Phytotherapy Research,
Journal Year:
2024,
Volume and Issue:
38(4), P. 1783 - 1798
Published: Feb. 7, 2024
Abstract
Macrophage
inflammation
plays
a
central
role
during
the
development
and
progression
of
sepsis,
while
regulation
macrophages
by
parthanatos
has
been
recently
identified
as
novel
strategy
for
anti‐inflammatory
therapies.
This
study
was
designed
to
investigate
therapeutic
potential
mechanism
pimpinellin
against
LPS‐induced
sepsis.
PARP1
PAR
activation
were
detected
western
blot
or
immunohistochemistry.
Cell
death
assessed
flow
cytometry
blot.
metabolism
measured
with
Seahorse
XFe24
extracellular
flux
analyzer.
C57,
knockout,
conditional
knock‐in
mice
used
in
model
sepsis
caused
LPS
assess
effect
pimpinellin.
Here,
we
found
that
can
specifically
inhibit
macrophage
activation.
In
vitro
studies
showed
could
expression
inflammatory
cytokines
signal
pathway
inhibiting
overexpression
PARP1.
addition,
increased
survival
rate
LPS‐treated
mice,
thereby
preventing
Further
research
confirmed
overexpressing
attenuated
pimpinellin,
knockdown
abolished
protective
promote
ubiquitin‐mediated
degradation
through
RNF146.
is
first
demonstrate
inhibits
excessive
responses
promoting
Cell,
Journal Year:
2023,
Volume and Issue:
186(21), P. 4475 - 4495
Published: Oct. 1, 2023
ADP-ribosylation
is
a
ubiquitous
modification
of
biomolecules,
including
proteins
and
nucleic
acids,
that
regulates
various
cellular
functions
in
all
kingdoms
life.
The
recent
emergence
new
technologies
to
study
has
reshaped
our
understanding
the
molecular
mechanisms
govern
establishment,
removal,
recognition
this
modification,
as
well
its
impact
on
organismal
function.
These
advances
have
also
revealed
intricate
involvement
human
physiology
pathology
enormous
potential
their
manipulation
holds
for
therapy.
In
review,
we
present
state-of-the-art
findings
covering
work
structural
biology,
biochemistry,
cell
clinical
aspects
ADP-ribosylation.
Biomedicine & Pharmacotherapy,
Journal Year:
2022,
Volume and Issue:
156, P. 113903 - 113903
Published: Oct. 22, 2022
Doxorubicin
(DOX),
as
a
kind
of
chemotherapy
agent
with
remarkable
therapeutic
effect,
can
be
used
to
treat
diverse
malignant
tumors
clinically.
Dose-dependent
cardiotoxicity
is
the
most
serious
adverse
reaction
after
DOX
treatment,
which
eventually
leads
cardiomyopathy
and
greatly
limits
clinical
application
DOX.
DOX-induced
not
result
single
mechanistic
action,
multiple
mechanisms
have
been
discovered
demonstrated
experimentally,
such
oxidative
stress,
inflammation,
mitochondrial
damage,
calcium
homeostasis
disorder,
ferroptosis,
autophagy
apoptosis.
Dexrazoxane
(DEX)
only
protective
approved
by
FDA
for
treatment
cardiomyopathy,
but
its
still
has
some
limitations.
Therefore,
we
need
find
other
effective
drugs
soon
possible.
In
this
paper,
that
effectively
improve
in
recent
years
are
mainly
described
from
aspects
natural
drugs,
endogenous
substances,
new
dosage
forms,
herbal
medicines,
chemical
modification
marketed
drugs.
The
aim
present
study
evaluate
effects
these
on
anticancer
curative
effects,
so
provide
reference
value
future.
Frontiers in Cell and Developmental Biology,
Journal Year:
2023,
Volume and Issue:
11
Published: March 22, 2023
BRCA1
and
BRCA2
play
a
critical
role
in
variety
of
molecular
processes
related
to
DNA
metabolism,
including
homologous
recombination
mediating
the
replication
stress
response.
Individuals
with
mutations
(
BRCA1/2
)
genes
have
significantly
higher
risk
developing
various
types
cancers,
especially
cancers
breast,
ovary,
pancreas,
prostate.
