JP2010531341A - 抗線維素溶解処置のための組成物 - Google Patents
抗線維素溶解処置のための組成物 Download PDFInfo
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Abstract
Description
第一の側面において、本発明は、抗線維素溶解処置のための医薬の調製における、マトリックスメタロプロテイナーゼ-10(MMP-10)を中和する抗体の使用に関する。
− 血管リスクの炎症性バイオマーカーであり得る(Montero I et al.; J. Am. Col. Cardiol., 2006; 47: 1369-1378);(Orbe J et al.; J. Thromb. Haemost.; 2007; 5 : 91-97);
− 3Dコラーゲンマトリックス中の毛細血管を形成する内皮細胞において誘導され、MMP-1の活性化による毛細血管形成の退縮に関与する(Saunders WB et al.; J. Cell Sci., 2005; 118 :2325-2340);および
− 再構築および血管新生過程における血管の完全性を保存する細胞内団結(uniones)の保持において基本的役割を果たす(Chang S et al.; Cell, 2006; 126: 321-334)、
− 創傷の治癒、ケラチノサイトの遊走の増大、およびマトリックスタンパク質のタンパク質分解により起こる組織再編成に関与する(Krampert M, et al.; Mol Biol Cell, 2004; 5242-5254)。
1.−プラスミノーゲン活性化因子の存在下においてでさえも、フィブリン血餅の溶解を減少させるおよび阻止する能力、
2.−フィブリン血餅の形成を変化させない分子であること
によって、医学的および外科的領域における出血の制御において顕著な利点を表し得、ならびに線維素溶解障害に起因する過剰な出血を有する患者における輸血に代わるものとなり得る。
第一に、本発明の文脈において、「抗体」なる用語は、ポリクローナル抗体、モノクローナル抗体、組換え抗体、キメラ(kimeric)抗体、ヒト化抗体および完全ヒト化抗体を含む。
本発明の中和抗体は、抗体を産生するために既に知られている従来法によって産生することができる。限定するものではないが、用いられる方法は以下を含み得る:動物における免疫化技術(ヒトイムノグロブリン遺伝子についてのトランスジェニック動物を含む)、ハイブリドーマによるモノクローナル抗体の産生、抗体ライブラリーによる産生、ここで、ライブラリーは、ネイティブであり得、または合成であり得、または目的の抗原に対して免疫化された生物体に由来し得、そして、提示またはディスプレイ(ファージディスプレイ、リボソームディスプレイなど)の多種の方法によって選択され得、その後遺伝子工学技術によって、種々のサイズ、組成および構造の組換え抗体の産生のために設計されたベクターにおいて再設計され発現され得る。抗体の産生および精製のための主な方法の総説は、以下に見ることができる:
「Handbook of Therapeutic Antibodies(治療的抗体のハンドブック)」、S. Dubel、発行元:Wiley-VCH、2007、第I〜III巻(ISBN 978-3527314539);
「Antibodies: Volume 1: Production and Purification(抗体:第1巻:産生および精製)」、G. Subramanian編、発行元:Springer、第1版、2004(ISBN 978-0306482458);
「Antibodies: Volume 2: Novel Technologies and Therapeutic Use(抗体:第2巻:新技術と治療的使用)」G. Subramanian編、発行元:Springer、第1版、2004(ISBN 978-0306483158);
「Molecular Cloning: a Laboratory manual(分子クローニング:研究室マニュアル)」、J. SambrookおよびD.W. Russelら編、発行元:Cold Spring Harbour Laboratory Press、第3版、2001(ISBN 978-0879695774)。
1.−MMP-10またはMMP-10の免疫原性フラグメントまたはMMP-10もしくは誘導体を含有するプラスミドの溶液によってマウスを免疫化する。
一般に、MMP-10中和抗体(またはそれを含有する医薬)は、抗線維素溶解処置に有用である。
本発明によると、抗線維素溶解処置のための医薬としての医薬組成物の調製において中和抗体を使用する。
マトリックスメタロプロテイナーゼMMP-10およびMMP-3の、直接の、または他のプラスミノーゲン活性化因子:ウロキナーゼ(uPA)および組織プラスミノーゲン活性化因子(tPA)と組み合わせた、線維素溶解性および血栓溶解活性に対する効果を例証する実施例を以下に記載する。
