KR20100132486A - 약제 용출형 카테터 및 그 제조방법 - Google Patents
약제 용출형 카테터 및 그 제조방법 Download PDFInfo
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- KR20100132486A KR20100132486A KR1020107017482A KR20107017482A KR20100132486A KR 20100132486 A KR20100132486 A KR 20100132486A KR 1020107017482 A KR1020107017482 A KR 1020107017482A KR 20107017482 A KR20107017482 A KR 20107017482A KR 20100132486 A KR20100132486 A KR 20100132486A
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Abstract
Description
도 2는 본 발명의 약제 용출형 카테터에 이용되는, 입자 표면이 양전하 수식되어 생리활성물질이 입자 내부에 봉입되고 입자 표면에도 담지된 나노스피어의 구조를 나타낸 모식도;
도 3은 본 발명의 약제 용출형 카테터에 이용되는 벌룬 카테터 본체의 일례를 나타낸 측면도;
도 4는 카테터 본체의 벌룬부에 나노입자층을 형성한 상태를 나타낸 단면확대도;
도 5는 나노입자층이 형성된 벌룬부에 생분해성 고분자층을 형성한 상태를 나타낸 단면확대도;
도 6A는 오목부가 형성된 벌룬부에 음대전성 수지층 및 나노입자층을 적층한 상태를 나타낸 단면확대도;
도 6B는 벌룬부를 팽창시킨 상태를 나타낸 단면확대도;
도 7A는 실시예 5에 있어서의 벌룬부의 절개 방법을 나타낸 도면;
도 7B는 실시예 5에 있어서의 벌룬부의 관찰 개소를 나타낸 도면;
도 8A는 생리식염수에 침지하기 전의 벌룬부(도 7B의 L)의 형광 현미경 사진;
도 8B는 생리식염수에 침지하기 전의 벌룬부(도 7B의 C)의 형광 현미경 사진;
도 8C는 생리식염수에 침지하기 전의 벌룬부(도 7B의 R)의 형광 현미경 사진;
도 9A는 생리식염수에 60분간 침지한 후의 벌룬부(도 7B의 L)의 형광 현미경 사진;
도 9B는 생리식염수에 60분간 침지한 후의 벌룬부(도 7B의 C)의 형광 현미경 사진;
도 9C는 생리식염수에 60분간 침지한 후의 벌룬부(도 7B의 R)의 형광 현미경 사진;
도 10A는 생리식염수에 60분간 침지하고, 추가로 아세토나이트릴에 10분간 침지한 후의 벌룬부(도 7B의 L)의 형광 현미경 사진;
도 10B는 생리식염수에 60분간 침지하고, 추가로 아세토나이트릴에 10분간 침지한 후의 벌룬부(도 7B의 C)의 형광 현미경 사진;
도 10C는 생리식염수에 60분간 침지하고, 추가로 아세토나이트릴에 10분간 침지한 후의 벌룬부(도 7B의 R)의 형광 현미경 사진;
도 11A는 벌룬부(도 7B의 L)를 60분간 침지한 생리식염수를 여과한 멤브레인 필터의 형광 현미경 사진;
도 11B는 벌룬부(도 7B의 C)를 60분간 침지한 생리식염수를 여과한 멤브레인 필터의 형광 현미경 사진;
도 11C는 벌룬부(도 7B의 R)를 60분간 침지한 생리식염수를 여과한 멤브레인 필터의 형광 현미경 사진;
도 12A는 실시예 6에 이용한 표면에 오목부가 형성된 벌룬부의 측면도;
도 12B는 도 12A에 있어서의 벌룬부의 A-A' 단면도;
도 12C는 도 12A에 있어서의 벌룬부의 B-B' 단면도;
도 13A는 실시예 6에 있어서의 벌룬부의 가압 전의 형광 현미경 사진;
도 13B는 실시예 6에 있어서의 벌룬부의 10atm 가압 후의 형광 현미경 사진;
도 13C는 실시예 6에 있어서의 벌룬부의 20atm 가압 후의 형광 현미경 사진;
도 14는 실시예 7에 있어서의 혈관 내피를 손상시키지 않았던 토끼의 정상 복부 대동맥의 단면을 나타낸 현미경 사진(촬영 배율: 40배);
도 15는 실시예 7에 있어서의 NFκB 디코이 비함유 PLGA 나노스피어로 코팅한 PTA 벌룬 카테터로 혈관 내피를 찰과시킨, 토끼의 복부 대동맥의 단면[NFκB 디코이(-)]을 나타낸 현미경 사진(촬영 배율: 40배);
도 16은 실시예 7에 있어서의 NFκB 디코이 함유 PLGA 나노스피어로 코팅한 PTA 벌룬 카테터로 혈관 내피를 찰과시킨, 토끼의 복부 대동맥의 단면[NFκB 디코이(+)]을 나타낸 현미경 사진(촬영 배율: 40배);
도 17A는 실시예 7에 있어서의 NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 복부 대동맥의 내막 면적(㎟)을 비교한 그래프;
도 17B는 실시예 7에 있어서의 NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 복부 대동맥의 중간막 면적(㎟)을 비교한 그래프;
도 17C는 실시예 7에 있어서의 NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 복부 대동맥의 내막/중간막의 면적비(I/M)를 비교한 그래프;
도 18A는 실시예 8에 있어서의 대조군, NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 경동맥의 내막 면적(㎟)을 비교한 그래프;
도 18B는 실시예 8에 있어서의 대조군, NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 경동맥 중간막 면적(㎟)을 비교한 그래프;
도 18C는 실시예 8에 있어서의 대조군, NFκB 디코이(+)군 및 NFκB 디코이(-)군에서, 경동맥의 내막/중간막의 면적비(I/M)를 비교한 그래프;
도 19는 종래의 나노입자의 구조를 나타낸 모식도.
