International Immunopharmacology,
Journal Year:
2025,
Volume and Issue:
147, P. 114022 - 114022
Published: Jan. 6, 2025
Osteoarthritis
(OA)
is
the
most
prevalent
joint
disorder
globally,
causing
a
substantial
and
increasing
socioeconomic
burden.
Kojic
acid
(KA)
presented
potential
biological
roles
in
regulating
inflammation
autophagy,
which
was
implicated
OA
progression.
However,
its
role
chondrocytes
has
not
been
reported.
To
do
so,
this
study
aims
to
explore
chondroprotective
effect
of
KA
elucidate
regulatory
mechanisms.
IL-1β
vitro
used
induce
OA-like
phenotypes.
Cell
viability
measured
by
cell
counting
kit-8
assay.
RT-qPCR,
western
blotting,
as
well
immunofluorescence
staining
were
assess
protein
RNA
expression
inflammatory
(COX2
iNOS),
catabolic
(MMP13
MMP3),
anabolic
(collagen
II,
aggrecan
SOX9),
signaling
pathways
factors.
Destabilized
medial
meniscus
(DMM)
surgery
adopted
build
model
vivo.
After
consecutive
8
weeks
intra-articular
injection
KA,
X-ray,
μ-CT,
histological
staining,
immunohistochemistry
evaluate
effects
on
articular
cartilage
did
affect
chondrocyte
viability.
notably
elevated
factors
expression,
simultaneously,
inhibited
vitro.
Mechanistically,
significantly
suppressed
activated
NF-κB
PI3K/AKT/mTOR
pathways.
Moreover,
impaired
autophagy
restored
KA.
Inhibition
3-MA
diminished
Intra-articular
can
alleviate
DMM-induced
damage
Collectively,
our
work
first
demonstrate
that
osteoarthritis
attenuatinginflammationand
restoring
through
relevant
This
vivo
provides
strong
evidence
supportingKA
novel
valuable
approach
for
treating
OA.
Abstract
During
aging
and
after
traumatic
injuries,
cartilage
bone
cells
are
exposed
to
various
pathophysiologic
mediators,
including
reactive
oxygen
species
(ROS),
damage-associated
molecular
patterns,
proinflammatory
cytokines.
This
detrimental
environment
triggers
cellular
stress
subsequent
dysfunction,
which
not
only
contributes
the
development
of
associated
diseases,
that
is,
osteoporosis
osteoarthritis,
but
also
impairs
regenerative
processes.
To
counter
ROS-mediated
reduce
overall
tissue
damage,
possess
diverse
defense
mechanisms.
However,
antioxidative
capacities
limited
thus
ROS
accumulation
can
lead
aberrant
cell
fate
decisions,
have
adverse
effects
on
homeostasis.
In
this
narrative
review,
we
address
oxidative
as
a
major
driver
processes
in
bone,
senescence,
misdirected
differentiation,
death,
mitochondrial
impaired
mitophagy
by
illustrating
consequences
homeostasis
regeneration.
Moreover,
elaborate
mechanisms,
with
particular
focus
response
mitophagy,
briefly
discuss
respective
therapeutic
strategies
improve
protection.
Bone Research,
Journal Year:
2024,
Volume and Issue:
12(1)
Published: Feb. 18, 2024
Osteoporosis,
a
metabolic
bone
disease
characterized
by
low
mineral
density
and
deterioration
of
microarchitecture,
has
led
to
high
risk
fatal
osteoporotic
fractures
worldwide.
Accumulating
evidence
revealed
that
sexual
dimorphism
is
notable
feature
osteoporosis,
with
sex-specific
differences
in
epidemiology
pathogenesis.
Specifically,
females
are
more
susceptible
than
males
while
prone
disability
or
death
from
the
disease.
To
date,
sex
chromosome
abnormalities
steroid
hormones
have
been
proven
contribute
greatly
osteoporosis
regulating
functions
cells.
