BMC Cancer,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: Jan. 9, 2025
Colorectal
cancer
(CRC)
is
a
common
gastrointestinal
cancer,
and
even
though
oxaliplatin
chemotherapy
effective,
there
high
likelihood
of
relapse,
indicating
the
presence
oxaliplatin-resistant
CRC.
Therefore,
it
crucial
to
comprehend
molecular
mechanisms
resistance
develop
effective
strategies
counter
drug
resistance.
Numerous
studies
have
demonstrated
close
association
between
microRNAs
(miRNAs)
in
In
this
study,
we
aimed
identify
essential
exosomal
cellular
miRNA
related
CRC
cell
line
HCT-116.
The
expression
profile
cells
with
was
analyzed.
effectiveness
diagnostics
biomarker
potency
miRNAs
were
evaluated
by
receiver
operating
characteristic
(ROC)
analysis.
Target
identified,
enrichment
analysis
assessed
based
on
Gene
Ontology
(GO),
Reactome,
Human
Disease
(DO).
vitro
experiments,
HCT-116
(HCT116-OXA)
developed,
exosomes
isolated
characterized
from
HCT116-OXA
HCT116
cells.
selected
their
exosomes,
they
compared
using
quantitative
real-time
PCR.
This
study
revealed
that
combination
miR-4326,
miR-3615,
miR-7974,
miR-130b-3p,
miR-454-3p
exhibited
highest
area
under
curve
(AUC),
sensitivity,
specificity,
superior
diagnostic
predictive
performance.
displayed
reduced
early
late
apoptosis,
bypass
S
phase
arrest,
prolonged
doubling
time,
higher
IC50
parental
miR-454-3p,
miR-4326
decreased
as
sensitive
However,
significantly
miR-130b-3p
observed
low
miR-3615
or
could
predict
response
therapy.
indicates
potential
these
specific
serve
markers
for
Drug Resistance Updates,
Journal Year:
2023,
Volume and Issue:
68, P. 100960 - 100960
Published: March 28, 2023
Pancreatic
cancer
continues
to
be
one
of
the
world's
most
lethal
cancers.
Chemotherapy
resistance
in
patients
with
advanced
pancreatic
often
accompany
dismal
prognosis,
highlighting
need
investigate
mechanisms
drug
and
develop
therapies
overcome
chemoresistance.This
research
was
filed
Chinese
Clinical
Trial
Registry
(ChiCTR2200061320).
In
order
isolate
primary
normal
fibroblasts
(NFs)
cancer-associated
(CAFs)
samples
ductal
adenocarcinoma
(PDAC)
paracancerous
tissue
from
individuals
diagnosed
PDAC
were
obtained.
The
exosomes
obtained
using
ultracentrifugation,
their
characteristics
determined
by
Western
blotting,
nanoparticle
tracking
analysis,
transmission
electron
microscopy.
CAF-derived
miRNAs
analyzed
RT-qPCR
high-throughput
sequencing.
Gemcitabine
(GEM)
employed
promote
ferroptosis,
ferroptosis
levels
monitoring
lipid
reactive
oxygen
species
(ROS),
cell
survival,
intracellular
Fe2+
concentrations.
To
assess
vivo
tumor
response
GEM
therapy,
a
xenograft
mouse
model
utilized.Exosomes
derived
CAFs
did
not
exhibit
innate
resistance.
promoted
chemoresistance
cells
following
treatment
secreting
exosomes,
maintaining
signaling
communication
cells.
Mechanistically,
miR-3173-5p
CAF
sponged
ACSL4
inhibited
after
uptake
cells.This
work
demonstrates
novel
mode
acquired
identifies
miR-3173-5p/ACSL4
pathway
as
promising
target
for
GEM-resistant
cancer.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(3), P. 2976 - 2976
Published: Feb. 3, 2023
As
it
is
well
known,
messenger
RNA
has
many
regulatory
regions
along
its
sequence
length.
One
of
them
the
5'
untranslated
region
(5'UTR),
which
itself
contains
elements
such
as
upstream
ORFs
(uORFs),
internal
ribosome
entry
sites
(IRESs),
microRNA
binding
sites,
and
structural
components
involved
in
regulation
mRNA
stability,
pre-mRNA
splicing,
translation
initiation.
Activation
alternative,
more
transcription
start
site
leads
to
an
extension
5'UTR.
consequences
5'UTRs
may
be
head-to-head
gene
overlap.
This
review
describes
5'UTR
protein-coding
transcripts
functional
significance
genes
overlap
with
implications
for
transcription,
translation,
disease.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(8), P. 6266 - 6275
Published: Jan. 22, 2024
In
biomedical
testing,
artificial
intelligence
(AI)-enhanced
analysis
has
gradually
been
applied
to
the
diagnosis
of
certain
diseases.
This
research
employs
AI
algorithms
refine
precision
integrative
detection,
encompassing
both
visual
results
and
fluorescence
spectra
from
lateral
flow
assays
(LFAs),
which
signal
presence
cancer-linked
miRNAs.
Specifically,
color
shift
gold
nanoparticles
(GNPs)
is
paired
with
red
nitrogen
vacancy
centers
(NV-centers)
in
fluorescent
nanodiamonds
(FNDs)
integrated
into
LFA
strips.
