Poly
ADP
ribose
polymerase-1
(PARP-1)
plays
a
crucial
role
in
processes
such
as
DNA
damage
repair,
gene
transcription,
and
cell
apoptosis
cancer
cells.
Therefore,
PARP-1
represents
promising
target
to
develop
anticancer
drugs.
By
summarizing
the
structure-activity
relationship
of
inhibitors,
series
benzofuran
[3,2-D]pyrimidine-4(1H)-ketone
derivatives
containing
thiosemicarbazide
or
its
analogs
were
designed,
synthesized
biologically
evaluated
on
their
inhibition
PARP
enzyme
activity.
Among
all
compounds,
19c
exhibited
superior
biological
activity
with
IC50
values
22
nM
4.98
μM
for
exogenous
SK-OV-3
cells,
respectively,
better
than
Olaparib.
In
addition,
showed
low
toxicity
normal
liver
Anti-cancer
mechanism
studies
revealed
that
could
inhibit
repair
single-strand
breakage
aggravate
double-strand
by
inhibiting
activity,
promote
cells
through
mitochondrial
pathway.
all,
these
complexes
may
have
potential
novel
inhibitors.
Cancers,
Journal Year:
2023,
Volume and Issue:
15(19), P. 4904 - 4904
Published: Oct. 9, 2023
Background:
Poly
ADP-ribose
polymerase
inhibitors
(PARPis)
are
an
important
class
of
therapeutics
for
metastatic
castration-resistant
prostate
cancer
(mCRPC).
Unlike
hormone-based
treatments
mCRPC,
PARPis
not
without
drug-related
hematological
adverse
events.
Objective:
To
review
the
evidence
on
toxicities,
including
anemia,
thrombocytopenia,
and
neutropenia
from
in
cancer.
Study
Methodology:
A
systematic
meta-analysis
using
PRISMA
guidelines
was
performed
phase
II
III
randomized
controlled
trials
(RCTs)
PubMed,
Embase,
Ovid
All
EBM
reviews—Cochrane
were
queried
inception
to
9
June
2023.
The
Mantel–Haenszel
method
used
report
risk
ratios
(RR)
95%
confidence
intervals
(CI)
all-grade
high-grade
toxicities.
Results:
retrieved
eight
RCTs;
specifically,
included
five
thrombocytopenia
neutropenia,
four
outcomes.
Compared
a
placebo
and/or
other
non-PARPi
treatments,
PARPi
use
associated
with
increased
anemia
(RR,
3.37;
CI,
2.37–4.79;
p
<
0.00001),
4.54;
1.97–10.44;
=
0.0004),
3.11;
1.60–6.03;
0.0008).
High-grade
6.94;
4.06–11.86;
0.00001)
5.52;
2.80–10.88;
also
risk,
while
3.63;
0.77–17.23;
0.10)
showed
no
significant
association.
Subgroup
stratification
analyses
differences
various
Conclusion:
AEs.
Future
studies
more
pooled
RCTs
will
enhance
this
understanding
continue
inform
patient–physician
shared
decision-making.
may
have
role
improving
current
management
strategies
these
Prostate Cancer,
Journal Year:
2024,
Volume and Issue:
unknown, P. 389 - 397
Published: Jan. 1, 2024
Castration-resistant
prostate
cancer
(CRPC)
is
a
major
therapeutic
problem.
Resistance
to
androgen
deprivation
therapy
occurs
in
many
patients
after
initial
success.
The
tumor
develops
genetic
and
epigenetic
mechanisms
by
which
it
successfully
bypasses
the
effects
of
applied
(mutation
gene
for
receptor
enzymes
synthesis,
splice
forms
receptor,
loss
production
antitumor
proteins,
and/or
increased
creation
proteins
that
stimulate
formation
tumors,
etc.).
As
drugs,
CRPC,
we
have
second-generation
antagonists
such
as
darolutamide,
followed
abiraterone,
newer
options
like
pembrolizumab
olaparib.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 25, 2024
Abstract
PACT
(encoded
by
the
PRKRA
gene)
is
a
double-stranded
RNA
binding
protein
that
has
two
main
functions
in
mammals:
facilitation
of
antiviral
defense
mechanisms
via
activation
kinase
(PKR)
and
retinoic
acid-inducible
gene
1
(RIG-1),
also
member
cytoplasmic
RNA-induced
silencing
complex.
We
previously
described
an
alternate
role
for
as
modulator
nuclear
receptor
(NR)-regulated
expression.
