JP5868592B2 - ケラチンバイオマテリアルを含有する創傷治癒組成物 - Google Patents
ケラチンバイオマテリアルを含有する創傷治癒組成物 Download PDFInfo
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- JP5868592B2 JP5868592B2 JP2010504088A JP2010504088A JP5868592B2 JP 5868592 B2 JP5868592 B2 JP 5868592B2 JP 2010504088 A JP2010504088 A JP 2010504088A JP 2010504088 A JP2010504088 A JP 2010504088A JP 5868592 B2 JP5868592 B2 JP 5868592B2
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- keratin
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Description
本出願は、2007年4月17日出願の米国特許仮出願第60/912,265号に対する優先権を主張する。その開示は、参照によりその全文が本明細書に組み込まれる。
本発明は、米国陸軍の契約番号W81XWH−04−1−0105のもと、政府支援を受けて行われた。米国政府は本発明に一定の権利を有する。
本発明は、ケラチンバイオマテリアルおよび生物医学的用途におけるその使用に関する。
あるいは、溶液のpHが約4.2に達するまで酸を1滴ずつ添加することにより、α−ケラトースを抽出溶液から単離する。好ましい酸としては、硫酸、塩酸、および酢酸が挙げられる。最も好ましい酸は濃塩酸である。α画分の沈殿はpH6.0前後で始まり、約4.2になるまで続く。分別沈殿を利用して異なる等電性をもつ異なる範囲のタンパク質を単離することができる。固体α−ケラトースは、遠心分離または濾過により回収することができる。
ケラトース画分は、Alexanderおよび共同研究者の方法に基づく方法を用いて得た。しかし、実質的にはこの方法を修正してペプチド結合の加水分解を最小限にした。要するに、地元の理髪店から収集した50グラムの清浄な乾燥した毛髪を、室温にて12時間、1000mLの、2w/v %過酢酸(PAA)水溶液と反応させた。500ミクロンの篩を用いて酸化した毛髪を回収し、多量のDI水ですすぎ、過剰な水を除去した。1000mLの100mM Trizma(登録商標)塩基を用いて、その酸化した毛繊維からケラトースを抽出した。3時間後、毛髪を篩により分離し、塩酸(HCl)を1滴ずつ添加することによりその液体を中和した。1000mLの0.1M Trizma(登録商標)塩基および1000mLのDI水をそれぞれ用いるその後の2回の抽出で、さらなるケラトースを残っている毛髪から抽出した。各回、毛髪を篩で分離し、その液体をHClで中和した。3回全部の抽出物を混合し、遠心分離し、濾過によって残留固形材料を除去した。混合した抽出物を、1KDa公称低分子量カットオフ膜を用いるDI水に対する接線流透析により精製した。溶液を濃縮し、凍結乾燥させて、粗ケラトース粉末を製造した。
いくつかの生体内および生体外研究を行ってケラチンバイオマテリアルの生物活性を実証した。それには、人毛に由来するケラチンタンパク質を使用して、酸化および還元反応を用いて、以下の方法に従って、皮質の三次構造を分解し、可溶性タンパク質を抽出することが含まれた。
ケラチンゲルの止血可能性を中程度に検証する(challenging)動物モデルにおいて評価した。ケラチンゲルは未分画のケラテイン(α+γ)を含んだ。肝臓損傷は、肝臓のサイズも創傷のサイズも増大するため、解決の難しいことで有名である。このウサギモデルは、大量および致死性の出血の両方を作り出すことができる。制御された肝臓の切離を、処置されない場合(陰性対照)であれば瀉血をもたらすが、慣習的な止血剤が適用されると(陽性対照)被験動物の回復をもたらす、一貫した一組の条件を確立する手段として使用した。注目すべきは、この実験で陽性対照として用いた止血剤が局所創傷に適応され、同時に圧することを必要とすることである。止血剤は、この実験では圧迫せずに適用された。これは、ケラチンゲルとともに使用されなかったときに圧迫によって加わる寄与が交絡することを避けるために行われた。
Claims (33)
- 創傷の治療法を実施するためのヒドロゲル含有組成物であって、前記ヒドロゲルが、ケラトースを含み、
前記ケラトースは、少なくとも80質量%の塩基性αケラトースまたは酸性αケラトースを含み、前記塩基性または酸性αケラトースは平均分子量が30kDa〜200kDaである、組成物。 - 前記ヒドロゲルが、ケラトースから本質的になる請求項1に記載の組成物。
- 前記ヒドロゲルが、ケラテインをさらに含む請求項1に記載の組成物。
- 前記組成物が、鎮痛薬、抗菌剤、および付加的な創傷治癒剤からなる群から選択される少なくとも1種類の付加的な有効成分をさらに含む請求項1に記載の組成物。
- 前記組成物が、前記ケラトースを含むヒドロゲルおよび付加的な有効成分から本質的になり、前記付加的な有効成分が抗菌剤である請求項4に記載の組成物。
- 前記付加的な有効成分が、バシトラシン、硫酸ポリミキシンB、ネオマイシン、硫酸ポリミキシンBおよびバシトラシンの混合物、ネオマイシン、バシトラシンおよび硫酸ポリミキシンBの混合物、ポビドンヨード、スルファジアジン銀、酢酸マフェニド、ナイスタチン、ニトロフラゾンならびにゲンタマイシンからなる群から選択される抗菌剤である請求項4または5に記載の組成物。
- 前記創傷が、熱傷、擦過傷、裂傷、切開、褥瘡、穿刺創、貫通創、銃創および圧挫損傷からなる群から選択される請求項1〜6のいずれか一項に記載の組成物。
- 前記ヒドロゲルが、αケラトースから本質的になる請求項2に記載の組成物。
- 前記ヒドロゲルが、酸性αケラトースから本質的になる請求項8に記載の組成物。
- 前記ヒドロゲルが、塩基性αケラトースから本質的になる請求項8に記載の組成物。
- 前記ケラトースが、ヒドロゲルとして再構成するために粉末形態で、水性担体中に提供される請求項1〜10のいずれか一項に記載の組成物。
- 前記組成物が、軟膏またはクリームとして提供される請求項1〜10のいずれか一項に記載の組成物。
- 前記組成物が、局所適用される請求項1〜12のいずれか一項に記載の組成物。
