Journal of Cellular Physiology,
Journal Year:
2024,
Volume and Issue:
239(2)
Published: Jan. 9, 2024
Abstract
Alveolar
epithelial
cell
(AEC)
necroptosis
is
critical
to
disrupt
the
alveolar
barrier
and
provoke
acute
lung
injury
(ALI).
Here,
we
define
calcitonin
gene‐related
peptide
(CGRP),
most
abundant
endogenous
neuropeptide
in
lung,
as
a
novel
modulator
of
AEC
lipopolysaccharide
(LPS)‐induced
ALI.
Upon
LPS‐induced
ALI,
overexpression
Cgrp
significantly
mitigates
inflammatory
response,
alleviates
tissue
damage,
decreases
necroptosis.
Similarly,
CGRP
alleviated
under
LPS
challenge
vitro.
Previously,
identified
that
long
optic
atrophy
1
(L‐OPA1)
deficiency
mediates
mitochondrial
fragmentation,
leading
In
this
study,
discovered
positively
regulated
fusion
through
stabilizing
L‐OPA1.
Mechanistically,
elucidate
activates
AMP‐activated
protein
kinase
(AMPK).
Furthermore,
blockade
AMPK
compromised
protective
effect
against
following
challenge.
Our
study
suggests
CRGP‐mediated
activation
AMPK/L‐OPA1
axis
may
have
potent
therapeutic
benefits
for
patients
with
ALI
or
other
diseases
Respiratory Research,
Journal Year:
2024,
Volume and Issue:
25(1)
Published: Jan. 13, 2024
Abstract
Acute
respiratory
distress
syndrome
(ARDS)
is
a
common
condition
associated
with
critically
ill
patients,
characterized
by
bilateral
chest
radiographical
opacities
refractory
hypoxemia
due
to
noncardiogenic
pulmonary
edema.
Despite
significant
advances,
the
mortality
of
ARDS
remains
unacceptably
high,
and
there
are
still
no
effective
targeted
pharmacotherapeutic
agents.
With
outbreak
coronavirus
disease
19
worldwide,
has
increased
correspondingly.
Comprehending
pathophysiology
underlying
molecular
mechanisms
may
thus
be
essential
developing
therapeutic
strategies
reducing
mortality.
To
facilitate
further
understanding
its
pathogenesis
exploring
novel
therapeutics,
this
review
provides
comprehensive
information
from
presents
therapeutics.
We
first
describe
that
involve
dysregulated
inflammation,
alveolar-capillary
barrier
dysfunction,
impaired
alveolar
fluid
clearance
oxidative
stress.
Next,
we
summarize
signaling
pathways
related
above
four
aspects
pathophysiology,
along
latest
research
progress.
Finally,
discuss
emerging
show
exciting
promise
in
ARDS,
including
several
pharmacologic
therapies,
microRNA-based
therapies
mesenchymal
stromal
cell
highlighting
pathophysiological
basis
influences
on
signal
transduction
for
their
use.
International Journal of Biological Sciences,
Journal Year:
2024,
Volume and Issue:
20(5), P. 1927 - 1946
Published: Jan. 1, 2024
The
activation
of
NLRP3
inflammasome
in
microglia
is
critical
for
neuroinflammation
during
postoperative
cognitive
dysfunction
(POCD)
induced
by
sevoflurane.However,
the
molecular
mechanism
which
sevoflurane
activates
remains
unclear.The
cGAS-STING
pathway
an
evolutionarily
conserved
inflammatory
defense
mechanism.The
role
sevoflurane-induced
inflammasome-dependent
and
underlying
mechanisms
require
further
investigation.We
found
that
prolonged
anesthesia
with
triggered
characterized
vivo.Interestingly,
was
activated
hippocampus
mice
receiving
sevoflurane.While
blockade
cGAS
RU.521
attenuated
mice.In
vitro,
we
treatment
significantly
microglia,
while
pre-treatment
robustly
inhibited
activation.Mechanistically,
mitochondrial
fission
released
DNA
(mtDNA)
into
cytoplasm,
could
be
abolished
Mdivi-1.Blocking
mtDNA
release
via
mPTP-VDAC
channel
inhibitor
cytosolic
escape
reduced
finally
inhibiting
activation.Therefore,
regulating
targeting
may
provide
a
novel
therapeutic
target
POCD.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(6), P. 5125 - 5125
Published: March 7, 2023
Acute
respiratory
distress
syndrome
(ARDS)
threatens
the
survival
of
critically
ill
patients,
mechanisms
which
are
still
unclear.
Neutrophil
extracellular
traps
(NETs)
released
by
activated
neutrophils
play
a
critical
role
in
inflammatory
injury.
We
investigated
NETs
and
underlying
mechanism
involved
acute
lung
injury
(ALI).
found
higher
expression
cyclic
GMP-AMP
synthase-stimulator
interferon
genes
(cGAS-STING)
airways,
was
reduced
Deoxyribonuclease
I
(DNase
I)
ALI.
The
administration
STING
inhibitor
H-151
also
significantly
relieved
injury,
but
failed
to
affect
high
isolated
murine
from
bone
marrow
acquired
human
inducing
HL-60
differentiate.
After
PMA
interventions,
exogenous
were
obtained
such
extracted
neutrophils.
Exogenous
intervention
vitro
vivo
resulted
airway
reversed
upon
degrading
with
or
inhibiting
cGAS-STING
as
well
siRNA
STING.
