Cells,
Journal Year:
2024,
Volume and Issue:
13(6), P. 512 - 512
Published: March 14, 2024
Hypoxia-inducible
factor-1
(HIF-1)
is
a
heterodimer
transcription
factor
composed
of
an
alpha
and
beta
subunit.
HIF-1α
master
regulator
cellular
response
to
hypoxia
by
activating
the
genes
that
facilitate
metabolic
adaptation
hypoxia.
Since
chondrocytes
in
mature
articular
cartilage
reside
hypoxic
environment,
plays
important
role
chondrogenesis
physiological
lifecycle
cartilage.
Accumulating
evidence
suggests
interactions
between
HIF
pathways
circadian
clock.
The
clock
emerging
both
developing
chondrocytes.
However,
how
rhythm
established
during
early
steps
formation
through
what
signaling
it
promotes
healthy
chondrocyte
phenotype
still
not
entirely
known.
This
narrative
review
aims
deliver
concise
analysis
existing
understanding
dynamic
interplay
molecular
chondrocytes,
states
health
disease,
while
also
incorporating
creative
interpretations.
We
explore
diverse
hypotheses
regarding
intricate
among
these
propose
relevant
therapeutic
strategies
for
disorders
such
as
osteoarthritis.
Materials Today Bio,
Journal Year:
2024,
Volume and Issue:
24, P. 100948 - 100948
Published: Jan. 5, 2024
Articular
cartilage
injury
is
a
frequent
worldwide
disease,
while
effective
treatment
urgently
needed.
Due
to
lack
of
blood
vessels
and
nerves,
the
ability
self-repair
limited.
Despite
availability
various
clinical
treatments,
unfavorable
prognoses
complications
remain
prevalent.
However,
advent
tissue
engineering
regenerative
medicine
has
generated
considerable
interests
in
using
biomaterials
for
articular
repair.
Nevertheless,
there
remains
notable
scarcity
comprehensive
reviews
that
provide
an
in-depth
exploration
strategies
applications.
Herein,
we
present
overview
primary
bioactive
substances
from
perspective
repair
cartilage.
The
include
regeneration,
substitution,
immunization.
We
comprehensively
delineate
influence
mechanically
supportive
scaffolds
on
cellular
behavior,
shedding
light
emerging
scaffold
technologies,
including
stimuli-responsive
smart
scaffolds,
3D-printed
bionic
scaffolds.
Biologically
active
substances,
factors,
stem
cells,
extracellular
vesicles
(EVs),
organoids,
are
elucidated
their
roles
regulating
activity
chondrocytes.
Furthermore,
composite
produced
industrially
put
into
use,
also
explicitly
presented.
This
review
offers
innovative
solutions
treating
ailments
emphasizes
potential
translation.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(16)
Published: Jan. 24, 2024
Abstract
Abnormal
silencing
of
fibroblast
growth
factor
(FGF)
signaling
significantly
contributes
to
joint
dysplasia
and
osteoarthritis
(OA);
However,
the
clinical
translation
FGF18‐based
protein
drugs
is
hindered
by
their
short
half‐life,
low
delivery
efficiency
need
for
repeated
articular
injections.
This
study
proposes
a
CRISPR/Cas9‐based
approach
effectively
activate
FGF18
gene
OA
chondrocytes
at
genome
level
in
vivo,
using
chondrocyte‐affinity
peptide
(CAP)
incorporated
hybrid
exosomes
(CAP/FGF18‐hyEXO)
loaded
with
an
FGF18‐targeted
gene‐editing
tool.
Furthermore,
CAP/FGF18‐hyEXO
are
encapsulated
methacrylic
anhydride‐modified
hyaluronic
(HAMA)
hydrogel
microspheres
via
microfluidics
photopolymerization
create
injectable
microgel
system
(CAP/FGF18‐hyEXO@HMs)
self‐renewable
hydration
layers
provide
persistent
lubrication
response
frictional
wear.
Together,
CAP/FGF18‐hyEXO@HMs,
combined
vivo
editing
continuous
lubrication,
have
demonstrated
capacity
synergistically
promote
cartilage
regeneration,
decrease
inflammation,
prevent
ECM
degradation
both
vitro
holding
great
potential
translation.
Bioactive Materials,
Journal Year:
2024,
Volume and Issue:
36, P. 1 - 13
Published: Feb. 21, 2024
Osteoarthritis
(OA)
progresses
due
to
the
excessive
generation
of
reactive
oxygen
and
nitrogen
species
(ROS/RNS)
abnormal
ATP
energy
metabolism
related
oxidative
phosphorylation
pathway
in
mitochondria.