Currently,
Food
Drug
Administration
(FDA)
has
approved
four
PARP
inhibitors
(PARPi)
treat
mutations.
In
this
review,
we
will
first
summarize
clinical
outcomes
FDA-approved
PARPi
treating
deficient
cancers.
We
then
discuss
evidence
supporting
hypothesis
that
cytotoxic
effect
is
likely
due
inducing
excessive
at
difficult-to-replicate
(DTR)
genomic
regions
mutated
tumors.
Finally,
ongoing
preclinical
studies
on
how
combine
immuno-oncology
drugs
further
improve
outcomes.
Molecular Cell,
Journal Year:
2024,
Volume and Issue:
84(4), P. 659 - 674.e7
Published: Jan. 23, 2024
Inactivating
mutations
in
the
BRCA1
and
BRCA2
genes
impair
DNA
double-strand
break
(DSB)
repair
by
homologous
recombination
(HR),
leading
to
chromosomal
instability
cancer.
Importantly,
BRCA1/2
deficiency
also
causes
therapeutically
targetable
vulnerabilities.
Here,
we
identify
dependency
on
end
resection
factor
EXO1
as
a
key
vulnerability
of
BRCA1-deficient
cells.
generates
poly(ADP-ribose)-decorated
lesions
during
S
phase
that
associate
with
unresolved
DSBs
genomic
but
not
wild-type
or
BRCA2-deficient
Our
data
indicate
BRCA1/EXO1
double-deficient
cells
accumulate
due
impaired
single-strand
annealing
(SSA)
top
their
HR
defect.
In
contrast,
retain
SSA
activity
absence
hence
tolerate
loss.
Consistent
EXO1-mediated
SSA,
find
BRCA1-mutated
tumors
show
elevated
expression
increased
SSA-associated
scars
compared
BRCA1-proficient
tumors.
Overall,
our
findings
uncover
promising
therapeutic
target
for
Journal of Extracellular Vesicles,
Journal Year:
2024,
Volume and Issue:
13(4)
Published: April 1, 2024
It
is
well
known
that
DNA
damage
can
cause
apoptosis.
However,
whether
apoptosis
and
its
metabolites
contribute
to
repair
largely
unknown.
In
this
study,
we
found
apoptosis-deficient
Fas
Molecular Cell,
Journal Year:
2023,
Volume and Issue:
83(10), P. 1743 - 1760.e11
Published: April 27, 2023
PARP1,
an
established
anti-cancer
target
that
regulates
many
cellular
pathways,
including
DNA
repair
signaling,
has
been
intensely
studied
for
decades
as
a
poly(ADP-ribosyl)transferase.
Although
recent
studies
have
revealed
the
prevalence
of
mono-ADP-ribosylation
upon
damage,
it
was
unknown
whether
this
signal
plays
active
role
in
cell
or
is
just
byproduct
poly-ADP-ribosylation.
By
engineering
SpyTag-based
modular
antibodies
sensitive
and
flexible
detection
mono-ADP-ribosylation,
fluorescence-based
sensors
live-cell
imaging,
we
demonstrate
serine
constitutes
second
wave
PARP1
signaling
shaped
by
HPF1/PARP1
ratio.
Multilevel
chromatin
proteomics
reveals
histone
readers,
RNF114,
ubiquitin
ligase
recruited
to
lesions
through
zinc-finger
domain,
modulating
damage
response
telomere
maintenance.
Our
work
provides
technological
framework
illuminating
ADP-ribosylation
wide
range
applications
biological
contexts
establishes
important
information
carrier
signaling.
Neurobiology of Disease,
Journal Year:
2023,
Volume and Issue:
187, P. 106314 - 106314
Published: Oct. 1, 2023
Poly
(ADP-ribose)
polymerase-1
(PARP-1)
is
the
most
extensively
studied
member
of
PARP
superfamily,
with
its
primary
function
being
facilitation
DNA
damage
repair
processes.
Parthanatos
a
type
regulated
cell
death
cascade
initiated
by
PARP-1
hyperactivation,
which
involves
multiple
subroutines,
including
accumulation
ADP-ribose
polymers
(PAR),
binding
PAR
and
apoptosis-inducing
factor
(AIF),
release
AIF
from
mitochondria,
translocation
AIF/macrophage
migration
inhibitory
(MIF)
complex,
massive
MIF-mediated
fragmentation.
