JP2009511455A - 粘膜過粘稠の治療のためのオリゴウロン酸の使用 - Google Patents
粘膜過粘稠の治療のためのオリゴウロン酸の使用 Download PDFInfo
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Abstract
【選択図】なし
Description
本発明は、オリゴウロン酸塩を用いたヒト又はヒト以外の動物、特に哺乳類の治療方法であって、粘膜の上昇した粘性に対処するための治療方法、例えば、とりわけ嚢胞性線維症(CF)、COPD(慢性閉塞性肺疾患)及び副鼻腔炎の治療において、COPDの場合のような呼吸器管、特に鼻腔及び肺からの粘液クリアランスを促進するための治療方法関する。
ムチン−アルギン酸塩ゲルモデルに対する5つのオリゴマー材料;
a)低分子デキストラン(6000Da)
b)低分子量PEG(3350Da)
c)低分子量DNA
d)ガラクツロン酸ナトリウムオリゴマー
e)グルロン酸ナトリウムオリゴマー(Gブロック)
の効果を検査した。
FG 0.87、FM 0.13、FGG 0.83、FGM=FMG 0.05、FMM 0.08、FGGM=FMMG 0.04、FMGM 0.02、FGGG 0.79、DP19。
対照ゲルは、0.05M NaCl中、18mg/mlムチン+0.6mg/mlアルギン酸塩からなるものであった。
検査ゲルは、0.05M NaCl中、18mg/mlムチン+0.6mg/mlアルギン酸塩+4mg/ml試験材料からなるものであった。
ゲル化: サンプルを混合直後に37℃でレオメーターへロードした。温度は10℃(0.5℃/分)まで冷却し、次に18時間10℃で保持した。サンプルの挙動及びゲル化の様子(gel development)を継続的に測定した。
周波数掃引(frequency sweep): ゲル化後にサンプルの温度を37℃まで上げ、レオロジーの挙動を周波数の関数としてモニターした。
応力掃引(stress sweep): 37℃におけるゲルの挙動を増加負荷応力の関数としてモニターした。
この実験は、グルロン酸ナトリウムオリゴマー(Gブロック)が、ムチンアルギン酸塩相互作用におけるアルギン酸塩に取って代わることができることを、ゲル化開始後に経時的にゲルの複素弾性率(complex modulus)(G*)が減少すること示すことで、実証した。5つの検査ゲル及び対照ゲルについての結果を、図1a〜1fにそれぞれ示す。
ゲルはすべて、弱い粘弾性ゲルに典型的な周波数掃引挙動を示した。
応力掃引は、このシステムにおいて流れ(flow)を誘導するために必要とされる応力を決定するために使用した。これは、対照ゲルに流れを誘導するために必要とされる応力の%として図4においてプロットする。これは、加えられた材料がどれほどゲルマトリックスを弱めたかの目安(indication)となる。Gブロック(グルロン酸ナトリウムオリゴマー)が、流動応力に対して最も顕著な効果があり、その次がガラクツロン酸ナトリウムオリゴマーであった。
喀痰(Sputum)に対する効果
喀痰サンプルは、緑膿菌感染について陽性診断された嚢胞性線維症患者から回収された。サンプルを穏やかに撹拌し、小分けにし、冷凍し、−40℃で保存した。
喀痰サンプルを冷凍庫から取り出し、検査の前に冷蔵庫(4℃)中に1時間置き、約10分間磁気撹拌機上で撹拌し、0.5gの小分けにした。検査媒質を、1つのサンプル(純粋な喀痰サンプル)以外のすべてに加えた。生じるサンプルは次のとおりであった。
A:0.5g喀痰(純粋)、
B:0.5g喀痰+65μl 350mM NaCl溶液(加えられたグルロン酸塩オリゴマーのイオン強度)、
C:0.5g喀痰+75μl 150mg/mlグルロン酸ナトリウムオリゴマーDp19、
D:0.5g喀痰+75μl 150mg/mlグルロン酸ナトリウムオリゴマーDp10。
FG 0.79、FM 0.11、FGG 0.76、FGM=FMG 0.03、FMM 0.07、FMGG=FGGM 0.02、FMGM 0.01、FGGG 0.74、FG(red)0.10、FG(tot)0.89、NG>1 37、Dp10。
純粋な喀痰及び混合した喀痰のレオロジーの測定は、タンパク質分解酵素の影響を最小限にするために10℃で、レオロジカ社のストレステック(Rheologica Stress-Tech)多目的レオメーターを使用して、プレート/コーン(40mm/10)に対して実行された。
