JP4566515B2 - 創傷治癒を促進する薬物送達マトリックス - Google Patents
創傷治癒を促進する薬物送達マトリックス Download PDFInfo
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- JP4566515B2 JP4566515B2 JP2002582995A JP2002582995A JP4566515B2 JP 4566515 B2 JP4566515 B2 JP 4566515B2 JP 2002582995 A JP2002582995 A JP 2002582995A JP 2002582995 A JP2002582995 A JP 2002582995A JP 4566515 B2 JP4566515 B2 JP 4566515B2
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Description
組成物は天然または合成マトリックスおよび創傷治癒を改善するために患者に投与し得る生活性分子、特に増殖因子から形成される。組成物はまた、その中に生活性分子が捕捉されるマトリックスの前駆材料とも考えられ、すなわち、それらは生活性分子が捕捉されたマトリックスを形成するのに必要または適切な少なくとも一つの成分を含み得る。この生活性化合物は制御された様式でマトリックスから放出される。生活性化合物はシスチンノット増殖因子スーパーファミリーの脱グリコシル化メンバー、特にTGFβスーパーファミリーの非グリコシル化メンバーである。
A.マトリックス
フィブリンマトリックス
合成マトリックス
B.生活性分子
増殖因子
TGFβスーパーファミリー
脱グリコシル化BMP
II.マトリックス内に生活性分子を組み込む方法
A.沈殿形成およびマトリックスの化学修飾
III.創傷治癒を促進するマトリックスの使用方法
A.組成物を必要とする患者のタイプ
B.投与方法
C.用量
凝固酵素、XIIIa因子の本来の酵素活性を測定する試験を行った。この試験は二つの異なるソースからのフィブリンゲルが凝固プロセス中に合成基質を共有結合的に組み込む能力を測定することにより行った。一つのフィブリンゲルソースはフィブリン接着剤キットに由来するものであり、もう一つのソースは精製フィブリンゲルに由来するものである。α2−プラスミン阻害剤に由来するペプチドはXIIIa因子の作用によりフィブリンゲルに共有結合的に組み込まれ得る。よって、フィブリンゲルまたはその希釈物における酵素活性を調べる一つの方法は異なるフィブリンソースがこの同じペプチドを組み込む能力を調べることを含む。これらのゲルは種々の量の蛍光標識ペプチドを用いて合成し、PBS(0.03M、pH7.4)で洗浄し、マトリックスから遊離のペプチドを除去した。次にこれらのゲルを必要最少量のプラスミンで分解し、サイズ排除クロマトグラフィーで分析した。種々の希釈率のフィブリン接着剤キットまたは精製フィブリンゲルを用いた場合の、マトリックスに結合した蛍光シグナル(すなわちペプチド)の量を測定した。この結果をマトリックスに存在する架橋活性の量と相関させた。
実施例2:異なるソースからのフィブリンゲルのin vivoにおける比較
実施例3:フィブリンマトリックス中における可溶性および不溶性生活性分子の保持の比較
実施例4:ラットにおける臨界大腿骨欠損のin vivo治癒
合成マトリックスを用いたin vivo実験
コラーゲンマトリックスを用いたin vivo実験
実施例6:イヌ全手根関節固定術における治癒
実施例7:ネコの長骨癒着不能における治癒
実施例8:フィブリンおよび合成マトリックスにおける非グリコシル化rhPDGF-ABの保持
Claims (45)
- 互いに分離された少なくとも第一および第二の組成物を含んでなる創傷治癒系であって、上記第一または第二の組成物の少なくとも一方がシスチンノット増殖因子スーパーファミリーの脱グリコシル化メンバーから選択される生物活性分子を含んでなり(ここで、該生物活性分子は、本来見られるものとしてその分子の一以上の部位でグリコシル化されているが、化学的または酵素的方法により、あるいはそれを非グリコシル化分子として製造することによって分子からグリコシル化が除去されている)、かつ、
