Science Signaling,
Journal Year:
2023,
Volume and Issue:
16(783)
Published: May 2, 2023
The
SARS-CoV-2
papain-like
protease
(PLpro),
which
has
deubiquitinating
activity,
suppresses
the
type
I
interferon
(IFN-I)
antiviral
response.
We
investigated
mechanism
by
PLpro
antagonizes
cellular
responses.
In
HEK392T
cells,
removed
K63-linked
polyubiquitin
chains
from
Lys
289
of
stimulator
genes
(STING).
PLpro-mediated
deubiquitination
STING
disrupted
STING-IKKε-IRF3
complex
that
induces
production
IFN-β
and
IFN-stimulated
cytokines
chemokines.
human
airway
cells
infected
with
SARS-CoV-2,
combined
treatment
agonist
diABZi
inhibitor
GRL0617
resulted
in
synergistic
inhibition
replication
increased
IFN-I
PLpros
seven
coronaviruses
(SARS-CoV-2,
SARS-CoV,
MERS-CoV,
HCoV-229E,
HCoV-HKU1,
HCoV-OC43,
HCoV-NL63)
four
variants
concern
(α,
β,
γ,
δ)
all
bound
to
suppressed
STING-stimulated
responses
HEK293T
cells.
These
findings
reveal
how
inhibits
signaling
through
a
general
used
coronaviral
dysregulate
facilitate
viral
innate
immune
evasion.
also
identified
simultaneous
pharmacological
activation
as
potentially
effective
strategy
for
therapy
against
SARS-CoV-2.
Science Immunology,
Journal Year:
2022,
Volume and Issue:
7(74)
Published: May 19, 2022
Severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
the
virus
responsible
for
disease
2019
(COVID-19),
continues
to
cause
substantial
morbidity
and
mortality
in
ongoing
global
pandemic.
Understanding
fundamental
mechanisms
that
govern
innate
immune
inflammatory
responses
during
SARS-CoV-2
infection
is
critical
developing
effective
therapeutic
strategies.
Whereas
interferon
(IFN)–based
therapies
are
generally
expected
be
beneficial
viral
infection,
clinical
trials
COVID-19
have
shown
limited
efficacy
potential
detrimental
effects
of
IFN
treatment
infection.
However,
underlying
this
failure
remain
unknown.
In
study,
we
found
induced
Z-DNA-binding
protein
1
(ZBP1)–mediated
cell
death,
PANoptosis,
human
murine
macrophages
lungs
mice
infected
with
β-coronaviruses,
including
mouse
hepatitis
(MHV).
patients
COVID-19,
expression
sensor
ZBP1
was
increased
cells
from
those
who
succumbed
compared
recovered,
further
suggesting
a
link
between
pathology.
mice,
IFN-β
after
β-coronavirus
lethality,
genetic
deletion
Zbp1
or
its
Zα
domain
suppressed
death
protected
IFN-mediated
lethality
Overall,
our
results
identify
limits
therapy
by
driving
lethality.
Therefore,
inhibiting
activity
may
improve
therapy,
paving
way
development
new
critically
needed
therapeutics
as
well
other
infections
conditions
where
pathology
occur.
Nature reviews. Immunology,
Journal Year:
2021,
Volume and Issue:
22(1), P. 47 - 56
Published: Nov. 26, 2021
Human
coronaviruses
cause
a
wide
spectrum
of
disease,
ranging
from
mild
common
colds
to
acute
respiratory
distress
syndrome
and
death.
Three
highly
pathogenic
human
—
severe
coronavirus
(SARS-CoV),
Middle
East
SARS-CoV-2
have
illustrated
the
epidemic
pandemic
potential
coronaviruses,
better
understanding
their
disease-causing
mechanisms
is
urgently
needed
for
rational
design
therapeutics.
Analyses
patients
revealed
marked
dysregulation
immune
system
in
cases
infection,
there
ample
evidence
that
aberrant
responses
are
typified
by
impaired
induction
interferons,
exuberant
inflammatory
delayed
adaptive
responses.
In
addition,
various
viral
proteins
been
shown
impair
interferon
signalling
induce
inflammasome
activation.
This
suggests
disease
associated
with
mediated
both
dysregulated
host
active
interference.
Here
we
discuss
our
current
involved
each
these
scenarios.
this
Perspective,
Lok-Yin
Roy
Wong
Stanley
Perlman
consider
how
2
(SARS-CoV-2)
related
able
drive
immunopathology.
They
provide
an
overview
coronavirus-derived
molecules
interfere
key
innate
responses,
including
pathways
complement,
NF-κB
activation,
as
well
activation
immunity.
Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: Jan. 26, 2023
The
emergence
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
caused
a
pandemic
named
disease
2019
(COVID-19)
that
has
become
the
greatest
worldwide
public
health
threat
this
century.
Recent
studies
have
unraveled
numerous
mysteries
SARS-CoV-2
pathogenesis
and
thus
largely
improved
COVID-19
vaccines
therapeutic
strategies.
However,
important
questions
remain
regarding
its
therapy.
In
review,
recent
research
advances
on
mechanism
are
quickly
summarized.
We
mainly
discuss
current
therapy
strategies
for
COVID-19,
with
an
emphasis
antiviral
agents,
neutralizing
antibody
therapies,
Janus
kinase
inhibitors,
steroids.
When
necessary,
specific
mechanisms
history
present,
representative
described
in
detail.
Finally,
we
key
outstanding
future
directions
development
treatment.
Science Immunology,
Journal Year:
2022,
Volume and Issue:
7(67)
Published: Jan. 7, 2022
Coronavirus
disease
2019
(COVID-19)
is
a
characterized
by
profound
dysregulation
of
the
innate
immune
system.
This
knowledge
has
emerged
from
large
body
single-cell
omics
studies
patients
with
COVID-19,
which
have
provided
one
most
detailed
cellular
atlases
human
ever.
However,
we
are
only
beginning
to
understand
immunological
pathways
that
govern
host
defense
and
immunopathology
in
COVID-19.
In
this
review,
discuss
emerging
understanding
how
SARS-CoV-2
host-derived
molecules
activate
specific
pattern
recognition
receptors
elicit
protective
interferon
responses
pathological
cytokine
responses,
particular
focus
on
acute
infection
lung
pathophysiology
critical
addition,
these
modulated
virus-host
interactions
stress-sensing
pathways.
In-depth
mechanisms
will
likely
uncover
molecular
targets
for
treatment
COVID-19
other
viral
infections.
it
reveal
fine
balance
between
beneficial
versus
causing
responses.
Cell Death and Disease,
Journal Year:
2022,
Volume and Issue:
13(3)
Published: March 25, 2022
Abstract
Stimulator
of
interferon
genes
(STING)
contributes
to
immune
responses
against
tumors
and
may
control
viral
infection
including
SARS-CoV-2
infection.
However,
activation
the
STING
pathway
by
airway
silica
or
smoke
exposure
leads
cell
death,
self-dsDNA
release,
STING/type
I
IFN
dependent
acute
lung
inflammation/ARDS.
The
inflammatory
response
induced
a
synthetic
non-nucleotide-based
diABZI
agonist,
in
comparison
natural
cyclic
dinucleotide
cGAMP,
is
unknown.
A
low
dose
(1
µg
endotracheal
route
for
3
consecutive
days)
triggered
an
neutrophilic
inflammation,
disruption
respiratory
barrier,
DNA
release
with
NET
formation,
PANoptosis
cytokines
type
inflammation.
Downstream
upregulation
sensors
cGAS,
DDX41,
IFI204,
as
well
NLRP3
AIM2
inflammasomes,
suggested
secondary
dsDNA
danger
signal.
DNase
treatment,
inhibition
formation
together
investigation
gene-deficient
mice
highlighted
extracellular
TLR9,
but
not
central
diABZI-induced
response.
Therefore,
death
lead
ARDS
which
be
modeled
diABZI.
These
results
show
that
targeting
activator
therapeutic
strategy
enhance
inflammation
severe
ARDS.
Cell Death and Differentiation,
Journal Year:
2022,
Volume and Issue:
29(6), P. 1107 - 1122
Published: May 17, 2022
Abstract
The
coronavirus
disease
2019
(COVID-19)
has
been
a
global
pandemic
for
more
than
2
years
and
it
still
impacts
our
daily
lifestyle
quality
in
unprecedented
ways.
A
better
understanding
of
immunity
its
regulation
response
to
SARS-CoV-2
infection
is
urgently
needed.
Based
on
the
current
literature,
we
review
here
various
virus
mutations
evolving
manifestations
along
with
alterations
immune
responses
specific
focuses
innate
response,
neutrophil
extracellular
traps,
humoral
immunity,
cellular
immunity.
Different
types
vaccines
were
compared
analyzed
based
their
unique
properties
elicit
Various
therapeutic
strategies
such
as
antibody,
anti-viral
medications
inflammation
control
discussed.
We
predict
that
available
continuously
emerging
new
technologies,
powerful
administration
schedules,
effective
public
health
measures,
COVID-19
will
be
under
near
future.