JP2008514316A - 非接着性の弾性ゼラチンマトリックス - Google Patents
非接着性の弾性ゼラチンマトリックス Download PDFInfo
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- JP2008514316A JP2008514316A JP2007533836A JP2007533836A JP2008514316A JP 2008514316 A JP2008514316 A JP 2008514316A JP 2007533836 A JP2007533836 A JP 2007533836A JP 2007533836 A JP2007533836 A JP 2007533836A JP 2008514316 A JP2008514316 A JP 2008514316A
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/42—Proteins; Polypeptides; Degradation products thereof; Derivatives thereof, e.g. albumin, gelatin or zein
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
Description
(a)タンパク質溶液を加熱するステップと、
(b)1つまたは複数の生体適合性ポリマーを(a)に加えるステップと、
(c)少なくとも1つの架橋剤を(b)に加えるステップと、
(d)(c)を冷却し、凍結乾燥するステップとを含む方法である。
範囲を限定する意図を有するものではなく、以下の実施例は、本発明の様々な実施形態を例示する役割を有する。
ゼラチンは、Vyse Gelatin Company(5010 North Rose St., Schiller Park, IL60176)から購入した。ゼラチン(300Bloom)は、ブタ源:動物の皮膚、白色連結組織、および骨から誘導されたコラーゲンを部分的に加水分解することにより得られ、加工処理されて医薬級のゼラチンが生成した。Macrocystis pyriferaからのアルギン酸ナトリウム(ナトリウム塩)(高粘度であり、25℃の2%溶液で約14,000cps)は、Sigma Co. (St. Louis, MO)から購入した。ポリエチレングリコール(平均Mn=3,400)、1-[3-(ジメチルアミノ)プロピル]-3-エチルカルボジイミド塩酸(EDC)、およびN-ヒドロキシスクシンイミド(NHS)、および乳酸銀は、Aldrich Co. (Milwaukee, WI53201)から購入した。
(ゼラチン+アルギネート+PEG3400)包帯
原料溶液:
ゼラチン: 20%(w/v)
アルギネート: 3.12%(w/v)
PEG3400: 63%(w/v)
EDC/NHS: それぞれ、40%(w/v)および6%(w/v)、(モル比:4/1)
ゼラチン: 10%(w/w)
アルギネート: 1.1%(w/w)
PEG: 7.2%(w/w)
ゼラチン溶液(100mL)とアルギネート溶液(71.2mL)を混合して、55℃で30分間インキュベートした。次いで、PEG3400溶液30mLを加えて、混合した。その後、新鮮なEDC/NHS溶液5mLを30秒間の混合中に上記混合物に加えた。ゲル約200mlを型内に注ぎ、室温で10分間保持し、続いて4℃で30分間冷却した。マトリックスを終夜水中で洗浄してPEGや架橋剤などの可溶性成分を除去した。最後に、マトリックスを凍結乾燥した。通常、ゲル混合物0.32mLから1cm2のマトリックス表面積が得られる。
(ゼラチン+アルギネート+PEG3400+グリセロール)包帯
原料溶液:
ゼラチン: 20%(w/v)
アルギネート: 3.12%(w/v)
PEG3400: 63%(w/v)
EDC/NHS: それぞれ、40%(w/v)および6%(w/v)、(モル比:4/1)
グリセロール: 10%(w/v)
ゼラチン: 10%(w/w)
アルギネート: 1.1%(w/w)
PEG: 7.2%(w/w)
ポリ-リジン: 0.1%(w/w)
ゼラチン溶液(100mL)とアルギネート溶液(71.2mL)を混合して、55℃で30分間インキュベートした。次いで、PEG3400溶液30mLを加えて、混合した。その後、新鮮なEDC/NHS溶液5mLを30秒間の混合中に上記混合物に加えた。ゲル約200mlを型内に注ぎ、室温で10分間保持し、続いて4℃で30分間冷却した。マトリックスを終夜水中で洗浄してPEGや架橋剤などの可溶性成分を除去した。通常、ゲル混合物0.32mLから1cm2のマトリックス表面積が得られる。マトリックスを10%グリセロール2.85L(ゲル1cm2につきグリセロール4.4ml)中に浸漬した。最後に、マトリックスを凍結乾燥した。
