bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 8, 2025
Abstract
Tauopathies
are
neurodegenerative
diseases
that
pathologically
characterized
by
accumulation
of
misfolded
microtubule-associated
protein
tau
aggregates
in
the
brain.
Deubiquitination,
particularly
OTULIN,
a
unique
deubiquitinase
targeting
methionine-1
(M1)
linkages
from
linear
ubiquitin
chain
assembly
complex
(LUBAC)),
is
reportedly
associated
with
neurotoxic
proteins
several
diseases,
likely
including
tauopathies.
To
investigate
potential
roles
OTULIN
tauopathies,
we
analyzed
interactome
hippocampal
tissues
PS19
transgenic
(Tg)
mice
and
their
non-transgenic
(nTg)
littermate
controls
using
affinity
purification-mass
spectrometry
(AP-MS).
We
identified
705
800
enriched
Tg
nTg
samples,
respectively,
false
discovery
rate
(FDR)
<1%.
Of
these,
189
205
were
classified
as
probable
interactors
groups,
based
on
Significance
Analysis
INTeractome
(SAINT)
score
≥0.80
FDR
≤
5%.
A
total
84
group,
while
100
controls.
Functional
enrichment
analyses
revealed
OTULIN-interacting
group
pathways
related
to
spliceosome,
complement
coagulation
cascades,
ribosome,
whereas
those
immune
response
autophagy.
These
findings
suggest
may
play
critical
role
pathogenesis
tauopathy
this
mouse
model.
Highlights
analyzed.
ribosome.
implicated
ATP2A2
an
specifically
enhanced
mice.
Frontiers in Cellular Neuroscience,
Journal Year:
2023,
Volume and Issue:
17
Published: March 6, 2023
Neuronal
loss
is
one
of
the
striking
causes
various
central
nervous
system
(CNS)
disorders,
including
major
neurodegenerative
diseases,
such
as
Alzheimer’s
disease
(AD),
Parkinson’s
(PD),
Huntington’s
(HD),
and
Amyotrophic
lateral
sclerosis
(ALS).
Although
these
diseases
have
different
features
clinical
manifestations,
they
share
some
common
mechanisms
pathology.
Progressive
regional
neurons
in
patients
responsible
for
motor,
memory,
cognitive
dysfunctions,
leading
to
disabilities
death.
cell
death
linked
pathways
conditions.
Protein
misfolding
aggregation,
mitochondrial
dysfunction,
generation
reactive
oxygen
species
(ROS),
activation
innate
immune
response
are
most
critical
hallmarks
diseases.
Thus,
endoplasmic
reticulum
(ER)
stress,
oxidative
neuroinflammation
pathological
factors
neuronal
Even
though
exact
not
fully
discovered,
notable
role
mentioned
well
known.
On
this
basis,
researchers
been
prompted
investigate
neuroprotective
effects
targeting
underlying
determine
a
promising
therapeutic
approach
treatment.
This
review
provides
an
overview
ER
death,
mainly
discussing
or
molecules
involved
factors.
Redox Biology,
Journal Year:
2024,
Volume and Issue:
70, P. 103048 - 103048
Published: Jan. 17, 2024
The
redox
process
and
cellular
senescence
are
involved
in
a
range
of
essential
physiological
functions.
However,
they
also
implicated
pathological
processes
underlying
age-related
neurodegenerative
disorders,
including
Alzheimer's
disease
(AD).
Elevated
levels
reactive
oxygen
species
(ROS)
generated
as
result
abnormal
accumulation
beta-amyloid
peptide
(Aβ),
tau
protein,
heme
dyshomeostasis
is
further
aggravated
by
mitochondria
dysfunction
endoplasmic
reticulum
(ER)
stress.
Excessive
ROS
damages
vital
components
such
proteins,
DNA
lipids.
Such
damage
eventually
leads
to
impaired
neuronal
function
cell
death.
Heightened
oxidative
stress
can
induce
via
activation
the
senescence-associated
secretory
phenotype
exacerbate
inflammation
tissue
dysfunction.
In
this
review,
we
focus
on
how
changes
system
contribute
AD
affected
perturbations
metabolism
mitochondrial
function.
While
potential
therapeutic
strategies
targeting
have
received
some
attention,
more
research
necessary
bring
them
into
clinical
application.
Ageing Research Reviews,
Journal Year:
2023,
Volume and Issue:
87, P. 101914 - 101914
Published: March 21, 2023
Protein
misfolding
is
prominent
in
early
cellular
pathology
of
Alzheimer's
disease
(AD),
implicating
pathophysiological
significance
endoplasmic
reticulum
stress/unfolded
protein
response
(ER
stress/UPR)
and
highlighting
it
as
a
target
for
drug
development.
