Materials Today Bio,
Journal Year:
2025,
Volume and Issue:
32, P. 101778 - 101778
Published: April 17, 2025
Osteoarthritis
(OA)
is
a
progressive
degenerative
disorder
which
severely
threatens
the
quality
of
life
older
individuals.
OA
progression
closely
related
to
heightened
levels
mitochondrial
reactive
oxygen
species
(mtROS).
Although
nanozymes
have
good
ROS-scavenging
effect,
they
cannot
precisely
scavenge
mtROS
because
immune
rejection
cell
membranes,
lysosomal
escape,
and
inability
conventional
directly
target
mitochondria.
Dual-target
were
engineered
in
chondrocytes.
We
used
chondrocyte
membrane-camouflaged
TPP-modified
hollow
Prussian
blue
subsequently
encapsulated
these
hybrid
glycyrrhizic
acid
hydrogel.
The
therapeutic
efficacy
underlying
mechanisms
assessed
vitro
vivo.
novel
enhanced
selectivity,
evasion
capabilities,
targeting.
dual-targeted
exerted
pronounced
impact
on
inflammatory
chondrocytes,
mitigated
mtDNA
leakage
by
scavenging
mtROS,
dampened
cGAS-STING-NF-κB
signaling,
function.
hydrogels
also
exhibited
improved
outcomes.
confirmed
beneficial
effects
nanozyme-hydrogel
combination
mice.
can
reduce
avoiding
suppressing
signaling
pathway,
thereby
decreasing
responses
alleviate
progression.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(2), P. 521 - 521
Published: Jan. 9, 2025
Osteoarthritis
(OA)
is
a
chronic
disease
characterized
by
cartilage
degradation,
leading
to
bone
friction,
inflammation,
stiffness,
pain,
and
reduced
mobility.
This
study
investigates
the
therapeutic
effects
of
porcine-derived
chondroitin
sulfate
sodium
(CS)
on
OA
symptoms
at
both
cellular
animal
levels.
In
vitro
study,
HTB-94
chondrocytes
were
treated
with
inflammatory
stimuli
CS
(10,
50,
100,
200
μg/mL)
assess
release
mediators
expression
genes
proteins
related
synthesis
degradation.
vivo
an
MIA-induced
rat
model
was
used,
(62,
124,
248
mg/kg
b.w.)
orally
administered
for
4
weeks.
Key
parameters,
such
as
exercise
capacity,
micro-CT,
histological
evaluation
joint
tissues,
serum
markers,
mRNA
(inflammatory,
apoptosis
markers),
analyzed.
Porcine-derived
significantly
PGE2,
NO,
extracellular
matrix
degradation
marker
(COMP
CTX-II)
levels
increased
synthesis-related
in
cells
rats.
Additionally,
modulated
pathways
notably
inhibited
vivo.
The
porcine
comparable
NSAID
ibuprofen,
demonstrating
its
potential
anti-inflammatory
chondroprotective
agent
management
dietary
supplementation.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2025,
Volume and Issue:
13
Published: Jan. 28, 2025
Introduction
Osteoarthritis
(OA)
is
a
degenerative
disease
of
the
joints
characterized
by
cartilage
degradation
and
synovial
inflammation.
Due
to
complex
pathogenesis
OA,
multifaceted
therapies
that
modulate
inflammatory
immune
microenvironmental
disturbances
while
promoting
regeneration
are
key
control
progression
OA.
Methods
Herein,
multifunctional
nanoparticle
(DIC/Mg-PDA
NPs)
was
constructed
successfully
metal
chelation
effect
between
Mg
2+
catecholamine
bond
from
dopamine,
followed
amidation
with
diclofenac
(DIC),
which
then
prepared
into
an
injectable
hydrogel
microsphere
(DIC/Mg-PDA@HM)
immune-regulating
cartilage-repairing
abilities
through
microfluidic
technology
for
treatment
osteoarthritis.
Results
discussion
The
sustained
release
composite
microspheres
achieved
regulation
converting
macrophages
M1
M2
promoted
differentiation
BMSCs.
Moreover,
enhanced
DIC
polydopamine
(PDA)
effectively
downregulated
factors,
finally
OA
therapy.
In
addition,
in
vivo
MRI
tissue
section
staining
model
proved
significant
efficacy
on
conclusion,
these
novel
demonstrated
promising
prospect
multidisciplinary
repairing
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
Intra-articular
drug
injections
are
effective
for
osteoarthritis
(OA),
but
challenges
such
as
the
complex
microenvironment
and
rapid
diffusion
require
frequent
injections.
Herein,
we
propose
a
biofunctional
hydrogel-based
strategy
prolonged
delivery
remodeling.
We
to
functionalize
zeolitic
imidazolate
framework-8
with
tannic
acid
(TA-ZIF),
anchor
PTH-related
peptide-1
(PTHrP-1)
within
this
framework
(TA-ZIF@P1)
incorporate
phenylboronic
acid-modified
gelatin-based
hydrogel
(GP
hydrogel)
system
(GP@TA-ZIF@P1,
GPTP
responsive
release
properties
that
respond
pathological
microenvironments
of
OA.