上記第一および第二の組成物が該成分の重合が可能な条件下で混合した際に三次元ネットワークを形成する前駆体成分を含んでなり、該成分がフィブリンを形成できる、またはミカエル型付加反応を受けることができ、ここで、ミカエル型付加反応の場合、第一の組成物がn個の求核基(ここでnは少なくとも2である)を有する少なくとも一種の前駆体成分を含んでなり、第二の組成物がm個のコンジュゲート不飽和基(ここでmは少なくとも2であり、n+mは少なくとも5である)を有する少なくとも一種の前駆体成分を含んでなり、またフィブリンを形成する場合、第一の組成物がフィブリノーゲンを含み、かつ第二の組成物がトロンビンを含んでなる、系。 - 第一または第二の組成物の少なくとも一方がカルシウム源をさらに含んでなる、請求項1に記載の系。
- 第一の組成物がフィブリノーゲンおよびトロンビンを含んでなり、第二の組成物がカルシウム源を含んでなる、請求項1に記載の系。
- 第一および第二の組成物の少なくとも一方が塩基をさらに含んでなる、請求項3に記載の系。
- 第一の組成物がn個の求核基を有する少なくとも一種の成分およびm個のコンジュゲート不飽和基を有する少なくとも一種の成分を含んでなり(ここで、mおよびnは少なくとも2であり、m+nは少なくとも5である)、第二の組成物が少なくとも一種の塩基を含んでなる、請求項1に記載の系。
- 求核基およびコンジュゲート不飽和基が塩基により触媒されるミカエル付加反応において互いに反応し得る、請求項4〜5のいずれか一項に記載の系。
- 求核基がチオールである、請求項4〜6のいずれか一項に記載の系。
- コンジュゲート不飽和基がビニルスルホンおよびアクリレートからなる群から選択される、請求項4〜6のいずれか一項に記載の系。
- 求核基を含んでなる成分がポリエチレングリコール、酵素分解性ペプチドおよび酵素分解性タンパク質からなる群から選択される、請求項4〜8のいずれか一項に記載の系。
- コンジュゲート不飽和基を含んでなる成分が合成ポリマーから選択される、請求項4〜9のいずれか一項に記載の系。
- 合成ポリマーがポリエチレングリコールである、請求項10に記載の系。
- 生活性分子がTGFβスーパーファミリーの脱グリコシル化メンバーである、請求項1〜11のいずれか一項に記載の系。
- 生活性分子が骨形態形成タンパク質の脱グリコシル化メンバーである、請求項12に記載の系。
- 生活性分子が脱グリコシル化rh−BMP2である、請求項13に記載の系。
- 生活性分子が血小板由来増殖因子(PDGF)である、請求項12に記載の系。
- PDGFがPDGF ABである、請求項15に記載の系。
- 上記成分が三次元マトリックスを形成する条件がヒトまたは動物の身体の生理条件である、請求項1〜16のいずれか一項に記載の系。
- 創傷治癒および組織再生のマトリックスとして用いられる三次元ネットワークの製造のための、請求項1〜17のいずれか一項に記載の系の使用。
- 創傷が骨の欠損である、請求項18に記載の使用。
- 創傷が皮膚の慢性創傷である、請求項18に記載の使用。
- フィブリン、または、n個の求核基(ここでnは少なくとも2)を有する少なくとも一つの前駆体成分とm個のコンジュゲート不飽和基(ここでmは少なくとも2、n+mは少なくとも5)を有する少なくとも一つの前駆体成分のミカエル型付加反応によって形成される合成ポリマーを含む高分子マトリックス、および
高分子マトリックスに物理的に捕捉された生活性分子
を含んでなり、生活性分子がシスチンノット増殖因子スーパーファミリーの脱グリコシル化メンバーである(ここで、該生物活性分子は、本来見られるものとしてその分子の一以上の部位でグリコシル化されているが、化学的または酵素的方法により、あるいはそれを非グリコシル化分子として製造することによって分子からグリコシル化が除去されている)、創傷治癒用組成物。 - 生活性分子がTGFβスーパーファミリーの脱グリコシル化メンバーである、請求項21に記載の組成物。
- 生活性分子が脱グリコシル化骨形態形成タンパク質である、請求項22に記載の組成物。
- 生活性分子が脱グリコシル化rh−BMP−2である、請求項23に記載の組成物。
- 生活性分子が脱グリコシル化血小板由来増殖因子である、請求項22に記載の組成物。
- 上記分子がPDGF ABである、請求項25に記載の組成物。
- マトリックスが合成ポリマーから形成される、請求項21〜25のいずれか一項に記載の組成物。
- 合成ポリマーがポリ(エチレンオキシド)(PEO)、ポリ(エチレングリコール)(PEG)、およびポリ(プロピレンオキシド)との共重合体(PEG−co−PPG)、ポリ(ビニルアルコール)(PVA)、ポリ(ビニルピロリドン)(PVP)、ポリ(エチルオキサゾリン)(PEOX)、ポリアミノ酸、およびプソイドポリアミノ酸、ならびにこれらのポリマーの共重合体からなる群から選択される、請求項27に記載の組成物。