Experimental
data
from
animal
AD
models
observations
on
human
specimens
are,
however,
inconsistent.
ER
stress
associated
UPR
are
readily
observed
vitro
some
model
animals.
In
the
brain,
components
markers
well
transducers
at
Braak
stages
III-VI
with
severe
neuropathology
neuronal
death.
The
picture,
further
complicated
by
brain
region-
cell
type-specificity
AD-related
pathology.
Terms
'disturbed'
or
'non-canonical'
stress/UPR
were
used
to
describe
discrepancies
between
experimental
classic
cascade.
Here
we
discuss
possible
'disturbing'
'interfering'
factors
which
may
modify
pathogenesis.
We
focus
dysregulation
Ca2+
homeostasis,
store-operated
entry,
interaction
mitochondria.
suggest
that
detailed
study
CNS
type-specific
alterations
homeostasis
deepen
our
understanding
dysproteostasis.
Gut Microbes,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: May 1, 2023
The
microbiota-gut-brain
axis
is
an
important
pathway
of
communication
and
may
dynamically
contribute
to
Alzheimer's
disease
(AD)
pathogenesis.
Pathological
commensal
gut
microbiota
alterations,
termed
as
dysbiosis,
can
influence
intestinal
permeability
break
the
blood-brain
barrier
which
trigger
AD
pathogenesis
via
redox
signaling,
neuronal,
immune,
metabolic
pathways.
Dysbiosis
increases
oxidative
stress.
Oxidants
affect
innate
immune
system
through
recognizing
microbial-derived
pathogens
by
Toll-like
receptors
initiating
inflammatory
process.
Most
microbiome
research
work
highlights
relationship
between
AD,
but
contributory
connection
precise
bacteria
brain
dysfunction
in
pathology
cannot
be
fully
demonstrated.
Here,
we
summarize
current
information
fundamental
connections
stress,
inflammation,
dysbiosis
AD.
This
review
emphasizes
on
involvement
regulation
responses
including
central
peripheral
cross-talk.
It
provides
insights
for
novel
preventative
therapeutic
approaches
Biomolecules,
Journal Year:
2023,
Volume and Issue:
13(1), P. 183 - 183
Published: Jan. 16, 2023
Type
2
diabetes
(T2D)
and
Alzheimer’s
diseases
(AD)
represent
major
health
issues
that
have
reached
alarming
levels
in
the
last
decades.
Although
growing
evidence
demonstrates
AD
is
a
significant
comorbidity
of
T2D,
there
~1.4–2-fold
increase
risk
developing
among
T2D
patients,
involvement
possible
common
triggers
pathogenesis
these
two
remains
largely
unknown.
Of
note,
recent
mechanistic
insights
suggest
lipotoxicity
could
missing
ring
pathogenetic
mechanisms
linking
to
AD.
Indeed,
obesity,
which
represents
main
cause
lipotoxicity,
has
been
recognized
as
factor
for
both
pathological
conditions.
Lipotoxicity
can
lead
inflammation,
insulin
resistance,
oxidative
stress,
ceramide
amyloid
accumulation,
endoplasmic
reticulum
ferroptosis,
autophagy,
are
shared
biological
events
In
current
review,
we
try
provide
critical
comprehensive
view
molecular
pathways
activated
by
AD,
attempting
summarize
how
drive
future
research
open
way
new
therapeutic
perspectives.
Alzheimer s & Dementia,
Journal Year:
2024,
Volume and Issue:
20(5), P. 3587 - 3605
Published: March 27, 2024
Despite
numerous
studies
in
the
field
of
dementia
and
Alzheimer's
disease
(AD),
a
comprehensive
understanding
this
devastating
remains
elusive.
Bulk
transcriptomics
have
provided
insights
into
underlying
genetic
factors
at
high
level.
Subsequent
technological
advancements
focused
on
single-cell
omics,
encompassing
techniques
such
as
RNA
sequencing
epigenomics,
enabling
capture
transcripts
chromatin
states
single
cell
or
nucleus
resolution.
Furthermore,
emergence
spatial
omics
has
allowed
study
gene
responses
vicinity
amyloid
beta
plaques
across
various
brain
regions.
With
vast
amount
data
generated,
utilizing
regulatory
networks
to
comprehensively
become
essential.
This
review
delves
some
employed
AD,
explores
discoveries
made
using
these
techniques,
provides
future
field.