2014, time=2014-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1424638, encodeId=1cf4142463833, content=<a href='/topic/show?id=5a3b8441438' target=_blank style='color:#2F92EE;'>#脂蛋白#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84414, encryptionId=5a3b8441438, topicName=脂蛋白)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=23ea3924919, createdName=juliusluan79, createdTime=Mon Apr 07 01:50:00 CST 2014, time=2014-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475663, encodeId=094514e56631e, content=<a href='/topic/show?id=cbcce745264' target=_blank style='color:#2F92EE;'>#纳米药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77452, encryptionId=cbcce745264, topicName=纳米药物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a11c7248108, createdName=xugc, createdTime=Mon Apr 07 01:50:00 CST 2014, time=2014-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553807, encodeId=0f04155380eb3, content=<a href='/topic/show?id=0ba81988692' target=_blank style='color:#2F92EE;'>#上海交大#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=19886, encryptionId=0ba81988692, topicName=上海交大)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8a6414444709, createdName=gao_jian4222, createdTime=Mon Apr 07 01:50:00 CST 2014, time=2014-04-07, status=1, ipAttribution=)]

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