Cells,
Journal Year:
2022,
Volume and Issue:
11(19), P. 3093 - 3093
Published: Oct. 1, 2022
In
this
review,
we
shed
light
on
recent
advances
regarding
the
characterization
of
biochemical
pathways
cellular
mechanosensing
and
mechanotransduction
with
particular
attention
to
their
role
in
neurodegenerative
disease
pathogenesis.
While
mechanistic
components
these
are
mostly
uncovered
today,
crosstalk
between
mechanical
forces
soluble
intracellular
signaling
is
still
not
fully
elucidated.
Here,
recapitulate
general
concepts
mechanobiology
mechanisms
that
govern
processes,
examine
stimuli
response,
highlighting
effect
organelles'
homeostasis
dysfunction.
particular,
discuss
current
knowledge
about
translation
mechanosignaling
into
signaling,
focusing
those
diseases
encompass
metabolic
accumulation
mutant
proteins
have
as
primary
characteristics
formation
pathological
aggregates,
such
Alzheimer's
Disease,
Huntington's
Amyotrophic
Lateral
Sclerosis
Parkinson's
Disease.
Overall,
findings
elucidate
how
may
be
crucial
understand
pathogenic
underlying
emphasize
importance
for
identifying
potential
therapeutic
targets.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
35(3)
Published: Nov. 18, 2022
Abstract
Coating
conventional
metallic
electrodes
with
conducting
polymers
has
enabled
the
essential
characteristics
required
for
bioelectronics,
such
as
biocompatibility,
electrical
conductivity,
mechanical
compliance,
and
capacity
structural
chemical
functionalization
of
bioelectrodes.
However,
fragile
interface
between
polymer
electrode
in
wet
physiological
environment
greatly
limits
their
utility
reliability.
Here,
a
general
yet
reliable
strategy
to
seamlessly
hydrogel
coatings
is
established,
featuring
tissue‐like
modulus,
highly‐desirable
electrochemical
properties,
robust
interface,
long‐term
Numerical
modeling
reveals
role
toughening
mechanism,
synergy
covalent
anchorage
long‐chain
polymers,
cross‐linking,
improving
robustness
interface.
Through
vivo
implantation
freely‐moving
mouse
models,
it
shown
that
stable
electrophysiological
recording
can
be
achieved,
while
hydrogel–electrode
remains
during
low‐voltage
stimulation.
This
simple
versatile
design
addresses
long‐standing
technical
challenges
functional
bioelectrode
engineering,
opens
up
new
avenues
next‐generation
diagnostic
brain‐machine
interfaces.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(28)
Published: April 6, 2022
Abstract
Herein
we
present
a
new
way
to
encapsulate
neural
stem
cells
(NSCs)
by
using
hydrogen‐bonded
organic
frameworks
(HOFs)
overcome
the
common
causes
of
low
therapeutic
efficacy
during
NSC
transplantation:
1)
loss
fundamental
cell
properties,
“stemness”,
before
transplantation,
2)
cytomembrane
damage
and
3)
apoptosis
due
oxidative
stress
after
transplantation.
Porous
carbon
nanospheres
(PCNs)
are
doped
into
HOF
shell
process
mineralization
endow
cellular
exoskeletons
with
hierarchical
hydrogen
bonds,
ability
resist
catalase
superoxide
dismutase‐like
activities
PCN.
Under
NIR‐II
irradiation,
thermal‐responsive
bonds
dissociate
release
NSCs.
Stereotactic
transplanting
encapsulated
brain
an
Alzheimer's
disease
(AD)
mouse
model
further
verifies
that
our
design
can
enhance
viability,
promote
neurogenesis,
ameliorate
cognitive
impairment.
As
first
example
HOFs
NSCs,
this
work
may
inspire
HOF‐based
neurogenesis
behavioral
symptoms
associated
AD.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: July 19, 2023
Abstract
The
biofabrication
of
three-dimensional
(3D)
tissues
that
recapitulate
organ-specific
architecture
and
function
would
benefit
from
temporal
spatial
control
cell-cell
interactions.
Bioprinting,
while
potentially
capable
achieving
such
control,
is
poorly
suited
to
organoids
with
conserved
cytoarchitectures
are
susceptible
plastic
deformation.
