Current Issues in Molecular Biology,
Journal Year:
2024,
Volume and Issue:
46(12), P. 13696 - 13712
Published: Dec. 2, 2024
Oncogene-induced
senescence
(OIS)
is
a
form
of
cellular
triggered
by
oncogenic
signaling
and,
potentially,
infection
with
viruses.
The
role
senescence,
along
its
associated
secretory
phenotype,
in
the
development
cervical
cancer
remains
unclear.
Additionally,
expression
senescence-associated
phenotype
(SASP)
has
not
yet
been
explored
premalignant
lesions
infected
Human
Papilloma
Virus
(HPV).
This
study
aimed
to
investigate
OIS
and
SASP
markers
HPV-infected
precancerous
lesions.
We
used
set
patient-derived
(n
=
32)
noncancerous
(chronic
cervicitis;
n
10)
tissue
samples
gene
several
(LMNB1,
CDKN2A,
CDKN2B,
CDKN1A),
(IL1A,
CCL2,
TGFB1,
CXCL8,
MMP9)
biomarkers
using
qRT-PCR.
status
was
confirmed
based
on
Lamin
B1
downregulation
immunohistochemical
staining.
HPV
for
all
tested.
Most
showed
high
expression,
however,
exhibited
significant
(p
<
0.001).
Fifty-five
percent
were
positive
infection,
HPV-16
as
dominant
genotype.
coincided
E6
expression.
CDKN2A
CDKN2B
higher
compared
tissue,
while
LMNB1
downregulated.
profile
included
elevated
CXCL8
TGFB1
reduced
IL1A,
MMP9.
this
work
shall
provide
an
opportunity
further
examine
process
malignant
transformation.
Immunology and Cell Biology,
Journal Year:
2024,
Volume and Issue:
102(4), P. 240 - 255
Published: Jan. 24, 2024
Abstract
Therapy‐induced
senescence
(TIS)
is
a
primary
response
to
chemotherapy,
contributing
untoward
treatment
outcomes
such
as
evasion
of
immunosurveillance.
Despite
the
established
role
complement
system
in
immune
cancer,
mediating
against
senescent
tumor
cells
remains
poorly
understood.
To
explore
this
relationship,
we
exposed
lung
adenocarcinoma
(A549),
breast
(MCF7)
and
pancreatic
carcinoma
(Panc‐1)
cell
lines
sublethal
doses
either
etoposide
or
doxorubicin
trigger
TIS.
Identification
TIS
was
based
on
morphological
changes,
upregulation
senescence‐associated
β‐galactosidase,
p21
Cip1
induction
lamin
B1
downregulation.
Using
immunofluorescence
microscopy,
quantitative
PCR,
ELISA
conditioned
media
silico
analysis,
investigated
activation,
protein
expression,
C3
levels
secreted
proteins
part
secretory
phenotype
(SASP),
respectively.
In
undergoing
TIS,
complement‐related
changes
included
(i)
activation
terminal
pathway,
evidenced
by
deposition
C5b‐9
cells;
(ii)
an
increase
expression
CD59
factor
H
(iii)
A549
cells,
elevation
with
its
secretion
into
medium.
addition,
increased
observed
cancer
samples
expressing
hallmarks
following
exposure
neoadjuvant
chemotherapy.
conclusion,
led
complement,
regulatory
expression.
Complement
appears
play
shaping
microenvironment
upon
induction.
Cell Death and Disease,
Journal Year:
2024,
Volume and Issue:
15(10)
Published: Oct. 19, 2024
Abstract
The
potential
use
of
pro-senescence
therapies,
known
as
TIS
(Therapy-Induced
Senescence),
for
the
treatment
colorectal
cancer
(CRC)
generated
significant
interest
since
they
require
lower
doses
compared
to
those
required
inducing
apoptosis.
However,
senescent
cell
cycle-arrested
cells
are
long-lived,
and
studies
have
revealed
escape
mechanisms
contributing
tumor
recurrence.
To
deepen
our
understanding
survival
pathways
used
by
cells,
we
delved
into
involvement
hexosamine
biosynthetic
pathway
(HBP).
HBP
provides
UDP-GlcNAc,
substrate
O
-GlcNAc
transferase
(OGT),
which
catalyzes
-GlcNAcylation,
a
post-translational
modification
implicated
in
regulating
numerous
cellular
functions
aberrantly
elevated
CRC.
In
this
study,
demonstrated,
p53-proficient
colon
lines
HCT116
LS174T,
that
induced
low-dose
SN38
or
etoposide
was
accompanied
with
decrease
GFAT
(the
rate
limiting
enzyme
HBP),
OGT
-GlcNAcase
(OGA)
expression
correlated
slight
reduction
-GlcNAcylation
levels.
Further
decreasing
level
knocking-down
redirected
response
subtoxic
chemotherapy
from
senescence
apoptosis,
correlation
an
enhancement
DNA
damages.
Pharmacological
inhibition
OSMI-4
LS174T
patient-derived
tumoroid
model
supported
these
findings.
Taken
together,
results
suggest
combing
inhibitors
low
conventional
chemotherapeutic
drugs
could
potentially
reduce
side
effects
while
preserving
efficacy.
Furthermore,
approach
may
increase
specificity,
CRC
exhibit
higher
levels
normal
tissues.
Discover Oncology,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 20, 2025
Lung
adenocarcinoma
is
one
of
the
major
contributors
to
cancer-related
mortality,
with
immunotherapy
emerging
as
a
key
treatment.
