SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor

  • Cell. 2020 Apr 16;181(2):271-280.e8. doi: 10.1016/j.cell.2020.02.052.
Markus Hoffmann  1 Hannah Kleine-Weber  2 Simon Schroeder  3 Nadine Krüger  4 Tanja Herrler  5 Sandra Erichsen  6 Tobias S Schiergens  7 Georg Herrler  8 Nai-Huei Wu  8 Andreas Nitsche  9 Marcel A Müller  10 Christian Drosten  3 Stefan Pöhlmann  11
Affiliations
  • 1. Infection Biology Unit, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany. Electronic address: [email protected].
  • 2. Infection Biology Unit, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany; Faculty of Biology and Psychology, University Göttingen, Göttingen, Germany.
  • 3. Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, Berlin, Germany; German Centre for Infection Research, associated partner Charité, Berlin, Germany.
  • 4. Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany; Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany.
  • 5. BG Unfallklinik Murnau, Murnau, Germany.
  • 6. Institute for Biomechanics, BG Unfallklinik Murnau, Murnau, Germany; Institute for Biomechanics, Paracelsus Medical University Salzburg, Salzburg, Austria.
  • 7. Biobank of the Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany.
  • 8. Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany.
  • 9. Robert Koch Institute, ZBS 1 Highly Pathogenic Viruses, WHO Collaborating Centre for Emerging Infections and Biological Threats, Berlin, Germany.
  • 10. Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, Berlin, Germany; German Centre for Infection Research, associated partner Charité, Berlin, Germany; Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov University, Moscow, Russia.
  • 11. Infection Biology Unit, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany; Faculty of Biology and Psychology, University Göttingen, Göttingen, Germany. Electronic address: [email protected].
Abstract

The recent emergence of the novel, pathogenic SARS-coronavirus 2 (SARS-CoV-2) in China and its rapid national and international spread pose a global health emergency. Cell entry of coronaviruses depends on binding of the viral spike (S) proteins to cellular receptors and on S protein priming by host cell proteases. Unravelling which cellular factors are used by SARS-CoV-2 for entry might provide insights into viral transmission and reveal therapeutic targets. Here, we demonstrate that SARS-CoV-2 uses the SARS-CoV receptor ACE2 for entry and the serine protease TMPRSS2 for S protein priming. A TMPRSS2 inhibitor approved for clinical use blocked entry and might constitute a treatment option. Finally, we show that the sera from convalescent SARS patients cross-neutralized SARS-2-S-driven entry. Our results reveal important commonalities between SARS-CoV-2 and SARS-CoV Infection and identify a potential target for Antiviral intervention.

Keywords
ACE2; COVID-19; SARS-CoV-2; TMPRSS2; coronavirus; entry; neutralization; priming; spike.