The
facilitated
controlled,
sustained
PTHrP-1
via
dynamic
boronic
esters,
in
vitro
vivo
studies
showing
continuous
over
28
days.
It
not
only
promotes
chondrocyte
proliferation
also
exhibits
significant
cytoprotective
effects
under
hyperactive
ROS
IL-1β-induced
conditions.
Notably,
transcriptome
sequencing
confirms
facilitates
both
chondrogenesis
inflammatory
conditions
by
deactivating
Wnt/β-Catenin
signaling
pathways
enhancing
PI3K/AKT
pathway.
Additionally,
delays
catabolic
metabolism
cartilage
explants
from
mice
environments.
In
surgical
model
mouse
OA,
show
intra-articular
injection
hydrogels
reduced
periarticular
bone
remodeling
promoted
production
glycosaminoglycans
while
offering
chondroprotection
against
degeneration.
To
sum
up,
pioneering
research
on
treatment
combined
system,
offers
valuable
insights
paradigm
controlled
PTHrP-1,
representing
advancement
OA
strategies.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 30, 2025
Osteoarthritis
(OA)
is
the
most
prevalent
degenerative
joint
disorder,
characterized
by
progressive
degradation,
pain,
and
diminished
mobility,
all
of
which
collectively
impair
patients'
quality
life
escalate
healthcare
expenditures.
Current
treatment
options
are
often
inadequate
due
to
limited
efficacy,
adverse
side
effects,
temporary
symptom
relief,
underscoring
urgent
need
for
more
effective
therapeutic
strategies.
Recent
advancements
in
nanomaterials
nanomedicines
offer
promising
solutions
improving
drug
bioavailability,
reducing
effects
providing
targeted
benefits.
This
review
critically
examines
pathogenesis
OA,
highlights
limitations
existing
treatments,
explores
latest
innovations
intelligent
design
OA
therapy,
with
an
emphasis
on
their
engineered
properties,
mechanisms,
translational
potential
clinical
application.
By
compiling
recent
findings,
this
work
aims
inspire
further
exploration
innovation
nanomedicine,
ultimately
advancing
development
personalized
therapies.
Journal of Cellular and Molecular Medicine,
Journal Year:
2025,
Volume and Issue:
29(7)
Published: March 30, 2025
ABSTRACT
Chronic
degenerative
changes
in
cartilage
and
subchondral
bone
that
lead
to
instability
of
the
microenvironment
are
essential
for
development
osteoarthritis
(OA)
old.
Synchronous
repair
may
be
a
key
strategy
OA
treatment.
PDGF‐BB
effectively
promoted
chondrocyte
regeneration
angiogenesis.
However,
mechanisms
by
which
affects
delivery
joint
cavity
need
further
explored.
In
this
study,
we
used
sodium
hyaluronate
deliver
(SH‐PDGF)
space
aimed
determine
SH‐PDGF
repairing
stabilising
microenvironment.
research,
determined
pharmacokinetics
cartilage.
Moreover,
investigated
effects
on
identifying
HIF‐VEGF‐Notch
axis
SDF‐1‐CXCR4
an
rat
model.
The
results
showed
increased
cell
viability,
decreased
HIF‐1α
levels,
inhibited
inflammation
improved
matrix
metabolism
osteoarthritic
chondrocytes
under
hyperoxic
or
hypoxic
conditions.
We
also
found
similar
simultaneously.
had
some
advantages
over
prolonging
injection
interval
decreasing
time.
These
protective
were
mediated
inhibition
both
HIF‐1α‐VEGF‐Notch
axis.
underlying
include
HIF‐1α‐VEGF‐Notch‐mediated
vessel
invasion
axis‐mediated
crosstalk
between
tissue.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Osteoarthritis
(OA)
is
a
chronic
joint
disease
that
causes
gradual
deterioration
of
articular
cartilage.
A
major
challenge
in
OA
treatment
the
limited
penetration
and
delivery
efficiency
drugs
to
cartilage
chondrocytes
due
rapid
clearance
through
synovial
fluid
joints
osmotic
barrier
extracellular
matrix
(ECM).
To
address
this
issue,
novel
tetrahedral
framework
nucleic
acid
(tFNA)‐based
nanomedicine
system
(tFNA‐2WL)
first
synthesized
with
excellent
permeability
perfect
chondrocyte
endocytosis
properties.
After
being
loaded
ginsenoside
Rb1
(Gin),
tFNA‐2WL&Gin
complex
not
only
penetrates
but
also
accumulates
menisci,
ligaments,
capsules,
thus
prolonging
residence
time
Gin
rat
knees.
In
vitro,
effectively
promotes
chondrogenesis,
inhibits
degradation
by
reducing
apoptosis,
scavenges
reactive
oxygen
species
(ROS),
outperforming
free
Gin.
rats,
restores
gait,
reduces
osteophyte
formation,
inflammation
hypertrophy,
protects
from
further
damage
more
than
other
nanomedicines.
These
results
demonstrate
feasibility
tFNA‐2WL
improving
pharmacokinetics
efficacy
highlight
favorable
curative
effects
for
OA,
offering
promising
paradigm
translational
medicine.