会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 77. 发明公开
    • BRAIN-ENHANCED DELIVERY OF NEUROACTIVE PEPTIDES BY SEQUENTIAL METABOLISM
    • 通过顺序代谢增强神经活性肽的脑部递送
    • EP0661986A1
    • 1995-07-12
    • EP93922358.0
    • 1993-09-17
    • UNIVERSITY OF FLORIDA
    • BODOR, Nicholas, S.
    • C07K5C07K7C07K14A61K38
    • C07K7/06A61K38/00A61K47/559C07K5/0806C07K5/0823C07K5/1008C07K5/1024C07K14/70
    • The invention provides novel peptide derivatives which are designed to deliver pharmacologically active peptides into the central nervous system by sequential metabolism. The peptide is placed in a molecular environment which disguises its peptide nature and provides biolabile, lipophilic functions to penetrate the blood-brain barrier by passive transport. The design incorporates a dihydropyridine-type redox targetor moiety, an amino acid or di- or tripeptide spacer inserted between the targetor and N-terminal amino acid unit of the peptide and a bulky, lipophilic substituent protecting the C-terminal amino acid unit of the peptide. The dihydropyridine-type targetor undergoes an enzymatically mediated oxidation to a hydrophilic, membrane-impermeable pyridinium salt. That polar targetor-peptide conjugate is trapped behind the lipoidal blood-brain barrier. Over time, cleavage of the lipophilic ester from the peptide by esterase and/or lipase enzymes and enzymatic cleavage of the targetor-spacer from the peptide results in release of the desired peptide in the brain.
    • 本发明提供了设计用于通过顺序代谢将药理活性肽递送至中枢神经系统的新型肽衍生物。 将肽置于分子环境中,该环境伪装其肽性质并提供生物不稳定的亲脂性功能以通过被动转运穿透血脑屏障。 该设计包含二氢吡啶型氧化还原靶向部分,插入到靶标和肽的N-末端氨基酸单元之间的氨基酸或二肽或三肽间隔物,以及保护肽的C-末端氨基酸单元的庞大的亲脂性取代基 肽。 二氢吡啶类型的靶向物经历酶促介导的氧化成亲水的,不透膜的吡啶鎓盐。 该极性靶标 - 肽缀合物被捕获在类脂血脑屏障之后。 随着时间的过去,通过酯酶和/或脂肪酶从肽上切割亲脂性酯并从肽上酶促切割靶或间隔子导致所需肽在脑中释放。