Here,
we
investigated
prostate
cancer
(PCa)
using
loss-of-function
approach.
Depletion
PCa
cell
lines
resulted
reduction
proliferation;
however,
they
were
viable.
RNA-sequencing
analysis
LNCaP
cells
±
revealed
depletion
biological
processes
involved
cycle,
mitochondrial
function,
NR-response
pathways
knockout
(KO)
cells.
In
KO
cells,
downregulated
genes
included
H2AFJ,
PSMD5,
AQP3,
TMEM45B,
SLC22A3,
and
KLK3
(prostate
specific
antigen,
PSA),
siRNA
mediated
knockdown
these
reduced
growth
proliferation
Taken
together,
data
provide
support
proproliferative
targeting
PRKRA,
or
are
therapies,
could
benefit
patient
survival.
UroCancer Clinics of India .,
Journal Year:
2024,
Volume and Issue:
2(1), P. 37 - 44
Published: Jan. 1, 2024
Summary
The
management
of
high-risk
and
advanced
prostate
cancer
had
a
major
paradigm
shift
over
the
past
decade.
From
Huggins’
era
sole
androgen
deprivation
therapy
(ADT),
has
evolved
to
novel
receptor
signaling
inhibitors
(ARSI),
chemotherapy,
targeted
molecular,
immunotherapy,
radiotheranostics.
is
broadly
studied
under
metastatic
hormone
or
castration-sensitive
(mCSPC)
castration-resistant
(mCRPC).
mCSPC
from
mere
ADT
use
abiraterone,
enzalutamide,
docetaxel-based
chemotherapy
burning
conflict
treatment
intensification
with
triplet
therapy.
Various
agents,
such
as
poly
(ADP-ribose)
polymerase
(PARPIs)
radiotheranostics,
are
being
explored
in
mCSPC.
mCRPC
mitoxantrone
therapy,
ARSI
PARPI,
177
lutetium-prostate-specific
membrane
antigen-617,
novel-targeted
ONCOLOGIE,
Journal Year:
2023,
Volume and Issue:
25(6), P. 717 - 728
Published: Aug. 7, 2023
Abstract
Objective
The
inhibitors
of
CDK12
and
WEE1
(SR-4835
AZD-1775)
have
rarely
been
evaluated
in
studies
on
castration-resistant
prostate
cancer
(CRPC)
treatment.
research
objective
this
article
is
to
study
the
inhibitory
effect
SR-4835
AZD-1775
CRPC
cells
explore
therapeutic
combining
two
drugs
treatment
vitro
vivo
.
Methods
We
performed
Western
blot,
quantitative
real-time
PCR,
Cell
Counting
Kit-8,
colony
formation,
EdU,
immunofluorescence
assays;
cell
cycle
analysis,
wound
scratch
Transwell
assays
nude
mice
xenograft
tumor
analysis
identify
mechanism
measure
SR-4835,
combination
cells.
Results
Compared
with
normal
cells,
expressions
especially
were
significantly
increased
at
protein
mRNA
levels.
can
cause
DNA
damage
by
inhibiting
expression
repair
genes.
inhibits
G2/M
phase
checkpoint
function.
Performing
experiments,
we
found
that
combined
enhanced
a
greater
degree
than
monotherapy.
Conclusions
In
summary,
eliminate
inducing
machinery.
Therefore,
consider
therapy
be
promising
strategy
for
patients.
Poly
ADP
ribose
polymerase-1
(PARP-1)
plays
a
crucial
role
in
processes
such
as
DNA
damage
repair,
gene
transcription,
and
cell
apoptosis
cancer
cells.
Therefore,
PARP-1
represents
promising
target
to
develop
anticancer
drugs.
By
summarizing
the
structure-activity
relationship
of
inhibitors,
series
benzofuran
[3,2-D]pyrimidine-4(1H)-ketone
derivatives
containing
thiosemicarbazide
or
its
analogs
were
designed,
synthesized
biologically
evaluated
on
their
inhibition
PARP
enzyme
activity.
Among
all
compounds,
19c
exhibited
superior
biological
activity
with
IC50
values
22
nM
4.98
μM
for
exogenous
SK-OV-3
cells,
respectively,
better
than
Olaparib.
In
addition,
showed
low
toxicity
normal
liver
Anti-cancer
mechanism
studies
revealed
that
could
inhibit
repair
single-strand
breakage
aggravate
double-strand
by
inhibiting
activity,
promote
cells
through
mitochondrial
pathway.
all,
these
complexes
may
have
potential
novel
inhibitors.