Cancers,
Journal Year:
2021,
Volume and Issue:
13(4), P. 692 - 692
Published: Feb. 9, 2021
Neuroendocrine
plasticity
and
treatment-induced
neuroendocrine
phenotypes
have
recently
been
proposed
as
important
resistance
mechanisms
underlying
prostate
cancer
progression.
Treatment-induced
(t-NEPC)
is
highly
aggressive
subtype
of
castration-resistant
which
develops
for
one
fifth
patients
under
prolonged
androgen
deprivation.
In
recent
years,
understanding
molecular
features
phenotypic
changes
in
has
grown.
However,
there
are
still
fundamental
questions
to
be
answered
this
emerging
research
field,
example,
why
how
do
the
treatment-resistant
cells
acquire
neuron-like
phenotype.
The
advantages
change
role
tumor
microenvironment
controlling
cellular
emergence
forms
mostly
unknown.
Here,
we
discuss
functional
links
between
neurodevelopmental
processes
progression
treatment
resistance.
We
provide
an
overview
neurite-like
whether
reported
t-NEPC
pathways
proteins
relate
like
neurogenesis
axonogenesis
during
development
also
novel
therapeutic
targets
modulating
plasticity.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Feb. 2, 2023
Prostate
cancer
is
a
highly
heterogeneous
disease.
Progression
on
androgen
deprivation
therapy
(ADT)
to
castration-resistant
(CRPC),
or
neuroendocrine
prostate
(NEPC),
associated
with
poor
patient
survival.
This
comment
highlights
recent
evidence
the
epigenetic
mechanisms
underlying
emergence
of
lineage
plasticity
and
differentiation
in
treatment-resistant
tumors.
Theranostics,
Journal Year:
2024,
Volume and Issue:
14(3), P. 1065 - 1080
Published: Jan. 1, 2024
Neuroendocrine
prostate
cancer
(NEPC)
typically
implies
severe
lethality
and
limited
treatment
options.The
precise
identification
of
NEPC
cells
holds
paramount
significance
for
both
research
clinical
applications,
yet
valid
biomarker
remains
to
be
defined.Methods:
Leveraging
11
published
NE-related
gene
sets,
single-cell
RNA-sequencing
(scRNA-seq)
cohorts,
15
bulk
transcriptomic
13
experimental
models
(PCa),
we
employed
multiple
advanced
algorithms
construct
validate
a
robust
risk
prediction
model.Results:
Through
the
compilation
comprehensive
scRNA-seq
reference
atlas
(comprising
total
210,879
single
cells,
including
66
tumor
samples)
from
9
multicenter
datasets
PCa,
observed
inconsistent
inefficient
performance
among
NE
sets.Therefore,
developed
an
integrative
analysis
pipeline,
identifying
762
high-quality
markers.Subsequently,
derived
cell-intrinsic
signature,
R
package
named
NEPAL,
predict
scores.By
applying
independent
validation
datasets,
NEPAL
consistently
accurately
assigned
feature
delineated
PCa
progression.Intriguingly,
demonstrated
predictive
capabilities
prognosis
therapy
responsiveness,
as
well
potential
epigenetic
drivers
NEPC.
Conclusion:The
present
study
furnishes
valuable
tool
monitoring
progression
through
profiles
obtained
sources.
Nature Cancer,
Journal Year:
2024,
Volume and Issue:
5(11), P. 1641 - 1659
Published: Oct. 11, 2024
Abstract
Lineage
plasticity
is
a
hallmark
of
cancer
progression
that
impacts
therapy
outcomes,
yet
the
mechanisms
mediating
this
process
remain
unclear.
Here,
we
introduce
versatile
in
vivo
platform
to
interrogate
neuroendocrine
lineage
transformation
throughout
prostate
progression.
Transplanted
mouse
organoids
with
human-relevant
driver
mutations
(
Rb1
−
/
;
Trp53
cMyc
+
or
Pten
)
develop
adenocarcinomas,
but
only
those
deletion
advance
aggressive,
ASCL1
(NEPC)
resistant
androgen
receptor
signaling
inhibitors.