・定ひずみ0.03及び1Hzの周波数による2分間のひずみ制御の振動。
・0.03の定ひずみ及び1Hzの周波数による60分間の前剪断(20s-1の煎断速度で1分)後のひずみ制御の振動。
・定ひずみ0.03、0.01〜5Hzの範囲の周波数掃引。
・1Hz、0.02〜20Paの範囲の応力掃引。
エアロゾル
噴霧器の補助により投与される無菌のエアゾルスプレーは、少なくとも75%のグルロン酸塩の純度及び5〜20の重合度を有するグルロン酸ブロックのナトリウム塩を3〜10%並びに必要に応じてエアロゾル液滴サイズを安定させる界面活性化合物を含む液体から作製される。
Claims (17)
- 呼吸器管における粘膜の過粘稠(hyperviscosity)に対処するためのヒト対象又は非ヒト対象の治療方法であって、生理学的に許容されるオリゴウロン酸塩を前記対象の前記呼吸器管粘膜表面へ有効量適用することを含む、治療方法。
- 嚢胞性線維症(cystic fibrosis)の治療のための、請求項1に記載の方法。
- 副鼻腔炎(sinusitis)の治療のための、請求項1又は2に記載の方法。
- 慢性閉塞性肺疾患(chronic obstructive pulmonary diseases)の治療のための、請求項1に記載の方法。
- 前記オリゴウロン酸塩が患者の気道へ投与される、請求項1から4のいずれかに記載の方法。
- 前記オリゴウロン酸塩がモノマーとしてグルロン酸を含む、請求項1から5のいずれかに記載の方法。
- 前記オリゴウロン酸塩が4量体〜25量体である、請求項1から6のいずれかに記載の方法。
- 呼吸器管の粘膜過粘稠の治療において使用される医薬品の製造のための、生理学的に許容されるオリゴウロン酸塩の使用。
- 請求項6又は7に定義されるオリゴウロン酸塩の、請求項8に記載の使用。
- 嚢胞性線維症の治療において使用される吸入可能な医薬品の製造のための、請求項8又は9に記載の使用。
- 副鼻腔炎の治療において使用される吸入可能な医薬品の製造のための、請求項8から10のいずれかに記載の使用。
- 慢性閉塞性肺疾患の治療において使用される吸入可能な医薬品の製造のための、請求項8又は9に記載の使用。
- 生理学的に許容される担体又は賦形剤と共に生理学的に許容されるオリゴウロン酸塩を含む、吸入可能な医薬組成物。
- さらに生理学的に許容される粘膜の粘性降下剤を含む、請求項13に記載の組成物。
- 請求項6又は7に定義されるオリゴウロン酸塩を含む、請求項13又は14に記載の組成物。
- DNaseを含む、請求項13から15のいずれかに記載の組成物。
- リザーバ及び液滴ジェネレータを備えるスプレーアプリケータであって、前記リザーバが生理学的に許容されるオリゴウロン酸塩の水溶液を含む、スプレーアプリケータ。
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PCT/GB2006/003720 WO2007039754A1 (en) | 2005-10-06 | 2006-10-06 | Use of oligouronates for treating mucus hyperviscosity |
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JP2017510563A (ja) * | 2014-02-28 | 2017-04-13 | アルギファルマ エーエス | 嚢胞性線維症及び欠陥cftrイオンチャネル機能に関連する他の病態の治療におけるアルギネートオリゴマーの使用 |
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JP2017501221A (ja) * | 2013-12-23 | 2017-01-12 | ノルウェージャン ユニバーシティ オブ サイエンス アンド テクノロジー(エヌティーエヌユー) | がん治療におけるオリゴウロン酸塩の使用 |
JP2017510563A (ja) * | 2014-02-28 | 2017-04-13 | アルギファルマ エーエス | 嚢胞性線維症及び欠陥cftrイオンチャネル機能に関連する他の病態の治療におけるアルギネートオリゴマーの使用 |
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