평균입자직경 [㎚] |
제타 전위 [mV] |
NFκB 디코이 함유율 [%](이론치)※ |
|
실시예 1 | 530 | +0.75 | 4.01(4.35+0) |
실시예 2 | 254 | +7.99 | 2.31(0.58+1.73) |
※함유율의 이론치(%) = PLGA 나노스피어에 대한 NFκB 디코이의 주입량×100을 (내포 + 표면 담지)로 나누어서 나타내었다. |
시험관 번호 | 1 | 2 | 3 | 4 | 5 |
침지 시간(분) | 0.5 | 1.5 | 8 | 20 | 30 |
누적 침지 시간(분) | 0.5 | 2 | 10 | 30 | 60 |
NFκB 디코이 누적방출량[㎎] | ||||||
검체 1 | 검체 2 | 검체 3 | 검체 4 | 검체 5 | ||
누적 침지 시간 [분] |
0.5 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
2 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
10 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
30 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
60 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
NFκB 디코이 총 부착량[㎎] | 0.148 | 0.156 | 0.172 | 0.192 | 0.152 | |
2분 후의 용출률[%] | 0 | 0 | 0 | 0 | 0 |
NFκB 디코이 누적방출량[㎎] | ||||||
검체 1 | 검체 2 | 검체 3 | 검체 4 | 검체 5 | ||
누적 침지 시간 [분] |
0.5 | 0.004 | 0.000 | 0.000 | 0.000 | 0.008 |
2 | 0.004 | 0.000 | 0.000 | 0.000 | 0.008 | |
10 | 0.004 | 0.000 | 0.000 | 0.016 | 0.021 | |
30 | 0.004 | 0.000 | 0.000 | 0.016 | 0.021 | |
60 | 0.004 | 0.000 | 0.000 | 0.016 | 0.021 | |
NFκB 디코이 총 부착량[㎎] | 0.134 | 0.178 | 0.109 | 0.148 | 0.182 | |
2분 후의 용출률[%] | 3.0 | 0 | 0 | 0 | 4.4 |
Claims (26)
- 생리활성물질이 봉입되고, 또한 표면이 양전하 수식된 생체적합성 나노입자를, 음전하 수식된 확장가능부분의 표면에 코팅한 확장가능한 약제 용출형 카테터.
- 제1항에 있어서, 상기 확장가능부분은 폴리카복실산 혹은 폴리카복실산 유도체에 의해 음전하 수식되어 있는 것인 약제 용출형 카테터.
- 제2항에 있어서, 상기 폴리카복실산은 아크릴산, 메타크릴산, 말레산, 푸마르산, 아스파르트산 혹은 글루탐산의 폴리머, 전분, 셀룰로스 혹은 폴리비닐알코올의 카복시메틸 유도체, 알긴산 및 펙틴으로부터 선택된 1종 이상인 것인 약제 용출형 카테터.
- 제2항에 있어서, 상기 폴리카복실산 유도체는 아크릴산, 메타크릴산, 말레산의 폴리머의 산무수물 유도체 혹은 에스터 유도체인 것인 약제 용출형 카테터.
- 제4항에 있어서, 상기 폴리카복실산 유도체는 무수 말레산의 공중합체인 것인 약제 용출형 카테터.
- 제5항에 있어서, 상기 무수 말레산의 공중합체는 무수 말레산-메틸비닐에터 공중합체, 무수 말레산-스타이렌 공중합체 및 무수 말레산-에틸렌 공중합체로부터 선택된 1종 이상인 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 생체적합성 나노입자는 표면에 양이온(cation)성 고분자를 부착시킴으로써 양전하 수식되어 있는 것인 약제 용출형 카테터.
