Therapeutic Potential of PRMT1 as a Critical Survival Dependency Target in Multiple Myeloma
Tabish Hussain,
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Sharad Awasthi,
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Fauzia Shahid
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et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 1, 2025
Abstract
Multiple
myeloma
(MM)
is
a
neoplasm
of
antibody-producing
plasma
cells
and
the
second
most
prevalent
hematological
malignancy
worldwide.
Development
drug
resistance
disease
relapse
significantly
impede
success
MM
treatment,
highlighting
critical
need
to
discover
novel
therapeutic
targets.
In
custom
CRISPR/Cas9
screen
targeting
197
DNA
damage
response-related
genes,
Protein
Arginine
N-Methyltransferase
1
(PRMT1)
emerged
as
top
hit,
revealing
it
potential
vulnerability
survival
dependency
in
cells.
PRMT1,
major
Type
I
PRMT
enzyme,
catalyzes
asymmetric
transfer
methyl
groups
arginine
residues,
influencing
gene
transcription
protein
function
through
post-translational
modification.
Dysregulation
or
overexpression
PRMT1
has
been
observed
various
malignancies
including
linked
chemoresistance.
Treatment
with
inhibitor
GSK3368715
resulted
dose-dependent
reduction
cell
across
panel
lines.
This
was
accompanied
by
reduced
levels
dimethylation
(ADMA)
increased
monomethylation
(MMA)
Cell
cycle
analysis
revealed
an
accumulation
G0/G1
phase
S
upon
treatment.
Additionally,
inhibition
led
significant
downregulation
genes
involved
proliferation,
replication,
response
(DDR),
likely
inducing
genomic
instability
impairing
tumor
growth.
supported
Reverse
Phase
Array
(RPPA)
analyses,
which
proteins
associated
regulation
DDR
pathways.
Overall,
our
findings
indicate
that
critically
depend
on
for
survival,
treating
MM.
Language: Английский
Oligomerization of protein arginine methyltransferase 1 and its effect on methyltransferase activity and substrate specificity
Vincent Rossi,
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Sarah E. Nielson,
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Ariana Ortolano
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et al.
Protein Science,
Journal Year:
2024,
Volume and Issue:
33(8)
Published: July 18, 2024
Abstract
Proper
protein
arginine
methylation
by
methyltransferase
1
(PRMT1)
is
critical
for
maintaining
cellular
health,
while
dysregulation
often
associated
with
disease.
How
the
activity
of
PRMT1
regulated
therefore
paramount,
but
not
clearly
understood.
Several
studies
have
observed
higher
order
oligomeric
species
PRMT1,
it
unclear
if
these
exist
at
physiological
concentrations
and
there
confusion
in
literature
about
how
oligomerization
affects
activity.
We
sought
to
determine
which
are
physiologically
relevant,
quantitatively
correlate
specific
oligomer
forms.
Through
quantitative
western
blotting,
we
determined
that
available
a
variety
human
cell
lines
sub‐micromolar
low
micromolar
range.
Isothermal
spectral
shift
binding
data
were
modeled
monomer/dimer/tetramer
equilibrium
an
EC
50
tetramer
dissociation
~20
nM.
A
combination
sedimentation
velocity
Native
polyacrylamide
gel
electrophoresis
experiments
directly
confirmed
major
would
be
dimers
tetramers.
Surprisingly,
dimeric
variant
similar
wild
type,
tetrameric
some
purified
substrates,
dimer
forms
show
differences
catalytic
efficiencies
substrate
specificity
other
substrates.
Our
results
define
paradigm
biophysical
characteristics
poised
support
vivo,
suggest
state
could
used
regulate
specificity.
Language: Английский
PRMT1‐mediated BRD4 arginine methylation and phosphorylation promote partial epithelial–mesenchymal transformation and renal fibrosis
C.-L. Xiong,
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Haishan Chen,
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Baoting Su
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et al.
The FASEB Journal,
Journal Year:
2025,
Volume and Issue:
39(1)
Published: Jan. 7, 2025
Bromodomain-containing
protein
4
(BRD4)
plays
a
vital
role
in
fibrosis
of
various
organs.
However,
the
underlying
mechanism
BRD4
renal
remains
unclear.
To
construct
vitro
and
vivo
models
fibrosis,
TCMK-1
cells
were
subjected
to
TGF-β1
treatment
mice
UUO
surgery
adenine
induction.
