The effect of Polybrominated diphenyl ethers at the fetal blood-brain-barrier: evaluation using a microphysiological system
Frontiers in Cell and Developmental Biology,
Journal Year:
2025,
Volume and Issue:
13
Published: March 12, 2025
Background
Glutamate
dysregulation
leading
to
neuronal
excitotoxicity
and
neuroinflammation
are
associated
with
neurological
disorders,
specifically
autism
spectrum
disorders
(ASD)
in
preterm
neonates.
The
lack
of
physiologically
relevant
vitro
models
has
limited
mechanistic
understanding
glutamate
during
pregnancy.
This
study
evaluated
the
effect
environmental
pollutant
flame
retardant,
Polybrominated
Diphenyl
Ethers
(PBDE)
99
47,
on
cell
viability,
dysregulation,
using
a
microphysiologic
system
(MPS)
human
fetal
blood-brain-barrier
organ
chip
(FB-OOC).
Methods
FB-OOC
is
composed
3-cell
culture
chambers,
connected
by
microchannels,
containing
1)
brain
microvessel
endothelial
cells
(HBMEC),
2)
vascular
pericytes
(HBVP),
3)
triculture
neurons,
astrocytes,
microglia
5:2:1
ratio,
respectively.
To
assess
toxicants
neuroinflammation,
control
(standard
media)
were
exposed
PBDE
47
(150
ng/mL).
mimic
passage
through
placenta,
conditioned
PDBE
media
(1:1)
derived
from
placenta-OOC.
In
parallel,
directly
treated
96-well
plate.
Dextran
propagation
over
72
h
confirmed
FB
barrier
function.
activation
status
was
determined
immunocytochemistry
for
CD11
b
Iba1,
Cell
morphology
(microscopy),
cytotoxicity
(Lactate
Dehydrogenase
assays),
cytokines
(multiplex
assay)
measured.
Results
Physiologic
FB-OOCs
characterized
viable
cultures
expressing
standard
morphologies
cell-specific
markers,
formation
decreased
dextran
h,
baseline
pro-inflammatory
cytokine
production.
On-chip
placenta-derived
metabolites
treatment
chamber
induced
significant
upregulation
but
did
not
induce
nor
compared
controls.
Conversely,
2D
experiments
showed
direct
treatment-induced
(TNF-α,
GM-CSF,
IL-8)
or
Conclusion
established
an
model
that
recreated
intercellular
interactions.
We
report
PBDE-induced
often
development
ASD,
independent
neuroinflammation.
Language: Английский
Organ‐on‐Chip: The Future of Nutrition Research in a One Health World
Food Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 22, 2025
ABSTRACT
The
One
Health
approach
emphasizes
the
interconnectedness
of
human,
animal,
and
environmental
health,
recognizing
that
health
each
is
interdependent
influenced
by
shared
ecosystems.
Nutrition
research
plays
a
critical
role
in
improving
outcomes
across
these
domains,
with
implications
for
sustainability
food
security.
Organ‐on‐chip
(OoC)
technologies
have
emerged
as
innovative
tools
replicating
key
organ
functions,
supporting
disease
modeling,
drug
discovery,
personalized
medicine.
They
also
hold
promise
alternatives
to
traditional
animal
models.
This
systematic
review
examines
potential
OoC
within
framework
nutrition
research,
focusing
on
(1)
their
ability
replicate
human
(2)
applications
safety
ecotoxicology,
(3)
use
studying
components’
effects.
Challenges
future
directions
adoption
are
discussed.
Although
fully
complexity
vivo
physiology
remains
challenge,
OoCs
offer
promising
platform
simulate
functions
interactions.
These
systems
significant
advancing
assessments,
impacts
addressing
systems.
such
standardization,
scalability,
accessibility,
biases
toward
models
remain.
Despite
hurdles,
current
advancements
underscore
versatility
OoCs,
positioning
them
valuable
driving
innovation
feed
safety,
ecotoxicology.
With
continued
progress,
poised
make
contributions
goals
framework.
