Study of key residues in MERS-CoV and SARS-CoV-2 main proteases for resistance against clinically applied inhibitors nirmatrelvir and ensitrelvir
npj Viruses,
Год журнала:
2024,
Номер
2(1)
Опубликована: Июнь 24, 2024
Abstract
The
Middle
East
Respiratory
Syndrome
Coronavirus
(MERS-CoV)
is
an
epidemic,
zoonotically
emerging
pathogen
initially
reported
in
Saudi
Arabia
2012.
MERS-CoV
has
the
potential
to
mutate
or
recombine
with
other
coronaviruses,
thus
acquiring
ability
efficiently
spread
among
humans
and
become
pandemic.
Its
high
mortality
rate
of
up
35%
absence
effective
targeted
therapies
call
for
development
antiviral
drugs
this
pathogen.
Since
beginning
SARS-CoV-2
pandemic,
extensive
research
focused
on
identifying
protease
inhibitors
treatment
SARS-CoV-2.
Our
intention
was
therefore
assess
whether
these
are
viable
options
combating
MERS-CoV.
To
that
end,
we
used
previously
established
assays
quantify
inhibition
SARS-CoV-2,
main
proteases.
Nirmatrelvir
inhibited
several
proteases,
whereas
ensitrelvir
less
broadly
active.
simulate
nirmatrelvir’s
clinical
use
against
subsequent
resistance
development,
applied
a
safe,
surrogate
virus-based
system.
Using
virus,
selected
hallmark
mutations
SARS-CoV-2-M
pro
,
such
as
T21I,
M49L,
S144A,
E166A/K/V
L167F.
In
current
study,
pool
MERS-CoV-M
mutants,
characterized
modelled
steric
effect
catalytic
site
mutants
S142G,
S142R,
S147Y
A171S.
Язык: Английский
Ensitrelvir treatment-emergent amino acid substitutions in SARS-CoV-2 3CLpro detected in the SCORPIO-SR phase 3 trial
Antiviral Research,
Год журнала:
2025,
Номер
unknown, С. 106097 - 106097
Опубликована: Янв. 1, 2025
Язык: Английский
M49L and other drug resistance mutations emerging in individuals after administration of ensitrelvir in Japanese clinical settings
Antiviral Research,
Год журнала:
2025,
Номер
236, С. 106118 - 106118
Опубликована: Фев. 17, 2025
Язык: Английский
Identification of lead small molecules for the design and development of potent severe acute respiratory syndrome coronavirus 2 main protease inhibitors
Journal of Chemical Research,
Год журнала:
2025,
Номер
49(2)
Опубликована: Март 1, 2025
The
repercussions
of
the
COVID-19
pandemic
caused
by
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
are
catastrophic,
and
world
has
yet
to
achieve
full
recovery.
Several
inhibitors
targeting
SARS-CoV-2
main
protease
experiencing
diminished
efficacy
owing
resistance-inducing
mutations.
current
situation
implies
that
quest
find
potent
resilient
drugs
overcome
resistance
must
be
a
continuous
effort.
Here,
multiple
receptor
virtual
screening
molecular
dynamics
(MD)
simulation
techniques
were
employed
identify
novel
binders
from
an
integrated
small-molecule
database
as
leads
for
discovery,
design,
development
antivirals
immune
protease.
was
initially
screened
separately
against
five
structures
with
different
substrate-binding
site
conformations
using
GOLD
program,
after
which
fitness
score
control
compound
used
cutoff
create
shortlist
potential
hits
in
each
case.
Then,
21
compounds
at
intersection
all
shortlists
selected
hits.
subjected
MD
simulations,
identifying
four
capable
remaining
bound
up
100
ns.
Analysis
mode
binding
interactions
between
revealed
fit
better
into
conserved
subpockets
than
interact
important
amino
acid
residues.
Conjointly,
energy,
toxicity
analysis
results
further
demonstrated
promising
augment
fight
resistance.
Язык: Английский