(ゼラチン+アルギネート+PEG3400+ポリ-L-リジン)包帯
原料溶液:
ゼラチン: 20%(w/v)
アルギネート: 3.12%(w/v)
PEG3400: 63%(w/v)
ポリ-L-リジン: 2%(w/v)
EDC/NHS: それぞれ、40%(w/v)および6%(w/v)、(モル比:4/1)
ゼラチン: 10%(w/w)
アルギネート: 1.1%(w/w)
PEG: 7.2%(w/w)
ポリ-リジン: 0.1%(w/w)
ゼラチン溶液とアルギネート溶液をこれまでの実施例と同様に混合した。次いで、2%ポリ-L-リジン10mlを混合しながら加えた。30mlのPEG3400を混合物に加えて混合した。最終マトリックスを得るための残りの手順は、これまでの実施例と同一であった。
(ゼラチン+アルギネート+PEG3400+ポリ-L-リジン+グリセロール)包帯
原料溶液:
ゼラチン: 20%(w/v)
アルギネート: 3.12%(w/v)
PEG3400: 63%(w/v)
ポリ-L-リジン: 2%(w/v)
EDC/NHS: それぞれ、40%(w/v)および6%(w/v)、(モル比:4/1)
グリセロール: 10%(w/v)
ゼラチン: 10%(w/w)
アルギネート: 1.1%(w/w)
PEG: 7.2%(w/w)
ポリ-L-リジン: 0.1%(w/w)
ゼラチン溶液とアルギネート溶液をこれまでの実施例と同様に混合した。次いで、2%ポリ-L-リジン10mlを混合しながら加えた。30mlのPEG3400を混合物に加えて混合した。水和および洗浄マトリックスを得るための残りの手順は、これまでの実施例と同一であった。最後に、マトリックスを10%グリセロール2.85L(ゲル1cm2につきグリセロール4.4ml)中に浸漬し、次いで凍結乾燥した。
(ゼラチン+アルギネート)包帯
原料溶液:
ゼラチン: 1%(w/v)
アルギネート: 1%(w/v)
EDC/NHS: それぞれ、40%(w/v)および6%(w/v)、(モル比:4/1)
ゼラチン: 0.9%(w/w)
アルギネート: 0.1%(w/w)
ゼラチン溶液(180mL)とアルギネート溶液(20mL)を混合して、55℃で30分間インキュベートした。その後、新鮮なEDC/NHS溶液1.4mlを1分間の混合中に上記混合物に加えた。混合物を型内に注ぎ(面積20cm2につき10ml)、次いで-20℃で終夜凍結した。最後に、マトリックスを凍結乾燥した。
ゼラチンスポンジのコラゲナーゼによる生体外分解
細菌性コラゲナーゼを使用して、架橋ゼラチン系材料の分解を調査した。本調査で使用されたコラゲナーゼは、Clostridium(EC 3.4.24.3)からのものであり、活性が362U/mg固体であった。試料(50mg)は、0.005M CaCl2および0.05mg/mLアジ化ナトリウムを含む0.1Mトリス-HCL緩衝液中(pH=7.4)で濃度15.35U/mgを有するコラゲナーゼ溶液10ml中37℃でインキュベートした。各インキュベーション間隔の後、試料を脱イオン水で注意深く3回洗浄し、終夜凍結乾燥した。分解度を、分解後残っている重量%として表した。
水取込み能力の決定
包帯の水取込み能力を求めるために、約40mgの包帯を20mlガラスビン中に入れ、水またはPBS(0.01M、pH=7.4)15mlを加えた。室温で5分間水和した後、試料の重量を測定し、次いで37℃で4時間および24時間インキュベートした。試料の重量を両方のインキュベーション間隔で測定した。水取込み能力は、乾燥包帯に対する吸収水の重量比で表される(表2)。特に可塑剤のないマトリックスは、全て非常に吸収性が大きく、約24時間でそれ自体の最大約30〜35倍の重量の水を吸収できる。
水に対する溶解度の決定
包帯の水に対する溶解度を求めるために、既知の重量を有する試料をガラスビン内に置き、水15mlを加えた。これを40℃で24時間インキュベートし、次いで水を除去し、試料を2回水で洗浄した。次いで、恒量まで100℃のオーブンで乾燥し、次いで再秤量した。水に対する溶解度は、通常、水処理後失われた量のパーセンテージで表される(表3)。マトリックスは、良好な水に対する溶解度を示したが、これにより臨床で長寿命であることが示された。より低い溶解度は、体温でのより安定なマトリックスをもたらした。したがって、こうしたマトリックスは、例えば1枚のシートとして24時間以上経過しても患者に与える不快感が最小で創傷から除去できる。マトリックスは全て良好な安定性を示したが、可塑剤のないものはもっと安定であった。
機械特性の決定
