比較された宿主-コロナウイルスタンパク質の相互作用ネットワークは,汎ウイルス性疾患のメカニズムを明らかにする
David E Gordon1,2,3,4, Joseph Hiatt1,4,5,6,7, Mehdi Bouhaddou1,2,3,4
1Quantitative Biosciences Institute (QBI) COVID-19 Research Group (QCRG), San Francisco, CA 94158, USA.
Science (New York, N.Y.)
|October 16, 2020
まとめ
この研究では,Tom70がSARS-CoV-1およびSARS-CoV-2と相互作用する主要な宿主因子であり,COVID-19の薬の開発に新たな標的を提供していることが明らかになりました. これらのウイルスと人間の相互作用を理解することは,コロナウイルスの拡散と闘うのに役立ちます.
科学分野:
- ウイルス学
- 分子生物学
- 免疫学
背景:
- SARS-CoV-2によって引き起こされるCOVID-19のパンデミックは,世界的な健康と経済的リスクをもたらしています.
- SARS-CoV-2は,SARS-CoV-1およびMERS-CoVと遺伝的および構造的な類似性を共有しており,保存された病原性メカニズムを示唆しています.
研究 の 目的:
- SARS-CoV-1,SARS-CoV-2,およびMERS-CoVにおけるウイルスとヒトのタンパク質の相互作用およびタンパク質の局所化の比較分析を行う.
- 機能的な遺伝子スクリーニングを通じて,コロナウイルスの拡散に不可欠な宿主因子を特定する.
主な方法:
- ウイルスとヒトのタンパク質の相互作用とウイルスタンパク質の局所化の比較分析.
- コロナウイルスの拡散に影響を与える宿主因子を特定するための機能的な遺伝子スクリーニング.
- タンパク質の相互作用の構造的特徴化のための冷凍電子顕微鏡.
主要な成果:
- ミトコンドリアのチャペロンであるTom70は,ウイルスのORF9bタンパク質を通じてSARS-CoV-1およびSARS-CoV-2と相互作用する宿主因子として識別されました.
- Tom70とSARS-CoV-2 ORF9bの相互作用を,冷凍電子顕微鏡を用いて構造的に特徴づけました.
- 潜在的治療戦略を特定するために,COVID-19患者の遺伝子および請求記録と統合された宿主因数データ.
結論:
- Tom70は,SARS-CoV-1とSARS-CoV-2の複製に関与する重要な宿主因である.
- 特定されたウイルスとヒトの相互作用と宿主因子は,新しい抗ウイルス療法の開発の基盤を提供します.
- 特定された薬物治療の可能性を調査するために,さらなる分子および臨床研究が必要である.
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