Brain and Behavior,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Dec. 31, 2024
Abstract
Background
Previous
studies
have
confirmed
the
significant
role
of
cathepsins
in
development
neurodegenerative
diseases.
We
aimed
to
determine
whether
genetically
predicted
10
may
a
causal
effect
on
Alzheimer's
disease
(AD),
Parkinson's
(PD),
and
amyotrophic
lateral
sclerosis
(ALS).
Methods
conducted
two‐sample
bidirectional
Mendelian
randomization
(MR)
study
using
publicly
available
data
from
genome‐wide
association
(GWAS)
assess
associations
between
three
diseases,
including
AD,
PD,
ALS.
employed
following
methods,
inverse
variance
weighting
(IVW),
MR‐Egger,
weighted
median
(WM).
The
results
were
further
validated
sensitivity
analysis.
Results
forward
MR
analysis
indicate
that
elevated
cathepsin
H
levels
increase
risk
AD
(
p
=
0.005,
odds
ratio
[OR]
1.040,
95%
confidence
interval
[CI]
1.011–1.069),
B
decrease
PD
<
0.001,
OR
0.890,
CI
0.831–0.954),
no
was
found
Reverse
suggests
there
is
Conclusion
Our
provides
new
genetic
insights
into
PD.
However,
our
findings
need
be
wider
population,
future
research
should
explore
potential
mechanisms
these
diseases
order
provide
basis
for
therapeutic
strategies.
Skin Research and Technology,
Journal Year:
2024,
Volume and Issue:
30(8)
Published: Aug. 1, 2024
Abstract
Background
Several
cathepsins
have
been
identified
as
being
involved
in
the
development
of
cancer.
Nevertheless,
connection
between
and
skin
cancers
remained
highly
elusive.
Methods
A
bidirectional
Mendelian
randomization
(MR)
analysis
was
performed
to
investigate
causal
association
malignancies.
The
genome‐wide
studies
(GWAS)
data
for
cathepsins,
malignant
melanoma
(MM),
basal
cell
carcinoma
(BCC)
were
obtained
from
European
research.
primary
method
employed
inverse
variance
weighted.
In
addition,
MR‐Egger,
weighted
median,
mode,
simple
mode
also
executed.
Sensitivity
using
Cochran's
Q
test,
MR‐PRESSO.
Results
From
univariable
MR
(UVMR),
cathepsin
H,
S
determined
a
relationship
with
BCC.
Additionally,
H
associated
MM.
Multivariable
(MVMR)
showed
that
after
correcting
risk
factors
carcinoma,
detected
be
protective
against
BCC,
whereas
has
observed
factor
No
substantial
pleiotropy
heterogeneity
sensitivity
analysis.
Conclusion
This
study
first
establish
direct
link
Cathepsin
potential
serve
new
biomarkers
offering
valuable
assistance
prompt
identification,
treatment,
prevention
disease.
additional
clinical
trials
are
required
validate
our
findings.
Journal of Inflammation Research,
Journal Year:
2024,
Volume and Issue:
Volume 17, P. 5871 - 5887
Published: Aug. 1, 2024
Background:
Diabetic
foot
ulcer
(DFU)
is
a
serious
clinical
problem
with
high
amputation
and
mortality
rates,
yet
there
lack
of
desirable
therapy.While
the
extracellular
matrix
(ECM)
contributes
significantly
to
wound
healing,
ECM-related
biomarker
for
DFU
still
unknown.The
study
was
designed
identify
in
using
bioinformatics
machine
learning
validate
it
STZ-induced
mice
models.Methods:
GSE80178
GSE134431
microarray
datasets
were
fetched
from
GEO
database,
differentially
expressed
genes
(DEGs)
analysis
performed,
respectively.By
analyzing
DEGs
ECM
genes,
we
identified
DEGs,
functional
enrichment
conducted.Subsequently,
three
algorithms
(LASSO,
RF
SVM-RFE)
applied
filter
key
biomarkers.Next,
conducted
immune
infiltration
analysis,
GSEA,
correlation
explore
hub
gene
underlying
mechanism.A
lncRNA-miRNA-mRNA
drug
regulatory
network
constructed.Finally,
validated
models.Results:
One
hundred
forty-five
common
adult
between
two
identified.Taking
intersection
145
964
13
DEGs.Thirteen
mainly
enriched
pathways
associated
tissue
remodeling,
inflammation
defense
against
infectious
agents.Ultimately,
CTSH
as
biomarker.CTSH
difference
cells
during
occurrence
development
DFU,
influenced
hedgehog,
IL-17
TNF
signaling
pathway.Additionally,
expression
correlated
many
ECM-and
immune-related
genes.A
constructed
10
lncRNAs,
2
miRNAs,
1
drug.Finally,
animal
models.Conclusion:
Our
found
that
can
be
used
both
diagnostic
prognostic
purposes
might
potential
therapeutic
target.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Oct. 1, 2024
Background
Diabetic
retinopathy
(DR)
is
a
major
microvascular
complication
of
diabetes
and
leading
cause
blindness
worldwide.
