Journal of Biomedical Science,
Journal Year:
2023,
Volume and Issue:
30(1)
Published: June 27, 2023
Abstract
Background
Emerging
research
has
reported
that
circular
RNAs
(circRNAs)
play
important
roles
in
cardiac
cell
death
after
myocardial
ischemia
and
reperfusion
(I/R).
Ferroptosis,
a
new
form
of
discovered
recent
years,
been
proven
to
participate
the
regulation
I/R.
This
study
used
circRNA
sequencing
explore
key
ferroptosis
I/R
mechanisms
potential
function.
Methods
We
performed
circRNAs
differentially
expressed
quantitative
polymerase
chain
reactions
determine
expression
different
tissues
detect
subcellular
localization
cardiomyocyte.
Gain-
loss-of-function
experiments
were
aimed
examine
function
cardiomyocyte
tissue
damage
RNA
pull-down
was
applied
proteins
interacting
with
circRNA.
Results
Here,
we
identified
ferroptosis-associated
(FEACR)
an
underlying
regulatory
role
ferroptosis.
FEACR
overexpression
suppressed
I/R-induced
infarction
ameliorated
inhibition
induces
cardiomyocytes
inhibits
hypoxia
reoxygenation-induced
Mechanistically,
directly
bound
nicotinamide
phosphoribosyltransferase
(NAMPT)
enhanced
protein
stability
NAMPT,
which
increased
NAMPT-dependent
Sirtuin1
(Sirt1)
expression,
promoted
transcriptional
activity
forkhead
box
O1
(FOXO1)
by
reducing
FOXO1
acetylation
levels.
further
upregulated
transcription
ferritin
heavy
1
(
Fth1
),
suppressor,
resulted
Conclusions
Our
finding
reveals
FEACR-mediated
NAMPT-Sirt1-FOXO1-FTH1
signaling
axis
participates
protects
heart
against
injury.
Thus,
its
downstream
factors
could
be
novel
targets
for
alleviating
ferroptosis-related
injury
ischemic
diseases.
Free Radical Biology and Medicine,
Journal Year:
2020,
Volume and Issue:
160, P. 303 - 318
Published: Aug. 23, 2020
Ferroptosis
is
a
reactive
oxygen
species
(ROS)-
and
iron-dependent
form
of
regulated
cell
death
(RCD),
playing
critical
roles
in
organ
injury
targeting
therapy
cancers.
Previous
studies
have
demonstrated
that
ferroptosis
participates
the
development
cardiomyopathy
including
cardiac
hypertrophy,
diabetic
doxorubicin-induced
cardiotoxicity.
However,
role
sepsis-induced
remains
unclear.
This
study
aimed
to
explore
underlying
mechanism
on
lipopolysaccharide
(LPS)-induced
injury.
Mice
were
injected
with
LPS
(10
mg/kg)
for
12
h
generate
experimental
sepsis.
Ferrostatin-1
(Fer-1)
Dexrazoxane
(DXZ)
used
suppress
mice
increased
levels
ferroptotic
markers
involving
prostaglandin
endoperoxide
synthase
2
(PTGS2),
malonaldehyde
(MDA)
lipid
ROS,
apart
from
resulting
obvious
mitochondria
damage,
which
alleviated
by
Fer-1
DXZ.
In
vitro
experiments
showed
inhibited
LPS-induced
peroxidation
H9c2
myofibroblasts
while
erastin
sorafenib
aggravated
ferroptosis.
Additionally,
DXZ
improved
survival
rate
function
Mechanistically,
expression
nuclear
receptor
coactivator
4
(NCOA4)
level
intracellular
Fe2+
but
decreased
ferritin.
NCOA4
could
directly
interact
ferritin
degrade
it
ferritinophagy-dependent
manner,
subsequently
released
great
amount
iron.
Cytoplasmic
further
activated
siderofexin
(SFXN1)
mitochondrial
membrane,
turn
transported
cytoplasmic
into
mitochondria,
giving
rise
production
ROS
Based
these
findings,
we
concluded
ferritinophagy-mediated
one
mechanisms
contributing
Targeting
cardiomyocytes
may
be
therapeutic
strategy
preventing
sepsis
future.
Theranostics,
Journal Year:
2021,
Volume and Issue:
11(7), P. 3052 - 3059
Published: Jan. 1, 2021
Cell
death
is
an
important
component
of
the
pathophysiology
cardiovascular
disease.
An
understanding
how
cardiomyocytes
die,
and
why
regeneration
cells
in
heart
limited,
a
critical
area
study.
Ferroptosis
form
regulated
cell
that
characterized
by
iron
overload,
leading
to
accumulation
lethal
levels
lipid
hydroperoxides.
The
metabolism
iron,
lipids,
amino
acids
glutathione
tightly
controls
initiation
execution
ferroptosis.
Emerging
evidence
shows
ferroptosis
closely
associated
with
occurrence
progression
various
diseases.
In
recent
years,
has
been
found
play
roles
cardiomyopathy,
myocardial
infarction,
ischemia/reperfusion
injury,
failure.