In
conclusion,
participates
regulating
NETs-mediated
pulmonary
is
expected
be
new
therapeutic
target
for
ARDS/ALI.
Journal of Translational Medicine,
Journal Year:
2023,
Volume and Issue:
21(1)
Published: March 6, 2023
Abstract
Background
Necroptosis
of
macrophages
is
a
necessary
element
in
reinforcing
intrapulmonary
inflammation
during
acute
lung
injury
(ALI).
However,
the
molecular
mechanism
that
sparks
macrophage
necroptosis
still
unclear.
Triggering
receptor
expressed
on
myeloid
cells-1
(TREM-1)
pattern
recognition
broadly
monocytes/macrophages.
The
influence
TREM-1
destiny
ALI
requires
further
investigation.
Methods
decoy
LR12
was
used
to
evaluate
whether
activation
induced
lipopolysaccharide
(LPS)-induced
mice.
Then
we
an
agonist
anti-TREM-1
Ab
(Mab1187)
activate
vitro.
Macrophages
were
treated
with
GSK872
(a
RIPK3
inhibitor),
Mdivi-1
DRP1
or
Rapamycin
(an
mTOR
inhibitor)
investigate
could
induce
macrophages,
and
this
process.
Results
We
first
observed
blockade
attenuated
alveolar
(AlvMs)
mice
LPS-induced
ALI.
In
vitro,
macrophages.
has
been
previously
linked
polarization
migration.
discovered
had
unrecognized
function
modulating
TREM-1-mediated
mitochondrial
fission,
mitophagy,
necroptosis.
Moreover,
promoted
Ser616
phosphorylation
through
signaling,
which
turn
caused
surplus
fission-mediated
consequently
exacerbating
Conclusion
study,
reported
acted
as
necroptotic
stimulus
AlvMs,
fueling
aggravating
also
provided
compelling
evidence
suggesting
mTOR-dependent
fission
underpinning
TREM-1-triggered
inflammation.
Therefore,
regulation
by
targeting
may
provide
new
therapeutic
target
for
future.
Cell Death and Disease,
Journal Year:
2024,
Volume and Issue:
15(7)
Published: July 16, 2024
Abstract
During
oxidative
phosphorylation,
mitochondria
continuously
produce
reactive
oxygen
species
(ROS),
and
untimely
ROS
clearance
can
subject
to
stress,
ultimately
resulting
in
mitochondrial
damage.
Mitophagy
is
essential
for
maintaining
cellular
quality
control
homeostasis,
with
activation
involving
both
ubiquitin-dependent
ubiquitin-independent
pathways.
Over
the
past
decade,
numerous
studies
have
indicated
that
different
forms
of
regulated
cell
death
(RCD)
are
connected
mitophagy.
These
diverse
RCD
been
shown
be
by
mitophagy
implicated
pathogenesis
a
variety
diseases,
such
as
tumors,
degenerative
ischemia‒reperfusion
injury
(IRI).
Importantly,
targeting
regulate
has
excellent
therapeutic
potential
preclinical
trials,
expected
an
effective
strategy
treatment
related
diseases.
Here,
we
present
summary
role
RCD,
focus
on
molecular
mechanisms
which
regulates
RCD.
We
also
discuss
implications
mitophagy-related
context
various
Phytomedicine,
Journal Year:
2024,
Volume and Issue:
130, P. 155738 - 155738
Published: June 1, 2024
Respiratory
diseases
pose
a
grave
threat
to
human
life.
Therefore,
understanding
their
pathogenesis
and
therapeutic
strategy
is
important.
Ferroptosis
novel
type
of
iron-dependent
programmed
cell
death,
distinct
from
apoptosis,
necroptosis,
autophagy,
characterised
by
iron,
reactive
oxygen
species,
lipid
peroxide
accumulation,
as
well
glutathione
(GSH)
depletion
GSH
peroxidase
4
(GPX4)
inactivation.
A
close
association
between
ferroptosis
the
onset
progression
respiratory
diseases,
including
chronic
obstructive
pulmonary
disease,
acute
lung
injury,
bronchial
asthma,
fibrosis,
cancer,
has
been
reported.
Recent
studies
have
shown
that
traditional
Chinese
medicine
(TCM)
compounds
exhibit
unique
advantages
in
treatment
owing
natural
properties
potential
efficacy.
These
can
effectively
regulate
modulating
several
key
signalling
pathways
such
system
Xc
Critical Care,
Journal Year:
2025,
Volume and Issue:
29(1)
Published: Jan. 24, 2025
Sepsis
is
a
life-threatening
condition
resulting
from
pathogen
infection
and
characterized
by
organ
dysfunction.
Programmed
cell
death
(PCD)
during
sepsis
has
been
associated
with
the
development
of
multiple
dysfunction
syndrome
(MODS),
impacting
various
physiological
systems
including
respiratory,
cardiovascular,
renal,
neurological,
hematological,
hepatic,
intestinal
systems.
It
well-established
that
infections
lead
to
immune
dysregulation,
which
subsequently
contributes
MODS
in
sepsis.
However,
recent
evidence
suggests
sepsis-related
opportunistic
pathogens
can
directly
induce
failure
promoting
PCD
parenchymal
cells
each
affected
organ.
This
study
provides
an
overview
damaged
induction
host
pathogens,
proposing
innovative
strategies
for
preventing