JP2005536496A - 生細胞又は生物学的活性因子を封入し送達するための、細胞適合性、注射可能、かつ自己ゲル化性のキトサン溶液の組成物 - Google Patents
生細胞又は生物学的活性因子を封入し送達するための、細胞適合性、注射可能、かつ自己ゲル化性のキトサン溶液の組成物 Download PDFInfo
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Abstract
Description
本発明は、組織再生又は創傷治癒を補助するための細胞適合性クロスリンカーの補助によってインサイチューで凝固することができる中性等張キトサン・ゲル溶液により生細胞を封入するための組成物及び適用方法に関する。
1)キトサン液体溶液
50%DDA〜100%DDAの脱アセチル度(DDA)を有するキトサンは、見かけのキトサンpKa(pH2.5〜pH6.0)未満のpHを有する酸性水性溶液で完全に可溶化され得る。そのようなキトサン溶液は、細胞の生存可能性とは不適合性である。ほとんどの緩衝液によるpHを細胞適合性レベルにまで上昇させる試みは、本出願人により以前に示されたように、使用される緩衝液がポリオール−リン酸(グリセロールリン酸、GP)二塩基塩(Cheniteの特許国際公開公報99/07416号)でない限り、溶液の沈殿を引き起こすであろう。pH6.8〜7.2のキトサン/GP液体溶液は、細胞適合性であり、熱ゲル化性である。しかしながら、体温に近い温度でゲル化し得るキトサン/GP溶液は、細胞適合性の限度をはるかに越えた塩濃度を含有している(8%GP二ナトリウムは、およそ360mM又は1080mOsmである)。熱ゲル化温度はGP濃度に反比例し、従って、等張塩レベル(3%GP二ナトリウム、およそ126mM、378mOsm)へGP濃度を低下させると、65℃を超える非生理学的な温度で熱ゲル化する溶液が得られる。従って、GPにより細胞適合性のpH及び張度(tonicity)にされた、酸で可溶化されたキトサンを使用して、細胞適合性の液体キトサン溶液を作製することはできるが、これらの溶液は、開放された体腔又はペトリにおいてゲル化し得ない。
グリオキサール(Freeman 米国特許第5,489,401号、1996年)、グルタルアルデヒド(Hsien T-Y及びRorrer GL Ind Eng Chem Res.36:3631-3638,1997;Oyrton AC Montiero Jr及びAiroldi C:Internat.J.Biological Macromolecules.26:119-128,1999;Kumbar,SGら、J.Microencapsulation 19:173-180,2002;並びにMi,F-Lら、Biomaterials.23:181-191,2002)、スクアラート(DeAngelis AAら、Macromolecules 31:1595-1601,1998)、オリゴ(エチレンオキシド)(Rogovina SZら、Polymer Science,43:265-268,2001)、テトラメトキシ・プロパン(Capitani Dら、Carbohydrate Polymers 45:245-252,2001)、及びゲネピン(genepin)(Mi,F-Lら、Biomaterials.23:181-191,2002)を含む、液体キトサンから固体ゲルを形成させるための多くの化学的クロスリンカーが、提唱されている。先行発明は、中性キトサン溶液が、0.01重量%〜10重量%グリオキサールのグリオキサール溶液又はその他の二官能性クロスリンカーを使用してゲル化するよう誘導され得ることも教示している(Cheniteら 国際公開公報第02/40070号)。しかしながら、これらの濃度のグリオキサールは、細胞にとって毒性である。
本発明の一つの目的は、凝固し、細胞又は因子が捕捉又は固定化されたインプラント又はフィルムを形成することができる、細胞又は生物学的活性因子が負荷された生体適合性のポリマー液体溶液を提供することである。従って、その溶液は、細胞の生存可能性を持続させるか、又は注射部位における生理活性分子の放出制御を提示する、生体適合性の固体の足場を形成することができる。注射後、インプラントは、送達された細胞、ホルモン、薬、DNA、又は充填剤(bulking agent)からの治療効果を与え得る。
a)等張の中性キトサンの液体多糖溶液;及び
b)生理学的媒体に溶解した二官能性又は多官能性のアルデヒド又はアルデヒドで処理されたヒドロキシル含有ポリマーからなる架橋溶液を含む、生存可能かつ機能的な細胞又は生理活性物質を固定化し封入するための組成物が提供される。
a)0.5〜5.0重量%のキトサン又はキトサン誘導体又はポリアミン含有ポリマー;及び
b)0.0001〜3%のグリオキサールを含むことができ、そして随意的に、
c)0.01〜5.0重量%のヒドロキシエチル・セルロースを含んでいてもよい。
該溶液は、4℃〜42℃、より好ましくは20℃〜42℃の温度で、細胞の生存可能性を維持するための生理学的環境を提供するゲルを形成する。
