Fibroblast growth factor receptor 3 mutation promotes HSPB6-mediated cuproptosis in hypochondroplasia by impairing chondrocyte autophagy
Jing Chen,
No information about this author
Dan He,
No information about this author
Chengrun Yuan
No information about this author
et al.
Journal of Orthopaedic Translation,
Journal Year:
2025,
Volume and Issue:
51, P. 68 - 81
Published: Feb. 4, 2025
Language: Английский
Characterizing mitochondrial features in osteoarthritis through integrative multi-omics and machine learning analysis
Yinteng Wu,
No information about this author
Haifeng Hu,
No information about this author
Tao Wang
No information about this author
et al.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: July 4, 2024
Purpose
Osteoarthritis
(OA)
stands
as
the
most
prevalent
joint
disorder.
Mitochondrial
dysfunction
has
been
linked
to
pathogenesis
of
OA.
The
main
goal
this
study
is
uncover
pivotal
role
mitochondria
in
mechanisms
driving
OA
development.
Materials
and
methods
We
acquired
seven
bulk
RNA-seq
datasets
from
Gene
Expression
Omnibus
(GEO)
database
examined
expression
levels
differentially
expressed
genes
related
utilized
single-sample
gene
set
enrichment
analysis
(ssGSEA),
(GSEA),
weighted
co-expression
network
(WGCNA)
analyses
explore
functional
associated
with
these
genes.
Seven
machine
learning
algorithms
were
identify
hub
mitochondria-related
develop
a
predictive
model.
Further
included
pathway
enrichment,
immune
infiltration,
gene-disease
relationships,
mRNA-miRNA
construction
based
on
genome-wide
association
studies
(GWAS)
was
performed
using
Atlas
database.
GSEA,
variation
(GSVA),
protein
analysis,
WGCNA
employed
investigate
relevant
pathways
subtypes.
Harmonizome
analyze
across
various
human
tissues.
Single-cell
data
conducted
examine
patterns
distribution
pseudo-temporal
changes.
Additionally,
real-time
polymerase
chain
reaction
(RT-PCR)
used
validate
Results
In
OA,
significantly
activated.
Nine
(SIRT4,
DNAJC15,
NFS1,
FKBP8,
SLC25A37,
CARS2,
MTHFD2,
ETFDH,
PDK4)
identified.
They
constructed
models
good
ability
predict
These
are
primarily
macrophages.
Unsupervised
consensus
clustering
identified
two
mitochondria-associated
isoforms
that
metabolism.
showed
they
all
single
cells
varied
cell
differentiation.
RT-PCR
Conclusion
SIRT4,
PDK4
potential
mitochondrial
target
for
studying
classification
could
help
personalize
treatment
patients.
Language: Английский
Identification and validation of transcriptome-wide association study-derived genes as potential druggable targets for osteoarthritis
Bone and Joint Research,
Journal Year:
2025,
Volume and Issue:
14(3), P. 224 - 235
Published: March 13, 2025
Aims
Osteoarthritis
(OA)
is
a
widespread
chronic
degenerative
joint
disease
with
an
increasing
global
impact.
The
pathogenesis
of
OA
involves
complex
interactions
between
genetic
and
environmental
factors.
Despite
this,
the
specific
mechanisms
underlying
remain
only
partially
understood,
hindering
development
targeted
therapeutic
strategies.
Methods
A
transcriptome-wide
association
study
(TWAS)
was
conducted
for
site-specific
phenotypes
using
functional
summary-based
imputation
(FUSION).
High-confidence
candidate
genes
were
identified
through
rigorous
quality
control
measures,
including
joint/conditional
analysis,
permutation
tests,
best
model
evaluation,
colocalization
analysis.
Co-expression
network
analysis
performed
to
elucidate
biology
these
genes.
Druggable
gene
targets
their
structural
models
retrieved
from
DrugBank
SWISS-MODEL
databases.
Finally,
enrichment
mitogen-activated
protein
kinase
3
(
MAPK3
)
SMAD3
in
validated
biochemically
vitro
vivo
models,
as
well
human
histological
sections.
Results
Utilizing
FUSION
algorithm,
TWAS
794
OA.
After
control,
14
classified
high-confidence
genes,
seven
recognized
potential
drug
GCAT,
MAPK3,
MST1R,
PFKM,
RAD9A,
SMAD3,
USAP8
.
revealed
strong
biological
Both
experiments
demonstrated
high
activity
enriched
expression
two
Conclusion
present
tissue-specific
druggable
OA,
providing
new
insights
into
landscape
processes
involved
Further
studies
are
warranted
confirm
findings.
Cite
this
article:
Bone
Joint
Res
2025;14(3):224–235.
Language: Английский
Fibroblast growth factor 8 (FGF8) induces mitochondrial remodeling in chondrocytes via ERK/AMPK signaling pathway
The FASEB Journal,
Journal Year:
2025,
Volume and Issue:
39(7)
Published: March 31, 2025
Abstract
Osteoarthritis
(OA)
is
a
disease
characterized
by
articular
cartilage
degeneration,
and
its
pathogenic
mechanisms
are
associated
with
mitochondrial
homeostasis
disorders.
