KR101200176B1 - 풀루란 유도체?폴리에틸렌이민 접합체를 포함하는 생리활성 물질 전달체 및 이의 제조방법 - Google Patents
풀루란 유도체?폴리에틸렌이민 접합체를 포함하는 생리활성 물질 전달체 및 이의 제조방법 Download PDFInfo
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- KR101200176B1 KR101200176B1 KR1020100061907A KR20100061907A KR101200176B1 KR 101200176 B1 KR101200176 B1 KR 101200176B1 KR 1020100061907 A KR1020100061907 A KR 1020100061907A KR 20100061907 A KR20100061907 A KR 20100061907A KR 101200176 B1 KR101200176 B1 KR 101200176B1
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- pullulan
- polyethyleneimine
- derivative
- conjugate
- present
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Abstract
Description
도 2는 본 발명의 방법에 따라 합성된 풀루란유도체-폴리에틸렌이민 / pDNA 복합체의 크기를 측정한 결과이다.
도 3은 본 발명의 방법에 따라 합성된 풀루란유도체-폴리에틸렌이민 / pDNA 복합체의 표면전하를 측정한 결과이다.
도 4는 본 발명의 방법에 따라 합성된 풀루란유도체-폴리에틸렌이민과 플라스미드 유전자와의 복합체 형성을 확인하기 위한 다양한 전하비(N/P)에 따른 전기영동 사진이다.
도 5는 본 발명의 방법에 따라 합성된 풀루란유도체-폴리에틸렌이민의 세포독성 측정결과이다. 대조군은 분자량 25,000 의 폴리에틸렌이민이다.
도 6은 본 발명의 방법에 따라 합성된 풀루란유도체-폴리에틸렌이민의 시간 변화에 따른 세포독성 측정결과이다. 대조군은 분자량 25,000 의 폴리에틸렌이민이다.
도 7은 본 발명의 방법에 따라 합성된 풀루란유도체-폴리엔틸렌이민의 유전자 전달 효율이다. 대조군은 분자량 25,000의 폴리에틸렌이민과 분자량 1,800의 폴리에틸렌이민이다.
합성고분자 코드 | Pullulan Acetate ( wt %) | Polyethyleneimine ( wt %) |
PA-PEI 1 | 43.6 | 56.4 |
PA-PEI 2 | 50.6 | 49.4 |
PA-PEI 3 | 73.7 | 26.3 |
Claims (15)
- 풀루란 유도체와 폴리에틸렌이민이 결합된 양이온성 고분자 접합체를 포함하는 생리활성 물질 전달체로서, 상기 풀루란 유도체는 풀루란에 메칠기, 담즙산, 콜레스테롤 및 비이온성 폴리 아미노산으로 이루어진 군 중에서 선택되는 하나 이상의 물질을 도입한 것을 특징으로 하는 생리활성 물질 전달체.
- 제1항에 있어서,
상기 풀루란 유도체의 풀루란은 분자량이 5,000 Da ~ 1,000,000 Da인 것을 특징으로 하는 생리활성 물질 전달체. - 삭제
- 제1항에 있어서,
상기 풀루란 유도체는 풀루란에 피리딘 및 무수아세테이트를 첨가하여 수득한 풀루란아세테이트인 것을 특징으로 하는 생리활성 물질 전달체. - 제1항에 있어서,
상기 폴리에틸렌이민은 가지형이고, 분자량이 400Da ~ 10,000 Da의 무독성 단위체인 것을 특징으로 하는 생리활성 물질 전달체. - 제1항에 있어서,
상기 접합체는 풀루란유도체와 폴리에틸렌이민이 1 : 0.1 내지 1 : 10의 중량비로 결합된 것을 특징으로 하는 생리활성 물질 전달체. - 제1항에 있어서,
상기 풀루란유도체-폴리에틸렌이민 접합체의 크기는 10nm ~ 300nm인 것을 특징으로 하는 생리활성 물질 전달체. - 제1항에 있어서,
풀루란유도체-폴리에틸렌이민 접합체와 이온결합 및 소수성 결합을 통해 복합체를 형성할 수 있는 유전자를 더 포함하는 것을 특징으로 하는 생리활성 물질 전달체. - 풀루란을 아세틸화시켜 소수성 풀루란 유도체를 합성하는 단계;
상기 소수성 풀루란 유도체와 가교제를 중합시켜 중합체를 합성하는 단계; 및
상기 중합체를 폴리에틸렌이민과 중합시켜 양이온성 고분자 접합체를 합성하는 단계를 포함하는, 생리활성 물질 전달체의 제조방법. - 제9항에 있어서,
상기 접합체에 목적하는 유전자를 결합시킬 경우, 이온결합 및 소수성 결합을 통해 복합체를 형성시키는 단계를 추가로 포함하는 것을 특징으로 하는 생리활성 물질 전달체의 제조방법. - 제9항에 있어서,
상기 소수성 풀루란 유도체와 가교제를 중합하는 단계는 메틸렌클로라이드(Methylene Chloride), 디메틸 설폭사이드(Dimethyl sulfoxide) 또는 테트라하이드로푸란 (Tetrahydrofuran)에 용해된 소수성 풀루란 유도체 용액에 가교제를 첨가한 다음, 디에틸에테르(Diethyl Ether)에 침전시키거나 투석을 통해 수득하는 것을 특징으로 하는 방법. - 제11항에 있어서,
상기 가교제는 N,N'-carbonyldiimidazole(CDI), Dicyclohexyl carbodiimide (DCC) 및 N-(2-dimethylaminopropyl)-N'-ethylcarbodidimide(EDC)로 이루어진 군 중에서 선택된 하나를 사용하여 수행하는 것을 특징으로 하는 방법. - 제9항에 있어서,
상기 생리활성 물질은 체내에서 약리 활성을 나타내는 DNA, RNA, 안티센스 핵산, 리보좀, 폴리뉴클레오타이드, 올리고뉴클레오타이드, 항바이러스제, 항생제, 항진균제, 항대사제 및 항암제로 이루어진 군 중에서 선택되는 것을 특징으로 하는 방법. - 제1항, 제2항 및 제4항 내지 제8항 중 어느 한 항에 따른 생리활성 물질 전달체를 유효성분으로 포함하는 유전자 치료제.
- 제14항에 있어서,
상기 유전자를 이용한 치료 대상이 암인 것을 특징으로 하는 유전자 치료제.
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