Cell & Bioscience,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Feb. 23, 2022
N6-methyladenosine
(m6A)
is
the
most
common
post-transcriptional
modification
at
RNA
level.
However,
exact
molecular
mechanisms
of
m6A
epigenetic
regulation
in
breast
cancer
remain
largely
unknown
and
need
to
be
fully
elucidated.
The
integrating
bioinformatics
analyses
were
used
screen
clinical
relevance
dysregulated
"reader"
protein
YTHDF1
from
TCGA
databases,
which
was
further
validated
a
cohort
specimens.
Furthermore,
functional
experiments
such
as
CCK-8
assay,
EdU
wound
healing
transwell
invasion
assay
cell
cycle
determine
biological
role
cancer.
RIP,
m6A-IP,
CLIP
assays
find
target
verification
by
RT-qPCR,
western
blot,
polysome
profiling
assay.
protein-protein
interaction
between
FOXM1
detected
via
co-immunoprecipitation.Our
study
showed
that
overexpressed
cells
tissues
At
same
time,
high
expression
level
positively
correlated
with
tumor
size,
lymph
node
invasion,
distant
metastasis
patients.
depletion
repressed
proliferation,
epithelial-mesenchymal
transformation
(EMT)
induced
G0/G1
phase
arrest
vitro
vivo.
We
also
demonstrated
YTHDF1.
Through
recognizing
binding
m6A-modified
mRNA
FOXM1,
accelerated
translation
process
promoted
metastasis.
Whereas
overexpression
partially
counteracted
suppressed
effects
caused
silence,
verified
regulatory
relationship
FOXM1.Our
reveals
novel
YTHDF1/FOXM1
pathway
contributes
progression
cancer,
suggesting
might
applied
potential
biomarker
therapeutic
target.
That
advances
our
understanding
tumorigenesis
for
regulation.
Journal of Hematology & Oncology,
Journal Year:
2022,
Volume and Issue:
15(1)
Published: Sept. 8, 2022
Abstract
Epithelial–mesenchymal
transition
(EMT)
is
an
essential
process
in
normal
embryonic
development
and
tissue
regeneration.
However,
aberrant
reactivation
of
EMT
associated
with
malignant
properties
tumor
cells
during
cancer
progression
metastasis,
including
promoted
migration
invasiveness,
increased
stemness,
enhanced
resistance
to
chemotherapy
immunotherapy.
tightly
regulated
by
a
complex
network
which
orchestrated
several
intrinsic
extrinsic
factors,
multiple
transcription
post-translational
control,
epigenetic
modifications,
noncoding
RNA-mediated
regulation.
In
this
review,
we
described
the
molecular
mechanisms,
signaling
pathways,
stages
tumorigenesis
involved
discussed
dynamic
non-binary
its
role
metastasis.
Finally,
summarized
challenges
immunotherapy
proposed
strategies
for
therapy
targeting
EMT.
Molecular Cancer,
Journal Year:
2020,
Volume and Issue:
19(1)
Published: May 27, 2020
Gastric
cancer
is
a
deadly
disease
and
remains
the
third
leading
cause
of
cancer-related
death
worldwide.
The
5-year
overall
survival
rate
patients
with
early-stage
localized
gastric
more
than
60%,
whereas
that
distant
metastasis
less
5%.
Surgical
resection
best
option
for
cancer,
while
chemotherapy
mainly
used
in
middle
advanced
stages
this
disease,
despite
frequently
reported
treatment
failure
due
to
resistance.
Therefore,
there
an
unmet
medical
need
identifying
new
biomarkers
early
diagnosis
proper
management
patients,
achieve
response
treatment.
Long
non-coding
RNAs
(lncRNAs)
body
fluids
have
attracted
widespread
attention
as
screening,
diagnosis,
treatment,
prognosis,
responses
drugs
high
specificity
sensitivity.
In
present
review,
we
focus
on
clinical
potential
lncRNAs
liquid
biopsies
prognosis
cancer.
We
also
comprehensively
discuss
roles
their
molecular
mechanisms
chemoresistance
well
therapeutic
targets
precision
medicine.
Frontiers in Oncology,
Journal Year:
2020,
Volume and Issue:
10
Published: April 8, 2020
Metastasis
is
the
main
cause
of
cancer-related
mortality.
Although
actual
process
metastasis
remains
largely
elusive,
epithelial-mesenchymal
transition
(EMT)
has
been
considered
as
a
major
event
in
metastasis.
Besides,
hypoxia
common
solid
cancers
and
an
important
factor
for
adverse
treatment
outcomes
including
Since
EMT
potentially
share
several
signaling
pathways,
many
recent
studies
focused
on
investigate
issue
hypoxia-induced
EMT.
Among
all
potential
mediators
EMT,
hypoxia-inducible
factor-1α
(HIF-1α)
studied
extensively.
Moreover,
there
are
other
that
may
also
contribute
to
process.
This
review
aims
summarize
reports
by
HIF-1α
or
provide
insights
further
investigations
this
issue.
Ultimately,
better
understanding
allow
us
develop
anti-metastatic
strategies
improve
outcomes.
Genome Medicine,
Journal Year:
2020,
Volume and Issue:
12(1)
Published: Sept. 28, 2020
Solid
tumors
such
as
pancreatic
ductal
adenocarcinoma
(PDAC)
comprise
not
just
tumor
cells
but
also
a
microenvironment
with
which
the
constantly
interact.