Fibroblast
growth
factor
8
(FGF8)
multipotent
protein
ligand
which
upregulated
in
OA
cartilage.
However,
the
molecular
FGF8
regulates
mitochondria
chondrocytes
not
yet
fully
understood.
Here,
we
treated
detected
effects
of
on
morphology
cytoplasm
using
transmission
electron
confocal
laser
scanning
microscopy.
ATP
levels
were
measured
to
determine
cellular
energy
status.
Western
blotting
immunofluorescence
staining
experiments
employed
detect
fusion‐fission
proteins
mitofusin
1
(MFN1),
2
(MFN2),
optic
atrophy
(OPA1),
dynamin‐related
(DRP1),
fission
(FIS1),
related
signaling
pathways.
The
FGF
receptor
(FGFR)
inhibitor,
AZD4547,
ERK
U0126,
used
verify
specific
FGFR
We
found
that
regulated
dynamics
inducing
elongation.
While
it
fusion
MFN1,
MFN2,
OPA1,
downregulated
DRP1
FIS1.
AMPK
pathways
activated
after
treatment.
In
contrast,
both
AZD4547
U0126
inhibitors
abolished
elongation
as
well
alteration
induced
FGF8,
also
inhibited
FGF8‐triggered
activation
AMPK.
This
study
first
reveal
remodels
through
ERK/AMPK
chondrocytes,
offering
novel
insights
into
potential
role
OA.
Language: Английский
TGF‐β3 mediates mitochondrial dynamics through the p‐Smad3/AMPK pathway
Xinmei Du,
No information about this author
Mengmeng Duan,
No information about this author
Shiyi Kan
No information about this author
et al.
Cell Proliferation,
Journal Year:
2023,
Volume and Issue:
57(5)
Published: Nov. 27, 2023
Abstract
It
is
well
recognized
that
mitochondrial
dynamics
plays
a
vital
role
in
cartilage
physiology.
Any
perturbation
could
cause
disorders
metabolism
and
even
lead
to
the
occurrence
of
diseases
such
as
osteoarthritis
(OA).
TGF‐β3,
an
important
growth
factor
appears
joints
OA
disease,
shows
its
great
potential
chondrocyte
metabolism.
Nevertheless,
TGF‐β3
on
still
not
understood.
Here
we
aimed
investigate
effect
chondrocytes
reveal
underlying
bio‐mechanism.
By
using
transmission
electron
microscopy
(TEM)
for
number
morphology
mitochondria,
western
blotting
protein
expressions,
immunofluorescence
cytoplasmic
distributions
proteins,
RNA
sequencing
transcriptome
changes
related
dynamics.
We
found
increase
mitochondria
chondrocytes.
TGF‐β3‐enhanced
was
via
promoting
fission.
The
fission
induced
by
mediated
AMPK
signaling.
activated
canonical
p‐Smad3
signaling
resultantly
AMPK‐induced
Taken
together,
these
results
elucidate
understanding
provide
cues
therapeutic
strategies
injury
disease
terms
energy
Language: Английский
The Potential Influence of Immune Modulatory Molecules (TGF-βIII and CTLA-4) in Pathogenicity of PCOS
Mustafa Riyadh Abdullah,
No information about this author
Hazima Mossa Alabassi
No information about this author
Karbala International Journal of Modern Science,
Journal Year:
2024,
Volume and Issue:
10(3)
Published: July 24, 2024
Polycystic
ovary
syndrome
(PCOS)
is
characterised
by
chronic
anovulation,
hyperandrogenism,
polycystic
ovaries,
and
immunological
dysregulation.
Immune
homeostasis
inflammation
management
require
immune
functions.
T-regulatory
cells
(Tregs)
regulate
PCOS's
system,
inflammation,
insulin
resistance,
ovarian
function,
homeostasis.
Transforming
growth
factor
βIII
(TGF-βIII)
Cytotoxic-T-lymphocyte-associated-protein-4
(CTLA-4)
receptors
on
the
surfaces
of
Treg
are
important
for
controlling
system.
The
study
included
68
PCOS
patients
22
non-PCOS
women
controls
aged
20–45.
waist-hip
ratio
(WHR)
determines
obesity.
We
evaluated
serum
levels
gene
expression
TGF-βIII
CTLA-4
via
ELISA
real-time
PCR.
Women
with
had
significantly
higher
compared
to
controls.
reveals
a
considerable
increase
in
control.
Compared
controls,
<
>
25
TGF-III
concentrations.
According
RT-PCR
test,
(>
25)
much
amounts
than
also
increased
WHR
at
0.8
results
showed
that
obese
(>0.8)
Based
clinical
signs,
folding
were
who
irregular
periods
whose
cycles
normal.
These
data
indicate
role
etiology.
This
suggests
targeting
immunotherapy.
Language: Английский