0.01M、pH=7.4のPBS緩衝溶液中に室温で1時間浸漬しておいた水和ゼラチンマトリックス(4.5cm×1cm)を破壊した時の引張り強度および伸びを求めて機械特性を決定した。0.5kgロードセルを延伸速度5mm/minで使用した(表4)。この実施例は、マトリックスの引張り強度および弾性を、マトリックス成分の量の変更および組合せにより調整できることを示す。これは、人工皮膚や創傷包帯など、様々な臨床用途のためのマトリックスを提供する上で重要である。
シロリムスのゼラチン系包帯への添加
実施例1〜5は、組織および器官の表面へ送達するための、抗増殖および抗炎症薬物シロリムス(ラパマイシン)などの様々な薬物用のキャリアとして使用できるレンジ材料の製造を対象とする。この実施例では薬物シロリムスを使用するが、他の薬剤を単独または組合せで使用して組織および器官の表面へ送達できることに留意されたい。
ゼラチン: 水に対して1%
アルギネート: 0.05N NaOHに対して1%
EDC/NHS:10mM Mes生理食塩水(pH=4.5)1mlあたり400mg/60mg
グリセロール: 1%(水中)
ゼラチン: 0.9%(w/v)
アルギネート:0.1%(w/v)
水
原料溶液の調製
溶液1:ゼラチン2gを水180mlに加えた;ゼラチンが水中で完全に水和した後、混合物を50℃でインキュベートしてゼラチンを溶解した。
溶液2:アルギネート0.2gを0.05N NaOH20ml中に加え、50℃でインキュベートしてアルギネートを溶解した。
溶液3:EDC400mg+NHS60mgを10mM Mes生理食塩水(pH=4.5)1ml中に加えた。
溶液4:グリセロール2gを水200ml中に加えた。
1.溶液1および溶液2を混合し、55℃で30分間インキュベートした。その後、新鮮なEDC/NHS溶液1.379mlを1分間攪拌しながら混合物に加えた。この混合物を型中に注ぎ(20cm2につき9ml)、次いで-20℃で終夜凍結した。
2.架橋ゲルをマトリックスあたり500mlのMilli-Q水で4回洗浄した(1時間ごとに新鮮な水);このマトリックスを室温で再凍結し、ゲル20cm2あたり1%グリセロール9ml中に浸漬した。次いで-20℃で再凍結し、凍結乾燥した。このマトリックスを薄いフィルムとして調製することもできる。
手順
1.試料の調製
1)1つのマトリックスを等しい3片に切断した。
2)薬物1mgをエタノール90μl中に溶解した。
3)薬物溶液30μlをステップ1の各マトリックス片中に加えた。
4)エタノールを蒸発させた。
2.薬物放出調査
1)15ml Falcon管中に試料を入れた。
2)各管にPBS(10mM、pH=7)5mlを加えた。
3)管を37℃で10日間インキュベートした。
4)3時間、1日、3日、5日、7日、9日の間隔で試料2.5mlを取り出し、取り出した試料の代わりに新鮮なPBS2.5mlで置き換えた。
5)試料をHPLC分析した。
カラム:Hypersil ODS、100×2.1mm
流速:0.2ml/分
検出:UV、278nm
移動相:600mlアセトニトリルおよび水400ml
温度:50℃
注射容積:10μl
シロリムス標準液:0μg/ml、1μg/ml、2.5μg/ml、5μg/ml、10μg/ml
分析:各試料を分析のために2回注射した。
各データの点は、6回の反復試験の平均である。
Claims (45)
1つまたは複数の生体適合性ポリマーと、
1つまたは複数の架橋剤と
を含み、実質的に非接着性であることを特徴とする弾性タンパク質マトリックス。
1つまたは複数の生体適合性ポリマーと、
1つまたは複数の架橋剤と、
溶媒と、
任意選択の可塑剤と
の混合物を含むことを特徴とする弾性ゼラチンマトリックス組成物。
少なくとも1つのタンパク質と、少なくとも1つの生体適合性ポリマーと、少なくとも1つの架橋剤とを含む凍結溶液を、溶媒を実質的に除去するのに有効な時間凍結乾燥するステップ
を含むことを特徴とする方法。
(a)コラーゲンおよび/またはゼラチンを含むタンパク質溶液を加熱するステップと、
(b)1つまたは複数の生体適合性ポリマーを(a)に加えるステップと、
(c)少なくとも1つの架橋剤を(b)に加えるステップと、
(d)(c)を冷却し、凍結乾燥するステップと
を含むことを特徴とする方法。
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US61441404P | 2004-09-30 | 2004-09-30 | |
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PCT/CA2005/000925 WO2006034568A1 (en) | 2004-09-30 | 2005-06-15 | Non-adhesive elastic gelatin matrices |