The
pathogenesis
DR
involves
complex
interactions
between
metabolic
disturbances,
immune
cells,
proteolytic
enzymes
such
as
cathepsins
(CATs).
Despite
various
studies,
the
precise
roles
different
CATs,
metabolites,
vitamins
in
remain
unclear.
Method
In
this
study,
we
employed
Mendelian
Randomization
(MR)
to
assess
causal
relationships
using
genetic
instruments
selected
based
on
genome-wide
association
studies
(GWAS).
We
two-sample
mediation
MR
explore
effects
nine
vitamins,
DR.
Additionally,
study
also
incorporated
data
from
NHANES
survey
associated
relationship
utilized
cross-sectional
analyze
vitamin
intake
diabetic
(DR),
adjusting
for
potential
confounders
strengthen
validity
our
findings.
Results
analysis
identified
CAT
H
significant
risk
factor
both
NPDR
PDR,
with
no
evidence
reverse
causality.
62
cell
traits
were
found
have
49
PDR.
Enrichment
revealed
that
pathways
sphingolipid
metabolism
are
crucial
progression.
Vitamins
B6
E
significantly
reduced
Cross-sectional
indicated
B1,
B2,
B6,
B12,
progressively
decreased
severity.
Conclusion
This
first
identify
key
DR,
while
showed
protective
effects,
particularly
against
These
findings
suggest
H,
along
E,
could
serve
therapeutic
targets
Further
validation
through
larger,
multi-center
recommended
enhance
accuracy
applicability
these
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(16), P. 12645 - 12645
Published: Aug. 10, 2023
Acid
sphingomyelinase
deficiency
(ASMD)
or
Niemann–Pick
disease
type
A
(NPA),
B
(NPB)
and
A/B
(NPA/B),
is
a
rare
lysosomal
storage
characterized
by
progressive
accumulation
of
sphingomyelin
(SM)
in
the
liver,
lungs,
bone
marrow
and,
severe
cases,
neurons.
model
was
established
generating
liver
organoids
from
NPB
patient
carrying
p.Arg610del
variant
SMPD1
gene.
Liver
were
transcriptomic
lipidomic
analysis.
We
observed
altered
lipid
homeostasis
patient-derived
showing
predictable
increase
(SM),
together
with
cholesterol
esters
(CE)
triacylglycerides
(TAG),
reduction
phosphatidylcholine
(PC)
cardiolipins
(CL).
Analysis
gene
expression
pointed
to
24
downregulated
genes,
including
SMPD1,
26
upregulated
genes
that
reflect
stress
typical
disease.
Altered
revealed
reduced
enzymes
could
be
involved
hepatocytes
sphyngoglycolipids
glycoproteins,
as
well
coding
for
different
glycosidases
cathepsins.
Lipidic
transcriptome
changes
support
use
hepatic
ideal
models
ASMD
investigation.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 3, 2024
Abstract
Objective:
The
cathepsin
present
in
lysosomal
cells
may
be
closely
related
to
bone,
muscle
&
joint
diseases
(BMJD)including
osteoporosis
and
osteoarthritis,
but
its
specific
mechanism
of
action
still
needs
further
research
exploration.
aim
this
study
is
use
a
two-sample
Mendelian
randomization
(MR)
comprehensive
analysis
explore
the
causal
relationship
between
risk
BMJD.
Method:
Based
on
published
genetic
data,
used
method
causality
morbidity
9
cathepsins
with
rheumatoid
arthritis,
ankylosing
spondylitis,
peripheral
arthritis(Crohn's
disease,
ulcerative
colitis,
postdysentery
disease),
psoriatic
lower
back
pain,
spinal
stenosis,
osteoporosis,
bone
necrosis,
connective
tissue
cartilage
diseases,
benign
tumors,
myositis,
synovitis
tenosynovitis
(radial
styloid
tenosynovitis),
shoulder
periarthritis,
neuromuscular
junction
atrophy.
Meanwhile,
order
reveal
possibility
reverse
causality,
we
conducted
analysis,using
Cochran's
Q
test
MR
Egger
intercept
evaluate
heterogeneity,
horizontal
pleiotropy,and
stability
SNPs.