Notably,
transition
requires
an
microenvironment
not
replicated
by
conventional
organoid
culture.
Using
multiplexed
immunofluorescence
and
spatial
transcriptomics,
reveal
cells
arise
from
KRT8
luminal
cells,
progressing
into
transcriptionally
heterogeneous
;KRT8
NEPC.
Ascl1
loss
established
NEPC
causes
transient
regression
followed
recurrence,
its
before
transplantation
abrogates
plasticity,
resulting
castration-sensitive
adenocarcinomas.
This
dynamic
model
highlights
importance
timing
offers
identify
additional
drivers.
Journal of Clinical Medicine,
Journal Year:
2024,
Volume and Issue:
13(3), P. 734 - 734
Published: Jan. 27, 2024
Prostate
cancer
liver
metastasis
(PCLM),
seen
in
upwards
of
25%
metastatic
castration-resistant
PC
(mCRPC)
patients,
is
the
most
lethal
site
mCRPC
with
a
median
overall
survival
10–14
months.
Despite
its
ominous
prognosis
and
anticipated
rise
incidence
due
to
longer
contemporary
therapy,
PCLM
understudied.
This
review
aims
summarize
existing
literature
regarding
risk
factors
associated
development
PCLM,
identify
areas
warranting
further
research.
A
search
was
conducted
through
Ovid
MEDLINE
from
2000
March
2023.
Relevant
subject
headings
text
words
were
used
capture
following
concepts:
“Prostatic
Neoplasms”,
“Liver
“Neoplasm
Metastasis”.
Citation
searching
identified
additional
manuscripts.
Forty-one
studies
retained
for
detailed
analysis.
The
clinical
visceral/liver
included
<70
years,
≥T3
tumor,
N1
nodal
stage,
de
novo
metastasis,
PSA
>20
ng/mL,
Gleason
score
>8.
Additional
comprised
elevated
serum
AST,
LDH
or
ALP,
decreased
Hb,
genetic
markers
like
RB1
PTEN
loss,
PIK3CB
MYC
amplification,
as
well
numerous
treatments
either
acting
directly
indirectly
inducing
injury.
Further
research
predictive
factors,
early
detection
strategies,
targeted
therapies
are
critical
improving
patient
outcomes.
iScience,
Journal Year:
2022,
Volume and Issue:
25(7), P. 104576 - 104576
Published: June 13, 2022
Neuroendocrine
prostate
cancer
(NEPC)
is
a
lethal
subtype
of
cancer,
with
10%
five-year
survival
rate.
However,
little
known
about
its
origin
and
the
mechanisms
governing
emergence.
Our
study
characterized
ADPC
NEPC
in
tumors
from
7
patients
using
scRNA-seq.
First,
we
identified
two
gene
expression
signatures
representing
different
phases
trans-differentiation.
New
marker
genes
may
be
used
for
clinical
diagnosis.
Second,
integrative
analyses
combining
subclonal
architecture
revealed
paths
by
which
diverges
original
ADPC,
either
directly
treatment-naïve
tumor
cells
or
specific
intermediate
states
treatment-resistance.
Third,
inferred
hierarchical
transcription
factor
(TF)
network
underlying
progression,
involves
constitutive
regulation
ASCL1,
FOXA2,
selective
NKX2-2,
POU3F2,
SOX2.
Together,
these
results
defined
complex
profiles
advanced
our
understanding
genetic
transcriptomic
leading
to
differentiation.
Frontiers in Endocrinology,
Journal Year:
2023,
Volume and Issue:
14
Published: June 30, 2023
Androgen
deprivation
therapy
is
a
cornerstone
of
treatment
for
advanced
prostate
cancer,
and
the
development
castrate-resistant
cancer
(CRPC)
primary
cause
cancer-related
mortality.
While
CRPC
typically
develops
through
gain
in
androgen
receptor
(AR)
signaling,
subset
will
lose
reliance
on
AR.
