Eicosanoid signaling in neuroinflammation associated with Alzheimer's disease
Koppada Lohitaksha,
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Deepika Kumari,
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Manas Shukla
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et al.
European Journal of Pharmacology,
Journal Year:
2024,
Volume and Issue:
976, P. 176694 - 176694
Published: May 29, 2024
Language: Английский
5-methoxytryptophan ameliorates renal ischemia/reperfusion injury by alleviating endoplasmic reticulum stress-mediated apoptosis through the Nrf2/HO-1 pathway
Shaona Li,
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Hongjuan Yang,
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Bing Zhang
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et al.
Frontiers in Pharmacology,
Journal Year:
2025,
Volume and Issue:
16
Published: April 14, 2025
Background
Renal
ischemia/reperfusion
(I/R)
injury
is
a
prevalent
clinical
complication
characterized
by
high
incidence
and
mortality
rates.
The
endogenous
metabolite,
5-Methoxytryptophan
(5-MTP),
derived
from
tryptophan,
possesses
anti-inflammatory
antioxidant
properties.
However,
its
role
in
renal
I/R
remains
unclear.
In
this
study,
we
investigated
whether
5-MTP
could
protect
the
kidney
ameliorating
endoplasmic
reticulum
stress
(ERS)-mediated
apoptosis
through
Nrf2/HO-1
pathway.
Methods
results
We
established
models
to
examine
C57BL/6J
mice
with
bilateral
pedicles
clamped
HK-2
cells
subjected
hypoxia/reoxygenation
(H/R).
administration
of
improved
tissue
damage
dysfunction
impairment
reduced
inflammation
oxidative
stress.
Moreover,
attenuated
ERS
ERS-mediated
apoptosis,
while
upregulating
Nrf2
HO-1
expression.
Additionally,
Nrf2-deficient
were
used
determine
pathway
was
involved
alleviating
apoptosis.
deficiency
led
partial
reduction
suppressive
effects
on
inflammation,
stress,
Conclusion
Our
findings
suggest
that
alleviates
inhibiting
ERS-related
via
Language: Английский
Heme Oxygenase‐1 Overexpression Activates the IRF1/DRP1 Signaling Pathway to Promote M2‐Type Polarization of Spinal Cord Microglia
Wenping Lin,
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Ziming Cai,
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Jinzhu Liang
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et al.
Drug Development Research,
Journal Year:
2024,
Volume and Issue:
85(8)
Published: Dec. 1, 2024
Microglia-mediated
neuroinflammatory
responses
have
a
critical
function
in
the
spinal
cord
injury
(SCI)
mechanism,
and
targeted
modulation
of
microglia
activity
has
emerged
as
new
therapeutic
strategy
for
SCI.
Heme
oxygenase
1(HO-1)
regulates
close
dynamic
crosstalk
between
oxidative
stress
inflammatory
responses.
This
investigation
aimed
to
study
molecular
pathways
by
which
HO-1
response
microglia.
We
cultivated
primary
rat
BV2
cell
lines
used
lipopolysaccharide
(LPS)
stimulate
establish
an
vitro
model.
The
adeno-associated
virus
(AAV)
was
induce
overexpression
observe
effects
on
survival,
morphological
changes,
activation,
cytokines
secretion,
mitochondrial
dynamics,
nucleotide-binding
oligomerization
domain-like
receptor
protein
(NLRP3)
complex
nuclear
factor-κB
(NF-κB)
signaling
pathways.
It
found
that
successfully
induced
using
AAV
vitro.
increased
survival
reduced
apoptosis
microenvironment.
Overexpressed
inhibited
M1-type
polarization,
downregulated
NF-κB
pathway,
NLRP3
secretion
factors.
maintained
stability
dynamics
excessive
cleavage.
Further
experiments
showed
activated
interferon
regulatory
factor
1
(IRF1)/dynamin-related
(DRP1)
thereby
promoting
M2-type
polarization
improving
neuronal
survival.
demonstrates
activates
IRF1/DRP1
axis,
M2
attenuating
neuroinflammation
suppressing
pathway.
These
outcomes
offer
visions
important
clues
effectively
managing
SCI
clinic.
Language: Английский
The role of PPAR in fungal keratitis
Hongyan Zhou,
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Hong Zhang,
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Miaomiao Bi
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et al.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Dec. 23, 2024
The
treatment
of
fungal
keratitis(FK)
remains
challenging
due
to
delayed
detection
and
the
limited
effectiveness
antifungal
drugs.
Fungal
infection
can
activate
both
innate
adaptive
immune
responses
in
cornea.
Fungi
stimulate
production
oxidative
stress-related
biomarkers
mediate
infiltration
neutrophils,
macrophages,
T
cells.
These
cells
induce
cytokines,
chemokines,
matrix
metalloproteinases
(MMPs),
leading
corneal
tissue
damage
even
perforation.
signaling
pathway
regulates
expression
inflammatory
cytokines
keratitis.
Immune
is
main
mechanism
FK,
stress
also
involved
this
process.
Peroxisome
proliferator-activated
receptor
(PPAR)
a
member
nuclear
hormone
superfamily,
with
different
subtypes
PPAR
a,
β/δ,
PPARγ.
PPARs
play
important
roles
antioxidant
response,
anti-inflammatory,
lipid
metabolism,
neuroprotection,
regulation
processes.
γ
promote
macrophage
polarization
reduce
by
regulating
ROS
production.
has
made
some
progress
eye
diseases:
PPARa
agonists
inhibit
diabetes
keratopathy
neuropathy.
early
immature
angiogenesis
alkali
burns
have
potential
therapeutic
effects
on
angiogenesis.
control
progression
dry
disease
improve
condition
meibomian
gland
dysfunction.
Based
this,
we
explored
FK.
Language: Английский
Promising role of peroxisome proliferator-activated receptors in respiratory disorders, a review
Drug Metabolism Reviews,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 25
Published: Dec. 26, 2024
Several
studies
indicate
various
pharmacological
and
therapeutic
effects
of
peroxisome
proliferator-activated
receptors
(PPARs)
in
different
disorders.
The
current
review
describes
the
influences
PPARs
on
respiratory,
allergic,
immunologic
diseases.
Various
databases,
including
PubMed,
Science
Direct,
Scopus,
were
searched
regarding
effect
respiratory
allergic
disorders
from
1990
to
2024.
stimulation
experimental
animal
models
diseases
such
as
asthma,
chronic
obstructive
pulmonary
(COPD),
fibrosis
(PF),
lung
infections
shown.
Therapeutic
potential
mediated
through
has
also
been
demonstrated
cancer,
infections,
However,
few
clinical
showed
asthma
COPD.
PPARs-mediated
shown
antioxidant,
immunomodulatory,
anti-inflammatory,
other
mechanisms.
Therefore,
this
indicated
possible
remedy
by
these
treating
Moreover,
mechanistic
paves
way
for
researchers
consider
further
studies.
Language: Английский