Language: Английский
Modeling reproductive and pregnancy-associated tissues using organ-on-chip platforms: challenges, limitations, and the high throughput data frontier
Nina Truong,
No information about this author
Abir Zahra,
No information about this author
Ryan C. V. Lintao
No information about this author
et al.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2025,
Volume and Issue:
13
Published: April 1, 2025
Over
the
past
decade,
organ-on-chip
technology
(microphysiological
systems
or
tissue
chips)
has
reshaped
in-vitro
physiological
and
pathological
modeling
pharmaceutical
drug
assessment.
FDA
Modernization
Act
2.0
allows
for
alternatives
to
animal
testing
use
of
appropriate
non-animal
models/new
approach
methods
(NAMs),
such
as
Organ-on-chips
(OC)
platforms
in
silico
simulation
models,
generate
pre-clinical
trial
data
regulatory
purposes
primes
microfluidic
field
have
exponential
growth
coming
years.
The
changes
approaches
agencies
could
significantly
impact
development
therapeutics
during
pregnancy.
However,
limitations
devices
molecular
biochemical
assay
shortfalls
hinder
progress
OOC
field.
This
review
describes
available
reproductive
pregnancy-related
platforms,
current
methodologies
utilized
endpoint
datasets
(e.g.,
microscopic
imaging,
immunocytochemistry,
real-time
polymerase
chain
reaction,
cytokine
multiplex
analysis).
Microfluidic
platform
limitations,
fewer
number
cells
low
supernatant
volumes
restrictions
regarding
fabrication
materials,
are
described.
Novel
spatial
transcriptomics,
imaging
cytometry
by
time
flight,
exosomes
analysis
using
Exoview)
overcome
these
challenges
primed
provide
biologically
relevant
clinically
translational
that
can
revolutionize
modeling,
discovery,
toxicologic
risk
engineering
adaptations
increase
throughput
(i.e.,
device
arrays)
biological
advancements
improve
both
needed
reach
their
full
potential.
Language: Английский
Analysis of the evolution of placental oxidative stress research from a bibliometric perspective
Ailing Chen,
No information about this author
Meng‐Yuan Tian,
No information about this author
Zhanfu Luo
No information about this author
et al.
Frontiers in Pharmacology,
Journal Year:
2024,
Volume and Issue:
15
Published: Oct. 17, 2024
Research
on
placental
oxidative
stress
is
pivotal
for
comprehending
pregnancy-related
physiological
changes
and
disease
mechanisms.
Despite
recent
advancements,
a
comprehensive
review
of
current
status,
hotspots,
trends
remains
challenging.
This
bibliometric
study
systematically
analyzes
the
evolution
research,
offering
reference
future
studies.
Language: Английский
Decoding the molecular pathways governing trophoblast migration and placental development; a literature review
Frontiers in Endocrinology,
Journal Year:
2024,
Volume and Issue:
15
Published: Nov. 27, 2024
Placental
development
is
a
multifaceted
process
critical
for
fruitful
pregnancy,
reinforced
by
complex
network
of
molecular
pathways
that
synchronize
trophoblast
migration,
differentiation,
and
overall
placental
function.
This
review
provides
an
in-depth
analysis
the
key
signaling
pathways,
such
as
Wnt,
Notch,
TGF-β,
VEGF,
which
play
fundamental
roles
in
proliferation,
invasion,
complicated
vascular
development.
For
instance,
Wnt
pathway
essential
to
balance
stem
cell
proliferation
while
Notch
stimulates
fate
decisions
invasive
behavior.
TGF-β
plays
role
invasion
predominantly
response
low
oxygen
environment
early
regulated
hypoxia-inducible
factors
(HIFs).
These
promote
adaptation,
ensure
proper
attachment
vascularization,
facilitate
adequate
fetal-maternal
exchange.
Further,
we
explore
epigenetic
post-transcriptional
regulatory
mechanisms
regulate
function,
including
DNA
methylation
contribution
non-coding
RNAs,
contribute
fine-tuning
gene
expression
during
Dysregulation
these
associated
with
severe
pregnancy
complications,
preeclampsia,
intrauterine
growth
restriction,
recurrent
miscarriage,
emphasizing
need
targeted
therapeutic
strategies.
Finally,
emerging
technologies
like
organoids,
single-cell
RNA
sequencing,
placenta-on-chip
models
are
discussed
innovative
tools
hold
promise
advancing
our
understanding
biology
developing
novel
interventions
improve
outcomes.
emphasizes
importance
better
address
dysfunctions
disorders.
Language: Английский