Synaptic plasticity and neuroprotection: The molecular impact of flavonoids on neurodegenerative disease progression
Spandana Rajendra Kopalli,
Tapan Behl,
Ashishkumar Kyada
и другие.
Neuroscience,
Год журнала:
2025,
Номер
569, С. 161 - 183
Опубликована: Фев. 7, 2025
Язык: Английский
Resveratrol-Enhanced Human Neural Stem Cell-Derived Exosomes Mitigate MPP+-Induced Neurotoxicity Through Activation of AMPK and Nrf2 Pathways and Inhibition of the NLRP3 Inflammasome in SH-SY5Y Cells
Life,
Год журнала:
2025,
Номер
15(2), С. 294 - 294
Опубликована: Фев. 13, 2025
Parkinson's
disease
(PD)
is
a
progressive
neurodegenerative
disorder
primarily
characterized
by
the
loss
of
dopaminergic
neurons
in
substantia
nigra.
Mitochondrial
dysfunction,
oxidative
stress,
and
neuroinflammation
are
recognized
as
critical
pathological
mechanisms
driving
neurodegeneration
PD.
Exosome
(Exo)-based
therapies,
particularly
those
derived
from
human
neural
stem
cells
(hNSCs),
offer
promising
neuroprotective
effects
due
to
their
ability
transfer
bioactive
molecules
that
modulate
cellular
processes.
Resveratrol
(RES),
polyphenolic
compound
with
potent
antioxidant
anti-inflammatory
properties,
has
been
shown
enhance
therapeutic
potential
cell
(SC)-derived
Exos.
This
study
investigated
RES-treated
hNSCs-derived
Exos
(RES-hNSCs-Exos)
on
SH-SY5Y
exposed
1-methyl-4-phenylpyridinium
(MPP+),
neurotoxin
commonly
used
model
Parkinsonian
neurotoxicity.
Treating
MPP+
led
significant
reductions
viability,
mitochondrial
increased
activation
inflammatory
pathways.
Treatment
RES-hNSCs-Exos
rescued
MPP+-induced
toxicity
improving
enhancing
ATP
production,
increasing
biogenesis,
reducing
reactive
oxygen
species
(ROS)
generation.
The
findings
also
demonstrated
expression
essential
genes
involved
such
PGC1α,
NRF1,
Tfam,
indicating
improved
function
presence
RES-hNSCs-Exos.
Further
analysis
revealed
these
protective
were
mediated
activating
AMP-activated
protein
kinase
(AMPK)
Nrf2
signaling
pathways,
which
promoted
health
reduced
stress.
Moreover,
treatment
suppressed
downregulating
NLRP3
inflammasome
secretion
pro-inflammatory
cytokines
IL-1β
IL-18.
In
conclusion,
results
suggest
exhibit
against
neurotoxicity
function,
inhibiting
neuroinflammation.
These
highlight
hNSCs-Exos
novel
strategy
for
diseases
like
PD,
RES
valuable
enhancer
efficacy.
Язык: Английский
Nrf2/Bach1 signaling axis: A promising multifaceted therapeutic strategy for Alzheimer's disease
Neurotherapeutics,
Год журнала:
2025,
Номер
unknown, С. e00586 - e00586
Опубликована: Апрель 1, 2025
Язык: Английский
Protein sequence editing defines distinct and overlapping functions of SKN-1A/Nrf1 and SKN-1C/Nrf2.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
ABSTRACT
The
Nrf/NFE2L
family
of
transcription
factors
regulates
redox
balance,
xenobiotic
detoxification,
metabolism,
proteostasis,
and
aging.
Nrf1/NFE2L1
is
primarily
responsible
for
stress-responsive
upregulation
proteasome
subunit
genes
essential
adaptation
to
proteotoxic
stress.
Nrf2/NFE2L2
mainly
involved
in
activating
oxidative
stress
responses
promoting
detoxification.