Detailed
characterization
of
cellular
composition
is
critical
to
understanding
disease
and
treatment
patient.
Single-cell
transcriptomics
has
been
used
study
different
solid
types
including
PDAC.
However,
almost
all
those
studies
primary
tissues.In
this
study,
we
employed
single-cell
RNA
sequencing
technology
profile
transcriptomes
individual
from
dissociated
or
metastatic
biopsies
obtained
patients
Unsupervised
clustering
analysis
well
new
supervised
classification
algorithm,
SuperCT,
was
identify
cell
within
tissues.
The
expression
signatures
were
then
compared
between
biopsies.
expressions
type-specific
signature
genes
correlated
patient
survival
using
public
datasets.Our
revealed
distinct
in
PDAC
tissues
cells,
endothelial
cancer-associated
fibroblasts
(CAFs),
immune
cells.
cancer
showed
high
inter-patient
heterogeneity,
whereas
stromal
more
homogenous
across
patients.
Immune
infiltration
varies
significantly
majority
being
macrophages
exhausted
lymphocytes.
We
found
that
an
important
factor
defining
subtypes.
Furthermore,
levels
markers
for
EMT+
activated
CAFs,
associated
survival.Taken
together,
our
work
identifies
significant
heterogeneity
compositions
lesions.
subtypes
outcome.
These
findings
provide
valuable
insights
on
could
potentially
inform
management
Cancer Cell,
Journal Year:
2020,
Volume and Issue:
37(2), P. 168 - 182.e4
Published: Jan. 23, 2020
The
TIGAR
protein
has
antioxidant
activity
that
supports
intestinal
tissue
repair
and
adenoma
development.
Using
a
pancreatic
ductal
adenocarcinoma
(PDAC)
model,
we
show
reactive
oxygen
species
(ROS)
regulation
by
premalignant
tumor
initiation
while
restricting
metastasis.
Increased
ROS
in
PDAC
cells
drives
phenotypic
switch
increases
migration,
invasion,
metastatic
capacity.
This
is
dependent
on
increased
activation
of
MAPK
signaling
can
be
reverted
treatment.
In
mouse
human,
expression
modulated
during
development,
with
higher
levels
lesions
lower
metastasizing
tumors.
Our
study
indicates
temporal,
dynamic
control
underpins
full
malignant
progression
helps
to
rationalize
conflicting
reports
pro-
anti-tumor
effects
Signal Transduction and Targeted Therapy,
Journal Year:
2020,
Volume and Issue:
5(1)
Published: Oct. 7, 2020
Abstract
Resistance
to
cancer
therapy
is
a
major
barrier
management.
Conventional
views
have
proposed
that
acquisition
of
resistance
may
result
from
genetic
mutations.
However,
accumulating
evidence
implicates
key
role
non-mutational
mechanisms
underlying
drug
tolerance,
the
latter
which
focus
will
be
discussed
here.
Such
processes
are
largely
driven
by
tumor
cell
plasticity,
renders
cells
insusceptible
drug-targeted
pathway,
thereby
facilitating
survival
and
growth.
The
concept
plasticity
highlights
significance
re-activation
developmental
programs
closely
correlated
with
epithelial–mesenchymal
transition,
properties
stem
cells,
trans-differentiation
potential
during
exposure.
From
observations
in
various
cancers,
this
provides
an
opportunity
for
investigating
nature
anticancer
resistance.
Over
years,
our
understanding
emerging
phenotype
switching
modifying
therapeutic
response
has
considerably
increased.
This
expanded
knowledge
contributes
developing
novel
strategies
or
combination
regimens
using
available
drugs,
likely
improve
patient
outcomes
clinical
practice.
Journal of Biomedical Science,
Journal Year:
2020,
Volume and Issue:
27(1)
Published: March 2, 2020
Abstract
Epithelial-mesenchymal
transition
(EMT)
is
an
important
process
triggered
during
cancer
metastasis.
Regulation
of
EMT
mostly
initiated
by
outside
signalling,
including
TGF-β,
growth
factors,
Notch
ligand,
Wnt,
and
hypoxia.
Many
signalling
pathways
have
been
delineated
to
explain
the
molecular
mechanisms
EMT.
In
this
review,
we
will
focus
on
epigenetic
regulation
two
critical
pathways:
hypoxia
TGF-β.
For
hypoxia,
hypoxia-induced
mediated
interplay
between
chromatin
modifiers
histone
deacetylase
3
(HDAC3)
WDR5
coupled
with
presence
lysine
4
acetylation
(H3K4Ac)
mark
that
labels
promoter
regions
various
traditional
marker
genes
(e.g.
CDH1
,
VIM
).
Recently
identified
new
markers
belong
transcription
factors
SMO,
GLI1)
mediate
themselves.
TGF-β-induced
ΕΜΤ,
global
changes,
removal
a
variant
(H2A.Z),
UTX,
Rad21,
PRMT5,
RbBP5,
etc)
are
be
crucial
for
both
(EMT-TFs)
(EMT-Ms).
The
utilized
in
these
may
serve
as
good
model
systems
other
also
provide
potential
therapeutic
targets.