However,
many
patients
exhibit
resistance
immune
checkpoint
inhibitors.
Cellular
senescence
has
been
linked
tumor
progression
and
drug
resistance,
influencing
microenvironment.
This
study
applied
consensus
clustering
classify
lung
into
two
clusters
based
on
senescence-related
gene
expression,
revealing
differing
characteristics.
One
identified
exhibited
immunosuppressive
characteristics
showed
immunotherapy.
A
risk
score
was
developed
using
machine
learning
predict
response
prognosis.
High
correlated
poorer
survival
increased
across
multiple
cancer
types.
The
model
robust
predictive
ability
in
both
training
validation
cohorts.
These
findings
suggest
link
between
further
investigation
their
relationship
could
reveal
new
perspectives
for
International Journal of General Medicine,
Journal Year:
2025,
Volume and Issue:
Volume 18, P. 1957 - 1967
Published: April 1, 2025
Neoadjuvant
chemoradiotherapy
(nCRT)
is
one
of
the
standard
treatments
for
locally
advanced
rectal
cancer
(LARC).
However,
therapeutic
responses
to
this
form
treatment
greatly
vary
from
patient
another.
In
work,
we
focused
on
changes
serum
senescence-associated
secretory
phenotype
(SASP)
factors
and
immune
cell
infiltration
post-nCRT
in
a
search
possible
predictors
response
nCRT.
Twenty
patients
treated
with
nCRT
were
included
underwent
assessments
before
(pre-)
after
(post-)
treatment.
Inflammatory
cytokines
such
as
IL-1α,
IL-6,
IL-8;
chemokines
CCL5,
CXCL1,
CCL2
serum;
infiltrations
including
CD8+,
CD4+,
CD206+
macrophages
assessed
by
ELISA
IHC,
respectively.
Tumor
regressions
evaluated
MSK
three-tier
TRG
grading
system.
Significant
upregulation
IL-8,
CRP,
CXCL1
was
found,
together
increased
CD8+
T
tumor
regression
responders.
IL-1α
pre-nCRT
levels
promised
predictive
biomarkers,
given
that
higher
pretreatment
associated
lower
regression.
Increased
cytotoxic
improved
outcome,
whereas
CD4+
cells
M2
did
not
reach
statistical
significance.
CCL2,
cells,
identified
candidate
markers
might
monitor
effectiveness
patients.
These
findings
reinforce
insights
into
microenvironment
modulated
SASP
components
imply
need
larger
studies
validate
associations.
International Journal of Immunopathology and Pharmacology,
Journal Year:
2025,
Volume and Issue:
39
Published: Jan. 1, 2025
Objective:
The
effect
of
the
cGAS/STING
pathway
on
antitumor
immunity
and
its
connection
to
senescence
in
vivo
necessitates
further
investigation.
Introduction:
Cellular
secretory
phenotype
(the
SASP)
are
implicated
modulating
immune
microenvironment
cancer
possibly
through
pathway.
Methods:
Gene
expression
data
from
paired
colon
adjacent
non-malignant
mucosa
(98
patients,
n
=
196
samples;
65
130
samples)
were
analyzed
for
a
signature.
Immunohistochemistry
assessed
protein
124
colorectal
samples.
Results:
Approximately
one-quarter
patients
displayed
profiles
both
gene
sets,
yet
without
significantly
correlating
with
expression.
Notably,
cGAS
was
higher
than
STING
tumor
tissue
compared
colonic
mucosa.
Protein
analysis
showed
83%
positive
39%
expression,
discrepancies
patterns.
Additionally,
15%
samples
lacked
markers,
while
35%
exhibited
staining
both.
No
significant
correlations
found
between
status
stage,
patient
age,
lymphovascular
invasion,
or
lymph
node
involvement.
Conclusions:
Our
findings
demonstrate
marker
but
no
correlation
cGAS/STING.
Molecular Pharmacology,
Journal Year:
2024,
Volume and Issue:
105(5), P. 313 - 327
Published: March 8, 2024
Artificial
intelligence
(AI)
platforms,
such
as
Generative
Pretrained
Transformer
(ChatGPT),
have
achieved
a
high
degree
of
popularity
within
the
scientific
community
due
to
their
utility
in
providing
evidence-based
reviews
literature.
However,
accuracy
and
reliability
information
output
ability
provide
critical
analysis
literature,
especially
with
respect
highly
controversial
issues,
has
generally
not
been
evaluated.
In
this
work,
we
arranged
question/answer
session
ChatGPT
regarding
several
unresolved
questions
field
cancer
research
relating
therapy-induced
senescence
(TIS),
including
topics
reversibility,
its
connection
tumor
dormancy,
pharmacology
newly
emerging
drug
class
senolytics.
provided
responses
consistent
available
although
occasionally
overlooking
essential
components
current
understanding
role
TIS
biology
treatment.
Although
ChatGPT,
similar
AI
an
accurate
review
outputs
should
still
be
considered
carefully,
issues
biology.
SIGNIFICANCE
STATEMENT
Intelligence
platforms
great
for
researchers
investigate
biomedical
literature
prompt
manner.
arise
when
it
comes
certain
biological
questions,
field.
This
work
discussion
some
yet-to-be-fully-elucidated
conundrums
treatment
highlights
strengths
weaknesses
utilizing
analyzing
on
topic.