Nrf1
Nrf2
contain
very
similar
DNA
binding
domains
can
drive
transcriptional
responses.
In
C.
elegans
,
a
single
gene,
skn-1
encodes
distinct
protein
isoforms,
SKN-1A
SKN-1C,
that
function
analogously
mammalian
Nrf2,
respectively,
share
an
identical
domain.
Thus,
the
extent
which
SKN-1A/Nrf1
SKN-1C/Nrf2
functions
are
or
overlapping
has
been
unclear.
Regulation
by
requires
post-translational
conversion
N-glycosylated
asparagine
residues
aspartate
PNG-1/NGLY1
peptide:N-glycanase,
process
we
term
‘sequence
editing’.
Here,
reveal
consequences
sequence
editing
transcriptomic
output
activated
SKN-1A.
We
confirm
activation
strictly
dependent
on
editing.
addition,
find
edited
also
activate
linked
homeostasis
detoxification
regulated
but
these
genes’
antagonized
Using
mutant
alleles
selectively
inactivate
either
show
both
isoforms
promote
optimal
resistance,
acting
as
effectors
signaling
pathways.
These
findings
suggest
governs
SKN-1/Nrf
tuning
transcriptome.
Язык: Английский
Oxidative Stress and Redox Imbalance: Common Mechanisms in Cancer Stem Cells and Neurodegenerative Diseases
Cells,
Год журнала:
2025,
Номер
14(7), С. 511 - 511
Опубликована: Март 29, 2025
Oxidative
stress
(OS)
is
an
established
hallmark
of
cancer
and
neurodegenerative
disorders
(NDDs),
which
contributes
to
genomic
instability
neuronal
loss.
This
review
explores
the
contrasting
role
OS
in
stem
cells
(CSCs)
NDDs.
Elevated
levels
reactive
oxygen
species
(ROS)
contribute
promote
tumor
initiation
progression
CSCs,
while
NDDs
such
as
Alzheimer’s
Parkinson’s
disease,
accelerates
death
impairs
cellular
repair
mechanisms.
Both
scenarios
involve
disruption
delicate
balance
between
pro-oxidant
antioxidant
systems,
leads
chronic
oxidative
stress.
Notably,
CSCs
neurons
display
alterations
redox-sensitive
signaling
pathways,
including
Nrf2
NF-κB,
influence
cell
survival,
proliferation,
differentiation.
Mitochondrial
dynamics
further
illustrate
these
differences:
enhanced
function
supports
adaptability
whereas
impairments
heighten
vulnerability.
Understanding
common
mechanisms
OS-induced
redox
imbalance
may
provide
insights
for
developing
interventions,
addressing
aging
hallmarks,
potentially
mitigating
or
preventing
both
Язык: Английский
Integrated Computational and Experimental Approach to Identify Nrf2-Regulated Molecular Targets in Cerebral Ischemia
Опубликована: Янв. 1, 2025
Язык: Английский
The Underestimated Role of Iron in Frontotemporal Dementia: A Narrative Review
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(23), С. 12987 - 12987
Опубликована: Дек. 3, 2024
The
term
frontotemporal
dementia
(FTD)
comprises
a
group
of
neurodegenerative
disorders
characterized
by
the
progressive
degeneration
frontal
and
temporal
lobes
brain
with
language
impairment
changes
in
cognitive,
behavioral
executive
functions,
some
cases
motor
manifestations.
A
high
proportion
FTD
are
due
to
genetic
mutations
inherited
an
autosomal-dominant
manner
variable
penetrance
depending
on
implicated
gene.
Iron
is
crucial
microelement
that
involved
several
cellular
essential
functions
whole
body
plays
additional
specialized
roles
central
nervous
system
(CNS)
mainly
through
its
redox-cycling
properties.
Such
feature
may
be
harmful
under
aerobic
conditions,
since
it
lead
generation
highly
reactive
hydroxyl
radicals.