Here,
we
develop
a
platform,
termed
Spatially
Patterned
Organoid
Transfer
(SPOT),
consisting
an
iron-oxide
nanoparticle
laden
hydrogel
magnetized
3D
printer
enable
the
controlled
lifting,
transport,
deposition
organoids.
We
identify
cellulose
nanofibers
as
both
ideal
biomaterial
for
encasing
magnetic
nanoparticles
shear-thinning,
self-healing
support
maintaining
positioning
facilitate
generation
assembloids.
leverage
SPOT
create
precisely
arranged
assembloids
composed
human
pluripotent
stem
cell-derived
neural
patient-derived
glioma
In
doing
so,
demonstrate
potential
platform
construct
which
key
developmental
processes
disease
etiologies.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(42)
Published: Oct. 20, 2023
Human-induced
pluripotent
stem
cells
(hiPSCs)
have
emerged
as
a
promising
in
vitro
model
system
for
studying
neurodevelopment.
However,
current
models
remain
limited
their
ability
to
incorporate
tunable
biomechanical
signaling
cues
imparted
by
the
extracellular
matrix
(ECM).
The
native
brain
ECM
is
viscoelastic
and
stress-relaxing,
exhibiting
time-dependent
response
an
applied
force.
To
recapitulate
remodelability
of
neural
ECM,
we
developed
family
protein-engineered
hydrogels
that
exhibit
stress
relaxation
rates.
hiPSC-derived
progenitor
(NPCs)
encapsulated
within
these
gels
underwent
rate-dependent
maturation.
Specifically,
NPCs
with
faster
rates
extended
longer,
more
complex
neuritic
projections,
exhibited
decreased
metabolic
activity,
expressed
higher
levels
genes
associated
By
inhibiting
actin
polymerization,
observed
projections
concomitant
decrease
maturation
gene
expression.
Together,
results
suggest
microenvironmental
viscoelasticity
sufficient
bias
human
NPC
SmartMat,
Journal Year:
2024,
Volume and Issue:
5(4)
Published: Jan. 2, 2024
Abstract
With
the
rapid
development
of
advanced
technologies
in
Internet
Things
era,
higher
requirements
are
needed
for
next‐generation
electronic
devices.
Fortunately,
organic
thin
film
transistors
(OTFTs)
provide
an
effective
solution
skin
and
flexible
wearable
devices
due
to
their
intrinsic
features
mechanical
flexibility,
lightweight,
simple
fabrication
process,
good
biocompatibility.
So
far
considerable
efforts
have
been
devoted
this
research
field.
This
article
reviews
recent
advances
various
promising
state‐of‐the‐art
OTFTs
as
well
related
integrated
circuits
with
main
focuses
on:
(I)
material
categories
high‐mobility
semiconductors
both
individual
circuits;
(II)
device
architectures
processing
techniques
large‐area
fabrication;
(III)
important
performance
metrics
realization
digital
analog
future
smart
life;
(IV)
applicable
analytical
models
design
flow
accelerate
circuit
design.
In
addition,
emerging
challenges
OTFT‐based
circuits,
such
transistor
uniformity
stability
also
discussed,
possible
methods
solve
these
problems
at
levels
summarized.
The EMBO Journal,
Journal Year:
2023,
Volume and Issue:
42(22)
Published: Oct. 16, 2023
The
establishment
and
maintenance
of
apical-basal
polarity
is
a
fundamental
step
in
brain
development,
instructing
the
organization
neural
progenitor
cells
(NPCs)
developing
cerebral
cortex.
Particularly,
basally
located
extracellular
matrix
(ECM)
crucial
for
this
process.
In
vitro,
epithelial
polarization
can
be
achieved
via
endogenous
ECM
production,
or
exogenous
supplementation.
While
neuroepithelial
development
recapitulated
organoids,
effects
different
sources
tissue
morphogenesis
remain
underexplored.
Here,
we
show
that
exposure
to
solubilized
basement
membrane
substrate,
Matrigel,
at
early
stages
causes
rapid
rearrangement
architecture.
cultures
exposed
pure
components
unexposed
any
ECM,
acquisition
slower
driven
by
production.
After
onset
neurogenesis,
architecture
neuronal
differentiation
are
largely
independent
initial
source,
but
Matrigel
has
long-lasting
on
patterning.
These
results
advance
knowledge
mechanisms
exogenously
endogenously
guided
morphogenesis,
demonstrating
self-sustainability
processes.