- 제7항에 있어서, 상기 양이온성 고분자는 키토산인 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 생체적합성 나노입자는 폴리락트산, 폴리글라이콜산, 락트산·글라이콜산 공중합체 혹은 락트산·아스파르트산 공중합체 중 어느 하나로 구성된 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 생리활성물질은 핵산화합물인 것인 약제 용출형 카테터.
- 제10항에 있어서, 상기 핵산화합물은 플라스미드 DNA, 유전자, 디코이, siRNA, 올리고뉴클레오타이드, 안티센스 올리고뉴클레오타이드, 리보자임 및 압타머(aptamer)로부터 선택된 1종 이상인 것인 약제 용출형 카테터.
- 제11항에 있어서, 상기 핵산화합물은 NFκB 디코이 올리고뉴클레오타이드인 것인 약제 용출형 카테터.
- 제12항에 있어서, 상기 NFκB 디코이 올리고뉴클레오타이드는 서열 번호 1, 서열 번호 2 또는 서열 번호 3으로부터 선택된 1종인 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 혈관내 카테터인 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 확장가능부분으로서 벌룬을 가진 벌룬 카테터인 것인 약제 용출형 카테터.
- 제15항에 있어서, 상기 벌룬의 표면에 오목부가 형성되어 있는 것인 약제 용출형 카테터.
- 제16항에 있어서, 상기 오목부는 원형 또는 타원형인 것인 약제 용출형 카테터.
- 제1항 내지 제6항 중 어느 한 항에 기재된 약제 용출형 카테터를 이용하는, 혈관 협착 또는 투석용 션트내 협착의 치료방법.
- 적어도 양이온성 고분자를 용해시킨 수용액에, 적어도 생리활성물질의 용액과 생체적합성 고분자를 유기용매에 용해시킨 용액의 혼합액을 첨가하여, 상기 생리활성물질이 상기 생체적합성 고분자 속에 봉입되고, 또한 입자 표면이 양전하 수식된 생체적합성 나노입자의 현탁액을 생성하는 나노입자 형성공정;
카테터 본체의 확장가능부분을 음전하 수식하는 음전하 수식공정;
상기 생체적합성 나노입자를 음전하 수식된 상기 확장가능부분에 부착시켜서 나노입자층을 형성하는 나노입자 부착공정; 및
상기 나노입자층을 건조시키는 건조공정을 포함하는, 약제 용출형 카테터의 제조방법. - 제19항에 있어서, 상기 음전하 수식 공정은, 상기 확장가능부분의 폴리카복실산 혹은 폴리카복실산 유도체의 용액 중에의 침지에 의해 행해지는 것인, 약제 용출형 카테터의 제조방법.
- 제19항에 있어서, 상기 생체적합성 나노입자의 현탁액에 추가로 음이온성 생리활성물질을 첨가하는 것인, 약제 용출형 카테터의 제조방법.
- 제19항에 있어서, 상기 나노입자 부착 공정을 복수회 반복함으로써, 상기 확장가능부분에 형성된 상기 나노입자층 위에 추가로 나노입자층을 적층하는 것인, 약제 용출형 카테터의 제조방법.
- 제22항에 있어서, 상기 나노입자 부착 공정을 복수회 반복함으로써, 다른 생리활성물질이 봉입된 생체적합성 나노입자로 이루어진 상기 나노입자층을 적층 형상 또는 모자이크 형상으로 형성하는 것인, 약제 용출형 카테터의 제조방법.
- 제19항 내지 제23항 중 어느 한 항에 있어서, 상기 나노입자층에 생분해성 고분자의 용액을 함침시키는 함침공정을 포함하는, 약제 용출형 카테터의 제조방법.
- 제24항에 있어서, 상기 함침공정에 있어서, 상기 생분해성 고분자의 용액 중에 추가로 생리활성물질을 첨가하는 것인, 약제 용출형 카테터의 제조방법.
- 제24항에 있어서, 상기 함침공정에 있어서 나노입자층에 함침시키는 생분해성 고분자는, 상기 생체적합성 나노입자를 형성하는 생체적합성 고분자보다 생체 내에서의 분해 속도가 빠른 것인, 약제 용출형 카테터의 제조방법.
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EP (1) | EP2251050A4 (ko) |
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2009
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- 2009-03-12 JP JP2010502866A patent/JP5591103B2/ja active Active
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- 2009-03-12 EP EP20090720078 patent/EP2251050A4/en not_active Withdrawn
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- 2009-03-12 US US12/921,443 patent/US9186439B2/en not_active Expired - Fee Related
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WO2009113605A1 (ja) | 2009-09-17 |
US20110022027A1 (en) | 2011-01-27 |
EP2251050A1 (en) | 2010-11-17 |
CN102036696A (zh) | 2011-04-27 |
JPWO2009113605A1 (ja) | 2011-07-21 |
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