Abstract:
본 발명은 피브린 표적 펩타이드 서열이 결합된 글라이콜 키토산-금 나노입자를 포함하는 혈전 탐지용 CT 조영제에 관한 것이다. 본 발명에 따른 혈전 탐지용 CT 조영제는 심뇌혈관 혈전증에서 혈전의 크기 및 위치에 관한 CT 영상 정보를 신속, 반복적으로 획득할 수 있게 하고, 뇌혈전의 영상 모니터링도 가능하게 한다.
Abstract:
PURPOSE: A nanosensor containing glycol chitosan-coated gold nanoparticles, peptides, and fluorescent substances is provided to diagnose certain disease such as cancer. CONSTITUTION: A nanosensor for detecting protease contains glycol chitosan-coated gold nanoparticles, peptides, and fluorescent substances. The peptide has 9-15 amino acid containing a protease cleavage site. One end and the other end of the peptide are conjugated with fluorescent substances and glycol chitosan of gold nanoparticles, respectively. The protease includes matrix metalloproteinases(MMP), caspase , thrombine, or proteosome. The peptide has 9-15 amino acids including Pro-Leu-Gly-Val-Arg (SEQ ID NO: 1), Gly-Asp-Glu-Val-Asp-Ala-Pro(SEQ ID NO: 2), Phe-Pip-Arg-Ser(Pip=pipecolic acid)(SEQ ID NO: 3), Gly-Gly-Arg-Arg-Gly-Gly(SEQ ID NO: 4), Arg, or Lys.
Abstract translation:目的:提供含有乙二醇壳聚糖包被的金纳米颗粒,肽和荧光物质的纳米传感器来诊断某些疾病如癌症。 构成:用于检测蛋白酶的纳米传感器含有乙二醇壳聚糖包被的金纳米颗粒,肽和荧光物质。 该肽具有含有蛋白酶切割位点的9-15个氨基酸。 肽的一端和另一端分别与金纳米颗粒的荧光物质和乙二醇壳聚糖共轭。 蛋白酶包括基质金属蛋白酶(MMP),半胱天冬酶,血栓素或蛋白体。 肽具有9-15个氨基酸,包括Pro-Leu-Gly-Val-Arg(SEQ ID NO:1),Gly-Asp-Glu-Val-Asp-Ala-Pro(SEQ ID NO:2),Phe-Pip -Arg-Ser(Pip =哌可酸)(SEQ ID NO:3),Gly-Gly-Arg-Arg-Gly-Gly(SEQ ID NO:4),Arg或Lys。
Abstract:
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.
Abstract:
The present invention relates to a CT contrast agent for detecting blood clot containing a fibrin target peptide sequence conjugated glycol chitosan-gold nanoparticle. The a CT contrast agent for detecting blood clot enables users to rapidly and repeatedly obtain CT image information of the size and the location of the blood clot in cardio-cerebrovascular thrombosis, and to monitor images of cerebral thrombosis.