APL Bioengineering,
Journal Year:
2024,
Volume and Issue:
8(4)
Published: Dec. 1, 2024
The
high
mortality
associated
with
certain
cancers
can
be
attributed
to
the
invasive
nature
of
tumor
cells.
Yet,
complexity
studying
invasion
hinders
our
understanding
how
spreads.
This
work
presents
a
microengineered
three-dimensional
(3D)
in
vitro
model
for
cancer
cell
and
interaction
endothelial
was
generated
by
printing
biomimetic
hydrogel
scaffold
directly
on
chip
using
2-photon
polymerization
that
simulates
brain's
extracellular
matrix.
scaffold's
geometry
specifically
designed
facilitate
growth
continuous
layer
cells
one
side,
while
also
allowing
introduction
other
side.
arrangement
confines
spatially
enables
situ
microscopy
as
they
invade
interact
layer.
We
examined
impact
3D
parameters
hydrogel's
physical
properties
used
patient
derived
glioblastoma
study
their
effect
invasion.
Notably,
tended
infiltrate
faster
when
an
barrier
present.
potential
adjusting
properties,
coupled
capability
real-time
observation
tumor-endothelial
interactions,
offers
platform
tumor–endothelial
interactions.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
13(9)
Published: Jan. 30, 2024
Due
to
the
inherent
radiation
tolerance,
patients
who
suffered
from
glioma
frequently
encounter
tumor
recurrence
and
malignant
progression
within
target
area,
ultimately
succumbing
treatment
ineffectiveness.
The
precise
mechanism
underlying
tolerance
remains
elusive
due
dearth
of
in
vitro
models
limitations
associated
with
animal
models.
Therefore,
a
bioprinted
model
is
engineered,
characterized
phenotypic
traits
vitro,
compared
2D
ones
when
subjected
X-ray
assessed.
By
comparing
differential
gene
expression
profiles
between
3D
model,
identify
functional
genes,
analyze
distinctions
patterns.
Results
showed
that
exhibited
substantial
alterations
genes
stromal
microenvironment,
notably
significant
increase
ITGA2
(integrin
subunit
A2).
In
models,
knockdown
via
shRNA
resulted
reduced
cells
concomitant
inhibition
p-AKT
pathway.
Overall,
faithfully
recapitulates
vivo
microenvironment
(TME)
exhibits
enhanced
resistance
radiation,
mediated
through
ITGA2/p-AKT
This
represents
superior
platform
for
investigating
radiotherapy
tolerance.
Advanced Healthcare Materials,
Journal Year:
2023,
Volume and Issue:
13(6)
Published: Nov. 10, 2023
Glioblastoma
(GBM)
is
a
devastating
cancer
of
the
brain
with
an
extremely
poor
prognosis.
While
X-ray
radiotherapy
and
chemotherapy
remain
current
standard,
proton
beam
therapy
appealing
alternative
as
protons
can
damage
cells
while
sparing
surrounding
healthy
tissue.
However,
effects
on
in
vitro
GBM
models
at
cellular
level,
especially
when
co-cultured
endothelial
cells,
building
blocks
micro-vessels,
are
still
unexplored.
In
this
work,
novel
3D-engineered
scaffolds
inspired
by
geometry
microvasculature
designed,
where
cluster
proliferate.
The
architectures
fabricated
two-photon
polymerization
(2PP),
pre-cultured
(HUVECs),
then
cultured
human
cell
line
(U251).
micro-vessel
structures
enable
vivo-like
morphologies,
results
show
higher
DNA
double-strand
breakage
monoculture
samples
compared
to
U251/HUVECs
co-culture,
2D
featuring
larger
number
foci
3D.
discrepancy
terms
radiation
response
indicates
difference
radioresistance
mediated
presence
HUVECs
possible
induction
stemness
features
that
contribute
improved
repair.
The
development
of
engineered
cell
microenvironments
for
fundamental
mechanobiology,
in
vitro
disease
modeling,
and
tissue
engineering
applications
increased
exponentially
during
the
last
two
decades.
In
such
context,
radiobiology
is
a
field
research
aiming
at
understanding
effects
ionizing
radiation
(e.g.,
X-rays/photons,
high-speed
electrons,
protons)
on
biological
(cancerous)
tissues
cells,
particular
terms
DNA
damage
leading
to
death.
