Advanced Healthcare Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 4, 2024
Abstract
Regulation
of
bone
microenvironment
(BME)
including
innate
pH
values
and
metal
ions
affects
cellular
functions
activities
osteoblasts
osteoclasts,
thereby
significantly
influencing
the
process
regeneration.
How
to
achieve
multiple
effective
regulations
BME
through
cascade
effects
via
facile
material
design
fabrication
facilitate
osteogenesis
remains
a
challenge.
Herein,
facilely‐designed
resorbable
guided
regeneration
membrane
(PCL/DEX@Ca‐Zol)
based
on
drug‐loaded
metal‐organic
framework
is
reported.
Thereinto,
calcium
ions,
zoledronic
acid,
dexamethasone
embedded
in
can
be
responsively
released
specifically
inside
defect
an
acid‐triggered
manner
synergistically
regulate
by
neutralization
value,
enhancement
osteogenic
differentiation
mineralization,
inhibition
osteoclasts
one‐go.
Along
with
polycaprolactone
as
structural
support
for
fully
utilized
components
composite
material,
enhances
minimized
side
accordingly
achieved
assistance
modulation
effects.
Analytical Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
The
highly
sensitive
and
rapid
imaging
of
miRNA
in
living
cells
promises
to
advance
our
understanding
diseases
promote
their
diagnosis
treatment.
To
enhance
the
sensitivity
imaging,
a
series
cascade
signal
amplification
strategies
based
on
enzyme-free
methods
have
been
developed.
However,
these
cascaded
involve
complex
designs
multiple
mechanisms,
leading
potential
side
effects.
Herein,
we
developed
novel
hairpins@ZIF-8
nanosystem
by
rationally
integrating
ZIF-8
with
self-feedback
DNAzyme
circuit
(CSDC),
achieving
cells.
facilitates
efficient
transfection
nucleic
acid
probes
into
provides
necessary
cofactor
ions
for
CSDC.
CSDC
possesses
exponential
solely
mechanism.
Benefiting
from
efficiency,
exhibited
higher
than
traditional
DNAzyme-based
amplification,
detection
limit
2.28
fM,
approximately
105
times
more
amplification.
This
demonstrated
strong
practical
application
capabilities,
effectively
reflecting
fluctuations
intracellular
levels
successfully
distinguishing
between
normal
tumor
expression
differences.
It
could
also
be
applied
vivo
imaging.
proposed
strategy
is
anticipated
pave
way
innovative
approaches
serve
as
vital
instrument
miRNA-related
research,
diagnosis,
Abstract
Nanomaterials
with
unparalleled
physical
and
chemical
attributes
have
become
a
cornerstone
in
the
field
of
nanomedicine
delivery.
These
materials
can
be
engineered
into
various
functionalized
nanocarriers,
which
focus
research.
Stimulus‐responsive
nanodrug
delivery
systems
(SRDDS)
stand
out
as
sophisticated
class
nanocarriers
that
release
drugs
response
to
environmental
cues.
Due
complex
pathogenesis
multifaceted
pathological
environment
nervous
system,
developing
accurate
effective
drug
therapy
low
side‐effects
is
formidable
task.
In
recent
years,
SRDDS
been
widely
used
treatment
neurological
diseases.
By
customizing
align
specific
microenvironment
system
tissues
or
external
stimulation,
efficacy
enhanced.
This
review
provides
an
in‐depth
look
at
characteristics
diseases
highlights
case
studies
tailored
treat
these
disorders
based
on
unique
stimulation
criteria
triggers.
Additionally,
this
comprehensive
overview
progress
future
prospects
technology
diseases,
providing
valuable
guidance
for
its
transition
from
fundamental
research
clinical
application.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Abstract
Bone
defects
caused
by
trauma,
infection,
or
tumors
pose
significant
clinical
challenges,
particularly
in
large
with
poor
healing
outcomes.
Traditional
repair
methods
often
fail
to
address
the
complex
regenerative
microenvironment.
This
study
introduces
a
novel
biomimetic
piezoelectric
periosteum‐bone
bilayer
implant
designed
remodel
osteogenic
microenvironment
and
enhance
bone
defect
repair.
The
comprises
an
upper
electrospun
polyvinylidene
fluoride‐curcumin‐loaded
magnesium
metal–organic
framework
(PVDF‐MOF/Cur,
PMC)
periosteum
scaffold
lower
hydroxyapatite@gelatin
methacrylate
(HA@GelMA)
(PMC+HA@GelMA,
PMCG).
In
whole
PMCG
implant,
PMC
improves
properties
of
PVDF
enables
sustained
drug
release
via
Mg‐MOF
loaded
Cur.
Meanwhile,
HA@GelMA
facilitates
marrow
mesenchymal
stem
cells
differentiation
regeneration.
Additionally,
further
accelerates
promoting
neuronal
differentiation,
as
well
enhancing
angiogenesis
regulating
macrophage
polarization.
Transcriptome
sequencing
reveals
that
activates
key
signaling
pathways
associated
angiogenesis,
neurogenesis,
inflammation
regulation,
osteogenesis,
including
HIF‐1α,
PI3K‐Akt,
JAK‐STAT,
TGF‐β
pathways.
