Frontiers in Genetics,
Год журнала:
2023,
Номер
14
Опубликована: Апрель 18, 2023
Background:
Gastric
intestinal
metaplasia
(IM)
is
the
key
link
of
gastric
precancerous
lesions.
Ferroptosis
a
novel
form
programmed
cell
death.
However,
its
impact
on
IM
unclear.
The
focus
this
study
to
identify
and
verify
ferroptosis-related
genes
(FRGs)
that
may
be
involved
in
by
bioinformatics
analysis.
Materials
methods:
Differentially
expressed
(DEGs)
were
obtained
from
microarray
dataset
GSE60427
GSE78523
downloaded
Gene
Expression
Omnibus
(GEO)
database.
(DEFRGs)
overlapping
DEGs
FRGs
got
FerrDb.
DAVID
database
was
used
for
functional
enrichment
Protein-protein
interaction
(PPI)
analysis
Cytoscape
software
screen
hub
gene.
In
addition,
we
built
receiver
operating
characteristic
(ROC)
curve
verified
relative
mRNA
expression
quantitative
reverse
transcription-polymerase
chain
reaction
(qRT-PCR).
Finally,
CIBERSORT
algorithm
analyze
immune
infiltration
IM.
Results:
First,
total
17
DEFRGs
identified.
Second,
gene
module
identified
considered
as
gene:
PTGS2,
HMOX1,
IFNG,
NOS2.
Third,
ROC
showed
HMOX1
NOS2
had
good
diagnostic
characteristics.
qRT-PCR
experiments
confirmed
differential
normal
tissues.
immunoassay
proportion
T
cells
regulatory
(Tregs)
macrophages
M0
relatively
higher,
while
CD4
memory
activated
dendritic
lower.
Conclusion:
We
found
significant
associations
between
IM,
biomarkers
therapeutic
targets
These
results
enhance
our
understanding
contribute
treatment.
Immunological Reviews,
Год журнала:
2023,
Номер
321(1), С. 228 - 245
Опубликована: Окт. 30, 2023
Summary
Ferroptosis
is
a
novel
form
of
programmed
cell
death
morphologically,
genetically,
and
biochemically
distinct
from
other
pathways
characterized
by
the
accumulation
iron‐dependent
lipid
peroxides
oxidative
damage.
It
now
understood
that
ferroptosis
plays
an
essential
role
in
various
biological
processes,
especially
metabolism
iron,
lipids,
amino
acids.
Gastric
cancer
(GC)
prevalent
malignant
tumor
worldwide
with
low
early
diagnosis
rates
high
metastasis
rates,
accounting
for
its
relatively
poor
prognosis.
Although
chemotherapy
commonly
used
to
treat
GC,
drug
resistance
often
leads
therapeutic
outcomes.
In
last
several
years,
extensive
research
on
has
highlighted
significant
potential
GC
therapy,
providing
promising
strategy
address
associated
standard
therapies.
this
review,
we
offer
summary
key
regulatory
factors
related
mechanisms
underlying
ferroptosis.
Various
inducers
inhibitors
specifically
targeting
are
uncovered.
Additionally,
explore
prospective
applications
outcomes
these
agents
field
emphasizing
their
capacity
improve
patient
population.
Journal of Medicinal Chemistry,
Год журнала:
2024,
Номер
67(4), С. 2238 - 2263
Опубликована: Фев. 2, 2024
Ferroptosis
is
a
type
of
iron-dependent
programmed
cell
death
characterized
by
the
dysregulation
iron
metabolism
and
accumulation
lipid
peroxides.
This
nonapoptotic
mode
implicated
in
various
physiological
pathological
processes.
Recent
findings
have
underscored
its
potential
as
an
innovative
strategy
for
cancer
treatment,
particularly
against
recalcitrant
malignancies
that
are
resistant
to
conventional
therapies.
article
focuses
on
ferroptosis-based
therapeutic
strategies
precision
covering
molecular
mechanisms
ferroptosis,
four
major
types
ferroptosis
inducers
their
inhibitory
effects
diverse
carcinomas,
detection
fluorescent
probes,
implementation
image-guided
therapy.
These
state-of-the-art
tactics
manifested
enhanced
selectivity
efficacy
malignant
carcinomas.
Given
administration
therapy
still
at
burgeoning
stage,
some
challenges
future
perspectives
discussed
clinical
translation
into
treatment.
Biochemical Pharmacology,
Год журнала:
2024,
Номер
225, С. 116257 - 116257
Опубликована: Май 4, 2024
Gastric
cancer
remains
among
the
deadliest
neoplasms
worldwide,
with
limited
therapeutic
options.