Highly
active
single-atom
nanozymes
(SAzymes)
can
help
regulate
redox
balance
have
shown
their
potential
treatment
inflammatory
diseases.
In
this
study,
we
innovatively
utilised
ligand-mediated
strategies
chelate
Pt
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(23)
Published: Jan. 7, 2024
Abstract
The
incidence
of
large
bone
and
articular
cartilage
defects
caused
by
traumatic
injury
is
increasing
worldwide;
the
tissue
regeneration
process
for
these
injuries
lengthy
due
to
limited
self‐healing
ability.
Endogenous
bioelectrical
phenomenon
has
been
well
recognized
play
an
important
role
in
homeostasis
regeneration.
Studies
have
reported
that
electrical
stimulation
(ES)
can
effectively
regulate
various
biological
processes
holds
promise
as
external
intervention
enhance
synthesis
extracellular
matrix,
thereby
accelerating
Hence,
electroactive
biomaterials
considered
a
biomimetic
approach
ensure
functional
recovery
integrating
physiological
signals,
including
electrical,
biochemical,
mechanical
signals.
This
review
will
discuss
endogenous
bioelectricity
tissue,
effects
ES
on
cellular
behaviors.
Then,
recent
advances
materials
their
applications
are
systematically
overviewed,
with
focus
advantages
disadvantages
repair
performances
modulation
cell
fate.
Finally,
significance
mimicking
electrophysiological
microenvironment
target
emphasized
future
development
challenges
strategies
proposed.
Transient
receptor
potential
vanilloid
family
member
1
(TRPV1)
has
been
revealed
as
a
therapeutic
target
of
osteoarthritis
(OA),
the
most
common
deteriorating
whole
joint
disease,
by
impeding
macrophagic
inflammation
and
chondrocytes
ferroptosis.
However,
clinical
application
for
capsaicin
TRPV1
agonist
is
largely
limited
its
chronic
toxicity.
To
address
this
issue,
we
developed
bifunctional
controllable
magnetothermal
switch
targeting
alleviation
OA
progression
coupling
magnetic
nanoparticles
(MNPs)
to
monoclonal
antibodies
(MNPs-TRPV1).
Under
alternating
field
(AMF)
stimulation,
MNPs-TRPV1
locally
dissipated
heat,
which
was
sufficient
trigger
opening
activation
TRPV1,
effectively
impeded
chondrocyte
This
modulation
simultaneously
attenuated
synovitis
cartilage
degeneration
in
mice
incurred
destabilization
medial
meniscus
surgery,
indicating
delayed
progression.
Furthermore,
with
AMF
exposure
remarkably
reduced
knee
pain
sensitivity,
alleviated
crippled
gait,
improved
spontaneous
ambulatory
activity
performance
model.
Overall,
work
provides
pathogenesis-based
precise
therapy
temporally
spatially
manner.
Journal of Nanobiotechnology,
Journal Year:
2025,
Volume and Issue:
23(1)
Published: Jan. 13, 2025
Osteoarthritis
(OA)
is
a
joint
disease
characterized
by
articular
cartilage
degradation.
Persistent
low-grade
inflammation
defines
OA
pathogenesis,
with
crucial
involvement
of
pro-inflammatory
M1-like
macrophages.
While
mesenchymal
stromal
cells
(MSC)
and
their
small
extracellular
vesicles
(sEV)
hold
promise
for
treatment,
achieving
consistent
clinical-grade
sEV
products
remains
significant
challenge.
This
study
aims
to
develop
fully
characterized,
reproducible,
batches
derived
from
umbilical
cord
(UC)-MSC
the
treatment
while
assessing
its
efficacy
safety.
Initially,
standardized,
research-grade
manufacturing
protocol
was
established
ensure
production.
UC-MSC-sEV
characterization
under
non-cGMP
conditions
showed
miRNA
protein
profiles,
suggesting
potential
standardized
manufacturing.
In
vitro
studies
evaluated
efficacy,
safety,
potency
sEV;
animal
confirmed
effectiveness
vitro,
polarized
macrophages
an
anti-inflammatory
M2b-like
phenotype,
through
STAT1
modulation,
indicating
create
environment
in
affected
joints.
silico
sEV's
immunosuppressive
signature
proteome
analysis.
mouse
model,
injected
intra-articularly
(IA)
induced
hyaline
regeneration,
validated
histological
μCT
analyses.
