Wiley Interdisciplinary Reviews - RNA,
Год журнала:
2023,
Номер
15(1)
Опубликована: Ноя. 13, 2023
Abstract
PARP1
(poly‐ADP‐ribose
polymerase
1)
is
a
multidomain
protein
with
flexible
and
self‐folding
structure
that
allows
it
to
interact
wide
range
of
biomolecules,
including
nucleic
acids
target
proteins.
interacts
its
molecules
either
covalently
via
PARylation
or
non‐covalently
through
PAR
moieties
induced
by
auto‐PARylation.
These
diverse
interactions
allow
participate
in
complex
regulatory
circuits
cellular
functions.
Although
the
most
studied
PARP1‐mediated
functions
are
associated
DNA
repair
stress
response,
subsequent
discoveries
have
revealed
additional
biological
Based
on
these
findings,
now
recognized
as
major
modulator
gene
expression.
Several
show
this
multifunctional
has
been
intimately
connected
several
steps
mRNA
biogenesis,
from
transcription
initiation
splicing,
polyadenylation,
export,
translation
Nevertheless,
our
understanding
PARP1's
involvement
biogenesis
both
coding
noncoding
RNA,
notably
circular
RNA
(circRNA),
remains
restricted.
In
review,
we
outline
possible
roles
circRNA
biogenesis.
A
full
examination
nuclear
processes
an
emphasis
may
reveal
new
avenues
control
dysregulation
implicated
pathogenesis
diseases
such
neurodegenerative
disorders
cancers.
This
article
categorized
under:
Interactions
Proteins
Other
Molecules
>
Protein‐RNA
Interactions:
Functional
Implications
Regulatory
RNAs/RNAi/Riboswitches
RNAs
Processing
Splicing
Regulation/Alternative
Journal of Fungi,
Год журнала:
2025,
Номер
11(1), С. 29 - 29
Опубликована: Янв. 3, 2025
ADP-ribosylation
is
a
reversible
modification
of
proteins
and
nucleic
acids,
which
controls
major
cellular
processes,
including
DNA
damage
repair,
cell
proliferation
differentiation,
metabolism,
stress,
immunity
in
plants
animals.
The
involvement
the
life
cycle
Dictyostelium
some
filamentous
fungi
has
also
been
demonstrated.
However,
role
this
process
pathogenic
oomycetes
never
addressed.
Here,
we
show
that
Phytophthora
infestans
genome
contains
two
PARP-like
protein
genes
(PiPARP1
PiPARP2),
provide
evidence
PARylation
activity
for
one
them
(PiPARP2).
Using
dsRNA-mediated
RNA
silencing
PiPARP2
gene
chemical
(pharmacological)
inhibition
PARP
by
3-aminobenzamide
(3AB)
inhibitor,
demonstrate
critical
functional
mycelium
growth.
Virulence
test
on
detached
leaves
suggests
an
important
host
plant
colonisation
pathogenesis.
On
practical
level,
our
data
suggest
targeting
system
may
constitute
novel
powerful
approach
management
diseases.
Current Issues in Molecular Biology,
Год журнала:
2025,
Номер
47(1), С. 40 - 40
Опубликована: Янв. 9, 2025
Glioblastoma
multiforme
(GBM)
is
one
of
the
most
aggressive
and
treatment-resistant
forms
brain
cancer.
Current
therapeutic
strategies,
including
surgery,
chemotherapy,
radiotherapy,
often
fail
due
to
tumor’s
ability
develop
resistance.
The
proteins
YAP-1
(Yes-associated
protein
1)
PARP-1
(Poly-(ADP-ribose)–polymerase-1)
have
been
implicated
in
this
resistance,
playing
crucial
roles
cell
proliferation
DNA
repair
mechanisms,
respectively.
This
study
explored
inhibitory
potential
natural
compounds
from
Lepidium
meyenii
(Peruvian
Maca)
on
systems
novel
strategies
for
GBM.
By
molecular
dynamics
simulations,
we
identified
N-(3-Methoxybenzyl)-(9Z,12Z,15Z)-
octadecatrienamide
(DK5)
as
promising
inhibitor
stearic
acid
(GK4)
YAP-1.
Although
synthetic
inhibitors,
such
Olaparib
(ODK)
Verteporfin
(VER)
YAP-1,
only
VER
was
superior
naturally
occurring
molecule
proved
a
alternative.
In
conclusion,
offer
potentially
innovative
approach
improve
GBM
treatment,
complementing
existing
therapies
with
their
action
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Авг. 5, 2024
DNA-protein
crosslinks
(DPCs)
are
toxic
lesions
that
inhibit
DNA
related
processes.
Post-translational
modifications
(PTMs),
including
SUMOylation
and
ubiquitylation,
play
a
central
role
in
DPC
resolution,
but
whether
other
PTMs
also
involved
remains
elusive.
Here,
we
identify
repair
pathway
orchestrated
by
poly-ADP-ribosylation
(PARylation).
Using
Xenopus
egg
extracts,
show
DPCs
on
single-stranded
gaps
can
be
targeted
for
degradation
via
replication-independent
mechanism.
During
this
process,
initially
PARylated
PARP1
subsequently
ubiquitylated
degraded
the
proteasome.
Notably,
PARP1-mediated
resolution
is
required
resolving
topoisomerase
1-DNA
cleavage
complexes
(TOP1ccs)
induced
camptothecin.
Flp-nick
system,
further
reveal
absence
of
activity,
TOP1cc-like
lesion
persists
induces
replisome
disassembly
when
encountered
replication
fork.