本発明により、グリセロール・リン酸塩により生理学的pHにされ、次いで、二官能性ジアルデヒド(グリオキサール)により架橋された酸可溶性キトサンのポリマー・マトリックスへの細胞固定化の新たな手法が提供される。二官能性ジアルデヒドは、単独で提示されてもよいし、又はヒドロキシエチル・セルロースとコンジュゲートしたヘミ−アセタール中間体として提示されてもよい。キトサン溶液が無菌であり、等張で、かつほぼ中性のpHの液体溶液中にある限り、この組成物は、高レベルの細胞生存可能性を維持する。この目的のためには、酸可溶性キトサンをオートクレーブにより滅菌してもよいし、又は結晶性粉末塩形態のキトサンを、UV光曝露により滅菌した後、水に溶解させてもよい。グリセロール・リン酸塩により中性pHへと調整する前に、キトサンの分子量を、粘性の再現可能な損失をもたらすオートクレーブ依存性の加水分解により変動させることができる。もう一つの態様において、キトサンを沈殿させることなく、キトサン溶液のpHを6.5〜6.8に増加させる他のリン酸緩衝液が使用されてもよい。添加されたグリセロール・リン酸塩又はリン酸緩衝液は、生理学的に容認される限度内、又は200〜460mOsmの最終浸透圧をもたらす。
Claims (44)
- 生存可能かつ機能的な細胞又は生理活性物質を固定化し封入するための組成物であって、
a)等張の中性キトサンの液体多糖溶液;及び
b)生理学的媒体に溶解した二官能性又は多官能性のアルデヒド又はアルデヒドで処理されたヒドロキシル含有ポリマーからなる架橋溶液を含む、組成物。 - 架橋溶液が、ヒドロキシル化ポリマーが溶液中で液体のままであることを許容するような適当な比率及び分子量の二官能性又は多官能性のクロスリンカー及びヒドロキシル化ポリマーからなる、請求項1記載の組成物。
- 架橋溶液が、生理学的媒体に溶解したグリオキサール又はグリオキサールで処理されたヒドロキシエチル・セルロースからなる、請求項1記載の組成物。
- a)0.5〜5.0重量%のキトサン又はキトサン誘導体又はポリアミン含有ポリマー;及び
b)0.01〜5.0重量%のヒドロキシエチル・セルロースを含む、請求項1記載の組成物において、
溶液が、4℃〜42℃の温度で、細胞の生存可能性を維持するための生理学的環境を提供するゲルを形成する、組成物。 - c)0.0001〜3%グリオキサールをさらに含む、請求項4記載の組成物。
- (a)及び(b)を混合した後、数秒〜数時間以内にゲルを形成する、請求項4記載の組成物。
- (a)、(b)、及び(c)を混合した後、数秒〜数時間以内にゲルを形成する、請求項5記載の組成物。
- 溶液が20℃〜42℃の温度でゲルを形成する、請求項4記載の組成物。
- キトサンが希酸に溶解され、1.0〜2.5重量%の一リン酸二塩基塩又は一硫酸塩からなるポリオールの塩と混合されている、請求項1記載の組成物。
- 一リン酸二塩基塩が、グリセロールの一リン酸二塩基塩である、請求項9記載の組成物。
- グリセロールの一リン酸二塩基塩が、グリセロール-2-リン酸二塩基塩、sn-グリセロール3-リン酸二塩基塩、及びL-グリセロール-3-リン酸二塩基塩からなる群より選択される、請求項9記載の組成物。
- キトサンが、リン酸緩衝液及び塩とさらに混合されている、請求項1記載の組成物。
- 生物学的活性因子をさらに含む、請求項1記載の組成物。
- 生物学的活性因子が、細胞、ホルモン、薬、DNA、充填剤、増殖因子、DNA、DNA-ポリマー複合体、リポソーム、薬理学的薬剤、代謝因子、抗体、栄養因子、血管形成因子、及び放射性同位体からなる群より選択される、請求項13記載の組成物。
- 細胞が生細胞である、請求項14記載の組成物。
- 細胞が、髄核、線維輪、又はそれらの混合物である、請求項14記載の組成物。
- 細胞が、胚性幹細胞、又は骨髄、脂肪、筋肉、脳、皮膚、肝臓、血管平滑筋、内皮、血液、もしくは胎盤からなる群より選択される組織に由来する幹細胞である、請求項14記載の組成物。
- 細胞が、一次細胞、分化細胞、遺伝学的に修飾された細胞、ハイブリドーマ、不死化細胞、形質転換細胞、組織断片細胞、細胞小器官、又はそれらの混合物、有核細胞、除核細胞、胚細胞、血小板細胞、基質小胞、細胞小胞、鉱質除去された骨ペースト、骨チップ、軟骨断片又は細胞断片又は組織断片である、請求項14記載の組成物。
- 細胞が、自己細胞、同種異系細胞、又は異種細胞である、請求項14記載の組成物。
- 生物学的活性因子が、フィブリノーゲン、フィブリン、フィブロネクチン、ヒアルロン酸、ヘパリン、コラーゲン、ポリリジン、ポリオルニチン、受容体結合性環状ペプチド、受容体結合性タンパク質からなる群より選択される細胞接着因子である、請求項14記載の組成物。
- 生物学的活性因子が、酵素、増殖因子、又は増殖因子が固定化された物質である、請求項14記載の組成物。
- 生物学的活性因子が、リポソーム、脂質複合体、キトサン複合体、ポリリジン複合体、DEAEデキストラン複合体の形態のプラスミドDNAである、請求項14記載の組成物。
- 生物学的活性因子がワクチンである、請求項14記載の組成物。
- ワクチンが感染性ウイルス粒子を含む、請求項23記載の組成物。
- 生物学的活性因子が、栄養因子又は代謝因子である、請求項14記載の組成物。
- 栄養因子又は代謝因子が、脂質、アミノ酸、並びにコレステロール、グルタミン、グルコサミン、アスコルビン酸、ピルビン酸塩、及び乳酸塩からなる群より選択される補因子である、請求項25記載の組成物。
- 生物学的活性因子が、末梢血、骨血液、臍帯血、血液製剤、血液由来細胞、血清、血小板、多血小板血漿、フィブリノーゲン、凝固因子、及び血液由来酵素からなる群より選択される少なくとも一つのエレメントである、請求項14記載の組成物。
- 生物学的活性因子が、骨形成物質である、請求項14記載の組成物。
- 骨形成物質が、TGF-β1、BMP-2、BMP-6、BMP-7、又はそれらの混合物からなる群より選択される骨形成タンパク質ファミリーのメンバーである、請求項28記載の組成物。
- ヒドロキシル含有ポリマーが、二官能性反応性アルデヒドと連結されたポリビニルアルコール、デキストランである、請求項1記載の組成物。