Result:
found
that
B
negatively
correlated
colitis
E
positively
musculoskeletal
G
L2
Cathepsin
S
arthritis;
through
analysis,
lead
an
increase
B.
In
addition,
did
not
find
any
synovitis,
tenosynovitis,
neuritis,
osteoporosis,Crohn's
arthritis,dysentery
low
pain,and
cathepsin.
Conclusion:
large-scale
population
studies
GWAS
demonstrated
close
BMJD
from
perspective,
which
provide
basis
for
pathogenesis
new
directions
future
treatment
strategies.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 28, 2024
Abstract
Background
Observational
studies
indicate
a
strong
association
between
most
neurodegenerative
disorders
and
cathepsin,
although
the
causative
link
remains
unclear.
Methods
This
research
utilized
Mendelian
Randomization
(MR)
with
genetic
markers
linked
to
cathepsins
as
instrumental
variables,
analyzed
public
Genome-Wide
Association
Studies
(GWASs)
summary
data
of
individuals
European
ancestry
for
Alzheimer's
disease
(AD),
Parkinson's
(PD),
dementia
Lewy
bodies
(DLB)
outcomes.
The
study
applied
inverse
variance-weighted
(IVW)
method
assess
causal
effects
on
AD,
PD,
DLB.
Several
sensitivity
analyses
heterogeneity
test
were
conducted
evaluate
effectiveness
results.
Confounding
variables
accounted
using
multivariable
MR
(MVMR).
Additionally,
reverse
was
done
improve
forward
analysis.
Lastly,
we
utilize
Bayesian
Weighted
(BWMR)
further
validate
robustness
Results
investigation
found
an
cathepsin
H
AD
DLB
risk.
However,
there
negative
correlation
PD
risk
B
levels.
Effect
estimates
in
MVMR
BWMR
remained
constant.
According
analysis,
decreased
levels,
negatively
correlated
Z
no
relationship
cathepsins.
Conclusion
While
higher
levels
associated
risk,
bidirectional
B.
By
studying
how
influences
development
advancement
DLB,
novel
methods
diagnosis
treatment
might
be
investigated.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 5, 2024
Abstract
Background
The
pathogenesis
of
idiopathic
pulmonary
fibrosis
(IPF)
is
complex
and
difficult
to
diagnose
treat
clinically.
Cathepsins
are
involved
in
various
physiological
pathological
processes,
observational
studies
have
shown
an
association
between
cathepsins
IPF.
However,
the
causal
relationship
them
remains
uncertain.
Our
aim
was
assess
Methods
Protein
quantitative
trait
loci
(pQTL)
data
for
were
obtained
from
INTERVAL
studies,
summary
statistics
IPF
genome-wide
(GWAS)
FinnGen
R10
study.
Univariable
Mendelian
randomization
(UVMR),
multivariable
(MVMR),
data-based
(SMR)
Bayesian
colocalization
analysis
conducted
this
Results
UVMR
indicated
that
elevated
cathepsin
H
levels
reduced
overall
risk
(OR
=
0.885,95%CI
0.827
~
0.947,
P
3.86×10
−
4).
MVMR
showed
effect
on
still
present
after
adjusting
interaction
0.895,95%CI
0.834
0.961,
0.002).
In
addition,
SMR
also
suggested
a
0.800,95%CI
0.699
0.916,
0.001).
Finally,
we
validated
results
using
UK
Biobank
Pharma
Proteomics
Project
(UKB-PPP)
dataset
0.897,95%CI
0.836
0.963,
0.003).
Conclusions
This
study
suggests
has
protective
may
serve
as
potential
therapeutic
target
IPF,
providing
inspiration
guidance
diagnosis
treatment
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: July 30, 2024
Osteoarthritis
(OA)
is
a
chronic
disease
due
to
the
deterioration
of
cartilage
structure
and
function,
involving
progressive
degradation
extracellular
matrix.
Cathepsins,
lysosomal
cysteine
proteases,
play
pivotal
roles
in
various
biological
pathological
processes,
particularly
protein
degradation.
Excess
cathepsins
levels
are
reported
contribute
development
OA.
However,
causal
relationship
between
cathepsin
family
knee
hip
OA
remains
uncertain.
Therefore,
this
study
utilized
bidirectional
Mendelian
Randomization
(MR)
analyses
explore
association.
Our
results
indicated
that
elevated
serum
O
increase
overall
risk
OA,
while
increased
H
enhance
Conversely,
reverse
MR
did
not
reveal
them.
In
summary,
different
anatomical
locations
may
genetically
result
from
elevations
isoforms,
which
could
be
as
diagnostic
therapeutic
targets
clinical
practice.