Dysfunctions
iron
homeostasis
CNS
indeed
disorders,
although
still
challenging
determine
whether
dyshomeostasis
this
but
metal
direct
cause
neurodegeneration,
contributor
factor
or
simply
consequence
other
mechanisms.
Unlike
many
evidence
dysfunction
scarce;
nonetheless,
recent
literature
intriguingly
suggests
possible
involvement.
present
review
aims
summarize
what
currently
known
about
contribution
based
clinical,
imaging,
histological,
biochemical
molecular
studies,
further
suggesting
new
perspectives
offering
insights
for
future
investigations
underexplored
field
research.
Язык: Английский
Centella asiatica Promotes Antioxidant Gene Expression and Mitochondrial Oxidative Respiration in Experimental Autoimmune Encephalomyelitis
Pharmaceuticals,
Год журнала:
2024,
Номер
17(12), С. 1681 - 1681
Опубликована: Дек. 13, 2024
Background/Objectives:
Centella
asiatica
(L.)
Urban
(family
Apiaceae)
(C.
asiatica)
is
a
traditional
botanical
medicine
used
in
aging
and
dementia.
Water
extracts
of
C.
(CAW)
have
been
to
treat
neuropsychiatric
symptoms
related
animal
models
are
associated
with
increases
antioxidant
response
element
(ARE)
genes
improvements
mitochondrial
respiratory
function
neuronal
health.
Because
multiple
sclerosis
(MS)
shares
its
neurogenerative
pathology
oxidative
stress
dysfunction
dementia,
MS
may
also
benefit
from
asiatica.
To
determine
whether
CAW
similarly
benefits
symptoms,
ARE
gene
expression,
respiration
inflammatory
MS,
the
effects
on
clinical
disability
inflammation,
we
tested
using
experimental
autoimmune
encephalomyelitis
(EAE).
Methods:
C57BL/6J
mice
induced
EAE
were
treated
or
placebo
for
2
weeks.
The
outcomes
disability,
signs
anxiety
(open
field
test),
respiration,
inflammation
demyelination.
Results:
At
dosing
schedule
concentrations
tested,
CAW-treated
demonstrated
increased
expression
activity
compared
those
placebo-treated
EAE.
was
reduced
infiltrates
spinal
cord,
but
differences
between
populations
activated
versus
quiescent
microglia
equivocal.
did
not
improve
behavioral
performance,
motor
Conclusions:
In
model
demonstrates
similar
neuroprotective
it
exhibits
dementia
mouse
models.
These
benefits,
along
anti-inflammatory
CAW,
support
further
investigation
people
MS.
Язык: Английский
Role of NRF2 in Pathogenesis of Alzheimer’s Disease
Antioxidants,
Год журнала:
2024,
Номер
13(12), С. 1529 - 1529
Опубликована: Дек. 13, 2024
Alzheimer’s
disease
(AD)
is
a
polygenic,
multifactorial
neurodegenerative
disorder
and
remains
the
most
prevalent
form
of
dementia,
globally.
Despite
decades
research
efforts,
there
still
no
effective
cure
for
this
debilitating
condition.
AD
has
increasingly
focused
on
transcription
factor
NRF2
(nuclear
erythroid
2-related
2)
as
potential
therapeutic
target.
plays
crucial
role
in
protecting
cells
tissues
from
environmental
stressors,
such
electrophiles
reactive
oxygen
species.
Recently,
an
increasing
number
studies
have
demonstrated
that
key
regulator
pathology.
highly
expressed
microglia,
resident
macrophages
central
nervous
system,
contributes
to
neuroinflammation,
phagocytosis
neurodegeneration
AD.
been
reported
modulate
microglia-induced
inflammation
facilitate
transition
homeostatic
microglia
disease-associated
subset.
Genetic
pharmacological
activation
improve
cognitive
function.
Here,
we
review
current
understanding
involvement
critical
context
Our
aim
highlight
targeting
promising
strategy
mitigating
progression
Язык: Английский