JP7360184B2 - マグネシウムイオンを含む自己集合複合体 - Google Patents
マグネシウムイオンを含む自己集合複合体 Download PDFInfo
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Description
金属イオンやリガンドを用いて自己分解速度を調整できる自己集合複合体、並びに、該自己集合複合体の自己集合・分解の特性を以って、有効成分を送達する有効成分送達システムに関する。
一つ以上の金属イオンと、前記金属イオンとイオン結合をするリガンドを含み、
可逆的に自己集合又は自己分解を起こし、前記金属イオン及びリガンドの濃度のうちいずれか一つ以上により自己集合が行われ、前記リガンドにより自己分解速度が制御され、第1放出時間において金属イオン、リガンド、有効成分のうちいずれか一つが持続的に放出される、自己集合複合体を提供する。
体内に存在する物質を含む自己集合複合体であって、
一つ以上の金属イオンと、前記金属イオンとイオン結合をするリガンドを含み
可逆的に自己集合又は自己分解を起こし、
前記金属イオン及びリガンドの濃度のうちいずれか一つ以上により自己集合が行われ、前記リガンドにより自己分解速度が制御され、第1放出時間において金属イオン、リガンド、有効成分のいずれか一つ以上が持続的に放出される、自己集合複合体を提供する。
実施例1(Mg-ATP-adenosine)
Mg-ATP-adenosine自己集合複合体を製造するために、アデノシン三リン酸(adenosine triphosphate、ATP)25mmol/L(脱イオン水2mLにATP 27.6mg)、塩化マグネシウム7水和物(MgCl27H2O)25mmol/L(脱イオン水2mLにMg2+ 10.1mg)、並びにアデノシン25 mmol/L(脱イオン水2mLにアデノシン13.4mg)を混合し、アデノシン自己集合複合体を形成した。言い換えれば、アデノシン三リン酸2mLを塩化マグネシウム7水和物溶液と4:5の割合にて室温(25℃)で30秒間混合し、混合物を形成した。上記の混合物にアデノシン溶液を点滴し、Mg-ATP-adenosine自己集合複合体を製造した。
Mg-AMP-adenosine自己集合複合体を製造するために、アデニル酸(adenosine monophposphate、AMP)10mmol/L(脱イオン水2mLにAMP 6.9mg)、塩化マグネシウム7水和物(MgCl27H2O)10mmol/L(脱イオン水2mLにMg2+ 4mg)、アデノシン50mmol/L(脱イオン水2mLにアデノシン26.7mg)を混合し、アデノシン自己集合複合体を形成した。言い換えれば、アデノシン一リン酸2mLを塩化マグネシウム7水和物溶液と4:5の割合にて室温(25℃)で30秒間混合し、混合物を形成した。上記の混合物にアデノシン溶液を点滴し、Mg-AMP-adenosine自己集合複合体を製造した。
本発明による自己集合複合体を観察するために、実施例1及び実施例2で製造したMg-ATPとMg-AMPをそれぞれ500μlずつアデノシン溶液と混合し、22X22mmサイズの6ウェルプレートを含むガラス基板上に置き、脱イオン水で繰り返し洗浄した。30分後に洗浄された溶液を塩酸(HCl)で処理し、37℃のオーブンで24時間乾燥させた。自己集合複合体の製造に先立って、当該ガラス基板を硫酸(H2SO4)に1時間浸した後、脱イオン水で再び洗浄してガラス基板上に水酸基を活性化させた。当該ガラス基板を、塩酸とメタノールが1:1で混合された混合溶液に浸し、脱イオン水で洗浄した。活性化されたガラス基板を、0.5mMのメルカプトプロフィールシラストレイン(mercaptosilatrane)を含有するメタノールに暗条件で1時間培養(incubation)してチオール化した後、メタノールで洗浄して使用した。製造した自己己集合複合体の形態を確認するため、走査電子顕微鏡(EM)で観察した。
Claims (11)
- 体内に存在する物質を含む有効成分送達のための自己集合複合体であって、前記物質は金属イオン、リガンドおよび有効成分を1つ以上含み、前記自己集合複合体は、
一つ以上の前記金属イオンと、前記金属イオンとイオン結合をするリガンドを含み、
ここで、前記金属イオンは、マグネシウムのイオンを含み、
前記リガンドは、アデノシン一リン酸、アデノシン二リン酸、及びアデノシン三リン酸のうちいずれか一つ以上を含み、
ここで、前記自己集合複合体は、可逆的に自己集合又は自己分解を起こし、
前記金属イオン及び前記リガンドの濃度のうちいずれか一つ以上により自己集合が行われ、
前記リガンドにより自己分解速度が制御され、前記自己集合複合体は、さらに一つ以上の有効成分を含み、第1放出時間において前記金属イオン、前記リガンドおよび前記有効成分のうちいずれか一つ以上が持続的に放出され、かつ
前記有効成分は、アデノシン、グアノシン、ウリジン、及び、シチジンのうちいずれか一つ以上を含む、
自己集合複合体。 - 前記第1放出時間は20日以上である、請求項1に記載の自己集合複合体。
- 前記自己集合複合体は、外部イオンを含む外部溶液により自己分解を起こし、前記外部イオンの種類により自己分解速度が制御される、請求項1に記載の自己集合複合体。
- 前記外部イオンは、カルシウム、ナトリウム、カリウム、リン酸塩、水素、水酸化物のうちいずれか一つ以上のイオンを含み、前記自己集合複合体を自己分解する、請求項3に記載の自己集合複合体。
- 前記自己集合複合体は、前記一つ以上の金属イオンと前記一つ以上のリガンドが含まれ凝集したものである、請求項1に記載の自己集合複合体。
