Prenatal inflammation exacerbates hyperoxia-induced neonatal brain injury
Meray Serdar,
No information about this author
K. Walther,
No information about this author
Markus Gallert
No information about this author
et al.
Journal of Neuroinflammation,
Journal Year:
2025,
Volume and Issue:
22(1)
Published: Feb. 28, 2025
Abstract
Background
Premature
born
infants
are
at
high
risk
to
develop
white
matter
injury
(WMI).
Hyperoxia
and
perinatal
inflammation
main
factors
for
preterm
birth
associated
brain
injury.
To
date
the
majority
of
experimental
studies
have
focused
on
isolated
insults.
However,
clinically,
WMI
is
a
multifactorial
disorder
caused
by
variety
triggers.
establish
clinically
relevant
rodent
model
WMI,
we
combined
prenatal
with
postnatal
hyperoxia
investigate
individual,
additive
or
synergistic
effects
inflammatory
processes,
myelination
grey
development.
Methods
At
embryonic
day
20,
pregnant
Wistar
rat
dams
received
either
single
intraperitoneal
injection
100
µg/
kg
lipopolysaccharide
(LPS)
sodium
chloride.
Offspring
were
exposed
(80%
O
2
)
normoxia
(21%
from
3
5.
Animals
sacrificed
immediately
after
6
days
later,
corresponding
term-equivalent
age.
White
development
neuroinflammatory
responses
investigated
cellular
molecular
levels
applying
immunohistochemistry,
western
blotting,
real
time
PCR
in
tissues
multiplex
protein
expression
analysis
serum
samples.
Results
Prenatal
resulted
reduced
body
weight
length
offspring,
accompanied
increased
leptin
term
equivalent
The
altered
parameters,
like
weight,
decreased
volume,
thinning
deep
cortical
layers
hypomyelination.
As
potential
underlying
mechanisms,
identified
severe
deficits
an
microglia
activation
elevated
cytokine
tissues,
while
peripheral
reduced.
Interestingly,
size
mainly
mediated
LPS,
independent
hyperoxia,
oligodendrocyte
degeneration
was
induced
inflammation.
pathological
changes,
including
size,
deficits,
expression,
detected.
Conclusion
results
aggravated
compared
insults,
making
it
ideal
improve
our
understanding
complex
pathophysiology
evaluate
urgently
needed
therapies.
Language: Английский
Targeting Neuroinflammation in Preterm White Matter Injury: Therapeutic Potential of Mesenchymal Stem Cell-Derived Exosomes
Xinling Zhang,
No information about this author
Yuhang Zhang,
No information about this author
Xirui Peng
No information about this author
et al.
Cellular and Molecular Neurobiology,
Journal Year:
2025,
Volume and Issue:
45(1)
Published: March 12, 2025
Neuroinflammation
is
a
key
factor
in
the
development
of
preterm
white
matter
injury
(PWMI),
leading
to
glial
cell
dysfunction,
arrest
oligodendrocyte
maturation,
and
long-term
neurological
damage.
As
potential
therapeutic
strategy,
mesenchymal
stem
cells
(MSCs)
exhibit
significant
immunomodulatory
regenerative
potential.
Recent
studies
suggest
that
primary
mechanism
MSC
action
their
paracrine
effects,
particularly
mediated
by
extracellular
vesicles,
with
MSC-derived
exosomes
(MSC-Exos)
being
mediators.
MSC-Exos,
enriched
lipids,
proteins,
nucleic
acids,
regulate
neuroinflammation
modulating
activity
influencing
signaling
pathways
associated
inflammation
repair.
Preclinical
evidence
has
indicated
MSC-Exos
can
suppress
activation
microglia
astrocytes,
promote
enhance
myelination,
highlighting
as
cell-free
treatment
for
PWMI.
However,
there
are
paucity
comprehensive
reviews
on
how
PWMI
through
specific
pathways.
This
review
aims
summarize
which
modulate
discuss
challenges
clinical
application
MSC-Exos-based
therapies.
Language: Английский
Excitotoxic lesion in the corpus callosum of neonatal rats: A model for encephalopathy of prematurity
Neuroscience,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 1, 2025
Language: Английский
Human milk oligosaccharides improve white matter and interneuron development in a double-hit rat model for preterm brain injury
Neuropharmacology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 110507 - 110507
Published: May 1, 2025
Language: Английский
Chronic Inflammation Offers Hints About Viable Therapeutic Targets for Preeclampsia and Potentially Related Offspring Sequelae
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(23), P. 12999 - 12999
Published: Dec. 3, 2024
The
combination
of
hypertension
with
systemic
inflammation
during
pregnancy
is
a
hallmark
preeclampsia,
but
both
processes
also
convey
dynamic
information
about
its
antecedents
and
correlates
(e.g.,
fetal
growth
restriction)
potentially
related
offspring
sequelae.
Causal
inferences
are
further
complicated
by
the
increasingly
frequent
overlap
restriction,
multiple
indicators
acute
chronic
inflammation,
decreased
gestational
length
social
vulnerability).
This
complexity
prompted
our
group
to
summarize
from
mechanistic
studies,
integrated
key
clinical
evidence,
discuss
possibility
that
sustained
or
intermittent
inflammation-related
phenomena
offer
hints
viable
therapeutic
targets,
not
only
for
prevention
neurobehavioral
other
developmental
deficits
appear
be
overrepresented
in
surviving
offspring.
Importantly,
we
feel
carefully
designed
hypothesis-driven
observational
studies
necessary
if
translate
evidence
into
child
health
benefits,
namely
because
disorders
might
contribute
heightened
risks
neuroinflammation,
arrested
brain
development,
dysconnectivity
survivors
who
exhibit
problems
later
life.
Language: Английский