Cellular Epigenetic Targets and Epidrugs in Breast Cancer Therapy: Mechanisms, Challenges, and Future Perspectives
Pharmaceuticals,
Год журнала:
2025,
Номер
18(2), С. 207 - 207
Опубликована: Фев. 3, 2025
Breast
cancer
is
the
most
common
malignancy
affecting
women,
manifesting
as
a
heterogeneous
disease
with
diverse
molecular
characteristics
and
clinical
presentations.
Recent
studies
have
elucidated
role
of
epigenetic
modifications
in
pathogenesis
breast
cancer,
including
drug
resistance
efflux
characteristics,
offering
potential
new
diagnostic
prognostic
markers,
treatment
efficacy
predictors,
therapeutic
agents.
Key
include
DNA
cytosine
methylation
covalent
modification
histone
proteins.
Unlike
genetic
mutations,
reprogramming
landscape
epigenome
promising
targeted
therapy
for
reversal
resistance.
Epidrugs,
which
target
modifications,
can
provide
novel
options
by
reversing
acquired
to
treatment.
Currently,
approach
involves
combination
therapies
consisting
epidrugs
immune
checkpoint
inhibitors.
This
review
examines
aberrant
regulation
initiation
progression,
focusing
on
related
estrogen
signaling,
resistance,
epithelial–mesenchymal
transition
(EMT).
It
existing
drugs
treating
agents
that
modify
DNA,
inhibitors
acetyltransferases,
deacetylases,
methyltransferases,
demethyltransferases.
also
delves
into
ongoing
combining
other
addresses
upcoming
obstacles
this
field.
Язык: Английский
Gene expression associated with endocrine therapy resistance in estrogen receptor-positive breast cancer
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 28, 2025
Despite
endocrine
therapy
(ET),
approximately
20–40%
of
Stage
I–III
estrogen
receptor-positive
breast
cancer
(ER
+
BC)
patients
experience
recurrence.
Recurrence
while
on
ET
is
indicative
resistance.
This
study
aimed
to
identify
differentially
expressed
genes
(DEGs)
associated
with
recurrence
during
(ET
resistance)
and
explore
gene
expression
differences
across
PAM50
molecular
subtypes.
Eighty
tumor
specimens
from
79
treated
at
the
City
Hope
Comprehensive
Cancer
Center
(2012–2016)
were
analyzed
using
NanoString
technology.
Fourteen
(17.7%)
experienced
over
a
median
follow-up
68
months
(range
35–104
months).
Key
upregulated
DEGs
in
group
included
EZH2
(log2
fold
change[log2FC]:
0.67,
p
=
0.0017),
WNT11
(log2FC:
1.08,
0.0088),
ITGB6
0.80,
0.0312),
TOP2A
0.79,
0.0381).
Downregulated
SNAI2
−
0.63,
0.0055),
ITPR1
0.75,
0.0083),
CD10
0.70,
0.0092),
PTEN
0.29,
0.0163),
VRD
0.46,
0.0184),
WNT5A
0.76,
0.0272).
positively
correlated
proliferation
scores,
emerged
as
potential
biomarkers
independently
These
findings
suggest
novel
biomarker
candidates
that
could
help
overcome
resistance,
reduce
recurrence,
improve
outcomes
ER
BC.
Язык: Английский
Bisphenol S (BPS) induces glioblastoma progression via regulation of EZH2-mediated PI3K/AKT/mTOR pathway in U87-MG cells
Toxicology,
Год журнала:
2024,
Номер
507, С. 153898 - 153898
Опубликована: Июль 18, 2024
Bisphenol
S
(BPS),
an
alternative
to
bisphenol
A
(BPA),
exerts
proliferative
effects
similar
those
of
BPA.
BPS
is
a
representative
endocrine
disruptor
associated
with
cancer
progression.
However,
the
mechanisms
underlying
BPS-induced
glioblastoma
progression
are
not
fully
understood.
To
investigate
on
glioblastoma,
U-87
MG
cell
lines
were
exposed
BPS.
The
study
focused
analyzing
proliferation
and
migration
cells.
Furthermore,
involvement
enhancer
zeste
homolog
2
(EZH2)-mediated
phosphoinositide
3-kinase
(PI3K)/protein
kinase
B
(AKT)/mammalian
target
rapamycin
(mTOR)
pathway
was
examined.
Pharmacological
approaches
employed
inhibit
EZH2
activity
observe
its
changes.
results
indicated
that
promoted
cells
at
concentration
0.1
µM.
These
changes
appeared
be
linked
activation
EZH2-mediated
PI3K/AKT/mTOR
pathway.
Moreover,
inhibiting
using
pharmacological
restored
BPS-mediated
induction
migration.
In
conclusion,
this
induces
through
upregulation.
Therefore,
targeting
could
considered
potential
therapeutic
strategy
for
treatment
glioblastoma.