Understanding
its
related
complications
essential
for
improving
treatment
strategies
tailored
women
men.
This
literature
review
focuses
on
mechanisms
underlying
mainly
population
aging
patients,
chronic
glucocorticoid
administration,
diabetes.
Moreover,
we
highlight
implications
developing
therapeutics
preventive
screening
approaches
Additionally,
challenges
translating
bench
research
bedside
treatments
future
directions
overcome
these
obstacles
will
be
discussed.
Annals of Medicine,
Journal Year:
2025,
Volume and Issue:
57(1)
Published: Jan. 3, 2025
Yigu
decoction
(YGD)
is
a
traditional
Chinese
medicine
prescription
for
the
treatment
of
osteoporosis,
although
many
clinical
studies
have
confirmed
its
anti-OP
effect,
but
specific
mechanism
still
not
completely
clear.
Bioactive Materials,
Journal Year:
2024,
Volume and Issue:
41, P. 239 - 256
Published: July 24, 2024
Periodontitis
is
a
chronic
inflammatory
disease
caused
by
plaque
that
destroys
the
alveolar
bone
tissues,
resulting
in
tooth
loss.
Poor
eradication
of
pathogenic
microorganisms,
persistent
malignant
inflammation
and
impaired
osteo-/angiogenesis
are
currently
primary
challenges
to
control
progression
rebuild
damaged
bone.
However,
existing
treatments
for
periodontitis
fail
comprehensively
address
these
issues.
Herein,
an
injectable
composite
hydrogel
(SFD/CS/ZIF-8@QCT)
encapsulating
quercetin-modified
zeolitic
imidazolate
framework-8
(ZIF-8@QCT)
developed.
This
possesses
thermo-sensitive
adhesive
properties,
which
can
provide
excellent
flowability
post-injection
stability,
resist
oral
fluid
washout
as
well
achieve
effective
tissue
adhesion.
Inspirationally,
it
observed
SFD/CS/ZIF-8@QCT
exhibits
rapid
localized
hemostatic
effect
following
implantation,
then
virtue
sustained
release
zinc
ions
quercetin
exerts
collective
functions
including
antibacterial,
immunomodulation,
pro-osteo-/angiogenesis
pro-recruitment,
ultimately
facilitating
regeneration.
Notably,
our
study
also
demonstrates
inhibition
PDLSCs
under
due
strong
energy
metabolism
powerful
activation
oxidative
stress
autophagy,
whereas
synergistic
effects
released
reversing
biological
processes.
Overall,
presents
innovative
insights
into
advancement
biomaterials
regenerate
periodontitis.
Theranostics,
Journal Year:
2024,
Volume and Issue:
14(10), P. 3859 - 3899
Published: Jan. 1, 2024
Osteoporosis
is
a
systemic
skeletal
disease
caused
by
an
imbalance
between
bone
resorption
and
formation.
Current
treatments
primarily
involve
medication
hormone
therapy.
However,
these
lack
directionality
are
often
ineffective
for
locally
severe
osteoporosis,
with
the
potential
complex
adverse
reactions.
Consequently,
treatment
strategies
using
bioactive
materials
or
external
interventions
have
emerged
as
most
promising
approaches.
This
review
proposes
twelve
microenvironmental
targets
osteoporosis-related
pathological
changes,
including
local
accumulation
of
inflammatory
factors
reactive
oxygen
species
(ROS),
mitochondrial
dynamics,
insulin
resistance,
disruption
cell
autophagy,
apoptosis,
changes
in
neural
secretions,
aging
cells,
increased
tissue
vascular
destruction,
decreased
regeneration.
