Abstract
Tumor
tissues
exhibit
elevated
oxidative
stress,
with
the
cystine‐glutamate
transporter
x
CT
solute
carrier
family
7
member
11
(
CT/SLC7A11)
protecting
cancer
cells
from
damage
by
facilitating
cystine
uptake
for
glutathione
synthesis.
Disulfidptosis,
a
newly
identified
form
of
programmed
cell
death
(PCD),
occurs
in
high
CT/SLC7A11
expression
under
glucose‐deprived
conditions.
Distinct
other
PCD
pathways,
disulfidptosis
is
characterized
aberrant
disulfide
bond
formation
and
cellular
dysfunction,
ultimately
resulting
death.
This
novel
mechanism
offers
remarkable
therapeutic
potential
targeting
inherent
stress
vulnerabilities
rapidly
growing
cells.
Advances
nanotechnology
enable
development
nanomaterials
capable
inducing
reactive
oxygen
species
(ROS)
generation,
disrupting
bonds.
In
addition,
they
are
to
deliver
agents
directly
tumors,
thereby
improving
precision
minimizing
off‐target
effects.
Moreover,
combining
ROS‐induced
immunogenic
can
remodel
tumor
microenvironment
enhance
anti‐tumor
immunity.
review
explores
mechanisms
underlying
disulfidptosis,
its
treatment,
synergistic
role
amplifying
Selective
induction
using
represents
promising
strategy
achieving
more
effective,
selective,
less
toxic
therapies.
Antioxidants,
Год журнала:
2022,
Номер
11(12), С. 2444 - 2444
Опубликована: Дек. 11, 2022
SLC7A11
is
a
cell
transmembrane
protein
composing
the
light
chain
of
system
xc-,
transporting
extracellular
cystine
into
cells
for
cysteine
production
and
GSH
biosynthesis.
critical
gateway
redox
homeostasis
by
maintaining
cellular
levels
that
counter
oxidative
stress
suppress
ferroptosis.
overexpressed
in
various
human
cancers
regulates
tumor
development,
proliferation,
metastasis,
microenvironment,
treatment
resistance.
Upregulation
needed
to
adapt
high
microenvironments
maintain
homeostasis.
High
basal
ROS
dependences
cancer
render
them
vulnerable
further
stress.
Therefore,
cyst(e)ine
depletion
may
be
an
effective
new
strategy
treatment.
However,
effectiveness
inhibitors
or
cyst(e)inase
has
been
established
many
preclinical
studies
but
not
reached
stage
clinical
trials
patients.
A
better
understanding
functions
regulating
interacting
with
redox-active
proteins
their
substrates
could
promising
this
review
intends
understand
role
antioxidant
signaling,
regulators
bioavailability
cancer,
linking
signaling
metabolism
targeting
novel
therapeutics.
Cell Death Discovery,
Год журнала:
2023,
Номер
9(1)
Опубликована: Март 8, 2023
Reprogramming
of
lipid
metabolism,
which
modulates
energy
utilization
and
cell
signaling,
maintains
survival
promotes
cancer
metastasis
in
cells.
Ferroptosis
is
a
type
necrosis
caused
by
an
overload
oxidation,
has
been
demonstrated
to
be
involved
metastasis.
However,
the
mechanism
fatty
acid
metabolism
regulates
anti-ferroptosis
signaling
pathways
not
fully
understood.
The
formation
ovarian
spheroids
helps
counteract
hostile
microenvironment
peritoneal
cavity
with
low
oxygen,
shortage
nutrients,
subjected
platinum
therapy.
Previously,
we
that
Acyl-CoA
synthetase
long-chain
family
member
1
(ACSL1)
metastases
cancer,
but
still
well
elucidated.
In
this
study,
demonstrate
under
exposure
chemotherapy
increased
levels
proteins
as
ACSL1.
Inhibition
ferroptosis
can
enhance
spheroid
vice
versa.
Genetic
manipulation
ACSL1
expression
showed
reduced
level
oxidation
resistance
ferroptosis.
