A Novel Digital PCR Assay for Accurate Detection and Differentiation of Focal and Non-Focal Subtypes of Mesenchymal–Epithelial Transition (MET) Gene Amplification in Lung Cancer
Raymond C. M. Shek,
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Peggy S. N. Li,
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S. Leung
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et al.
Cancers,
Journal Year:
2025,
Volume and Issue:
17(5), P. 811 - 811
Published: Feb. 26, 2025
Mesenchymal-epithelial
transition
(MET)
gene
amplification
is
a
critical
biomarker
in
non-small
cell
lung
cancer
(NSCLC),
significantly
influencing
treatment
decisions
and
prognostic
evaluations.
However,
current
detection
methods
such
as
fluorescence
situ
hybridization
(FISH)
next-generation
sequencing
(NGS)
have
limitations
speed,
cost,
specificity,
particularly
when
distinguishing
between
focal
MET
polysomy.
This
study
introduces
novel
digital
PCR
(dPCR)
assay
designed
not
only
to
detect
but
also
differentiate
its
non-focal
subtypes.
The
was
evaluated
against
established
FISH
targeted
NGS
panels
using
55
NSCLC
samples
with
known
statuses
(26
positive
29
negative)
confirmed
by
NGS.
Results
dPCR
demonstrated
high
sensitivity
(96.0%)
specificity
(96.7%),
achieving
100%
concordance
differentiating
from
Additionally,
the
exhibited
excellent
precision,
accuracy,
linearity
(R2
=
1.00)
copy
number
quantification,
surpassing
diagnostic
performance.
Offering
robust,
cost-effective,
efficient
alternative
FISH,
reduces
turnaround
time
(3
h
versus
2
days)
provides
quantitative
objective
method
for
subtype
differentiation.
makes
it
suitable
clinical
laboratories
limited
molecular
expertise.
highlights
potential
of
complement
existing
techniques,
delivering
reliable
actionable
results
MET-targeted
therapy
selection
patients
thereby
advancing
precision
oncology.
Language: Английский
Decoding oncogenic secrets of regulator of chromosome condensation 1: A breakthrough mechanistic evidence from breast and lung cancer models
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(3), P. e0319748 - e0319748
Published: March 31, 2025
The
Regulator
of
Chromosome
Condensation
1
(RCC1),
a
master
regulator
cell
cycle
progression,
chromatin
structure,
and
nuclear
transport,
emerges
as
powerful
driver
cancer
progression.
Elevated
RCC1
expression
in
breast
lung
cancers
is
closely
tied
to
enhanced
tumor
survival,
proliferation,
metastasis,
positioning
it
promising
therapeutic
target.
This
study
unveils
RCC1’s
pivotal
role
biology
by
silencing
its
MDA-MB-231
(breast
cancer)
A549
(lung
lines
using
shRNA.
knockdown
dramatically
reduced
viability,
colony
formation,
motility,
while
inducing
apoptosis,
evidenced
increased
apoptotic
markers
anti-apoptotic
Bcl2
expression.
Gene
analysis
revealed
downregulation
DNA
repair
pathways,
highlighting
critical
sustaining
oncogenic
mechanisms.
These
findings
underscore
gatekeeper
capable
resisting
apoptosis
promoting
metastasis.
Targeting
offers
dual
advantage:
disrupting
growth
enhancing
creating
an
exciting
opportunity
for
precision
therapies.
By
illuminating
integration
into
survival
networks,
this
not
only
advances
our
understanding
but
also
lays
the
groundwork
innovative
treatments
aimed
at
halting
progression
Language: Английский
Genomic and Immune Landscape Comparison of MET Exon 14 Skipping and MET-Amplified Non-small Cell Lung Cancer
Rachel L. Minne,
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Natalie Y. Luo,
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Anne M. Traynor
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et al.
Clinical Lung Cancer,
Journal Year:
2024,
Volume and Issue:
25(6), P. 567 - 576.e1
Published: Sept. 1, 2024
Language: Английский
Prominent response to savolitinib monotherapy in high-grade fetal adenocarcinoma with MET amplification and concurrent brain metastasis: a case report
Translational Lung Cancer Research,
Journal Year:
2024,
Volume and Issue:
13(6), P. 1407 - 1413
Published: June 1, 2024
Background:
Mesenchymal-epithelial
transition
(MET)
represents
a
potential
therapeutic
target
in
various
cancers,
with
amplification
of
the
MET
gene
identified
subset
patients
pulmonary
adenocarcinomas.
However,
is
rarely
observed
high-grade
fetal
adenocarcinoma
(H-FLAC).
Case
Description:
Here
we
present
novel
case
patient
diagnosed
stage
IV
H-FLAC
harboring
amplifications
and
treated
savolitinib.
The
69-year-old
male
patient,
who
presented
primary
complaint
cough
white
sputum,
had
history
hypertension
for
over
10
years
45-year
smoking
history.
received
savolitinib
monotherapy
treatment
due
to
brain
metastases.
Despite
omission
radiotherapy
asymptomatic
metastases,
notable
response
therapy
was
observed,
partial
(PR)
achieved
after
4
weeks
reduction
tumor.
At
time
submission
this
report,
24
treatment,
maintained
PR.
still
undergoing
treatment.
This
highlights
clinical
benefits
targeted
against
H-FLAC.
Conclusions:
metastasis
rare.
Treatment
resulted
PR,
providing
preliminary
insights
efficacy
amplification.
Language: Английский
Antibody–Drug Conjugates for the Treatment of Non-Small Cell Lung Cancer with Central Nervous System Metastases
David J. H. Bian,
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Sara Frida Cohen,
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Anna-Maria Lazaratos
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et al.
Current Oncology,
Journal Year:
2024,
Volume and Issue:
31(10), P. 6314 - 6342
Published: Oct. 18, 2024
Antibody-drug
conjugates
(ADCs)
represent
an
emerging
class
of
targeted
anticancer
agents
that
have
demonstrated
impressive
efficacy
in
numerous
cancer
types.
In
non-small
cell
lung
(NSCLC),
ADCs
become
a
component
the
treatment
armamentarium
for
subset
patients
with
metastatic
disease.
Emerging
data
suggest
some
exhibit
activity
even
central
nervous
system
(CNS)
metastases,
disease
site
is
difficult
to
treat
and
associated
poor
prognosis.
Herein,
we
describe
summarize
existing
evidence
surrounding
NSCLC
focus
on
CNS
activity.
Language: Английский
Recent advances in the treatment of non-small cell lung cancer with MET inhibitors
Frontiers in Chemistry,
Journal Year:
2024,
Volume and Issue:
12
Published: Dec. 10, 2024
Recently,
research
into
the
oncogenic
driver
genes
associated
with
non-small
cell
lung
cancer
(NSCLC)
has
advanced
significantly,
leading
to
development
and
clinical
application
of
an
increasing
number
approved
therapeutic
agents.
Among
these,
small
molecule
inhibitors
that
target
mesenchymal-epithelial
transition
(MET)
have
demonstrated
successful
in
settings.
Currently,
three
categories
MET
inhibitors,
characterized
by
distinct
binding
patterns
kinase
region,
been
developed:
types
Ia/Ib,
II,
III.
This
review
thoroughly
examines
MET’s
structure
its
crucial
role
NSCLC
initiation
progression,
explores
discovery
strategies
for
discusses
advancements
understanding
resistance
mechanisms.
These
insights
are
anticipated
enhance
a
new
generation
high
efficiency,
selectivity,
low
toxicity,
thereby
offering
additional
alternatives
patients
diagnosed
NSCLC.
Language: Английский