Additionally,
this
examines
current
research
status
effective
biophysical
biochemical
stimuli
based
on
summarizes
advantages
optimal
parameters
different
bioengineering
to
support
preclinical
clinical
osteoporosis
Finally,
addresses
ongoing
challenges
future
prospects.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
14
Published: Jan. 9, 2024
Osteoarthritis
(OA)
has
been
a
leading
cause
of
disability
in
the
elderly
and
there
remains
lack
effective
therapeutic
approaches
as
mechanisms
pathogenesis
progression
have
yet
to
be
elucidated.
As
OA
progresses,
cellular
metabolic
profiles
energy
production
are
altered,
emerging
reprogramming
highlights
importance
specific
pathways
disease
progression.
crucial
part
glucose
metabolism,
glycolysis
bridges
inflammatory
dysfunctions.
Moreover,
glycolytic
pathway
is
involved
different
areas
metabolism
inflammation,
associated
with
variety
transcription
factors.
To
date,
it
not
fully
elucidated
whether
changes
its
key
enzymes
onset
or
OA.
This
review
summarizes
important
role
mediating
inducing
tissue
inflammation
injury,
aim
providing
further
insights
into
pathological
functions
proposing
new
targets
for
treatment
Acta Biochimica et Biophysica Sinica,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 30, 2024
Osteoarthritis
(OA)
is
the
most
common
joint
disease,
and
good
therapeutic
results
are
often
difficult
to
obtain
due
its
complex
pathogenesis
diverse
causative
factors.
After
decades
of
research
exploration
OA,
it
has
been
progressively
found
that
subchondral
bone
essential
for
pathogenesis,
pathological
changes
in
can
be
observed
even
before
cartilage
lesions
develop.
Osteoclasts,
main
cells
regulating
resorption,
play
a
crucial
role
bone.
Subchondral
osteoclasts
regulate
homeostasis
through
secretion
degradative
enzymes,
immunomodulation,
cell
signaling
pathways.
In
overactivated
by
autophagy,
ncRNAs,
Rankl/Rank/OPG
Excessive
resorption
disrupts
balance
remodeling,
leading
increased
loss,
decreased
mineral
density
consequent
structural
damage
articular
pain.
With
understanding
biology
targeted
therapies,
researchers
have
activity
function
affected
multiple
this
review,
we
summarize
roles
mechanisms
enumerate
latest
advances
osteoclast-targeted
therapy
look
forward
future
trends
therapies
clinical
applications
fill
gaps
current
knowledge
OA
treatment
develop
new
strategies.
Biomedicine & Pharmacotherapy,
Journal Year:
2024,
Volume and Issue:
177, P. 116917 - 116917
Published: June 21, 2024
Sarcopenia
is
an
aging-related
skeletal
disease
characterized
by
decreased
muscle
mass,
strength,
and
physical
function,
severely
affecting
the
quality
of
life
(QoL)
elderly
population.
Sirtuin
1
(SIRT1),
as
a
nicotinamide
adenine
dinucleotide
(NAD+)-dependent
histone
deacetylases,
has
been
reported
to
participate
in
various
signaling
pathways
exert
protective
effect
on
many
human
diseases.
SIRT1
functioned
important
role
occurrence
progression
sarcopenia
through
regulating
key
related
protein
homeostasis,
apoptosis,
mitochondrial
dysfunction,
insulin
resistance
autophagy
muscle,
including
SIRT1/Forkhead
Box
O
(FoxO),
AMP-activated
kinase
(AMPK)/SIRT1/nuclear
factor
κB
(NF-κB),
SIRT1/p53,
AMPK/SIRT1/peroxisome
proliferator-activated
receptor
gamma
coactivator-1α
(PGC-1α),
SIRT1/live
B1
(LKB1)/AMPK
pathways.
However,
specific
mechanisms
these
processes
have
not
fully
illuminated.
Currently,
several
SIRT1-mediated
interventions
preliminarily
developed,
such
activator
polyphenolic
compounds,
exercising
calorie
restriction.
In
this
review,
we
summarized
predominant
involved
therapeutic
modalities
targeting
for
prevention
prognosis
sarcopenia.