The clinically used serine protease inhibitor nafamostat reduces influenza virus replication and cytokine production in human airway epithelial cells and viral replication in mice

© 2020 Wiley Periodicals LLC..

The effects of the clinically used protease inhibitor nafamostat on influenza virus replication have not been well studied. Primary human tracheal (HTE) and nasal (HNE) epithelial cells were pretreated with nafamostat and infected with the 2009 pandemic [A/Sendai-H/108/2009/(H1N1) pdm09] or seasonal [A/New York/55/2004(H3N2)] influenza virus. Pretreatment with nafamostat reduced the titers of the pandemic and seasonal influenza viruses and the secretion of inflammatory cytokines, including interleukin-6 and tumor necrosis factor-α, in the supernatants of the cells infected with the pandemic influenza virus. HTE and HNE cells exhibited mRNA and/or protein expression of transmembrane protease serine 2 (TMPRSS2), TMPRSS4, and TMPRSS11D. Pretreatment with nafamostat reduced cleavage of the precursor protein HA0 of the pandemic influenza virus into subunit HA1 in HTE cells and reduced the number of acidic endosomes in HTE and HNE cells where influenza virus RNA enters the cytoplasm. Additionally, nafamostat (30 mg/kg/day, intraperitoneal administration) reduced the levels of the pandemic influenza virus [A/Hyogo/YS/2011 (H1N1) pdm09] in mouse lung washes. These findings suggest that nafamostat may inhibit influenza virus replication in human airway epithelial cells and mouse lungs and reduce infection-induced airway inflammation by modulating cytokine production.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:93

Enthalten in:

Journal of medical virology - 93(2021), 6 vom: 01. Juni, Seite 3484-3495

Sprache:

Englisch

Beteiligte Personen:

Yamaya, Mutsuo [VerfasserIn]
Shimotai, Yoshitaka [VerfasserIn]
Ohkawara, Ayako [VerfasserIn]
Bazarragchaa, Enkhbold [VerfasserIn]
Okamatsu, Masatoshi [VerfasserIn]
Sakoda, Yoshihiro [VerfasserIn]
Kida, Hiroshi [VerfasserIn]
Nishimura, Hidekazu [VerfasserIn]

Links:

Volltext

Themen:

Antiviral agents
Benzamidines
Cell cultures
Cytokines
Guanidines
Influenza virus
Journal Article
Nafamostat
Protease inhibitor
Respiratory tract
Serine Proteinase Inhibitors
Y25LQ0H97D

Anmerkungen:

Date Completed 08.10.2021

Date Revised 11.10.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/jmv.26700

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM318140284