The
unique
detection
signals
within
knee
over
time
highlights
safety
profile
confirming
retention
joint.
product
development
involved
refining,
standardizing,
validating
processes
compliance
GMP
standards.
initial
assessment
via
IA
administration
first-in-human
no
adverse
effects
after
12
month
follow-up
period.
These
results
support
progress
this
sEV-based
therapy
early-phase
clinical
trial,
details
which
are
presented
discussed
work.
provides
data
on
using
as
local
OA,
highlighting
regenerative
properties
preclinical
proof-of-principle
application.
Journal of Orthopaedic Translation,
Journal Year:
2025,
Volume and Issue:
50, P. 111 - 128
Published: Jan. 1, 2025
The
treatment
of
orthopaedic
diseases,
such
as
fractures
and
osteoarthritis,
remains
a
significant
challenge
due
to
the
complex
requirements
for
mechanical
strength
tissue
repair.
Hydrogels
based
on
hyaluronic
acid
methacrylate
(HAMA)
show
promise
engineering
materials
these
conditions.
Hyaluronic
(HA)
is
natural
component
extracellular
matrix,
known
its
good
compatibility.
HAMA-based
hydrogels
can
be
adjusted
through
crosslinking
by
combining
them
with
other
materials.
This
review
provides
an
overview
recent
research
applications
in
diseases.
First,
we
summarize
techniques
preparation
characterization
HAMA
hydrogels.
Next,
offer
detailed
use
treating
conditions
cartilage
injuries,
bone
defects,
meniscus
injuries.
Additionally,
discuss
diseases
related
orthopaedics.
Finally,
point
out
challenges
propose
future
directions
clinical
translation
strong
translational
potential
orthopaedics
their
biocompatibility,
adjustable
properties,
regenerative
capabilities.
With
ongoing
research,
are
well-positioned
applications,
particularly
repair,
osteoarthritis
treatment.
Biochemical Journal,
Journal Year:
2023,
Volume and Issue:
480(23), P. 1987 - 2008
Published: Dec. 6, 2023
Interleukin
11
(IL11)
is
an
elusive
member
of
the
IL6
family
cytokines.
While
initially
thought
to
be
a
haematopoietic
and
cytoprotective
factor,
more
recent
data
show
instead
that
IL11
redundant
for
haematopoiesis
toxic.
In
this
review,
reasons
led
original
misunderstandings
biology,
which
are
now
understandable,
explained
with
particular
attention
on
use
recombinant
human
in
mice
humans.
Following
tissue
injury,
as
part
evolutionary
ancient
homeostatic
response,
secreted
from
damaged
mammalian
cells
signal
via
JAK/STAT3,
ERK/P90RSK,
LKB1/mTOR
GSK3β/SNAI1
autocrine
paracrine.
This
activates
program
mesenchymal
transition
epithelial,
stromal,
endothelial
cause
inflammation,
fibrosis,
stalled
endogenous
repair,
leading
organ
failure.
The
role
signalling
cell-
organ-specific
pathobiology
described,
large
unknowns
about
biology
discussed
promise
targeting
therapeutic
approach
reviewed.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(16), P. 10667 - 10687
Published: April 9, 2024
Cartilage
injuries
are
escalating
worldwide,
particularly
in
aging
society.
Given
its
limited
self-healing
ability,
the
repair
and
regeneration
of
damaged
articular
cartilage
remain
formidable
challenges.
To
address
this
issue,
nanomaterials
leveraged
to
achieve
desirable
outcomes
by
enhancing
mechanical
properties,
optimizing
drug
loading
bioavailability,
enabling
site-specific
targeted
delivery,
orchestrating
cell
activities
at
nanoscale.
This
review
presents
a
comprehensive
survey
recent
research
nanomedicine
for
repair,
with
primary
focus
on
biomaterial
design
considerations
advances.
The
commences
an
introductory
overview
intricate
microenvironment
further
delves
into
key
parameters
crucial
treating
damage,
including
microstructure,
surface
charge,
active
targeting.
focal
point
lies
advances
nano
delivery
systems
nanotechnology-enabled
3D
matrices
repair.
We
discuss
compositions
properties
these
elucidate
how
materials
impact
cartilage.
underscores
pivotal
role
nanotechnology
improving
efficacy
biomaterials
utilized
treatment
damage.