Язык: Английский
EZH2 mutation is associated with the development of visceral metastasis by enhancing proliferation and invasion and inhibiting apoptosis in breast cancer cells
BMC Cancer,
Год журнала:
2024,
Номер
24(1)
Опубликована: Сен. 19, 2024
Язык: Английский
Unraveling non-coding RNAs in breast cancer: mechanistic insights and therapeutic potential
Medical Oncology,
Год журнала:
2024,
Номер
42(1)
Опубликована: Дек. 27, 2024
Язык: Английский
Identification of Poliovirus Receptor-like 3 Protein as a Prognostic Factor in Triple-Negative Breast Cancer
Cells,
Год журнала:
2024,
Номер
13(15), С. 1299 - 1299
Опубликована: Авг. 3, 2024
Triple-negative
breast
cancer
(TNBC)
represents
an
aggressive
subtype
of
cancer,
with
a
bad
prognosis
and
lack
targeted
therapeutic
options.
Characterized
by
the
absence
estrogen
receptors,
progesterone
HER2
expression,
TNBC
is
often
associated
significantly
lower
survival
rate
compared
to
other
subtypes.
Our
study
aimed
explore
prognostic
significance
83
immune-related
genes,
using
transcriptomic
data
from
TCGA
database.
analysis
identified
Poliovirus
Receptor-Like
3
protein
(PVRL3)
as
critical
negative
marker
in
patients.
Furthermore,
we
found
that
Enhancer
Zeste
Homolog
2
(EZH2),
well-known
epigenetic
regulator,
plays
pivotal
role
modulating
PVRL3
levels
cell
lines
expressing
EZH2
along
high
PVRL3.
The
elucidation
EZH2-PVRL3
regulatory
axis
provides
valuable
insights
into
molecular
mechanisms
underlying
aggressiveness
opens
up
potential
pathways
for
personalized
intervention.
Язык: Английский
Therapeutic targeting potential of the protein lysine and arginine methyltransferases to reverse cancer chemoresistance
Frontiers in Molecular Biosciences,
Год журнала:
2024,
Номер
11
Опубликована: Дек. 5, 2024
Cancer
treatments
have
continued
to
improve
tremendously
over
the
past
decade,
but
therapy
resistance
is
still
a
common,
major
factor
encountered
by
patients
diagnosed
with
cancer.
Chemoresistance
arises
due
various
circumstances
and
among
these
causes,
increasing
evidence
has
shown
that
enzymes
referred
as
protein
methyltransferases
(PMTs)
play
significant
role
in
development
of
chemoresistance
cancers.
These
are
responsible
for
methylation
different
amino
acids,
particularly
lysine
arginine,
via
(PKMTs)
arginine
(PRMTs),
respectively.
Various
PMTs
been
identified
be
dysregulated
cancer
chemoresistance.
Nonetheless,
functional
poorly
characterised.
This
advocates
need
innovative
approaches
technologies
suitable
better
characterisation
their
potential
clinical
inhibitors.
In
case
handful
PMTs,
inhibitory
small
molecules
which
can
function
anticancer
drugs
developed
also
entered
trials.
Considering
all
this,
become
promising
valuable
target
related
research.
review
will
give
introduction
on
PKMTs
PRMTs
families
cancers
known
proteins
targeted
respective
enzymes.
The
focus
then
shift
towards
involved
inhibitors
against
these,
together
mode
action.
Lastly,
current
obstacles
future
perspectives
PMT
discussed.
Язык: Английский
Pharmacological Advancements of PRC2 in Cancer Therapy: A Narrative Review
Life,
Год журнала:
2024,
Номер
14(12), С. 1645 - 1645
Опубликована: Дек. 11, 2024
Polycomb
repressive
complex
2
(PRC2)
is
known
to
regulate
gene
expression
and
chromatin
structure
as
it
methylates
H3K27,
resulting
in
silencing.
Studies
have
shown
that
PRC2
has
dual
functions
oncogenesis
allow
function
both
an
oncogene
a
tumor
suppressor.
Because
of
this,
nuanced
strategies
are
necessary
promote
or
inhibit
activity
therapeutically.
Given
the
therapeutic
vulnerabilities
associated
risks
oncological
applications,
structured
literature
review
on
was
conducted
showcase
similar
cofactor
competitor
inhibitors
PRC2.
Key
such
Tazemetostat,
GSK126,
Valemetostat,
UNC1999
promise
for
clinical
use
within
various
studies.
Tazemetostat
GSK126
highly
selective
wild-type
lymphoma-associated
EZH2
mutants.
Valemetostat
orally
bioavailable
SAM-competitive
EZH1
EZH2,
giving
them
greater
efficacy
against
potential
drug
resistance.
The
development
other
inhibitors,
particularly
targeting
EED
SUZ12
subunit,
also
being
explored
with
drugs
like
226.
This
aims
bridge
gaps
current
provide
unified
perspective
promising
agents
treatment
lymphomas
solid
tumors.
Язык: Английский