JP2007099747A - トリインフルエンザ感染の治療 - Google Patents
トリインフルエンザ感染の治療 Download PDFInfo
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- JP2007099747A JP2007099747A JP2006017361A JP2006017361A JP2007099747A JP 2007099747 A JP2007099747 A JP 2007099747A JP 2006017361 A JP2006017361 A JP 2006017361A JP 2006017361 A JP2006017361 A JP 2006017361A JP 2007099747 A JP2007099747 A JP 2007099747A
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Abstract
【解決手段】インフルエンザウイルスの影響が、dsRNAによりインフルエンザウイルスノイラミニダーゼ阻害剤と併用することにより緩和される。これら二つの生成物、dsRNAとα−インターフェロンは、防御的に(予防的に)投与され、又は発症した疾病の治療において、治療上有用である。免疫「カスケード」を通して作動するこれら独特の免疫/抗ウイルス作用が、一般に入手し得る薬剤に対する耐性をもたらすことによって死亡率を大いに促進する、ウイルス突然変異による致死的影響を改善する。例えば、1918−1920において、トリインフルエンザは世界中で凡そ4千万人を死に追いやった(National Geographic,Sept.2005、参照)。
【選択図】図1
Description
r(I)・r(C4,U)
r(I)・r(C7,U)
r(I)・r(C13,U)
r(I)・r(C22,U)
r(I)・r(C20,G)及び
r(I)・r(Cp・23,G>p)
を包含する。
表1と表2は、ベロ細胞において、インフルエンザA(H5N1)ウイルスに対してAlferon N(登録商標)をリバビリンと併用して検定した二つの実験の結果を示すものである。本検定操作には、細胞をインターフェロン誘導状態に活性化するために、ウイルスに暴露する前に、細胞と化合物を18時間前培養すること(用量の半対数増大)が含まれた。新たなAlferon N(登録商標)、リバビリン、或いは両者が共に使用されて、ウイルス感染の際に再び添加された。ウイルス混合物を三日間培養後、目視検査を用いてウイルスによって引き起こされた細胞破壊(細胞変性効果(CPE))の程度を評価した。
Ampligen(登録商標)及びオセルタミビルカルボン酸塩のインフルエンザウイルスに対する影響が検討されて、これら二つの製品の細胞変性効果が個々に決定された。Ampligen(登録商標)及びオセルタミビルカルボン酸塩が、MDCK(イヌ細胞)の細胞培養において、インフルエンザA/Duck/MN/1525/81ウイルスに対して検討された。これらの化合物はウイルスを添加する前に細胞と18時間前培養された。新たな化合物がウイルス添加時に使用された。図1に示すように、活性領域が1から32g/mlのAmpligen(登録商標)処理に対して観察され、この領域において、あるマイクロウエルの細胞は保護されたが他のウエルの細胞は保護されなかった。図2に示されるように、オセルタミビルカルボン酸塩は、0.032μg/mlにまで濃度を下げても活性であった。
本実施例において、Ampligen(登録商標)が、MDCK細胞におけるインフルエンザ(トリインフルエンザ)A/Duck/MN/1525/81ウイルスの感染に対するオセルタミビルカルボン酸塩(TAMIFLU)との併用における効果について検討された。本検定操作には、細胞をインターフェロン誘導状態に活性化するために、ウイルスに暴露する前に、細胞と化合物を18時間前培養すること(用量の半対数増大)が含まれた。Ampligen(登録商標)、オセルタミビルカルボン酸塩、或いは両者を共に使用して含む新たな培地が感染の際に再び添加された。ウイルスと化合物を三日間培養後、目視法ならびにニュートラルレッド染色法を用いてウイルスによって引き起こされた細胞破壊の程度を評価した。