While
GNPs
amplify
FNDs,
turn,
FNDs
enhance
intensity
GNPs.
reciprocal
intensification
can
be
synergistically
augmented
algorithms,
thereby
improving
detection
sensitivity
for
early
diagnosis.
Supported
by
platform
based
on
this
strategy,
fastest
a
limit
(LOD)
at
fM
level
R2
value
∼0.9916
miRNA
obtained
within
5
min.
Meanwhile,
labeling
capture
probes
miRNA-21
miRNA-96
(both
are
indicators
breast
cancer)
separate
T-lines,
simultaneous
them
achieved.
The
methods
employed
study
may
potentially
future
cancer.
Biochemistry and Biophysics Reports,
Journal Year:
2024,
Volume and Issue:
37, P. 101644 - 101644
Published: Jan. 17, 2024
Exosomes
are
a
type
of
extracellular
vesicle
that
contains
bioactive
molecules
can
be
secreted
by
most
cells.
Nevertheless,
the
content
these
cells
differs
depending
on
cell
from
which
they
originate.
The
exosome
plays
crucial
role
in
modulating
intercellular
communication
conveying
molecular
messages
to
neighboring
or
distant
Cancer-derived
exosomes
transfer
several
types
into
tumor
microenvironment,
including
high
levels
microRNA
(miRNA).
These
miRNAs
significantly
affect
proliferation,
angiogenesis,
apoptosis
resistance,
metastasis,
and
immune
evasion.
Increasing
evidence
indicates
exosomal
(exomiRs)
regulating
cancer
resistance
apoptosis.
In
cells,
exomiRs
orchestrate
channels
between
them
their
surrounding
gene
expression
controlling
signaling
pathways.
This
review
presents
an
outline
present-day
knowledge
mechanisms
target
drive
Also,
our
study
looks
at
regulatory
mediating
microenvironmental
specifically
stromal
evade
therapy-induced
Biology of the Cell,
Journal Year:
2025,
Volume and Issue:
117(1)
Published: Jan. 1, 2025
Ferroptosis
is
a
type
of
cell
death
that
multiple
mechanisms
and
pathways
contribute
to
the
positive
negative
regulation
it.
For
example,
increased
levels
reactive
oxygen
species
(ROS)
induce
ferroptosis.
ferroptosis
unlike
apoptosis,
it
not
dependent
on
caspases,
but
iron.
Exosomes
are
membrane-bound
vesicles
with
size
about
30
150
nm,
contain
various
cellular
components,
including
DNA,
RNA,
microRNAs
(miRNAs),
lipids,
proteins,
which
genetically
similar
their
cells
origin.
found
in
all
bodily
fluids,
blood,
saliva,
urine.
Cells
often
release
exosomes
after
fusion
membrane.
They
play
an
important
role
immune
cell-cell
communication.
miRNAs,
noncoding
RNAs
length
18
24
nucleotides,
involved
regulating
gene
expression
transcription.
Emerging
data
suggests
exosomal
miRNAs
implicated
pathophysiological
cells,
metastasis,
drug
resistance,
death.
In
addition,
functional
studies
have
indicated
can
key
modulation
by
Therefore,
this
review,
given
importance
ferroptosis,
we
decided
elucidate
relationship
between
diseases.
Frontiers in Immunology,
Journal Year:
2022,
Volume and Issue:
13
Published: Oct. 7, 2022
Cerebral
infarction/ischemia-reperfusion
injury
is
currently
the
disease
with
highest
mortality
and
disability
rate
of
cardiovascular
disease.
Current
studies
have
shown
that
nerve
cells
die
ischemia
several
hours
after
ischemic
stroke,
which
activates
innate
immune
response
in
brain,
promotes
production
neurotoxic
substances
such
as
inflammatory
cytokines,
chemokines,
reactive
oxygen
species
−
nitrogen
oxide,
mediates
destruction
blood-brain
barrier
occurrence
a
series
cascade
reactions.
Meanwhile,
expression
adhesion
molecules
cerebral
vascular
endothelial
increased,
polymorphonuclear
neutrophils,
lymphocytes
mononuclear
macrophages
passed
through
entered
brain
tissue.
These
recognize
antigens
exposed
by
central
nervous
system
activate
adaptive
responses,
further
mediate
secondary
neuronal
damage,
aggravating
neurological
deficits.
In
order
to
reduce
above-mentioned
body
induces
peripheral
immunosuppressive
responses
negative
feedback,
increases
incidence
post-stroke
infection.
This
process
accompanied
changes
status
tissue
local
systemic
systems.
A
growing
number
implicate
noncoding
RNAs
(ncRNAs)
novel
epigenetic
regulatory
elements
dysfunction
various
cell
subsets
neurovascular
unit
injury.
particular,
recent
revealed
advances
ncRNA
biology
greatly
expand
understanding
regulation
inflammation
Identification
aberrant
patterns
associated
biological
effects
ncRNAs
patients
their
potential
biomarkers
therapeutic
targets
for
Therefore,
this
review
systematically
presents
on
involvement
neuroimmune
cascades,
elucidates
functions
mechanisms
infarction/ischemia-reperfusion-related
ncRNAs,
providing
new
opportunities
discovery
targeted
therapy.
Furthermore,
introduces
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)-Display
possible
transformative
tool
studying
lncRNAs.
future,
expected
be
used
target
diagnosing
injury,
judging
its
prognosis
treatment,
thereby
significantly
improving
patients.