This
article
reviews
mechanisms
which
initiated
controlled
discusses
as
novel
therapeutic
target
for
Journal of Diabetes Research,
Journal Year:
2021,
Volume and Issue:
2021, P. 1 - 10
Published: June 28, 2021
Ferroptosis
is
a
novel
form
of
nonapoptotic
regulated
cell
death
(RCD).
It
features
iron-dependent
lipid
peroxide
accumulation
accompanied
by
inadequate
redox
enzymes,
especially
glutathione
peroxidase
4
(GPX4).
RAS-selective
lethal
3
(RSL3),
erastin,
and
ferroptosis
inducing
56
(FIN56)
induce
via
different
manners
targeting
GPX4
function.
Acyl-CoA
synthetase
long-chain
family
(ACSL4),
lysophosphatidylcholine
acyltransferase
(LPCAT3),
lipoxygenases
(LOXs)
participate
in
the
production
peroxides.
Heat
shock
protein
B
member
1
(HSPB1)
nuclear
receptor
coactivator
(NCOA4)
regulate
iron
homeostasis
preventing
caused
high
concentration
intracellular
iron.
ubiquitous
our
body
as
it
exists
both
physiologic
pathogenic
processes.
involved
glucose-stimulated
insulin
secretion
(GSIS)
impairment
arsenic-induced
pancreatic
damage
pathogenesis
diabetes.
Moreover,
iron-sulfur
(Fe-S)
cluster
influence
each
other,
causing
mitochondrial
accumulation,
more
reactive
oxygen
species
(ROS)
production,
endoplasmic
reticulum
(ER)
stress,
failure
biosynthesis
insulin,
β-cells.
In
addition,
also
engages
diabetic
complications
such
myocardial
ischemia
cardiomyopathy
(DCM).
this
review,
we
summarize
mechanism
its
association
with
type
2
diabetes
mellitus
(T2DM).
Bioengineered,
Journal Year:
2021,
Volume and Issue:
12(2), P. 10924 - 10934
Published: Oct. 26, 2021
Ferroptosis
is
an
important
form
of
myocardial
cell
death
in
ischemia-reperfusion
injury
(MIRI).
Naringenin
(NAR),
as
a
flavonoid,
has
significant
advantage
improving
MIRI.
But
the
regulatory
effect
and
mechanism
NAR
on
ferroptosis
MIRI
have
not
been
reported.
After
rats
were
given
induced
to
(MI/R)
injury,
Tetrazolium
chloride
(TTC)
staining
was
used
detect
infarction
area
rats,
Hematoxylin-eosin
(H&E)
injury.
The
markers
tissue
inflammation
detected
by
ELISA.
Serum
creatine
kinase
creatin
(CPK),
Lactate
dehydrogenase
(LDH),
lipid
peroxide
(LPO)
oxidative
stress
related
levels
measured.
In
addition,
iron
detection
kits
total
Fe2+
cardiac
tissues,
western
blot
expression
ferroptosis-related
proteins
nuclear
factor-erythroid
factor
2-related
2
(Nrf2)
glutathione
peroxidase
4
(GPX4).
At
cellular
level,
H9C2
cardiomyocytes
hypoxia/reoxygenation
(H/R),
inducer
Erastin
administered
viability,
indicators,
expressions
Nrf2
GPX4,
explore
mechanisms
involved.
alleviated
MI/R-induced
pathological
damage,
peroxidation
rats.
adjusted
NRF2
/System
xc
-
/GPX4
axis
improved
ferroptosis.
reversed
protective
H/R-induced
cardiomyocytes.
conclusion,
can
alleviate
regulating
Nrf2/System
xc-/GPX4
inhibit
Gene,
Journal Year:
2021,
Volume and Issue:
808, P. 145968 - 145968
Published: Sept. 14, 2021
Resveratrol
(Res)
is
a
polyphenol
with
variety
of
biological
activities.
However,
whether
Res
can
prevent
myocardial
ischemia-reperfusion
(I/R)
injury
not
yet
known.
This
study
aimed
to
investigate
the
protective
effect
on
I/R
and
explore
its
potential
mechanism.
H9c2
cells
were
used
for
in
vitro
experiments
oxygen-glucose
deprivation/reoxygenation
(OGD/R)
model
was
established.
Rats
ligated
perfused
by
left
anterior
descending
branch
or
without
(50
mg/kg·bw)
14
days.The
higher
level
oxidative
stress
Fe2+
content
observed
OGD/R-induced
than
that
normal
cells.
showed
increased
ferroptosis,
mainly
reducing
expression
glutathione
peroxidase
4
(GPX4)
ferritin
heavy
chain
1
(FTH1),
but
enhancing
transferrin
receptor
(TfR1).
Both
vivo
indicated
reduced
Fe2
+
content.
In
addition,
inhibited
decreased
TfR1
expression,
expressions
FTH1
GPX4
rats.
Moreover,
we
found
ferroptosis
regulation
ubiquity
specific
peptidase
19
(USP19)-Beclin1
autophagy.
protects
against
via
attenuating
ferroptosis.
could
be
agent
prevention
injury.