Thus,
this
work
highlights
multifunctional
capabilities
remodify
accelerate
repair,
which
offers
promising
platform
for
advancing
tissue
Advanced Healthcare Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 17, 2024
Abstract
Repairing
osteochondral
(OC)
defect
presents
a
significant
challenge
due
to
the
intricate
structural
requirements
and
unpredictable
differentiation
pathways
of
bone
marrow
mesenchymal
stem
cells
(BMSCs).
To
address
this
challenge,
novel
biomimetic
OC
hydrogel
scaffold
is
developed
that
features
structure
soft
hard
components.
This
incorporates
bilayer
metal–organic
frameworks
(MOFs),
specifically
ZIF‐67
in
upper
layer
ZIF‐8
lower
layer,
achieved
through
an
situ
printing
process.
configuration
enables
spatial
temporal
modulation
BMSC
by
controlling
release
Co
2
⁺
Zn
⁺.
The
results
demonstrate
MOF
hydrogels
significantly
outperform
either
lack
MOFs
or
contain
single
type
enhancing
repair
outcomes
rabbit
models
knee
defects.
improved
regenerative
efficacy
attributed
distinct
chondrogenic
osteogenic
cues
provided
MOFs,
effectively
guiding
BMSCs
toward
enhanced
tissue
regeneration.
customizable
not
only
opens
new
avenues
for
innovative
therapeutic
strategies
but
also
holds
great
promise
widespread
clinical
applications.
Journal of Inflammation Research,
Год журнала:
2024,
Номер
Volume 17, С. 2639 - 2653
Опубликована: Апрель 1, 2024
Osteoblasts
(OBs),
which
are
a
crucial
type
of
bone
cells,
derive
from
marrow
mesenchymal
stem
cells
(MSCs).Accumulating
evidence
suggests
inflammatory
cytokines
can
inhibit
the
differentiation
and
proliferation
OBs,
as
well
interfere
with
their
ability
to
synthesize
matrix,
under
conditions.NLRP3
inflammasome
is
closely
associated
cellular
pyroptosis,
lead
excessive
release
pro-inflammatory
cytokines,
causing
tissue
damage
responses,
however,
comprehensive
roles
NLRP3
in
OBs
have
not
been
fully
elucidated,
making
targeting
approaches
treat
diseases
related
uncertain.In
this
review,
we
provide
summary
activation
its
impact
on
OBs.We
highlight
significant
regulating
function.Furthermore,
current
available
strategies
affect
function
osteogenic
listed
analyzed.Finally,
through
prospective
discussion,
seek
novel
insights
into
role
offer
valuable
information
for
devising
treatment
strategies.
Pharmaceutics,
Год журнала:
2024,
Номер
16(8), С. 1063 - 1063
Опубликована: Авг. 13, 2024
New
clinical
strategies
for
treating
severe
bone
and
cartilage
injuries
are
required,
especially
use
in
combination
with
implant
procedures.
For
this
purpose,
p(VCL-co-HEMA)
thermosensitive
hydrogels
have
been
activated
icariin-loaded
nanoparticles
to
be
used
as
bone-cell-harvesting
platforms.
Supercritical
CO2-SAS
technology
has
applied
encapsulate
icariin,
a
small
molecule
that
is
involved
osteoblastic
differentiation.
Thus,
physical-chemical
analysis,
including
swelling
transmittance,
showed
the
impact
of
HEMA
groups
hydrogel
composition.
Moreover,
icariin
(ICA)
release
from
platforms,
pVCL@ICA
nanoparticles,
studied
evaluate
their
efficacy
relevant
conditions.
Finally,
hydrogels’
cell
compatibility,
transplant
efficiency,
differentiation
capacity
were
tested.
This
study
identifies
optimal
formulations
icariin-activated
both
control
formulations.
Using
technique,
sheets
rich
collagen
type
I
successfully
transplanted
recultivated,
maintaining
an
extracellular
matrix
(ECM)
These
findings
suggest
new
cell-sheet-based
therapy
regeneration
purposes
using
customized
NP-activated
pVCL-based
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(43), С. 57995 - 58005
Опубликована: Окт. 17, 2024
The
abnormal
energy
metabolism
level
of
a
tumor
reduces
the
efficiency
chemotherapy.
Metal–organic
nanomaterials
(MONs)
with
high
drug
loading
efficiency,
easy
processes
synthesis,
and
controlled
release
have
shown
great
potential
in
metabolic
blocking
enhancement
therapy.
These
metal–organic
nanomedicines
been
reported
to
modulate
glycolysis
or
oxidative
phosphorylation
provide
monotherapy
combined
therapies
tumorous
treatments.
In
addition,
encapsulation
coordination
fluorescent
dyes
into
MONs
endowed
them
imaging
ability
metabolism.
Herein,
this
Perspective
summarizes
progress
as
therapeutic
agents
probes
for
application
during
imaging,
providing
solid
inspiration
biomedical
applications
effective
biomaterials.
current
drawbacks
further
biological
future
were
discussed,
giving
stimulation
innovation
development
MONs.