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申 请 号:CN201710488785
专利名称:一种靶向DNA纳米自组装体载NF‑kB decoy ODNs的制备方法及其应用
专利权人:郑州大学
交易方式:协议
参考价格: 面议
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名称: | 一种靶向DNA纳米自组装体载NF‑kB decoy ODNs的制备方法及其应用 |
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申请号: | CN201710488785 |
申请日期: | 2017-06-23 |
申请人: | 郑州大学 |
发明人: | 赵永星; 张楠; 华海婴; 付玲玲 |
地址: | 450001 河南省郑州市高新区科学大道100号 |
主分类号: | A61K48/00 |
分类号: | A61K48/00; A61K47/54; A61K47/64; A61P29/00; A61P19/02 |
主权项: | 一种靶向DNA纳米自组装体载NF-κB decoy ODNs的制备方法,其特征在于,步骤如下:(1)将四条单链直链DNA与组成NF-κB decoy ODNs的两条链NF- κB C、NF-κB D在体外缓冲盐溶液中,退火自组装形成TD-dODNs溶液;(2)ssDNA-Peptide:低速搅拌向ssDNA中滴加交联剂,在pH7~9条件下,室温反应2h,透析24h除去未反应的多肽,得到ssDNA-SMCC,然后加入VCAM-1靶向多肽,pH6.5~7.5条件下,反应8~12h,透析24h除去未反应的多肽,得到ssDNA-Peptide;(3)向步骤(1)中制备的TD-dODNs溶液中加入ssDNA-peptide,以2 min/℃的速度从40℃降至20℃,完成靶向DNA纳米自组装体载NF-κB decoy ODNs的制备。 |
摘要: | 本发明属于医药技术领域,涉及一种靶向DNA纳米自组装体载NF‑κB decoy ODNs的制备方法及其应用。靶向DNA纳米自组装体载NF‑κB decoy ODNs由DNA四面体、NF‑κB decoy ODNs、VCAM‑1靶向多肽组成,其中NF‑κB decoy ODNs和VCAM‑1靶向多肽通过碱基互补配对原则连接到DNA纳米自组装体上。本发明的DNA纳米自组装体的平均粒径小于10nm。靶向多肽修饰的DNA纳米自组装体载NF‑κB decoy ODNs提高了基因药物的靶向性,提高了药物的体外抗炎效果,对细胞及组织基本无毒性。 |
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2017-11-10 | 公开 | js/timeglider/js/timeglider/icons/verticalLineGray.png | 50 | |||||
2017-12-05 | 实质审查的生效 | js/timeglider/js/timeglider/icons/verticalLineGray.png | 50 |
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#3 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/Library/Think/App.class.php(173): ReflectionMethod->invoke(Object(Home\Controller\PraiseController))
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#8 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/index.php(27): require('/home/ftp/1520/...')
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