In
summary,
our
work
uncovers
may
underlie
synergistic
toxicity
between
TOP1
poisons
PARP
inhibitors.
The
authors
crosslink
(DPC)
poly-ADP-ribosylation.
PARylates
DPC,
marking
it
removal
proteolysis.
Consequently,
facilitates
located
next
to
breaks,
such
as
1-DPCs.
Deleted Journal,
Год журнала:
2024,
Номер
19(2), С. 44 - 59
Опубликована: Авг. 9, 2024
The
poly
(ADP-ribose)
polymerase
(PARP)
family
of
enzymes
involves
and
regulates
various
cellular
processes
essential
functions,
such
as
apoptosis,
transcription
process,
DNA
repair.
PARPs
(PARP-1,
PARP-2,
PARP-3)
are
a
branch
familiar
proteins
that
play
crucial
role
in
repairing
damage
human
gene
involved
different
cancers
regulate
the
base
excision
repair
(BER)
pathway.
As
target-based
drug
therapy
for
cancer,
inhibition
PARP
stops
PARP-1
-2
from
damaged
mutated
cancer
cells,
eventually,
cells
die.
Considering
limited
available
therapies
treatment
advanced
recurrent
cancers,
inhibitors
(PARPi)
first
approved
drugs
particularly
target
response
to
BRCA
(BReast
CAncer
gene)-1/2
ovarian,
pancreatic,
prostate,
breast
cancers.
Recently,
six
PARPi
viz.,
olaparib,
rucaparib,
niraparib,
talazoparib,
fuzuloparib,
pamiparib
were
monotherapy
or
combination
with
other
classes
anticancer
agents
maintenance
Moreover,
appears
improve
progression-free
survival
women
platinum-sensitive
ovarian
an
adjuvant
conventional
treatment.
Importantly,
use
management
germline
BRCA1/2-associated
is
novel
therapeutic
strategy,
representing
successful
targeted
improving
outcomes
patients
hereditary
Although
resistance
these
has
been
reported
recently,
however,
strategies
have
employed
overcome
sensitivity
breast,
gastric,
prostate
Abstract
Poly(ADP-ribosylation)
(PARylation)
by
poly(ADP-ribose)
polymerases
(PARPs)
is
a
highly
regulated
process
that
consists
of
the
covalent
addition
polymers
ADP-ribose
(PAR)
through
post-translational
modifications
substrate
proteins
or
non-covalent
interactions
with
PAR
via
binding
domains
and
motifs,
thereby
reprogramming
their
functions.
This
modification
particularly
known
for
its
central
role
in
maintenance
genomic
stability.
However,
how
integrity
controlled
an
intricate
interplay
PARylation
remains
largely
unknown.
Of
importance,
has
caught
recent
attention
providing
mechanistic
basis
synthetic
lethality
involving
PARP
inhibitors
(PARPi),
most
notably
homologous
recombination
(HR)-deficient
breast
ovarian
tumors.
The
molecular
mechanisms
responsible
anti-cancer
effect
PARPi
are
thought
to
implicate
both
catalytic
inhibition
trapping
enzymes
on
DNA.
relative
contribution
each
tumor-specific
cytotoxicity
still
unclear.
It
paramount
understand
these
PAR-dependent
mechanisms,
given
resistance
challenge
clinic.
Deciphering
complex
between
defining
non-trapping
events
contribute
anti-tumour
activity
essential
developing
improved
therapeutic
strategies.
With
this
perspective,
we
review
current
understanding
biology
context
DNA
damage
response
(DDR)
underlying
resistance.
Biology,
Год журнала:
2023,
Номер
12(6), С. 797 - 797
Опубликована: Май 31, 2023
Multiple
factors
can
trigger
cell
death
via
various
pathways,
and
nuclear
proteases
have
emerged
as
essential
regulators
of
these
processes.
While
certain
been
extensively
studied
their
mechanisms
action
are
well
understood,
others
remain
poorly
characterized.
Regulation
protease
activity
is
a
promising
therapeutic
strategy
that
could
selectively
induce
favorable
pathways
in
specific
tissues
or
organs.
Thus,
by
understanding
the
roles
newly
discovered
predicted
processes,
we
identify
new
pharmacological
targets
for
improving
outcomes.
In
this
article,
delved
into
role
several
types
explore
potential
avenues
future
research
development.
Antioxidants,
Год журнала:
2023,
Номер
12(10), С. 1790 - 1790
Опубликована: Сен. 22, 2023
Macrophage
polarization
is
highly
involved
in
autoimmunity.
M1
polarized
macrophages
drive
inflammation
and
undergo
metabolic
reprogramming,
involving
downregulation
of
mitochondrial
energy
production
acceleration
glycolysis.
migration
inhibitory
factor
(MIF),
an
enigmatic
tautomerase
(ketonase
enolase),
was
discovered
to
regulate
polarization.
Here,
we
reveal
that
KRP-6,
a
potent
selective
MIF
ketonase
inhibitor,
reduces
MIF-induced
human
blood
eosinophil
neutrophil
similarly
ISO-1,
the
most
investigated
inhibitor.
We
equally
KRP-6
prevents
macrophage
ROS
IFN-γ-treated
cells.
During
improved
bioenergetics
by
ameliorating
basal
respiration,
ATP
production,
coupling
efficiency
maximal
respiration
LPS+IFN-γ-treated
also
reduced
glycolytic
flux
macrophages.
Moreover,
inhibitor
attenuated
LPS+IFN-γ-induced
PARP-1
PARP-2
mRNA
expression.
conclude
represents
promising
novel
therapeutic
compound
for
autoimmune
diseases,
which
strongly
involves