Since
efficacies
of
targeted
therapies
are
unsatisfactory,
drugs
broader
mechanisms
action
rather
than
a
single
oncogene
inhibition
needed.
Preclinical
studies
have
identified
histone
deacetylases
(HDAC)
as
potential
targets
in
gastric
cancer.
However,
mechanism(s)
HDAC
inhibitors
(HDACi)
only
partially
understood.
This
is
particularly
true
regard
to
ferroptosis
an
emerging
concept
cell
death.
In
panel
lines
different
molecular
characteristics,
tumor
inhibitory
effects
HDACi
were
studied.
Lipid
peroxidation
levels
measured
and
proteome
analysis
was
performed
for
in-depth
characterization
alterations
upon
inhibition.
on
important
genes
validated
mRNA
protein
level.
Upon
treatment,
lipid
found
increased
all
lines.
Class
I
(VK1,
entinostat)
showed
same
toxicity
profile
pan-HDACi
vorinostat.
Proteome
revealed
significant
concordant
expression
proteins
related
induction.
Key
enzymes
like
ACSL4,
POR
or
SLC7A11
distinct
their
patterns,
providing
explanation
peroxidation.
Results
also
confirmed
primary
human
tissue
cultures
relevant
ex
vivo
model.
We
identify
induction
new
mechanism
class
Notably,
these
findings
independent
genetic
background
lines,
thus
introducing
more
general
principle.
Journal of Animal Science,
Год журнала:
2022,
Номер
101
Опубликована: Дек. 27, 2022
Abstract
In
vitro-cultured
oocytes
are
separated
from
the
follicular
micro-environment
in
vivo
and
more
vulnerable
than
to
changes
external
environment.
This
vulnerability
disrupts
homeostasis
of
intracellular
environment,
affecting
oocyte
meiotic
completion,
subsequent
embryonic
developmental
competence
vitro.
Glycine,
one
main
components
glutathione
(GSH),
plays
an
important
role
protection
porcine
However,
protective
mechanism
glycine
needs
be
further
clarified.
Our
results
showed
that
supplementation
promoted
cumulus
cell
expansion
maturation.
Detection
development
ability
significantly
increased
cleavage
rate
blastocyst
during
vitro
fertilization
(IVF).
SMART-seq
revealed
this
effect
was
related
glycine-mediated
regulation
membrane
structure
function.
Exogenous
addition
levels
anti-oxidant
GSH
expression
anti-oxidant-related
genes
(glutathione
peroxidase
4
[GPX4],
catalase
[CAT],
superoxide
dismutase
1
[SOD1],
2
[SOD2],
mitochondrial
solute
carrier
family
25,
member
39
[SLC25A39]),
decreased
lipid
peroxidation
caused
by
reactive
oxygen
species
(ROS)
reduced
level
malondialdehyde
(MDA)
enhancing
functions
mitochondria,
peroxisomes
droplets
(LDs)
metabolism-related
factors
(peroxisome
proliferator
activated
receptor
coactivator
alpha
[PGC-1α],
peroxisome
proliferator-activated
γ
[PPARγ],
sterol
regulatory
element
binding
factor
[SREBF1],
autocrine
motility
[AMFR],
ATP).
These
effects
ferroptosis
maintained
normal
function
membrane.
suggest
maturation
later
regulating
ROS-induced
metabolism,
thereby
protecting
against
biomembrane
damage.
Antioxidants,
Год журнала:
2023,
Номер
12(9), С. 1712 - 1712
Опубликована: Сен. 2, 2023
Gastric
cancer
(GC)
is
the
fifth
most
common
worldwide
and
makes
up
a
significant
component
of
global
burden.
Helicobacter
pylori
(H.
pylori)
influential
risk
factor
for
GC,
with
International
Agency
Research
on
Cancer
classifying
it
as
Class
I
carcinogen
GC.
H.
has
been
shown
to
persist
in
stomach
acid
decades,
causing
damage
stomach’s
mucosal
lining,
altering
gastric
hormone
release
patterns,
potentially
function.
Epidemiological
studies
have
that
eliminating
reduces
metachronous
cancer.
Evidence
shows
various
molecular
alterations
are
present
precancerous
lesions
associated
an
infection.
However,
although
can
cause
oxidative
stress-induced
cancer,
antioxidants
being
treatment
exact
mechanism
underlying
GC
etiology
not
fully
understood.
This
review
provides
overview
recent
research
exploring
pathophysiology
pylori-induced
stress
antioxidant
supplements
reduce
or
even
eliminate
occurrence.