Mechanistically,
N-myristoylation
suppressor
(FSP1),
resulting
inhibition
its
degradation
translocation
membrane.
increase
myristoylated
FSP1
functionally
counteracted
oxidative
stress-induced
Clinical
data
also
suggested
protein
was
positively
correlated
negatively
markers
4-HNE
PTGS2.
conclusion,
study
enhances
antioxidant
capacity
increases
modulating
myristoylation
FSP1.
Cell Death and Disease,
Год журнала:
2024,
Номер
15(2)
Опубликована: Фев. 15, 2024
Abstract
Cancer
cells
develop
multiple
strategies
to
evade
T
cell-mediated
killing.
On
one
hand,
cancer
may
preferentially
rely
on
certain
amino
acids
for
rapid
growth
and
metastasis.
the
other
sufficient
nutrient
availability
uptake
are
necessary
mounting
an
effective
cell
anti-tumor
response
in
tumor
microenvironment
(TME).
Here
we
demonstrate
that
outcompete
cystine
due
high
Slc7a11
expression.
This
competition
induces
T-cell
exhaustion
ferroptosis,
characterized
by
diminished
memory
formation
cytokine
secretion,
increased
PD-1
TIM-3
expression,
as
well
intracellular
oxidative
stress
lipid-peroxide
accumulation.
Importantly,
either
deletion
or
intratumoral
supplementation
improves
immunity.
Mechanistically,
deprivation
disrupts
glutathione
synthesis,
but
promotes
CD36
mediated
lipid
dysregulated
cystine/glutamate
exchange.
Moreover,
enforced
expression
of
glutamate-cysteine
ligase
catalytic
subunit
(Gclc)
synthesis
prevents
upregulation,
thus
boosting
Our
findings
reveal
metabolic
checkpoint
orchestrates
survival
differentiation,
highlight
Gclc
a
potential
therapeutic
target
enhancing
function.
Abstract
The
growth
state
of
tumor
cells
is
strictly
affected
by
the
specific
abnormal
redox
status
microenvironment
(TME).
Moreover,
reactions
at
biological
level
are
also
central
and
fundamental
to
essential
energy
metabolism
in
tumors.
Accordingly,
anti‐tumor
nanodrugs
targeting
disruption
this
homeostasis
have
become
one
hot
spots
field
research
due
effectiveness
TME
modulation
efficiency
mediated
interference.
This
review
discusses
latest
results
therapy,
which
regulate
levels
oxidants
or
reductants
through
a
variety
therapeutic
strategies,
ultimately
breaking
original
“stable”
promoting
cell
death.
With
gradual
deepening
study
on
vigorous
development
nanomaterials,
it
expected
that
more
nano
drugs
based
regulation
will
be
designed
even
applied
clinically.
Cancer Cell International,
Год журнала:
2023,
Номер
23(1)
Опубликована: Июнь 6, 2023
Abstract
Background
Malignant
transformation
from
hepatic
fibrosis
to
carcinogenesis
may
be
a
therapeutic
target
for
hepatocellular
carcinoma
(HCC).
The
aim
of
this
study
was
evaluate
anti-cancer
efficacy
Pien-Tze-Huang
(PZH),
and
investigate
the
underlying
mechanisms
by
integrating
transcriptional
regulatory
network
analysis
experimental
validation.
Methods
A
diethylnitrosamine
(DEN)-induced
HCC
model
in
rats
established
used
PZH.
After
detecting
transcriptomic
profiling,
“disease-related
gene–drug
effective
target”
interaction
constructed,
candidate
targets
PZH
against
malignant
were
identified
verified
vitro.
Results
effectively
alleviated
pathological
changes
cirrhosis,
inhibited
tumor
formation
growth
DEN-induced
rats.
Additionally,
administration
reduced
levels
various
function-related
serological
indicators
significantly.
Mechanically,
ferroptosis-related
SLC7A11-GSH-GPX4
axis
might
one
potential
HCC.
Especially,
high
SLC7A11
expression
associated
with
poor
prognosis
patients.