- 前記ヒドロゲルが、前記組成物を前記被験体の体内に注射することにより適用される請求項1〜12のいずれか一項に記載の組成物。
- 前記組成物が、創傷変化を阻害するため、創傷閉鎖を促進するため、または創傷変化を阻害し、かつ創傷閉鎖を促進するために有効な量で、前記創傷に適用される請求項1〜14のいずれか一項に記載の組成物。
- 前記創傷が、熱傷創である請求項15に記載の組成物。
- 前記酸性αケラトースが、酸性および塩基性αケラトースを含む混合物をイオン交換クロマトグラフィーにより分画するプロセスによって製造される請求項9に記載の組成物。
- 固体の、生理学的に許容される支持体と、
前記支持体上のケラチン誘導体を含む組成物を含み、
前記ケラチン誘導体が、少なくとも80重量%の酸性αケラトースであり、前記ケラトースの平均分子量が30kDa〜200kDaである外科用または救急医療用補助具。 - 前記支持体が、スポンジ、パッキング、創傷被覆材、縫合糸、織物、および補綴材からなる群から選択される請求項18に記載の外科用または救急医療用補助具。
- 前記外科用または救急医療用補助具が滅菌され、かつ、前記外科用または救急医療用補助具が、滅菌容器に包装されている請求項18または19に記載の外科用または救急医療用補助具。
- 前記ケラチン誘導体が、少なくとも80重量%の酸性αケラトースである請求項18〜20のいずれか一項に記載の外科用または救急医療用補助具。
- 前記ケラチン誘導体が、酸性αケラトースから本質的になる請求項21に記載の外科用または救急医療用補助具。
- 前記酸性αケラトースが、酸性および塩基性αケラトースを含む混合物をイオン交換クロマトグラフィーにより分画するプロセスによって製造される請求項22記載の外科用または救急医療用補助具。
- a)ケラチン誘導体を含む、創傷の治療法を実施するための組成物、および
b)容器
を含むキットであって、前記容器の中に前記ケラチン誘導体が滅菌形態で包装され、前記ケラチン誘導体が、少なくとも80重量%の酸性αケラトースであり、前記ケラトースの平均分子量が10kDa〜200kDaであるキット。 - 前記ケラチン誘導体が、水和形態または脱水形態で提供される請求項24に記載のキット。
- 前記容器が箔容器を含む請求項24または25に記載のキット。
- 前記容器が真空包装されている請求項24〜26のいずれか一項に記載のキット。
- 前記ケラチン誘導体が単一の単位用量を含む請求項24〜27のいずれか一項に記載のキット。
- 前記ケラチン誘導体が、0.5〜200グラムの脱水ケラトースを含む請求項24〜28のいずれか一項に記載のキット。
- 前記ケラチン誘導体が、0.5〜200ミリリットルの水和ケラトースを含む請求項24〜28のいずれか一項に記載のキット。
- 生理学的に許容される支持体をさらに含む請求項24〜30のいずれか一項に記載のキット。
- 前記支持体が滅菌され、かつ前記支持体が前記容器に滅菌形態で包装されている請求項31に記載のキット。
- 前記支持体が、スポンジ、パッキング、創傷被覆材、縫合糸、織物、および補綴材からなる群から選択される請求項31または32に記載のキット。
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US91226507P | 2007-04-17 | 2007-04-17 | |
US60/912,265 | 2007-04-17 | ||
PCT/US2008/004984 WO2008130607A2 (en) | 2007-04-17 | 2008-04-17 | Wound healing compositions containing keratin biomaterials |
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JP2010524943A JP2010524943A (ja) | 2010-07-22 |
JP5868592B2 true JP5868592B2 (ja) | 2016-02-24 |
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JP2010504088A Active JP5868592B2 (ja) | 2007-04-17 | 2008-04-17 | ケラチンバイオマテリアルを含有する創傷治癒組成物 |
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EP (1) | EP2146738A2 (ja) |
JP (1) | JP5868592B2 (ja) |
CN (1) | CN101730540A (ja) |
AU (1) | AU2008241396B2 (ja) |
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AU2011222540B2 (en) * | 2010-03-05 | 2016-09-29 | Wake Forest University Health Sciences | Controlled delivery system |
AU2011329839B2 (en) | 2010-11-17 | 2016-12-08 | Wake Forest University Health Sciences | Keratin compositions for treatment of bone deficiency or injury |
EP2744820B1 (en) | 2011-08-17 | 2018-07-25 | Keranetics LLC | Methods for extracting keratin proteins |
US9700631B2 (en) | 2011-08-17 | 2017-07-11 | KeraNetics, LLC | Low protein percentage gelling compositions |
US9827245B2 (en) | 2013-03-15 | 2017-11-28 | KeraNetics, LLC | Keratin compositions comprising halofuginone |
US11273118B2 (en) | 2014-06-04 | 2022-03-15 | Zim Biosciences, Inc. | Compositions and methods for improving skin quality |
