Abstract:
본발명은심근세포유도용복합체및 이를이용하여체세포로부터심근세포를유도하는방법에관한것이다. 본발명에따른심근세포유도용복합체를체세포로도입하면, 줄기세포중간단계를거치지않고체세포로부터심근세포를직접유도할수 있으며, 바이러스벡터를이용하지않으므로바이러스감염에의한유전자변이등의우려가없어체내안전성을확보할수 있다.
Abstract:
The present invention relates to a drug delivery system for curing ocular disease and a method for manufacturing the same and, more particularly, to a drug delivery system for curing ocular disease and a method for manufacturing the same, which includes a complex comprising: thiolated glycol chitosan; a macromolecule transduction domain combined to the thiolated glycol chitosan; and a drug for curing ocular disease which is combined to the thiolated glycol chitosan. According to the present invention, the drug delivery system can maximize curing effect by being able to deliver a drug, which acts on only the surface of a target cell previously, into the inside of the cell because it can deliver the drug between cells, and can deliver the drug to a disease part specifically as being stabler in a body.
Abstract:
본 발명은 단백질 분해 효소 활성의 정량적 측정용 시험관내 키트 및 그 제조방법에 관한 것이다. 보다 상세하게는, 형광체 및 소광체가 결합되고, 단백질 분해효소에 의하여 특이적으로 분해되는 펩타이드 기질이 고분자에 결합된 복합체를 포함하는 시험관내 단백질 분해효소 활성의 정량적 측정용 키트에 관한 것이다. 본 발명에 따른 복합체는 소광체의 형광물질에 대한 높은 소광 능력으로 형광이 발광하지 않은 상태로 있다가 특정 단백질 분해효소에 의하여 펩타이드 기질이 분해가 되어야만 강한 형광을 특이적으로 발광함으로써, 특히 단백질 분해효소 과다 발현을 억제하는 억제제와 같은 신약을 스크리닝하는 방법, 암, 골 관절염, 류마티스 관절염, 치매 등 자가면역질환 등의 다양한 질병 및 난치병의 조기 진단에 유용하게 사용될 수 있다.
Abstract:
The present invention relates to a gene delivery carrier for effectively delivering a gene to cells without cytotoxicity and a method for preparing the same and, more specifically, to a PCR-based gene delivery carrier which comprises: a shell composed of neutral liposomes; and template DNA and PCR components including polymerase, dNTPs, and primers for amplification of the template DNA by PCR within an inner space defined by the shell. According to the present invention, the gene delivery carrier with improved gene loading efficiency without cytotoxicity and the method for preparing the same are provided.
Abstract:
The present invention relates to an in vitro kit for quantitatively detecting protease activity and a method for manufacturing the same and more specifically, to an in vitro kit comprising a complex, in which a fluorescent substance and a quencher are combined and a peptide substrate specifically degraded by the protease is combined with a polymer nanoparticle, for quantitatively detecting protease activity. Since the complex according to the present invention has a high quenching effect against the fluorescent material of a quencher, the complex specifically emits strong fluorescence if the peptide substrate is degraded by a certain protease, while the complex emits no fluorescence if not, thereby being able to be useful for screening of novel drugs such as an inhibitor suppressing the overexpression of the protease and early diagnosis with various diseases like autoimmune diseases such as cancer, ostarthritis, rheumatoid arthritis, Alzheimer's disease, etc. and incurable disease. [Reference numerals] (AA) In case of using linear polymer; (BB) In case of using nanoparticles; (CC) Extinction state (-) enzyme; (DD) Restoration state (+) enzyme 5 min; (EE) Restoration state (+) enzyme 60 min; (FF) Difference in contrast; (GG) 170 fold; (HH) 81 fold
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.
Abstract:
PURPOSE: A method for in vivo targeting of nanoparticles by bioorthogonal copper-free click chemistry is provided to control the in vivo distribution of nanoparticles and to remarkably increase the accumulation in vivo of the nanoparticle in a target part. CONSTITUTION: A method for in vivo targeting of nanoparticles comprises a step of putting in the precursor which can control metabolism in vivo and has a first bioorthogonal functional group; and a step of putting a nanoparticle which is attached with a second bioorthogonal functional group bioorthogonally reactable with the first bioorthogonal functional group. The metabolism control is a sugar chain control. The precursor is a compound selected from chemical formulas 1 to 3.
Abstract:
본 발명은 글리콜 키토산과 헤파린으로 표면이 개질된 약물전달용 생체적합성 고분자 전달체 및 그의 용도에 관한 것이다. 글리콜 키토산과 헤파린으로 표면이 개질된 본 발명의 약물전달용 생체적합성 고분자 전달체는, 제조 과정 중에 유기 용매가 사용되지 않으므로 생체 적합성이 우수하며, 글리콜 키토산과 헤파린으로 표면이 개질되어 혈류 내 체류성 및 순환성이 증가된다. 따라서, 상기 약물전달용 생체적합성 고분자 전달체는 생체 내 암조직 등의 표적 부위로 약물을 효율적으로 전달할 수 있으므로, 각종 질병의 치료를 위하여 광범위하게 사용할 수 있다.