Abstract:
본 발명은 Akt1 억제제 및 소수성 항암제를 유효성분으로 포함하는 항암용 약학적 조성물에 관한 것이다. 본 발명에 따른, Akt1 억제제 및 소수성 항암제의 병용 투여는 단독 투여와 비교하여, Akt1 신호전달 및 암 세포의 성장을 더욱 효과적으로 저해하고 암세포의 아폽토시스를 촉진함으로써 암을 효과적으로 치료할 수 있다.
Abstract:
본 발명은 폴리에틸렌옥사이드 (poly(ethylene oxide), PEO)와 폴리아스파르트아마이드 (polyaspartamide)로 구성되는, N-아세틸글루코사마이드가 결합된 PASPG (P[Asp(Sper)-b-PEO-GlcNAc]) 공중합체, 상기 PASPG 공중합체를 포함하는 유전자 전달체 및 섬유증의 예방 또는 치료용 조성물에 관한 것이다. 본 발명에 따른 PASPG 공중합체는 DNA에 높은 결합능을 나타내어 PASPG/DNA 복합체를 형성하며, 상기 PASPG/DNA 복합체는 200 nm이하의 작은 크기로 내포 작용을 통한 유전자 전달이 가능하고, 세포 독성이 매우 낮으며, 비멘틴-발현 세포에서 우수한 트렌스펙션 효율을 가지고 있어, 유전자 전달체 또는 섬유증의 예방 또는 치료용 조성물로 유용하게 이용될 수 있다.
Abstract:
The present invention relates to a biodegradable polymannitol-based osmotically gene transporter (PMT) and gene therapy using the same. The biodegradable PMT of the present invention includes an osmotic mannitol skeleton, increases membrane permeability by giving osmotic pressure to a cell membrane and shows drastically enhanced transformation efficiency by promoting intracellular intake course. In addition, the PMT of the present invention shows high combining power with DNA, effectively protects the DNA from nuclease, shows chemicophysical characteristics suitable for using as the gene transporter with increased duration in cytoplasmic, and can be useful as the gene transporter for gene therapy by expressing low cytotoxicity in vitro and in vivo.
Abstract:
The present invention relates to CLA-containing functional chicken meat using PCLA addictive feed for chickens and a production method, which can produce low fat chicken meat containing PCLA by feeding 3-6 weeks-old chickens with feed which PCLA, which is 1.71-5.1% of the whole feed weight, is added. [Reference numerals] (AA) Total feeding period(42 days); (BB) Initial period(7 days); (CCF) Former period(14 days); (DD) Later period(11 days); (EE) Later period extension(10 days); (FF) Start of an experiment; (GG) Start for feeding added PCLA; (HH) First sampling; (II) 6 weeks; (JJ) End a second sampling experiment
Abstract:
The present invention relates to a N-acetylglucosaminide-combined P[Asp(Sper)-b-PEO-GlcNAc] (PASPG) copolymer comprising polyethylene oxide (PEO) and polyaspartamide, a gene transporter including the PASPG copolymer, and a composition for preventing or treating fibrosis. The PASPG copolymer according to the present invention displays a remarkable combining power to the DNA to form a PASPG/DNA compound, wherein the PASPG/DNA compound is able to transport a gene through an endocytosis with a size equal to or less than 200 nm, and has a very low cytotoxicity and excellent transfection efficiency, thereby can be effectively be used as a gene transporter or a composition for preventing or treating fibrosis.
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 microcapsule for oral administration and a method for manufacturing the same are provided to improve mucosal adhesion and durability. CONSTITUTION: A microcapsule for oral administration contains 40-85 wt% of alginate, 5-20 wt% of poly-L-lysine, 5-20 wt% of alginate with a thiol group, and 5-20 wt% of physiologically active substance. The alginate is denoted by chemical formula 1. A method for preparing the alginate with the thiol group comprises: a step of adding L-cysteine salt to a reaction mixture; a step of adjusting pH of reacted mixture; and a step of performing dialysis of the reaction mixture. The average particle diameter of the microcapsule is 5-5000 um. A method for preparing the microcapsule comprises: a step of suspending the physiologically active substance in saline solution and adding alginate to the suspension; a step of reacting the reaction mixture in a calcium salt solution; a step of reacting the reaction mixture in a poly-L-lysine solution; and a step of coating the reaction mixture with the alginate solution containing thiol groups.
Abstract:
PURPOSE: A chitosan nanoaprticle immobilized with M cell targeting peptide and a carrier for transferring oral vaccine containing the same are provided to use as a novel carrier for transferring oral vaccine. CONSTITUTION: A method for chitosan nanoparticle immobilized with M cell targeting peptide comprises: a step of conjugating M cell targeting peptide to water soluble chitosan to obtain M cell targeting peptide-water soluble chitosan; a step of adding tripolyphosphate(TPP) solution to the peptide-water soluble chitosan solution containing Tween 80; a step of performing sonication; and a step of centrifuging solution. The M cell targeting peptide has CKSYHPLSC sequence of sequence number 1.