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    • 8. 发明公开
    • pH 민감성 블록공중합체를 이용한 약물전달체 제조 및응용
    • 使用PH-敏感性嵌段共聚物及其应用制备药物输送系统
    • KR1020080095130A
    • 2008-10-28
    • KR1020070039524
    • 2007-04-23
    • 한국과학기술연구원
    • 권익찬이두성김광명김봉섭박경순김민상한종권고진영
    • A61K9/52A61P35/00
    • A61K9/5089A61K9/5031
    • A drug delivery system is provided to be easily disintegrated at low pH of a topical portion of various cancers or inflammatory diseases due to high sensitivity on the pH and decrease toxicity of a drug itself, thereby releasing a large amount of a drug into the diseased portion selectively to enhance therapeutic effect of the drug and being useful for treating various cancers or inflammatory diseases. A drug delivery system consists of a pH-sensitive block copolymer encapsulating a hydrophobic drug therein and having a hydrophilic moiety and a hydrophobic moiety, wherein the hydrophilic moiety is polyethylene glycol, poly(N-2-(hydroxypropyl)methacrylamide), poly(divinyl ether-co-maleic anhydride) or poly(styreneco-maleic anhydride), the hydrophobic moiety is poly(beta-amino ester)(PAE), poly(amido amine)(PAA) or a copolymer thereof(PAEA), and the drug is an anti-cancer agent selected from the group consisting of paclitaxel, doxorubicin, retinoic acid, cis-platin, camptothecin, 5-FU, docetaxel, tamoxifen, anasterozole, carboplatin, topotecan, belotecan, irinotecan, gleevec and vincristine or an anti-inflammatory agent selected from the group consisting of aspirin, salicylates, ibuprofen, naproxen, fenoprofen, indomethacin, phenyltazone, methotrexate, cyclophosphamide, mechlorethamine, dexamethasone, prednisolone, celecoxib, valdecoxib, nimesulide, cortisone and corticosteroid.
    • 提供了药物递送系统,由于对pH高的敏感性和药物本身的毒性降低,因此容易在各种癌症或炎性疾病的局部部分的低pH下崩解,从而将大量药物释放到患病部位 选择性地增强药物的治疗效果并且可用于治疗各种癌症或炎性疾病。 药物递送系统由在其中封装疏水性药物并具有亲水部分和疏水部分的pH敏感性嵌段共聚物组成,其中亲水部分是聚乙二醇,聚(N-2-(羟丙基)甲基丙烯酰胺),聚(二乙烯基 醚 - 共 - 马来酸酐)或聚(苯乙烯 - 顺丁烯二酸酐),疏水部分是聚(β-氨基酯)(PAE),聚(酰氨基胺)(PAA)或其共聚物(PAEA) 是选自紫杉醇,多柔比星,视黄酸,顺铂,喜树碱,5-FU,多西紫杉醇,他莫昔芬,西曲唑,卡铂,托泊替康,美沙替丹,伊立替康,格列卫和长春新碱或抗生素的抗癌剂, 选自阿司匹林,水杨酸酯,布洛芬,萘普生,非诺洛芬,吲哚美辛,苯那唑,甲氨蝶呤,环磷酰胺,氮芥,地塞米松,泼尼松龙,塞来考昔,伐地考昔,尼美舒利,可的松和皮质类固醇的炎症剂。
    • 9. 发明授权
    • 단백질 분해효소 검출 및 생체 내 영상화를 위한 금속 나노입자 및 그것의 용도
    • 一种基于金属纳米材料的蛋白成像探针及其应用
    • KR100857770B1
    • 2008-09-09
    • KR1020070035722
    • 2007-04-11
    • 한국과학기술연구원
    • 권익찬최귀원김광명안철희윤인찬이슬기박경순
    • C01G23/04C04B35/465B82B3/00
    • A61K49/0056A61K49/0032A61K49/0065A61K49/0093C12Q1/37
    • A gold nanoparticle of peptide and cyanine phosphor is provided to selectively in vivo detect and image protease, and quantitatively analyze the expression amount of protease, so that the gold nanoparticle is useful as a sensor for realtime cell imaging and early diagnosis of non-hygroscopic disease by being selectively absorbed into the cell or tissue. A gold nanoparticle for imaging MMP(matrix metalloprotease) expressed in the cell or tissue contains a peptide with -SH end group which is specifically degraded by MMP coupled with a cyanine phosphor, wherein the peptide with -SH end group is Gly-Pro-Leu-Gly-Leu-Phe-Ala-Arg-Cys; and the MMP is MMP-1, MMP-2, MMP-3, MMP-7, MMP-8, MMP-9, MMP-10, MMP-11, MMP-12, MMP-13, MMP-14, MMP-15, MMP-16, MMP-17, MMP-18, MMP-19, MMP-20, MMP-21, MMP-22, MMP-23, MMP-24, MMP-25, MMP-26, MMP-27 or MMP-28.
    • 提供肽和花青荧光体的金纳米颗粒以选择性体内检测和图像蛋白酶,并定量分析蛋白酶的表达量,使得金纳米颗粒可用作实时细胞成像和非吸湿性疾病早期诊断的传感器 通过选择性地吸收到细胞或组织中。 用于成像在细胞或组织中表达的MMP(基质金属蛋白酶)的金纳米颗粒含有具有-SH端基的肽,其通过与花青磷光体偶联的MMP特异性降解,其中具有-SH端基的肽是Gly-Pro-Leu -Gly-LEU-PHE-ALA-精氨酸 - 半胱氨酸; MMP-1,MMP-2,MMP-3,MMP-7,MMP-8,MMP-9,MMP-10,MMP-11,MMP-12,MMP-13, 15,MMP-16,MMP-17,MMP-18,MMP-19,MMP-20,MMP-21,MMP-22,MMP-23,MMP-24,MMP-25,MMP-26, MMP-28。