Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 8, 2023
Abstract
Protein
arginine
methyltransferases
are
a
family
of
proteins
that
play
an
important
role
in
the
regulation
gene
expression,
mainly
involved
epigenetic
modifications
like
DNA
methylation
and
histone
acetylation.
methyltransferase
3
(PRMT)
is
member
PRMT
enzymes
various
cellular
processes,
including
transcriptional
regulation,
RNA
processing,
signal
transduction.
PRMT3
levels
considerably
enhanced
certain
types
cancers
particularly
breast,
colorectal,
lung
ovarian
cancers.
Studies
have
indicated
promotes
tumor
growth
by
activating
oncogenes
suppressing
suppressor
genes.
histone-modifying
enzyme
catalyzes
transfer
methyl
groups
from
S-adenosylmethionine
(SAM)
to
specific
residues
target
proteins,
thereby
modulating
their
function.
However,
activity
not
only
regulated
its
catalytic
domain
but
also
allosteric
mechanisms
control
enzymatic
activity.
Furthermore,
targeting
could
potentially
serve
as
therapeutic
strategy
for
treating
cancer.
This
study
focuses
on
exploring
diverse
compound
libraries
identify
potential
inhibitors
would
modify
computational
approach
involves
generation
pharmacophore
hypothesis
with
3D-QSAR
validation,
followed
virtual
screening,
docking
dynamic
simulations
potent
bioactive
compounds
inhibitors.
Virtual
screening
natural
products
revealed
top
lead
molecules
cladribine,
capecitabine,
gefitinib,
D175-0195,
F602-1150
F1361-0042.
further
validation
studies
warranted
confirm
these
findings.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(36)
Published: Nov. 16, 2023
Abstract
Protein
arginine
methyltransferase
(PRMT)
plays
essential
roles
in
tumor
initiation
and
progression,
but
its
underlying
mechanisms
the
treatment
sensitivity
of
endometrial
cancer
(EC)
remain
unclear
warrant
further
investigation.
Here,
a
comprehensive
analysis
Cancer
Genome
Atlas
database
Clinical
Proteomic
Tumor
Analysis
Consortium
identifies
that
PRMT3
an
important
role
EC.
Specifically,
experiments
show
inhibition
enhances
susceptibility
EC
cells
to
ferroptosis.
Mechanistically,
interacts
with
Methyltransferase
14
(METTL14)
is
involved
methylation.
In
addition,
inhibition‐mediated
METTL14
overexpression
promotes
methylation
modification
via
m
6
A‐YTHDF2‐dependent
mechanism,
reducing
Glutathione
peroxidase
4
(GPX4)
mRNA
stability,
increasing
lipid
peroxidation
levels,
accelerating
Notably,
combined
blockade
anti‐PD‐1
therapy
display
more
potent
antitumor
effects
by
ferroptosis
cell‐derived
xenograft
models.
The
specific
inhibitor
SGC707
exerts
same
immunotherapeutic
sensitizing
effect
patient‐derived
model.
blocking
improves
suppression
response
cisplatin
radiation
therapy.
Altogether,
this
work
demonstrates
depletion
promising
target
for
Drug Resistance Updates,
Journal Year:
2023,
Volume and Issue:
72, P. 101016 - 101016
Published: Nov. 3, 2023
Drug
resistance
remains
a
major
challenge
in
cancer
treatment,
necessitating
the
development
of
novel
strategies
to
overcome
it.
Protein
arginine
methyltransferases
(PRMTs)
are
enzymes
responsible
for
epigenetic
methylation,
which
regulates
various
biological
and
pathological
processes,
as
result,
they
attractive
therapeutic
targets
overcoming
anti-cancer
drug
resistance.
The
ongoing
small
molecules
targeting
PRMTs
has
resulted
generation
chemical
probes
modulating
most
facilitated
clinical
treatment
advanced
oncology
targets,
including
PRMT1
PRMT5.
In
this
review,
we
summarize
mechanisms
underlying
protein
methylation
roles
specific
driving
Furthermore,
highlight
potential
implications
PRMT
inhibitors
decreasing
promote
formation
maintenance
drug-tolerant
cells
via
several
mechanisms,
altered
efflux
transporters,
autophagy,
DNA
damage
repair,
stem
cell-related
function,
epithelial-mesenchymal
transition,
disordered
tumor
microenvironment.
Multiple
preclinical
trials
have
demonstrated
that
inhibitors,
particularly
PRMT5
can
sensitize
drugs,
chemotherapeutic,
targeted
therapeutic,
immunotherapeutic
agents.