Experimentally,
markedly
increased
trivalent
iron
ferrous
ion,
suppressed
GPX4
proteins,
GSH/GSSG
ratio
liver
tissues
Conclusions
Our
data
offer
an
evidence
that
improve
microenvironment
prevent
occurrence
through
promoting
ferroptosis
cells
via
inhibiting
axis,
implying
drug
prevention
treatment
at
early
stage.
Biomarker Research,
Год журнала:
2024,
Номер
12(1)
Опубликована: Апрель 29, 2024
Abstract
Cell
death
is
an
important
part
of
the
life
cycle,
serving
as
a
foundation
for
both
orderly
development
and
maintenance
physiological
equilibrium
within
organisms.
This
process
fundamental,
it
eliminates
senescent,
impaired,
or
aberrant
cells
while
also
promoting
tissue
regeneration
immunological
responses.
A
novel
paradigm
programmed
cell
death,
known
disulfidptosis,
has
recently
emerged
in
scientific
circle.
Disulfidptosis
defined
accumulation
cystine
by
cancer
with
high
expression
solute
carrier
family
7
member
11
(SLC7A11)
during
glucose
starvation.
causes
extensive
disulfide
linkages
between
F-actins,
resulting
their
contraction
subsequent
detachment
from
cellular
membrane,
triggering
death.
The
RAC1-WRC
axis
involved
this
phenomenon.
sparked
growing
interest
due
to
its
potential
applications
variety
pathologies,
particularly
oncology,
neurodegenerative
disorders,
metabolic
anomalies.
Nonetheless,
complexities
regulatory
pathways
remain
elusive,
precise
molecular
targets
have
yet
be
definitively
identified.
manuscript
aims
meticulously
dissect
historical
evolution,
underpinnings,
frameworks,
implications
disulfidptosis
various
disease
contexts,
illuminating
promise
groundbreaking
therapeutic
pathway
target.
Frontiers in Endocrinology,
Год журнала:
2024,
Номер
14
Опубликована: Янв. 4, 2024
Ferroptosis
is
a
type
of
controlled
cell
death
caused
by
lipid
peroxidation,
which
results
in
the
rupture
membrane.
ferroptosis
has
been
repeatedly
demonstrated
over
past
ten
years
to
be
significant
factor
number
diseases.
The
liver
iron
storage
organ,
thus
will
have
great
potential
treatment
particularly
prevalent
HCC.
In
opening
section
this
article,
we
give
general
summary
pertinent
molecular
mechanisms,
signaling
pathways,
and
associated
characteristics
ferroptosis.
primary
regulating
mechanisms
during
are
then
briefly
discussed,
conclude
summarizing
development
novel
therapeutic
strategies
used
treat
HCC
recent
years.
crucial
strategy
for
offers
new
perspectives
on
cancer.
Advanced Healthcare Materials,
Год журнала:
2024,
Номер
13(27)
Опубликована: Май 1, 2024
Abstract
Intervertebral
disc
degeneration
(IVDD)
is
the
primary
cause
of
low
back
pain,
with
oxidative
stress
being
a
recognized
factor
that
causes
its
development.
Presently,
pain
imposes
significant
global
economic
burden.
However,
effectiveness
treatments
for
IVDD
remains
extremely
limited.
Therefore,
this
study
aims
to
explore
innovative
and
effective
by
focusing
on
as
starting
point.
In
study,
an
injectable
reactive
oxygen
species‐responsive
hydrogel
(PVA‐tsPBA@SLC7A11
modRNA)
developed,
designed
achieve
rapid
loading
selective
release
chemically
synthesized
modified
mRNA
(modRNA).
SLC7A11
modRNA
specifically
used
upregulate
expression
ferroptosis
marker
SLC7A11.
The
local
injection
PVA‐tsPBA@SLC7A11
into
degenerated
intervertebral
(IVD)
results
in
cleavage
PVA‐tsPBA,
leading
enclosed
modRNA.
extent
directly
proportional
severity
IVDD,
ultimately
ameliorating
inhibiting
nucleus
pulposus
cells
(NPCs).
This
proposes
system
PVA‐tsPBA
hydrogel‐encapsulated
modRNA,
representing
potential
novel
treatment
strategy
patients
early‐stage
IVDD.