KR102352489B1 - 소수성 개질된 글리콜 키토산 나노입자 및 이를 이용한 신장 표적화 약물 전달체 - Google Patents
소수성 개질된 글리콜 키토산 나노입자 및 이를 이용한 신장 표적화 약물 전달체 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 글리콜 키토산 나노입자의 자기조립을 통한 HGC-TAC 나노마이셀 형성 과정의 모식도를 나타낸다.
도 3은 본 발명의 일 실시예에 따른 글리콜 키토산 나노입자에 대한 1H-NMR 스펙트럼(a); 임계 마이셀 농도(CMC) 그래프(b); FE-TEM 이미지(c); 및 TAC의 방출 특성(d)을 나타낸다.
도 4는 발명의 일 실시예에 따른 글리콜 키토산 나노입자(HGC), TAC-담지 글리콜 키토산 나노입자(HGC-TAC) 및 TAC 함유 배지에서의 세포 생존능(a, b; value = mean ± SD. n=3) 및 시간에 따른 글리콜 키토산 나노입자의 세포 흡수를 확인할 수 있는 CLSM 이미지(c)를 나타낸다(scale bar= 50 μm).
도 5는 HK-2 세포주에서 본 발명의 일 실시예에 따른 형광염료(F675) 접합된 HGC-TAC 나노마이셀의 세포내 흡수 억제 양상을 나타낸다(scale bar = 100 μm).
도 6은 본 발명의 일 실시예에 따른 형광염료(F675) 접합된 HGC-TAC 나노마이셀 주사 후 시간 경과에 따른 각 기관에서의 형광 이미지(a) 및 형광 강도(b)를 나타낸다 (value = mean ± SD, n=3, 이원 변량 분석(Two-way ANOVA)을 사용하여 수행된 통계적 유의성 : **p < 0.01; ***p<0.001).
도 7은 신장에서의 본 발명의 일 실시예에 따른 나노마이셀의 주사 후 사구체 및 근위 세뇨관 영역에서의 형광 이미지(a) 및 대조군(b)을 나타내며(상단 행은 4X 배율, scale bar = 1,000 μm; 하단 행은 40X 배율, scale bar = 100 μm), 신장 조직의 면역화학염색 이미지를 나타낸다((c): AQP 1 - 녹색, HGC-TAC F675 나노마이셀 - 적색, 핵염색 DAPI - 청색, scale bar = 100μm; 포도신 - 녹색, HGC-TAC F675 나노마이셀 - 적색, 핵염색 DAPI - 청색, scale bar = 200μm).
도 8은 본 발명의 일 실시예에 따른 나노마이셀의 주사 후 혈장에서의 TAC 농도 프로파일(a) 및 신장에서의 TAC 농도(% injection dose/gram of tissue)(b)를 나타낸다(data = 평균 ± SD, 이원 변량 분석을 사용하여 수행된 통계적 유의성 : **p < 0.05, ***p<0.001은 유의한 것, NS는 비유의한 것으로 간주됨).
도 9는 본 발명의 일 실시예에 따른 나노마이셀(HGC-TAC 나노마이셀) 및 TAC의 마우스 신장에서의 각 마커 단백질의 발현에 미치는 효과, 및 IHC 염색 이미지를 나타낸다(원배율, 100x, scale bar = 100 μm; 삽입도: 사구체의 확대도, 원배율, 400x. scale bar = 25 μm).
도 10은 본 발명의 일 실시예에 따른 나노마이셀 및 TAC의 마우스에 대한 전신효과를 확인하기 위한 체중, 혈청 크레아닌 및 혈장 TAC 수준을 나타낸다(data = 평균 ± SEM, *p < 0.05, NS는 비유의한 것).
공급비 (TAC:HGC) (w/w%) |
샘플 | 유체역학적 직경 (nm) |
제타 전위 (mV) | 다분산지수 (PDI) |
약물 로딩 효율a) (%) |
캡슐화 효율 (%) |
-- | HGC | 198.1 ± 21.68 | 24.1 ± 1.17 | 0.496 ± 0.177 | -- | -- |
1:10 (실시예 5) |
HGC 1 | 219.13 ± 7.90 | 21.9 ± 8.51 | 0.713 ± 0.083 | 12.4 ± 0.8 | 85.02 ± 3.23 |
2:10 (실시예 4) |
HGC 2 | 221.9 ± 22.65 | 22.03 ± 4.34 | 0.838 ± 0.089 | 15.96 ± 1.10 | 78.05 ± 3.55 |
3:10 (실시예 3) |
HGC 3 | 334.83 ± 20.42 | 21.4 ± 2.83 | 0.669 ± 0.094 | 26.85 ± 1.75 | 92.31 ± 5.37 |
Claims (10)
- 신장 표적화 약물전달체 및 상기 약물전달체 내부에 담지된 약물을 포함하고,
상기 신장 표적화 약물전달체는 글리콜 키토산 나노입자를 포함하고,
상기 글리콜 키토산 나노입자는 소수성 담즙산으로 치환된 글리콜 키토산을 포함하고,
상기 소수성 담즙산은 콜산, 케노데옥시콜산, 글리코콜산, 타우로콜산, 데옥시콜산, 리소콜산 및 7-옥소-리소콜산으로 구성된 군으로부터 선택되는 하나 이상이고,
상기 글리콜 키토산 나노입자는 형광염료를 포함하고,
상기 형광염료는 Cy3, Cy3.5, Cy5, Cy5.5, Cy7, Cy7.5, sulfo-Cy3, sulfo-Cy5, sulfo-Cy7, IR780, IR820, Flamma® 552 Vinylsulfone, Flamma® 581 Vinylsulfone, Flamma® 594 Vinylsulfone, Flamma® 648 Vinylsulfone, Flamma® 749 Vinylsulfone, Flamma® 774 Vinylsulfone, Alexa Fluor® 555, Alexa Fluor® 594, Alexa Fluor® 680, Alexa Fluor® 750, CF770, IRDye 680LT, IRDye 750, DyLight 549, DyLight 594, DyLight 650, DyLight 680, DyLight 755, ATTO 550 및 ATTO 647N으로 구성된 군으로부터 선택되는 하나이고,
상기 약물은 타크로리무스(Tacrolimus)이고,
상기 글리콜 키토산은 마이셀 형태인 것을 특징으로 하는 신장 표적화 약학적 조성물.
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- 제 1 항에 따른 약학적 조성물을 이용하는 인간을 제외한 동물의 신장으로의 약물 전달 방법.
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