Combining
with
existing
will
be
promising
approach
enhanced
knowledge
complex
functions
guide
future
may
help
identify
new
indications.
Journal of Cancer Research and Practice,
Journal Year:
2025,
Volume and Issue:
12(1), P. 1 - 5
Published: Jan. 1, 2025
Abstract
Pancreatic
cancer
is
an
aggressive
malignancy,
and
the
limited
treatment
options
contribute
to
its
high
mortality
rate.
In
2023,
it
ranked
as
seventh
leading
cause
of
cancer-related
deaths
in
Taiwan,
with
similar
incidence
rates
highlighting
need
for
novel
therapies.
Recent
next-generation
sequencing
studies
have
identified
highly
variable
(or
high-frequency
mutation)
genes
pancreatic
cells,
including
KRAS
,
TP53
CDKN2A
SMAD4
.
Several
defective
or
low-frequency-mutated
also
been
tumor
tissues;
however,
their
roles
contributions
tumorigenesis
remain
poorly
characterized.
Furthermore,
remains
unclear
whether
patients
harboring
these
are
susceptible
specific
targeted
therapies
combination
treatments.
This
study
focuses
on
understanding
potential
therapeutic
targets.
this
study,
we
review
relevant
published
by
our
groups
past
5
years.
Using
various
molecular
genetic
approaches,
oncogenic/tumor-suppressive
several
tumorigenesis.
These
findings
support
development
precision
targeting
alterations
cancer.
Identifying
actionable
targets
provides
a
basis
creating
tailored
treatments
improve
survival
outcomes.
Frontiers in Cell and Developmental Biology,
Journal Year:
2025,
Volume and Issue:
13
Published: April 24, 2025
Osteoporosis
(OP),
a
systemic
bone
disease
characterised
by
increased
fragility
and
susceptibility
to
fracture,
is
mainly
caused
decline
in
mineral
density
(BMD)
quality
an
imbalance
between
formation
resorption.
Protein
arginine
methyltransferases
(PRMTs)
are
epigenetic
factors
post-translational
modification
(PTM)
enzymes
participating
various
biological
processes,
including
mRNA
splicing,
DNA
damage
repair,
transcriptional
regulation,
cell
signalling.
They
act
catalysing
the
transfer
of
residues
and,
thus,
have
become
therapeutic
targets
for
OP.
In-depth
studies
found
that
these
also
play
key
roles
matrix
protein
metabolism,
skeletal
proliferation
differentiation,
signal
pathway
regulation
regulate
formation,
resorption
balance,
or
both
jointly
maintain
health
stability.
However,
expression
changes
mechanisms
action
multiple
members
PRMT
family
differ
Therefore,
this
paper
discusses
functions,
action,
influencing
PRMTs
OP,
which
expected
provide
new
understanding
pathogenesis
Furthermore,
we
present
theoretical
support
development
more
precise
effective
treatment
strategies
as
well
further
study
molecular
PRMTs.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 8, 2025
Abstract
Primary
age‐related
tauopathy
(PART)
and
Alzheimer's
disease
(AD)
both
exhibit
3R/4R
hyperphosphorylated
tau‐positive
neurofibrillary
tangles
(NFTs)
within
the
hippocampal–entorhinal
system.
Notably,
PART
patients
show
a
higher
degree
of
tau
hyperphosphorylation
in
entorhinal
cortex
(EC)
than
AD,
yet
molecular
mechanisms
driving
Aβ‐independent
remain
poorly
understood.
Herein,
through
transcriptomic
profiling
postmortem
EC
tissues
vitro
vivo
functional
validation,
present
study
identifies
protein
arginine
methyltransferase
3
(PRMT3)
as
critical
driver
hyperphosphorylation.
Mechanistically,
PRMT3‐mediated
is
dependent
on
asymmetric
dimethylation
histone
H4
at
(H4R3me2a),
which
upregulates
miR‐448.
Elevated
miR‐448
specifically
targets
suppresses
IGF1R,
leading
to
downstream
GSK3β
activation
subsequent
PI3K/AKT/GSK3β
signaling.
Treatment
with
SGC707,
selective
PRMT3
inhibitor,
effectively
reduces
demonstrates
therapeutic
promise
for
potentially
other
tauopathies.
Collectively,
this
defines
PRMT3/H4R3me2a/miR‐448
axis
regulatory
pathway
PART,
underscoring
potential
inhibition
targeted
strategy