- 軟組織修復のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 生物学的活性因子の部位特異的送達のための、請求項14又は15記載の組成物の使用。
- 骨修復のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 損傷を受けた軟骨の修復又は表面再建のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 半月板の修復のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 軟組織修復のための薬物の製造のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 生物学的活性因子の部位特異的送達のための薬物の製造のための、請求項14又は15記載の組成物の使用。
- 骨修復のための薬物の製造のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 損傷を受けた軟骨の修復又は表面再建のための薬物の製造のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 半月板の修復のための薬物の製造のための、請求項1〜30のいずれか一項記載の組成物の使用。
- 軟組織を修復する方法であって、患者の修復を必要とする軟組織の部位に請求項1記載の組成物を投与する工程を含む、方法。
- 損傷を受けた軟骨を修復又は表面再建する方法であって、患者の修復又は表面再建を必要とする軟骨又はその周辺に請求項1記載の組成物を投与する工程を含む、方法。
- 半月板を修復する方法であって、患者の半月板の部位に請求項1記載の組成物を投与する工程を含む、方法。
- 生理学的媒体が、等張かつ中性pHで、グルコース、アミノ酸、及びビタミン、又はそれらの組み合わせからなる群より選択される細胞栄養素を含む、請求項3記載の組成物。
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JP2011285187A Expired - Fee Related JP5670872B2 (ja) | 2002-07-16 | 2011-12-27 | 生細胞又は生物学的活性因子を封入し送達するための、細胞適合性、注射可能、かつ自己ゲル化性のキトサン溶液の組成物 |
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2003
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- 2003-07-16 CA CA2493083A patent/CA2493083C/en not_active Expired - Fee Related
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- 2003-07-16 WO PCT/CA2003/001069 patent/WO2004006961A1/en active Application Filing
- 2003-07-16 AU AU2003249805A patent/AU2003249805A1/en not_active Abandoned
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- 2003-07-16 DE DE60334224T patent/DE60334224D1/de not_active Expired - Lifetime
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2009
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2014034884A1 (ja) * | 2012-08-31 | 2016-08-08 | 国立大学法人北陸先端科学技術大学院大学 | 凍結保存可能な細胞足場材料 |
WO2020004813A1 (ko) * | 2018-06-28 | 2020-01-02 | 에스케이바이오랜드 주식회사 | 2액형 지혈제 조성물 및 그 제조방법 |
Also Published As
Publication number | Publication date |
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AU2003249805A1 (en) | 2004-02-02 |
DE60334224D1 (de) | 2010-10-28 |
JP5614913B2 (ja) | 2014-10-29 |
WO2004006961A1 (en) | 2004-01-22 |
US20090202430A1 (en) | 2009-08-13 |
EP1536837B1 (en) | 2010-09-15 |
JP2012092137A (ja) | 2012-05-17 |
CA2493083C (en) | 2012-11-06 |
EP1536837A1 (en) | 2005-06-08 |
CA2493083A1 (en) | 2004-01-22 |
US20060127873A1 (en) | 2006-06-15 |
ATE481110T1 (de) | 2010-10-15 |
JP5670872B2 (ja) | 2015-02-18 |
ES2353116T3 (es) | 2011-02-25 |
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