呼吸器系およびそれ以上のH5N1感染:分子病理学の研究
Jiang Gu1, Zhigang Xie, Zhancheng Gao
1Infectious Disease Centre, Peking University, Beijing, China. jianggu@bjmu.edu.cn
Lancet (London, England)
|October 2, 2007
まとめ
鳥インフルエンザのH5N1ウイルスは,肺だけでなく,脳や気管などの臓器に広がって感染します. この研究では,胎盤経由でH5N1の母から胎児への感染の証拠も見つかりました.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- 病理学 パトロジー
- 感染症 感染症は感染症です.
背景:
- 鳥インフルエンザH5N1は,高死亡率の新興感染症です.
- 人間のH5N1感染は主に呼吸器系の症状を引き起こしますが,他の臓器にも影響を与える可能性があります.
- 以前の研究では,H5N1が肺の外部を標的とする可能性を示唆していた.
研究 の 目的:
- ヒトにおける鳥インフルエンザH5N1ウイルスの肺外伝播を調査する.
- H5N1感染が胎盤の障壁を通過できるかどうかを判断する.
- H5N1.1に感染した特定の臓器や細胞タイプを特定する.
主な方法:
- 2人の成人H5N1患者と胎児の組織を死後の分析.
- ウイルスの成分を検出するために,インサイトハイブリダイゼーションと免疫ヒストケミストリーが実施されます.
- ウイルスのRNA検出のための様々なRT-PCR技術 (RT-PCR,リアルタイムRT-PCR,ストランド特異RT-PCR,NASBA).
主要な成果:
- H5N1ウイルスのゲノム配列と抗体は,肺,気管,脳ニューロン,リンパ節T細胞,胎盤で見つかりました.
- ウイルス配列は検出されたが,抗原は検出されなかった.
- 胎児では,H5N1が肺組織,循環する単核細胞,肝臓マクロファージで確認された.
結論:
- 鳥インフルエンザH5N1ウイルスは気管に感染し,脳を含む肺以外の臓器に拡散します.
- この研究は,H5N1の胎盤経由の母から胎児への潜在的感染の証拠を提供します.
- H5N1は,上皮細胞,神経細胞,胎盤細胞を含む様々な細胞タイプに感染することができます.
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