JP6637241B2 (ja) * | 2015-03-02 | 2020-01-29 | アドバンス株式会社 | 可溶性ケラテインの製造法 |
CN106473945A (zh) * | 2016-07-21 | 2017-03-08 | 北京东方艾美生物技术股份有限公司 | 一种角蛋白面膜的制备方法 |
WO2018220739A1 (ja) * | 2017-05-31 | 2018-12-06 | 株式会社リトル・サイエンティスト | 高収率で得られるケラチン誘導体とその使用方法 |
CN112724227B (zh) * | 2019-10-28 | 2023-09-26 | 中国医学科学院药物研究所 | 一种角蛋白bd-1、制法和其药物组合物与用途 |
CN112794894B (zh) * | 2019-10-28 | 2023-09-26 | 中国医学科学院药物研究所 | 一种角蛋白bd-17、制法和其药物组合物与用途 |
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CA1213520A (en) * | 1982-03-17 | 1986-11-04 | Abe Widra | Hydrophilic biopolymeric copolyelectrolytes, and biodegradable dressings comprising same |
US4570629A (en) * | 1982-03-17 | 1986-02-18 | University Of Illinois Foundation | Hydrophilic biopolymeric copolyelectrolytes, and biodegradable wound dressing comprising same |
FR2661414B1 (fr) * | 1990-04-25 | 1995-03-24 | Michel Jean Pierre | Produit a base de keratines modifiees, son procede de preparation et les applications notamment en medecine humaine ou veterinaire. |
US6270791B1 (en) * | 1999-06-11 | 2001-08-07 | Keraplast Technologies, Ltd. | Soluble keratin peptide |
US6544548B1 (en) * | 1999-09-13 | 2003-04-08 | Keraplast Technologies, Ltd. | Keratin-based powders and hydrogel for pharmaceutical applications |
US6371984B1 (en) * | 1999-09-13 | 2002-04-16 | Keraplast Technologies, Ltd. | Implantable prosthetic or tissue expanding device |
US6270793B1 (en) * | 1999-09-13 | 2001-08-07 | Keraplast Technologies, Ltd. | Absorbent keratin wound dressing |
EP1478328B1 (en) * | 2002-01-28 | 2013-06-05 | Keraplast Technologies Ltd. | Bioactive keratin peptides |
NZ536159A (en) * | 2002-04-10 | 2006-05-26 | Keraplast Tech Ltd | Tissue defect dressings comprising a keratin network |
US9149566B2 (en) * | 2006-02-17 | 2015-10-06 | Wake Forest University Health Sciences | Coatings and biomedical implants formed from keratin biomaterials |
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2008
- 2008-04-17 CA CA2683015A patent/CA2683015C/en active Active
- 2008-04-17 AU AU2008241396A patent/AU2008241396B2/en not_active Ceased
- 2008-04-17 EP EP08743024A patent/EP2146738A2/en not_active Withdrawn
- 2008-04-17 CN CN200880020599A patent/CN101730540A/zh active Pending
- 2008-04-17 WO PCT/US2008/004984 patent/WO2008130607A2/en active Application Filing
- 2008-04-17 JP JP2010504088A patent/JP5868592B2/ja active Active
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WO2008130607A3 (en) | 2009-02-26 |
CA2683015C (en) | 2016-11-08 |
CN101730540A (zh) | 2010-06-09 |
AU2008241396B2 (en) | 2014-06-19 |
AU2008241396A1 (en) | 2008-10-30 |
JP2010524943A (ja) | 2010-07-22 |
EP2146738A2 (en) | 2010-01-27 |
CA2683015A1 (en) | 2008-10-30 |
WO2008130607A2 (en) | 2008-10-30 |
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