Abstract:
본 발명은 신장세포 특이적인 펩타이드 및 폴리에스테르아민 중합체를 포함하는 유전자 전달체에 관한 것이다. 본 발명에 따른 비바이러스성 유전자 전달체인 신장세포 특이적 펩타이드-폴리에스테르아민은, 현저히 낮은 세포독성 및 높은 트랜스펙션 효율을 제공할 수 있어 효과적인 유전자 전달체로서 사용할 수 있다. 이러한 상기 유전자 전달체를 이용하는 경우, 치료 유전자인 간세포 성장인자 (Hepatocyte Growth Factor; HGF) 유전자를 목적하는 부위에 효율적으로 전달할 수 있고, 신장에서의 높은 발현효율을 나타내어 신장섬유화 (fibrosis)를 억제할 수 있을 뿐만 아니라, 크레아티닌 농도와 요소농도를 크게 낮출 수 있기 때문에 신장섬유증 예방 및 치료에 효율적으로 활용될 수 있다.
Abstract:
PURPOSE: A gene delivery system containing renal cell-specific peptides and polyester amine polymers is provided to effectively deliver HGF gene to a target site and to suppress fibrosis. CONSTITUTION: A gene delivery system contains renal cell-specific peptides and polyester amine polymers. The renal cell-specific peptide is HOOC-ELRGDRAHW-NH_2. The polyester amine polymer is a copolymer of polyethylenimine and glycerol dimethacrylate. The delivery system is prepared by amide bond of a carboxyl group of rental cell-specific peptides and an amine group of polyester amine polymers. A HGF gene contains a base of sequence number 1. A composition for preventing or treating rental fibrosis contains a gene delivery complex.
Abstract:
본 발명은 스페르민(spermine) 공중합체 및 이를 핵산 전달체로 이용하는 유전자 치료에 관한 것이다. 본 발명의 스페르민 공중합체는 2개 이상의 히드록실기를 포함하는 링커 화합물을 이용하여 스페르민(spermine, SPE)을 공중합시킴으로써, DNA 등 치료 핵산에 높은 결합능을 나타내고, 핵산분해효소로부터 DNA를 효과적으로 보호하며, 핵산 전달체로 사용하기에 적합한 물리화학적 특성을 나타낼 뿐만 아니라, 링커의 히드록실기가 다른 혈액 단백질의 접근 및 그로 인한 응집을 방지하여 핵산 전달체의 혈액 내 안정성을 향상시킴으로써, 시험관 내 및 생체 내에서 매우 낮은 세포독성을 나타내고, 형질도입 효율이 매우 높아 유전자 치료를 위한 핵산 전달체로서 유용하게 사용될 수 있다.
Abstract:
The present invention relates to an anticancer pharmaceutical composition comprising an Akt1 inhibitor and a hydrophobic anticancer agent as an active ingredient. The combinational administration of the Akt1 inhibitor and the hydrophobic anticancer agent according to the present invention can inhibit Akt1 signaling and cancer cell growth more effectively and promote apoptosis of cancer cells as compared with sole administration thereof, thereby effectively treating cancers.
Abstract:
PURPOSE: A liquid particle generating apparatus is provided to optimally maintain the concentration and the temperature of a solution containing particles. CONSTITUTION: A liquid particle generating apparatus includes a container(10), an outlet(15), an air inlet(20), a connecting pipe(30), and an agitating unit(50). The connecting pipe includes an air introducing hole(21), a solution discharging hole(32), and a solution introducing hole(31). The solution discharging hole is in connection with the air inlet. The solution introducing hole is in connection with the container. The agitating unit agitates a liquid solution in the container. The liquid solution is introduced into the air inlet through the connecting pipe based on the pressure change of air introduced into the air inlet such that the air contains liquid particles. The air containing the liquid particles are discharged through the outlet.
Abstract:
PURPOSE: A chitosan-spermine graft copolymer is provided to have excellent adhesion to DNA, to effectively protect DNA from nuclease, and to form a composite of uniform particle size suitable for using as a gene vector. CONSTITUTION: A chitosan-spermine graft copolymer is in chemical formula 1. In chemical formula 1, the chitosan has molecular weight of 2-500 kDa, the chitosan and the spermine has molar ratio of 1:2-1:10. The copolymer has average particle size of 50-200 nm. A manufacturing method of the chitosan-spermine graft copolymer comprises: a step of manufacturing periodate-oxidized chitosan by treating the chitosan with periodate; and a step of reacting the periodate-oxidized chitosan with spermine.
Abstract:
본 발명은 공액화 리놀레산 폴록사머를 담체로 하여 파클리탁셀을 적재시킨 신규한 항종양 활성 국소 약물 전달 시스템으로서 파클리탁셀 적재 공액화 리놀레산 폴록사머 하이드로겔에 관한 것으로, 본 발명에 따른 PTX 적재 CLA-결합 폴록사머 하이드로겔 약물 전달 시스템은 CLA-결합 폴록사머 하이드로겔을 PTX의 국소 전달용 시스템으로 사용함으로써 in vtro에서 PTX의 세포독성을 증가시키고, in vivo에서 종양 부피를 유의적으로 감소시켜 상승적인 항종양 활성을 나타내는 효과가 있다. 공액화 리놀레산, 파클리탁셀, 폴록사머, 하이드로겔
Abstract:
A gene therapy agent for preventing and treating lung cancer is provided to obtain an effective invasive model of gene delivery through the delivery of CTMP mediated with Lentivirus by aerosol and to effectively suppress the control of Akt1 for preventing and treating the lung cancer and cell cycle. A gene therapy agent for preventing and treating lung cancer contacts lung tumor cells with an agent reducing the Akt1 activity and a genetic vector. The agent reducing the Akt1 activity is selected from the group consisting of lentivirus, antisense molecule, antagonist, ribozyme, inhibitor and peptide. CTMP(carboxyl terminal modulator protein) is used as the genetic vector. The contact comprises liposome, nanoliposome, ceramide - containing nanoliposome, proteoliposome, nanoparticulate, calcium phosphorus-silicate nanoparticulate, calcium phosphate nanoparticulate, silicon dioxide nanoparticulate, nanocrystalline nanoparticulate, semiconductor nanoparticulate, poly(D-arginine), nano dendrimer, virus and calcium phosphate nucleotide-mediated nucleotide deliver, electroporation, usage of microinjection and aerosol transmission.