免疫不全の男性におけるワクチン由来神経ウイルス性ポリオウイルス感染症の持続的な治癒が失敗した
Calman MacLennan1, Glynis Dunn, Aarnoud P Huissoon
1MRC Centre for Immune Regulation, Division of Immunity and Infection, University of Birmingham, Birmingham, UK. cmaclennan@mlw.medcol.mw
Lancet (London, England)
|May 12, 2004
まとめ
低ガンマグロブリン血症における慢性ポリオウイルスの排泄は,世界的な根絶の取り組みにとって重要な課題となっています. 現在の治療法は無効であり,ワクチン由来ポリオウイルスに対する新しい治療戦略の必要性を強調しています.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- 免疫学 免疫学とは
- 感染症 感染症は感染症です.
背景:
- 神経ウイルス性ポリオウイルスの慢性的な排泄,特にワクチン由来の菌株は,グローバルポリオ根絶プログラムにとって大きな懸念事項です.
- 低ガンマグロブリン血症は,持続的なポリオウイルス感染症の認識された危険因子です.
研究 の 目的:
- 共通変性免疫欠乏症の患者における持続的な神経ウイルス性ポリオウイルス感染をクリアするための治療戦略を調査する.
主な方法:
- 経口免疫グロブリン,母乳,リバビリン,プレコナリルを用いたインビトロおよびインビボ試験を実施した.
- ウイルスの定量測定,抗体中和アッセイ,薬物感受性検査,ウイルス遺伝子配列決定を行いました.
主要な成果:
- ワクチン由来ポリオウイルス2の長期無症状の排泄が (22歳まで) 低ガンマグロブリン血症の男性で確認された.
- ウイルスを治す治療は成功しませんでしたが,母乳は一時的に排泄量を低下させました.
- ウイルスはプレコナリルに対する感受性が低下し,配列分析により重要な変異が明らかになりました.
結論:
- 慢性ワクチン関連ポリオウイルス感染症は,ヒポガマグロブリン血症の治療が困難です.
- この持続的な感染は,ポリオのエンドゲーム戦略とポリオワクチン接種の停止にリスクをもたらします.
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