New miceller agent for antioxidation therapy based on XO inhibition using AHPP
基于 AHPP 的 XO 抑制的新型抗氧化治疗胶束剂
基本信息
- 批准号:20590049
- 负责人:
- 金额:$ 2.58万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We had previously discovered that AHPP exhibited a potent inhibitory effect against xanthine oxidase (XO). The difficulty to make AHPP as pharmaceutical agent resides in poor water solubility and low MW that has short in vivo t1/2 and no targeting capacity to the diseased site.To solve these problems we synthesized PEG-conjugate of AHPP and SMA (styrene-co-maleic acid) micelles containing AHPP. As the results, we found (1) XO inhibitory activity in vitro of both polymeric AHPP showed about 80% of that of free AHPP, and satisfactory. (2) In vivo evaluation of ischemia-reperfusion (I/R) model of liver, the polymeric AHPP showed significant effect preventing I/R induced tissue (liver) toxicity. (3) Oral administration of PEG-AHPP in lipid formation in the spontaneously hypertensive rats resulted in lowering of blood pressure to normal range. (4) The antihypertensive effect lasted even more than 24 hr after one oral administration.
我们之前发现AHPP对黄嘌呤氧化酶(XO)表现出有效的抑制作用。 AHPP作为药剂的难点在于水溶性差和分子量低,体内t1/2短且对病变部位没有靶向能力。为了解决这些问题,我们合成了AHPP和SMA的PEG结合物(苯乙烯-co -马来酸)含有AHPP的胶束。结果,我们发现(1)两种聚合AHPP的体外XO抑制活性约为游离AHPP的80%,并且令人满意。 (2)在肝脏缺血再灌注(I/R)模型的体内评价中,聚合AHPP显示出显着的预防I/R引起的组织(肝脏)毒性的效果。 (3)口服PEG-AHPP促进自发性高血压大鼠的脂质形成,导致血压降至正常范围。 (4)口服1次后降压作用可持续24小时以上。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Limitations and augmentations of the EPR effect in solid tumor
EPR 在实体瘤中的作用的局限性和增强
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:H.Maeda;H.Nakamura;J.Fang
- 通讯作者:J.Fang
Enhanced Permeability and Retention (EPR) Effect of Solid Tumor-The Universal Mechanism for Tumor Selective Delivery Using Macromolecular Therapeutics and Beyond
实体瘤的增强渗透性和保留(EPR)效应——利用大分子治疗及其他方法选择性递送肿瘤的通用机制
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:Seimiya;H.;Muramatsu;Y.;Tokunaga;S.;Tahara;H.;Ueno;M.;Yamori;T.;Tsuruo;T.;潘鉉承;前田浩;矢守隆夫;中村浩之;清宮啓之;H. Maeda
- 通讯作者:H. Maeda
制癌剤開発における諸問題とDDSの役割(特別講演)
抗癌药物开发中的问题和DDS的作用(特别讲座)
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:関孝弘;方軍;前田浩;Seimiya H;矢守隆夫;前田浩
- 通讯作者:前田浩
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MAEDA Hiroshi其他文献
MAEDA Hiroshi的其他文献
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Growth inhibition of selected bacterial species by peptide nucleic acids for control of oral microflora
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- 批准号:
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23500739 - 财政年份:2011
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21592624 - 财政年份:2009
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20015045 - 财政年份:2008
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19592387 - 财政年份:2007
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Grant-in-Aid for Scientific Research (C)
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16500415 - 财政年份:2004
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相似海外基金
Molecular design of purines and purine nucleosides for potential xanthine oxidase inhibitory activity
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