- 生活性分子をマトリックス内で沈殿させることにより物理的に捕捉する、請求項21〜28のいずれか一項に記載の組成物。
- 請求項1〜19のいずれか一項に記載の系の第一および第二の組成物を体外またはinvitroで混合することを含んでなる、創傷治癒を改善するマトリックスを形成する方法。
- マトリックスの形成中に生活性分子を沈殿させる、請求項30記載の方法。
- マトリックスの形成前に生活性分子を沈殿させる、請求項30記載の方法。
- シスチンノット増殖因子スーパーファミリーのグリコシル化メンバーの、フィブリンおよびポリエチレングリコールからなる群から選択されるマトリックス中での溶解度を低下させる方法であって、増殖因子を脱グリコシル化型へと変換するステップを含んでなる、方法。
- 増殖因子が骨形態形成タンパク質および血小板由来増殖因子(PDGF)からなる群から選択される、請求項33に記載の方法。
- 増殖因子がrh BMP−2である、請求項34に記載の方法。
- 増殖因子がPDGF ABである、請求項34に記載の方法。
- 創傷治癒を改善する組成物を形成する方法であって、
生活性分子を高分子マトリックス内で沈殿させることを含んでなり、
生活性分子がシスチンノット増殖因子スーパーファミリーの非グリコシル化メンバーであり(ここで、該生物活性分子は、本来見られるものとしてその分子の一以上の部位でグリコシル化されているが、化学的または酵素的方法により、あるいはそれを非グリコシル化分子として製造することによって分子からグリコシル化が除去されている)、該高分子マトリックスがフィブリン、または、n個の求核基(ここでnは少なくとも2)を有する少なくとも一つの前駆体成分とm個のコンジュゲート不飽和基(ここでmは少なくとも2、n+mは少なくとも5)を有する少なくとも一つの前駆体成分のミカエル型付加反応によって形成される合成ポリマーを含む、方法。 - 生活性分子がTGFβスーパーファミリーの非グリコシル化メンバーである、請求項37に記載の方法。
- 生活性分子が骨形態形成タンパク質の非グリコシル化メンバーである、請求項38に記載の方法。
- 骨形態形成タンパク質の非グリコシル化メンバーがrh−BMP−2である、請求項39に記載の方法。
- 合成ポリマーがポリ(エチレンオキシド)(PEO)、ポリ(エチレングリコール)(PEG)および、ポリ(プロピレンオキシド)との共重合体(PEG−co−PPG)、ポリ(ビニルアルコール)(PVA)、ポリ(ビニルピロリドン)(PVP)、ポリ(エチルオキサゾリン)(PEOX)、ポリアミノ酸、およびプソイドポリアミノ酸、ならびにこれらのポリマーの共重合体からなる群から選択される、請求項37〜40のいずれか1項に記載の方法。
- 請求項1〜19のいずれか一項に記載の系を含む装置。
- 装置がツーコンパートメントシリンジであり、第一のコンパートメントが第一の組成物を含み、第二のコンパートメントが第二の組成物を含み、これらの2つのコンパートメントが双方向コネクターで接続されている、請求項42に記載の装置。
- 2つのコンパートメントが二部型であり、コンパートメント壁に対して垂直の調整パーティションによって仕切られる、請求項43に記載の装置。
- 創傷治癒用薬剤の製造のための、請求項21〜29のいずれか一項に記載の組成物の使用。
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| EP1406678B1 (en) | 2009-01-14 |
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| CA2681952A1 (en) | 2002-10-31 |
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| WO2002085422A1 (en) | 2002-10-31 |
| DE60230873D1 (de) | 2009-03-05 |
| JP2004531534A (ja) | 2004-10-14 |
| US20070202178A1 (en) | 2007-08-30 |
| ES2321068T3 (es) | 2009-06-02 |
| CA2445239C (en) | 2012-08-21 |
| ATE420670T1 (de) | 2009-01-15 |
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