Herein,
perspective
provides
comparative
assessment
overview
scaffold-free,
scaffold-based,
organ-on-a-chip
models
radiobiology,
highlighting
opportunities,
limitations,
future
pathways
improve
currently
existing
approaches
toward
personalized
cancer
medicine.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Toward
the
aim
of
reducing
animal
testing,
innovative
in
vitro
models
are
required.
Here,
this
study
proposes
a
novel
smart
polymeric
microscaffold
to
establish
an
advanced
3D
model
dopaminergic
neurons.
These
scaffolds
fabricated
with
Ormocomp
via
Two-Photon
Polymerization.
The
further
enhanced
by
functionalization
fluorescent
nanodiamonds
(FNDs),
which
can
serve
as
quantum
nanosensors
for
both
magnetic
and
temperature
sensing.
material
biocompatibility
is
tested
using
two
different
cell
lines,
SH-SY5Y
A431,
viability
over
98%.
A
total
69%
FNDs
grafted
on
structure
compared
those
that
remained
glass
surface.
Cells
several
microenvironments,
final
assembly
required
metrology
experiments
achieved
91%
biocompatibility.
Subsequently,
embryoid
bodies
containing
neurons,
type
affected
Parkinson's
disease
(PD),
integrated
FND-functionalized
scaffolds.
This
successfully
established,
demonstrated
strong
interactions
between
neurons
scaffold,
directional
growth
neurites
along
scaffold.
Ultimately,
have
developed
platform
enables
readout
signaling
holds
great
potential
future
PD
research.
Advanced Healthcare Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 22, 2025
Abstract
Radiotherapy
(RT)
is
a
cancer
treatment
technique
that
involves
exposing
cells
to
ionizing
radiation,
including
X‐rays,
electrons,
or
protons.
RT
offers
promise
treat
cancer,
however,
some
inherent
limitations
can
hamper
its
performance.
Radio‐resistance,
whether
innate
acquired,
refers
the
ability
of
tumor
withstand
treatment,
making
it
key
factor
in
failure.
This
perspective
hypothesizes
nanoscale
surface
topography
impact
on
topology
network
under
and
this
understanding
possibly
advance
assessment
cell
radio‐resistance
applications.
An
experimental
plan
proposed
test
hypothesis,
using
exposed
various
forms.
By
examining
influence
2D
3D
scaffold
architecture
cells,
approach
diverges
from
traditional
methodologies,
such
as
clonogenic
assays,
offering
novel
viewpoint
integrates
fields
tissue
engineering,
artificial
intelligence,
nanotechnology.
The
hypotheses
at
base
not
only
may
but
also
insights
into
broader
field
structural
biology.
Nanotechnology
label‐free
Raman
phenotyping
biological
samples
are
lenses
through
which
scientists
better
elucidate
structure‐function
relationship
systems.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 21, 2024
Abstract
In
the
present
study,
influence
of
topographic
and
mechanical
cues
on
neuronal
growth
cones
(NGCs)
network
directionality
in
3D‐engineered
cell
culture
models
is
explored.
Two‐photon
polymerization
(2PP)
employed
to
fabricate
nanopillar
arrays
featuring
tunable
effective
shear
modulus.
Large
variations
properties
are
obtained
by
altering
aspect
ratio
nanostructures.
The
seeded
with
different
lines,
including
neural
progenitor
cells
(NPCs)
derived
from
human
induced
pluripotent
stem
(iPSCs),
I
3
Neurons,
primary
hippocampal
neurons.
All
types
exhibit
preferential
orientations
according
topology,
as
shown
neurites
creating
a
high
number
oriented
orthogonal
networks.
Furthermore,
differentiation
maturation
NPCs
affected
nanopillars,
expression
mature
marker
Synapsin
I.
Lastly,
NGCs
influenced
modulus
terms
spreading
area,
stochastic
optical
reconstruction
microscopy
(STORM)
assess
cytoskeleton
organization
at
nanometric
resolution.
developed
approach,
involving
laser‐assisted
3D
microfabrication,
neuro‐mechanobiology,
super‐resolution
microscopy,
paves
way
for
prospective
comparative
studies
evolution
networks
healthy
diseased
(e.g.,
neurodegenerative)
conditions.