− 組換えMMP-10は、20-30%の48 kDaの成熟酵素を含む58 kDaの酵素前駆体として得(R&D Systems、910-MP、Abingdon、UK)、TCNB緩衝液(50 mMトリス-HCl、pH 7.5、10 mM CaCl2、150 mM NaCl、0.05% Brij35)によって再構成した。
上述のように、MMP-10およびMMP-3の止血系に対する効果を、von dern Borneらにより報告された手順に従って評価した。この方法において、血餅の形成および溶解過程の指標として濁度/吸光度の変化を、両過程について経時的に調べた。濁度の測定は、血餅の形成および溶解段階の間に光度計リーダー、本件の場合ELISAリーダー(Fluostar Optima, BMG Labtech)を用いて405 nmにおける吸光度を読むことにより行った。濁度/吸光度の増加はフィブリン血餅の形成を示し、一方このパラメーターの減少は血餅の溶解を示す。
上述のEdwardの手順に従って、フィブリン溶解に対する効果を、重合フィブリンプラークに対して起こった溶解のハローまたは領域を測定することによって調べた。
実施例1および2の結果による、tPAにより誘導された血餅におけるフィブリン溶解に対するMMP-10の効果の特異性を、種々の用量の活性MMP-10を、その活性を阻止するモノクローナル抗体(R&D Systems、MAB9101、Abingdon、UK)の存在下(1:2の比)および非存在下において、または同じ濃度のネズミIgG2Bアイソタイプ対照(eBioscience、16-4732、San Diego, CA, USA)の存在下および非存在下において、同時に加えることによって分析した。
MMP-10の不在の効果を分析するために、1月齢の17匹のMMP-10ノックアウトマウス(KO)および14匹の野生型マウス(WT)における出血時間を調べた。これらの動物をケタミン(100 mg/kg)およびキシラジン(5 mg/kg)の混合物を腹腔内に用いて麻酔し、37℃にて保温毛布において維持した。尻尾の最後の5 mmをメスで切り、37℃にて0.9%NaCl 1 ml中に浸した。出血の開始から、血液が流れるのが自発的に止まるまでの時間を測定した。また、生理食塩水中に採取した血液の560 nmにおける吸光度によって血液損失量を測定し、その結果を既知の体積のマウス血液により作成した標準曲線と比較した。
出血時間によって、止血についてのイン・ビボにおけるさらなる測定値が得られる。
Claims (7)
- 抗線維素溶解処置に有用な医薬の調製における、マトリックスメタロプロテイナーゼ-10(MMP-10)に対する中和抗体の使用。
- 出血および出血性合併症の処置に有用な医薬の調製における、請求項1に記載の使用。
- 先天性異常に起因する過剰な線維素溶解状態を有する患者における出血および出血性合併症の処置のための医薬の調製における、請求項2に記載の使用。
- 抗血液凝固処置を受けている患者における出血および出血性合併症の処置のための医薬の調製における、請求項2に記載の使用。
- 播種性血管内凝固を有する患者における出血および出血性合併症の処置のための医薬の調製における、請求項2に記載の使用。
- 外科的処置に起因する出血および出血性合併症の処置のための医薬の調製における、請求項2に記載の使用。
- 急性の出血における輸血の代替物としての医薬の調製における、請求項2に記載の使用。
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WO2015107139A1 (en) * | 2014-01-17 | 2015-07-23 | Proyecto De Biomedicina Cima, S.L. | Compounds for use as antifibrinolytic agents |
RU2657756C2 (ru) * | 2016-08-30 | 2018-06-15 | Общество с ограниченной ответственностью "ПРОФИТ ФАРМ" | Способ лечения кровотечений из верхних отделов желудочно-кишечного тракта |
US11654057B2 (en) | 2020-04-09 | 2023-05-23 | Bio 54, Llc | Devices for bleeding reduction and methods of making and using the same |
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