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EP (1) | EP1793872B1 (ja) |
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CA (1) | CA2580357C (ja) |
DK (1) | DK1793872T3 (ja) |
EA (2) | EA016776B9 (ja) |
ES (1) | ES2581558T3 (ja) |
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WO2010106943A1 (ja) * | 2009-03-18 | 2010-09-23 | 有限会社ナイセム | 柔軟剤及び/又は保湿剤含有生体埋込用医療材料、該医療材料中の柔軟剤及び/又は保湿剤の含有量を調整する方法及び、該生体内埋込用医療材料の製造方法 |
JP2010213984A (ja) * | 2009-03-18 | 2010-09-30 | Naisemu:Kk | 柔軟剤及び/又は保湿剤含有生体埋込用医療材料、該医療材料中の柔軟剤及び/又は保湿剤の含有量を調整する方法及び、該生体内埋込用医療材料の製造方法 |
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JP2015515877A (ja) * | 2012-05-02 | 2015-06-04 | シスタジェニックス ウンド マネージメント イーペー カンパニー ベスローテン ヴェンノーツハップSystagenix Wound Management IP Co B.V. | 創傷ドレッシング |
KR20190009881A (ko) * | 2017-07-19 | 2019-01-30 | 순천향대학교 산학협력단 | 목재 기반 산화 셀룰로오스와 실크 피브로인을 이용한 다공성 지혈제의 제조방법 |
KR102038560B1 (ko) | 2017-07-19 | 2019-11-01 | 순천향대학교 산학협력단 | 목재 기반 산화 셀룰로오스와 실크 피브로인을 이용한 다공성 지혈제의 제조방법 |
JP2022506896A (ja) * | 2018-11-02 | 2022-01-17 | コバロン テクノロジーズ インコーポレイテッド | 発泡体組成物、発泡体マトリックスおよび方法 |
Also Published As
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US8354123B2 (en) | 2013-01-15 |
EA200900997A1 (ru) | 2009-12-30 |
EP1793872A1 (en) | 2007-06-13 |
AU2005289311A1 (en) | 2006-04-06 |
UA88321C2 (ru) | 2009-10-12 |
US20130137780A1 (en) | 2013-05-30 |
US8361501B2 (en) | 2013-01-29 |
US20060068013A1 (en) | 2006-03-30 |
EP1793872A4 (en) | 2011-08-03 |
DK1793872T3 (en) | 2016-07-25 |
WO2006034568A1 (en) | 2006-04-06 |
US20110097402A1 (en) | 2011-04-28 |
AU2005289311B2 (en) | 2011-03-03 |
ES2581558T3 (es) | 2016-09-06 |
EA012609B1 (ru) | 2009-10-30 |
CA2580357C (en) | 2014-01-28 |
EA200700589A1 (ru) | 2007-10-26 |
EA016776B9 (ru) | 2012-11-30 |
NO20071668L (no) | 2007-06-28 |
US8628800B2 (en) | 2014-01-14 |
EP1793872B1 (en) | 2016-05-11 |
JP5047797B2 (ja) | 2012-10-10 |
CA2580357A1 (en) | 2006-04-06 |
US20110311629A1 (en) | 2011-12-22 |
EA016776B1 (ru) | 2012-07-30 |
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