- 前記リガンドにリン酸塩が二つ以上含まれている場合の自己分解速度に対して、前記リガンドにリン酸塩が一つである場合の自己分解速度が2倍~6倍ほど早く調整される、請求項1に記載の自己集合複合体。
- 前記自己集合複合体は、前記金属イオンの濃度が1~30mMである場合に自己集合を起こす、請求項1に記載の自己集合複合体。
- 前記自己集合複合体は、前記リガンドの濃度が10~70mMである場合に自己集合を起こす、請求項1に記載の自己集合複合体。
- 請求項1~8のうちいずれか一項に記載の自己集合複合体を用いた有効成分送達システム。
- 前記有効成分は、薬物、小分子、高分子、タンパク質のうちいずれか一つ以上を含む、請求項9に記載の有効成分送達システム。
- 前記自己集合複合体に存在する金属イオンが外部溶液に含まれている外部イオンで置換されることにより、前記有効成分の放出を促進する、請求項9に記載の有効成分送達システム。
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| KR102924179B1 (ko) * | 2022-04-13 | 2026-02-10 | 고려대학교 산학협력단 | 칼슘 이온을 포함하는 자가조립 복합체 |
| KR102727631B1 (ko) * | 2022-11-22 | 2024-11-07 | 주식회사 럭키산업 | 구강병 예방용 마우스피스형 칫솔 및 이의 제조방법. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009512728A (ja) | 2005-10-24 | 2009-03-26 | シントニクス,インコーポレーテッド | 金属配位組成物 |
| US20160022707A1 (en) | 2013-03-14 | 2016-01-28 | Drexel University | Chelated drug delivery systems |
| US20180169141A1 (en) | 2016-12-19 | 2018-06-21 | The Chinese University Of Hong Kong | Injectable hydrogels that promote mineralization and afford sustained release of bioactive ions |
| CN111317826A (zh) | 2020-03-19 | 2020-06-23 | 上海交通大学 | 基于金属离子配位自组装构建核酸复合纳米药物及其制备方法和应用 |
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| KR101577269B1 (ko) * | 2014-01-15 | 2015-12-14 | 가톨릭대학교 산학협력단 | 칼슘 이온 및 인산기를 가진 친수성 뉴클레오타이드 또는 이의 유사체를 이용한 나노복합체의 제조방법 및 상기 나노복합체를 이용한 약물전달체 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009512728A (ja) | 2005-10-24 | 2009-03-26 | シントニクス,インコーポレーテッド | 金属配位組成物 |
| US20160022707A1 (en) | 2013-03-14 | 2016-01-28 | Drexel University | Chelated drug delivery systems |
| US20180169141A1 (en) | 2016-12-19 | 2018-06-21 | The Chinese University Of Hong Kong | Injectable hydrogels that promote mineralization and afford sustained release of bioactive ions |
| CN111317826A (zh) | 2020-03-19 | 2020-06-23 | 上海交通大学 | 基于金属离子配位自组装构建核酸复合纳米药物及其制备方法和应用 |
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| ACS Appl.Mater. Interfaces,2019年,Vol.11,pp.29512-29521 |
| Geobiology,2012年,Vol.10,pp.269-279 |
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| US12303565B2 (en) | 2025-05-20 |
| KR20220049360A (ko) | 2022-04-21 |
| CN114344471A (zh) | 2022-04-15 |
| EP3984557A1 (en) | 2022-04-20 |
| WO2022080695A1 (ko) | 2022-04-21 |
| KR102520641B1 (ko) | 2023-04-11 |
| JP2022064815A (ja) | 2022-04-26 |
| US20220111059A1 (en) | 2022-04-14 |
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