Testing of the inhibitory effects of loratadine and desloratadine on SARS-CoV-2 spike pseudotyped virus viropexis

Copyright © 2021 Elsevier B.V. All rights reserved..

Currently, there is an urgent need to find a treatment for the highly infectious coronavirus disease (COVID-19). However, the development of a new, effective, and safe vaccine or drug often requires years and poses great risks. At this critical stage, there is an advantage in using existing clinically approved drugs to treat COVID-19. In this study, in vitro severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) spike pseudotyped viral infection experiments indicated that histamine H1 antagonists loratadine (LOR) and desloratadine (DES) could prevent entry of the pseudotyped virus into ACE2-overexpressing HEK293T cells and showed that DES was more effective. Further binding experiments using cell membrane chromatography and surface plasmon resonance demonstrated that both antagonists could bind to ACE2 and that the binding affinity of DES was much stronger than that of LOR. Molecular docking results elucidated that LOR and DES could bind to ACE2 on the interface of the SARS-CoV-2-binding area. Additionally, DES could form one hydrogen bond with LYS31 but LOR binding relied on non-hydrogen bonds. To our knowledge, this study is the first to demonstrate the inhibitory effect of LOR and DES on SARS-CoV-2 spike pseudotyped virus viropexis by blocking spike protein-ACE2 interaction. This study may provide a new strategy for finding an effective therapeutic option for COVID-19.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:338

Enthalten in:

Chemico-biological interactions - 338(2021) vom: 01. Apr., Seite 109420

Sprache:

Englisch

Beteiligte Personen:

Hou, Yajing [VerfasserIn]
Ge, Shuai [VerfasserIn]
Li, Xiaowei [VerfasserIn]
Wang, Cheng [VerfasserIn]
He, Huaizhen [VerfasserIn]
He, Langchong [VerfasserIn]

Links:

Volltext

Themen:

7AJO3BO7QN
ACE2
Angiotensin-Converting Enzyme 2
COVID-19
Desloratadine
EC 3.4.17.23
FVF865388R
Histamine H1 Antagonists, Non-Sedating
Journal Article
Loratadine
SARS-CoV-2
Spike Glycoprotein, Coronavirus
Spike protein, SARS-CoV-2

Anmerkungen:

Date Completed 31.03.2021

Date Revised 31.03.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.cbi.2021.109420

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM321681878