JP7241782B2 - 顎関節変性疾患の治療用の持続放出性組成物およびその方法 - Google Patents
顎関節変性疾患の治療用の持続放出性組成物およびその方法 Download PDFInfo
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Description
本出願は、2018年6月22日に出願された米国特許仮出願第62/688,545号の優先権を主張するものであり、その全内容は参照により本明細書に組み込まれている。
て、スクレロスチンとヒアルロン酸との連結を達成し得る。例えば、遊離のアルデヒド基を有するアミンを含有する架橋剤とヒアルロン酸が反応し、ヒアルロン酸のカルボン酸基とアミド結合を形成し、続いてアセタール基を遊離カルボン酸基に水解し、次いで、シアノボロヒドリド塩を介してスクレロスチンを遊離カルボキシル基に連結することによって、連結を行うことができる。好ましい連結剤は4-アミノブチルアルデヒドージエチルアセタール(4-ABADA)であるが、当技術分野で公知のように、他の適切な連結剤を使用してもよい。例えば、ヅ(Du)らの「バイオマクロモレキュラス(Biomacromolecules)」2014,15,1097-1114に掲載した論文の内容を参照する。シグマ・アルドリッチ(Sigma-Aldrich)社のような科学的な供給会社から適切な架橋剤を容易に購入し得る。
種々の投薬形態のための薬理学的に受容可能なキャリアは当技術分野において既知である。例えば、既知の固体調製物のための賦形剤、潤滑剤、バインダ、および崩壊剤;既知の液体調製物のための溶媒、可溶化剤、懸濁化剤、等張化剤、緩衝剤、および鎮静剤。いくつかの実施形態では、医薬組成物が一つ以上の防腐剤、酸化防止剤、安定化剤などの一つ以上の追加成分を含む。レミントン(Remington)の「薬学の科学及び実践第21版(The Science and Practice of Pharmacy、21st ed)」、リピンコット(2006)(Lippincott(2006))を参照されたく、その内容は参照のため、全体的に本明細書に組み込まれている。
1)高分子量ヒアルロン酸-スクレロスチンハイドロゲルの合成
以下の材料を合成に使用した:高分子量ヒアルロン酸ナトリウム(HA)(平均分子量2000kDa)(ライフバイオメディカ(Life Biomedical)社製、カタログ番号:HA2M)、3%BSA PBS、スクレロスチン(SOST)(R&Dシステム(R&D system)社製、カタログ番号:1406-ST-025/CF)、1mlのシリンジ(BDツベルクリンシリンジ(BD Tuberculin Syringes)社製、14-826-87)、5mlのファルコン丸底プロピレンチューブ(サーモフィッシャーサイエンティフィック(Fisher scientific)社製、カタログ番号:14-959-11A)、インスタント密封滅菌パウチ(フィッシャー ブランド(FisherBrand)、#01-812-54)。
媒介物:0.1mlの3%BSA PBS
SOST:0.1mlの1.5ug/mlSOST.22.5ul×(200ug/ml再構成したSOST)/3ml3%BSA PBS
HMW HA:0.1mlの2%HA(3mlの3%BSA PBS中に0.06gのHMW HAを含む)
HMW HA-SOST:HMW HA中に0.1mlの2ug/mlのSOST(3mlの2ug/mlのSOST中に0.06gのHMW HAを含む)を含む。
スクレロスチン-ヒアルロン酸ヒドロゲルおよびスクレロスチンの放出曲線。前述手順に従って、スクレロスチン(1μg、R&D 1406-ST/CF)を、2%高分子量ヒアルロン酸(HMW HA、2000kDa、ライフバイオメディカ社製)または2%および3%低分子量(LMW HA、500 KDa、ライフバイオメディカ社製)中に混合した。ヒドロゲルを0.4μm孔径のポリエステル膜の挿入物を有する12mmトランズウェル(Transwell(R)、サーモフィッシャーサイエンティフィック社製、07-200-161)上に入れ、37oCで12ウェルプレート中のPBSに培養した。累積放出曲線をプロットするため、製造業者の指示に従って、定量的サンドイッチ酵素結合免疫吸着技術を使用して、示された各時点でスクレロスチンの濃度を測定した。簡単に言うと、標準またはサンプル(100μL)を各ウェルに添加し、37℃で2時間培養し、続いてビオチン化抗ヒトスクレロスチン抗体のいずれかを用いて37℃で1時間一次抗体処理をした。抗体検出のために、100μLのHRP-アビジンを37℃で1時間置いた。洗浄後、TMB基質を各ウェルに添加し、37℃で15-30分間置き、続いて50μLの停止液を添加した。450nmでマイクロプレートリーダーを用いて各ウェルの光学濃度(OD)を測定した。スクレロスチン濃度は、各サンプルのODを標準曲線と比較することによって計算した。
PBSで置き換えた。10μlの各除去されたサンプルを、ELISAキット(サーモフィッシャー社製)からの200μlの希釈緩衝液中で希釈し、スクレロスチンヒトELISAキット(サーモフィッシャー社製)を使用してスクレロスチン含有量を測定した。結果を図8に示し、これは、30日間にわたるスクレロスチン-リンカーヒアルロン酸からのスクレロスチンの持続放出性を示す。
Claims (3)
- 顎関節変性疾患を治療するための組成物であって、スクレロスチンおよび高分子量ヒアルロン酸のヒドロゲルを含み、ここで、ヒアルロン酸の平均分子量は1500±150kDa~4000±400kDaである、組成物。
- 請求項1に記載の組成物において、
前記スクレロスチンの濃度が組成物の5±0.5ng/100μl~1±0.1mg/100μlであり、高分子量ヒアルロン酸の濃度が0.1±0.01wt%~10±1wt%である、組成物。 - 請求項1または2のいずれか1項に記載の組成物において、
前記ヒアルロン酸の平均分子量が2000±200kDaである、組成物。
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