IP
assay
was
used
for
arginine
asymmetric
dimethylation
(ADMA)
level,
ubiquitination
degradation
Snail,
acetylation
level
Snail
test.
Co-IP
validate
interactions
BRD4,
methyltransferase-1
(PRMT1),
Snail.
HE
staining
Masson
morphological
examination
tissue.
abnormally
overexpressed
during
fibrosis.
TGF-β1-induced
partial
epithelial-mesenchymal
transition
(pEMT)
could
be
inhibited
by
silencing.
PRMT1
mediated
ADMA
enhance
phosphorylation
its
stability.
attenuated
overexpression
an
acetylation-dependent
manner
cells.
Furthermore,
inhibitor
abolished
overexpression-induced
pEMT
TGF-β1-treated
reversed
silencing-induced
inhibition
pEMT.
What's
more,
reduction
methylation
expression
alleviate
induction
mice.
Collectively,
PRMT1-mediated
promoted
through
regulation
expression.
Language: Английский
Overview of PRMT1 Modulators: Inhibitors and Degraders
Jun Wu,
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Deping Li,
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Li‐Fang Wang
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et al.
European Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
279, P. 116887 - 116887
Published: Sept. 20, 2024
Language: Английский
CRISPR screening identifies PRMT1 as a key pro-ferroptotic gene via a two-layer regulatory mechanism
Xin Zhang,
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Yajun Duan,
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Li Su
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et al.
Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(9), P. 114662 - 114662
Published: Aug. 23, 2024
Ferroptosis
is
a
form
of
nonapoptotic
cell
death
characterized
by
iron-dependent
peroxidation
polyunsaturated
phospholipids.
However,
much
remains
unknown
about
the
regulators
ferroptosis.
Here,
using
CRISPR-Cas9-mediated
genetic
screening,
we
identify
protein
arginine
methyltransferase
1
(PRMT1)
as
crucial
promoter
We
find
that
PRMT1
decreases
expression
solute
carrier
family
7
member
11
(SLC7A11)
to
limit
abundance
intracellular
glutathione
(GSH).
Moreover,
show
interacts
with
ferroptosis
suppressor
(FSP1),
GSH-independent
suppressor,
inhibit
membrane
localization
and
enzymatic
activity
FSP1
through
dimethylation
at
R316,
thus
reducing
CoQ10H2
content
inducing
sensitivity.
Importantly,
depletion
or
pharmacological
inhibition
in
mice
prevents
ferroptotic
events
liver
improves
overall
survival
under
concanavalin
A
(ConA)
exposure.
Hence,
our
findings
suggest
key
regulator
potential
target
for
antiferroptosis
therapeutics.
Language: Английский
Metformin suppresses gastric cancer progression by disrupting the STAT1-PRMT1 axis
Kaiqing Wang,
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Yanyan Chen,
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Meimei Zhang
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et al.
Biochemical Pharmacology,
Journal Year:
2024,
Volume and Issue:
226, P. 116367 - 116367
Published: June 12, 2024
Language: Английский
The Role of PRMT1 in Cellular Regulation and Disease: Insights into Biochemical Functions and Emerging Inhibitors for Cancer Therapy
Shenglin Ma,
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Shuhua Yi,
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Hui Zou
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et al.
European Journal of Pharmaceutical Sciences,
Journal Year:
2024,
Volume and Issue:
204, P. 106958 - 106958
Published: Nov. 7, 2024
Protein
Arginine
Methyltransferase
1
(PRMT1),
a
primary
protein
arginine
methyltransferase,
plays
pivotal
role
in
cellular
regulation,
influencing
processes
such
as
gene
expression,
signal
transduction,
and
cell
differentiation.
Dysregulation
of
PRMT1
has
been
linked
to
the
development
various
cancers,
establishing
it
key
target
for
therapeutic
intervention.
This
review
synthesizes
biochemical
characteristics,
structural
domains,
functional
mechanisms
PRMT1,
focusing
on
its
involvement
tumorigenesis.
Additionally,
efficacy
emerging
inhibitors
potential
cancer
therapies
are
examined.
By
employing
molecular
modeling
insights
from
existing
literature,
this
posits
that
targeting
PRMT1's
methyltransferase
activity
could
disrupt
progression,
providing
valuable
future
drug
development.
Language: Английский