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@ARTICLE{Eberle:904310,
author = {Eberle, Raphael J. and Olivier, Danilo S. and Pacca,
Carolina C. and Avilla, Clarita M. S. and Nogueira, Mauricio
L. and Amaral, Marcos S. and Willbold, Dieter and Arni,
Raghuvir K. and Coronado, Monika A.},
title = {{I}n vitro study of {H}esperetin and {H}esperidin as
inhibitors of zika and chikungunya virus proteases},
journal = {PLOS ONE},
volume = {16},
number = {3},
issn = {1932-6203},
address = {San Francisco, California, US},
publisher = {PLOS},
reportid = {FZJ-2021-05880},
pages = {e0246319 -},
year = {2021},
abstract = {The potential outcome of flavivirus and alphavirus
co-infections is worrisome due to the development of severe
diseases. Hundreds of millions of people worldwide live
under the risk of infections caused by viruses like
chikungunya virus (CHIKV, genus Alphavirus), dengue virus
(DENV, genus Flavivirus), and zika virus (ZIKV, genus
Flavivirus). So far, neither any drug exists against the
infection by a single virus, nor against co-infection. The
results described in our study demonstrate the inhibitory
potential of two flavonoids derived from citrus plants:
Hesperetin (HST) against NS2B/NS3pro of ZIKV and nsP2pro of
CHIKV and, Hesperidin (HSD) against nsP2pro of CHIKV. The
flavonoids are noncompetitive inhibitors and the determined
IC50 values are in low µM range for HST against ZIKV
NS2B/NS3pro (12.6 ± 1.3 µM) and against CHIKV nsP2pro (2.5
± 0.4 µM). The IC50 for HSD against CHIKV nsP2pro was 7.1
± 1.1 µM. The calculated ligand efficiencies for HST were
> 0.3, which reflect its potential to be used as a lead
compound. Docking and molecular dynamics simulations display
the effect of HST and HSD on the protease 3D models of CHIKV
and ZIKV. Conformational changes after ligand binding and
their effect on the substrate-binding pocket of the
proteases were investigated. Additionally, MTT assays
demonstrated a very low cytotoxicity of both the molecules.
Based on our results, we assume that HST comprise a chemical
structure that serves as a starting point molecule to
develop a potent inhibitor to combat CHIKV and ZIKV
co-infections by inhibiting the virus proteases.},
cin = {IBI-7},
ddc = {610},
cid = {I:(DE-Juel1)IBI-7-20200312},
pnm = {5244 - Information Processing in Neuronal Networks
(POF4-524)},
pid = {G:(DE-HGF)POF4-5244},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33661906},
UT = {WOS:000626604100104},
doi = {10.1371/journal.pone.0246319},
url = {https://juser.fz-juelich.de/record/904310},
}