Over
past
few
decades,
role
in
central
nervous
system
health
disease
has
received
increasing
attention.
In
this
review,
we
discuss
biological
functions
neural
proliferation
differentiation,
memory
formation,
brain
ageing,
epigenetic
regulation.
We
then
elaborate
on
involvement
PARP-1-dependant
parthanatos
various
neuropathological
processes,
such
as
oxidative
stress,
neuroinflammation,
mitochondrial
dysfunction,
excitotoxicity,
autophagy
damage,
endoplasmic
reticulum
(ER)
stress.
Additional
highlight
contains
PARP-1's
implications
initiation,
progression,
therapeutic
opportunities
for
different
neurological
illnesses,
neurodegenerative
diseases,
stroke,
autism
spectrum
disorder
(ASD),
sclerosis
(MS),
epilepsy,
neuropathic
pain
(NP).
Finally,
emerging
insights
into
repurposing
inhibitors
management
diseases
are
provided.
This
review
aims
to
summarize
exciting
advancements
critical
disorders,
may
open
new
avenues
options
targeting
or
parthanatos.
Seminars in Oncology,
Journal Year:
2023,
Volume and Issue:
51(1-2), P. 2 - 18
Published: Sept. 6, 2023
Genome
integrity
is
under
constant
insult
from
endogenous
and
exogenous
sources.
In
order
to
cope,
eukaryotic
cells
have
evolved
an
elaborate
network
of
DNA
repair
that
can
deal
with
diverse
lesion
types
exhibits
considerable
functional
redundancy.
PARP1
a
major
sensor
breaks
established
putative
roles
in
number
pathways
within
the
network,
including
single-
double-strand
as
well
protection
replication
fork.
Importantly,
target
small-molecule
PARP
inhibitors
(PARPi),
which
are
employed
treatment
homologous
recombination
(HR)-deficient
tumors,
latter
particularly
susceptible
accumulation
damage
due
inability
efficiently
highly
toxic
breaks.
The
clinical
success
PARPi
has
fostered
extensive
research
into
biology,
shed
light
on
involvement
various
genomic
transactions.
A
goal
field
been
understand
relationship
between
catalytic
inhibition
trapping.
specific
consequences
trapping
stability
basis
for
cytotoxicity
remain
matter
debate.
Finally,
increasingly
recognized
its
capacity
elicit/modulate
anti-tumor
immunity.
potential
is,
however,
hindered
by
development
resistance.
Hence,
efforts
invested
identifying
factors
promote
resistance
or
sensitize
PARPi.
current
review
provides
summary
advances
our
understanding
mechanistic
nature,
molecular
inhibition,
mechanisms
give
rise
Journal of Biological Chemistry,
Journal Year:
2023,
Volume and Issue:
299(9), P. 105096 - 105096
Published: July 26, 2023
PARP14/BAL2
is
a
large
multidomain
enzyme
involved
in
signaling
pathways
with
relevance
to
cancer,
inflammation,
and
infection.
Inhibition
of
its
mono-ADP-ribosylating
PARP
homology
domain
three
ADP-ribosyl
binding
macro
domains
has
been
regarded
as
potential
means
therapeutic
intervention.
Macrodomains-2
-3
are
known
stably
bind
ADP-ribosylated
target
proteins,
but
the
function
macrodomain-1
remained
somewhat
elusive.
Here,
we
used
biochemical
assays
ADP-ribosylation
levels
characterize
PARP14
homologous
PARP9.
Our
results
show
that
both
macrodomains
display
an
glycohydrolase
activity
not
directed
toward
specific
protein
side
chains.
unable
degrade
poly(ADP-ribose),
enzymatic
product
PARP1.
The
F926A
mutation
F244A
PARP9
strongly
reduced
respective
macrodomains,
suggesting
mechanistic
Mac1
SARS-CoV-2
Nsp3
protein.
This
study
adds
two
new
enzymes
previously
six
human
glycohydrolases.
have
key
implications
for
how
will
be
studied
their
functions
understood.