SARS-CoV-2 感染症のグローバル・フォスフォリレーション・ランドスケープ
Mehdi Bouhaddou1, Danish Memon2, Bjoern Meyer3
1QBI COVID-19 Research Group (QCRG), San Francisco, CA 94158, USA; Quantitative Biosciences Institute (QBI), University of California, San Francisco, San Francisco, CA 94158, USA; J. David Gladstone Institutes, San Francisco, CA 94158, USA; Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA.
Cell
|July 10, 2020
まとめ
この研究では,SARS-CoV-2感染が宿主細胞のリン酸化を変化させ,特定のキナーゼを活性化させ,細胞循環停止を引き起こすことを明らかにした. これらのキナーゼを薬剤で標的にすると,新型の重症急性呼吸器症候群コロナウイルス2型治療の開発の可能性が示されます.
科学分野:
- ウイルス学
- 細胞生物学
- 生物化学
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,効果的な抗ウイルス治療法の開発を必要としています.
- ウイルス感染の分子メカニズムを理解することは,治療目標の特定に不可欠です.
研究 の 目的:
- SARS-CoV-2 感染中に宿主およびウイルスタンパク質における世界的なリン酸化変化を調査する.
- COVID-19の潜在的薬物標的と治療化合物を特定する.
主な方法:
- 定量質スペクトロメトリに基づくフォスフォプロテオミクスは,SARS-CoV-2に感染したVero E6細胞を分析するために使用されました.
- 全球リン酸化プロファイルは,調節不良のキナーゼと経路にマッピングされた.
主要な成果:
- SARS-CoV-2 感染症は宿主およびウイルスタンパク質のリン酸化を著しく変えました.
- 主な発見は,カゼインキナーゼII (CK2) とp38MAPKの活性化,サイトカインの産生,細胞サイクル停止です.
- 発芽するウイルス粒子を伴うCK2に富んだフィロポディアス突起が観察されました.
結論:
- 特定のキナーゼ (p38,CK2,CDK,AXL,PIKFYVE) の薬理学的抑制は,SARS-CoV-2に対する抗ウイルス効果を示した.
- これらの発見は,宿主指向キナーゼを標的にすることで,COVID-19の潜在的な治療戦略を強調しています.
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