This
process
involves
genetic,
epigenetic,
hormonal
changes
that
promote
cellular
plasticity,
leading
to
AR-indifferent
disease,
with
neuroendocrine
(NEPC)
being
quintessential
example.
NEPC
enriched
following
second-generation
anti-androgens
exhibits
resistance
endocrine
therapy.
Loss
RB1
,
TP53
PTEN
expression
MYCN
AURKA
amplification
appear
be
key
drivers
differentiation.
Epigenetic
modifications
also
play
an
important
role
transition
phenotype.
DNA
methylation
specific
gene
promoters
can
regulate
lineage
commitment
Histone
suppress
AR
neuroendocrine-specific
expression.
Emerging
data
suggest
EZH2
regulator
this
epigenetic
rewiring.
Several
mechanisms
drive
AR-dependent
castration
resistance,
notably
splice
variant
expression,
adrenal-permissive
3βHSD1
allele,
glucocorticoid
Aberrant
regulation
promotes
radioresistance
by
altering
repair-
cell
cycle-related
genes.
Novel
therapies
are
currently
developed
target
these
diverse
promoting
plasticity-driven
NEPC.
Science Translational Medicine,
Journal Year:
2023,
Volume and Issue:
15(722)
Published: Nov. 15, 2023
Aberrant
DNA
methylation
has
been
implicated
as
a
key
driver
of
prostate
cancer
lineage
plasticity
and
histologic
transformation
to
neuroendocrine
(NEPC).
methyltransferases
(DNMTs)
are
highly
expressed,
global
is
dysregulated
in
NEPC.
We
identified
that
deletion
DNMT
genes
decreases
expression
markers
substantially
reduced
NEPC
tumor
development
metastasis
vivo.
Decitabine,
pan-DNMT
inhibitor,
attenuated
growth
patient–derived
xenograft
models,
well
retinoblastoma
gene
(
RB1
)–deficient
castration-resistant
adenocarcinoma
(CRPC)
models
compared
with
-proficient
CRPC.
further
found
inhibition
increased
B7
homolog
3
(B7-H3),
an
emerging
druggable
target,
via
demethylation
B7-H3.
tested
DS-7300a
(i-DXd),
antibody-drug
conjugate
targeting
B7-H3,
alone
combination
decitabine
advanced
cancer.
There
was
potent
single-agent
antitumor
activity
both
CRPC
bearing
high
In
B7-H3–low
therapy
plus
resulted
enhanced
response.
may
therefore
be
promising
therapeutic
target
for
RB1-deficient
sensitize
through
increasing
expression.
represent
subgroups
poor
prognosis,
the
biomarker-driven
strategies
these
populations
ultimately
help
improve
patient
outcomes.
Nucleic Acids Research,
Journal Year:
2024,
Volume and Issue:
52(13), P. 7740 - 7760
Published: June 27, 2024
Abstract
Androgen
receptor-
(AR-)
indifference
is
a
mechanism
of
resistance
to
hormonal
therapy
in
prostate
cancer
(PC).
Here
we
demonstrate
that
ONECUT2
(OC2)
activates
through
multiple
drivers
associated
with
adenocarcinoma,
stem-like
and
neuroendocrine
(NE)
variants.
Direct
OC2
gene
targets
include
the
glucocorticoid
receptor
(GR;
NR3C1)
NE
splicing
factor
SRRM4,
which
are
key
lineage
plasticity.
Thus,
OC2,
despite
its
previously
described
NEPC
driver
function,
can
indirectly
activate
portion
AR
cistrome
epigenetic
activation
GR.
Mechanisms
by
regulates
expression
promoter
binding,
enhancement
genome-wide
chromatin
accessibility,
super-enhancer
reprogramming.
Pharmacologic
inhibition
suppresses
plasticity
reprogramming
induced
signaling
inhibitor
enzalutamide.
These
results
promotes
range
drug
mechanisms
treatment-emergent
variation
PC
support
enhanced
efforts
therapeutically
target
as
means
suppressing
treatment-resistant
disease.