Claims (13)
- トリインフルエンザ又はトリインフルエンザに全般的にもしくは部分的に類似する共通のウイルス複製機構もしくは病原性機構を有するトリインフルエンザ以外の感受性ウイルスの感染治療用の薬物を調製するためのα−インターフェロンとリバビリン、及び/又はノイラミニダーゼ阻害剤の使用。
- トリインフルエンザ治療用の薬物を調製するための天然のヒトα−インターフェロン、リバビリン、dsRNA及びノイラミニダーゼ阻害剤の使用であって、前記薬物は調整された方法で投与されることを特徴とする使用。
- 請求項2に記載の使用であって、前記dsRNAは、rIn・r(C12U)n、ポリA・ポリU又はrIn・r(C29,U)nであり、rはリボ核酸であることを示すものである使用。
- 請求項1又は2に記載の使用であって、前記インターフェロンは、被験者の体重1ポンド当り少なくとも3国際単位の用量で、経口、経鼻、静脈内、筋肉内、又は皮下投与されることを特徴とする使用。
- 請求項2に記載の使用であって、前記dsRNAが、経口、経鼻、静脈内、筋肉内、又は皮下投与されることを特徴とする使用。
- トリインフルエンザ又はトリインフルエンザに全般的にもしくは部分的に類似する共通のウイルス複製機構もしくは病原性機構を有するトリインフルエンザ以外の感受性ウイルスの感染の影響を緩和、又はそれらに対する抵抗性を付与するための薬物を調製するための天然のヒトα−インターフェロンと、リバビリン、又はより新しいノイラミニダーゼ阻害剤のような化学療法剤との併用であって、被験者のトリインフルエンザへの暴露前に、又はトリインフルエンザへの暴露直後ではあるが発症前に併用することからなることを特徴とする使用。
- トリインフルエンザ又はトリインフルエンザに全般的にもしくは部分的に類似する共通のウイルス複製機構もしくは病原性機構を有するトリインフルエンザ以外の感受性ウイルスの感染の影響を緩和、又はそれらに対する抵抗性を付与するための薬物を調製するための天然のヒトα−インターフェロンと、リバビリン及びdsRNAとの併用であって、被験者のトリインフルエンザへの暴露前に、又はトリインフルエンザへの暴露直後ではあるが発症前に併用することを特徴とする使用。
- 請求項6又は7に記載の使用であって、前記インターフェロンが、被験者の体重1ポンド当り少なくとも3国際単位の用量で、経口、経鼻、静脈内、筋肉内、又は皮下投与されることを特徴とする使用。
- 請求項7に記載の使用であって、前記dsRNAが経口、経鼻、静脈内、筋肉内、又は皮下投与されることを特徴とする使用。
- インフルエンザの影響を緩和し、又はインフルエンザに対する抵抗性を付与するための薬物を調製するためのdsRNAと、インフルエンザウイルスノイラミニダーゼ阻害剤とを併用する使用であって、被験者のインフルエンザへの暴露前に、又はインフルエンザへの暴露直後ではあるが発症前に併用することを特徴とする使用。
- トリインフルエンザ又はトリインフルエンザに全般的にもしくは部分的に類似する共通のウイルス複製機構もしくは病原性機構を有するトリインフルエンザ以外の感受性ウイルスの感染の影響を緩和し、又はそれらに対する抵抗性を付与するための薬物を調製するためのdsRNAと、インフルエンザウイルスノイラミニダーゼ阻害剤とを併用する使用であって、被験者のトリインフルエンザへの暴露前に、又はトリインフルエンザへの暴露直後ではあるが発症前に被験者に投与することを特徴とする使用。
- 請求項10又は11に記載の使用であって、dsRNAはrIn・r(C12U)n、ポリA・ポリU又はrIn・r(C29,G)nであり、rはリボ核酸であることを示すものである使用。
- 請求項10又は11に記載の使用であって、前記ノイラミニダーゼ阻害剤がオセルタミビル、ザナミビル、アマンタジン、リマンタジン又はそれらの薬学的に許容される塩であることを特徴とする使用。
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