Cancers,
Journal Year:
2021,
Volume and Issue:
13(11), P. 2668 - 2668
Published: May 28, 2021
Background:
Circulating
tumor
cells
(CTC)
have
relevance
as
prognostic
markers
in
breast
cancer.
However,
the
functional
properties
of
CTCs
or
their
molecular
characterization
not
been
well-studied.
Experimental
models
indicate
that
only
a
few
can
survive
circulation
and
eventually
metastasize.
Thus,
it
is
essential
to
identify
these
surviving
capable
forming
such
metastases.
Methods:
We
isolated
viable
from
50
peripheral
blood
samples
obtained
35
patients
with
advanced
metastatic
cancer
using
RosetteSepTM
for
ex
vivo
culture.
The
were
seeded
monitored
on
plates
under
low
adherence
conditions
media
supplemented
growth
factors
Nanoemulsions.
Phenotypic
analysis
was
performed
by
immunofluorescence
gene
expression
RT-PCR
counting
Cellsearch®
system.
Results:
found
75%
CTC
cultures
lasted
more
than
23
days,
predicting
shorter
Progression-Free
Survival
patients,
independently
having
≥5
Cellsearch®.
also
observed
before
after
culture
showed
different
profile.
Conclusions:
cultivability
predictive
factor.
Furthermore,
subset
growing
show
stem
mesenchymal
features
may
represent
population
potential
vivo.
Cancer Discovery,
Journal Year:
2021,
Volume and Issue:
11(4), P. 858 - 873
Published: April 1, 2021
Over
the
past
10
years,
circulating
tumor
cells
(CTC)
and
DNA
(ctDNA)
have
received
enormous
attention
as
new
biomarkers
subjects
of
translational
research.
Although
both
are
already
used
in
numerous
clinical
trials,
their
utility
is
still
under
investigation
with
promising
first
results.
Clinical
applications
include
early
cancer
detection,
improved
staging,
detection
relapse,
real-time
monitoring
therapeutic
efficacy,
targets
resistance
mechanisms.
Here,
we
propose
a
conceptual
framework
CTC
ctDNA
assays
point
out
current
challenges
research,
which
might
structure
this
dynamic
field
SIGNIFICANCE:
The
analysis
blood
for
CTCs
or
cell-free
nucleic
acids
called
"liquid
biopsy"
has
opened
avenues
diagnostics,
including
tumors,
risk
assessment
well
relapse
evolution
context
therapies.
Signal Transduction and Targeted Therapy,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: Oct. 11, 2024
The
cascade
of
metastasis
in
tumor
cells,
exhibiting
organ-specific
tendencies,
may
occur
at
numerous
phases
the
disease
and
progress
under
intense
evolutionary
pressures.
Organ-specific
relies
on
formation
pre-metastatic
niche
(PMN),
with
diverse
cell
types
complex
interactions
contributing
to
this
concept,
adding
a
new
dimension
traditional
cascade.
Prior
metastatic
dissemination,
as
orchestrators
PMN
formation,
primary
tumor-derived
extracellular
vesicles
prepare
fertile
microenvironment
for
settlement
colonization
circulating
cells
distant
secondary
sites,
significantly
impacting
cancer
progression
outcomes.
Obviously,
solely
intervening
sites
passively
after
macrometastasis
is
often
insufficient.
Early
prediction
holistic,
macro-level
control
represent
future
directions
therapy.
This
review
emphasizes
dynamic
intricate
systematic
alterations
that
progresses,
illustrates
immunological
landscape
creation,
deepens
understanding
treatment
modalities
pertinent
metastasis,
thereby
identifying
some
prognostic
predictive
biomarkers
favorable
early
predict
occurrence
design
appropriate
combinations.
Molecular Aspects of Medicine,
Journal Year:
2024,
Volume and Issue:
96, P. 101258 - 101258
Published: Feb. 21, 2024
Over
the
past
decade,
novel
methods
for
enrichment
and
identification
of
cancer
cells
circulating
in
blood
have
been
established.
Blood-based
detection
other
tumor-associated
products
can
be
summarized
under
term
Liquid
Biopsy.
Circulating
tumor
(CTCs)
used
diagnosis,
risk
stratification
treatment
selection
as
well
monitoring
several
studies
over
years,
thus
representing
a
valuable
biomarker
patients.
A
plethora
to
enrich,
detect
analyze
CTCs
has
In
contrast
liquid
biopsy
analytes
(e.g.
ctDNA),
represent
viable
analyte
that
provides
unique
opportunity
understand
underlaying
biology
metastatic
cascade
on
molecular
level.
this
review,
we
provide
an
overview
current
enrichment,
detection,
functional
characterization
CTCs.
Nature Cancer,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Abstract
Circulating
tumor
cells
(CTCs)
drive
metastasis,
the
leading
cause
of
death
in
individuals
with
breast
cancer.
Due
to
their
low
abundance
circulation,
robust
CTC
expansion
protocols
are
urgently
needed
effectively
study
disease
progression
and
therapy
responses.
Here
we
present
establishment
long-term
CTC-derived
organoids
from
female
metastatic
Multiomics
analysis
along
preclinical
modeling
xenografts
identified
neuregulin
1
(NRG1)–ERBB2
receptor
tyrosine
kinase
3
(
ERBB3
/HER3)
signaling
as
a
key
pathway
required
for
survival,
growth
dissemination.
Genome-wide
CRISPR
activation
screens
revealed
that
fibroblast
factor
(FGFR1)
serves
compensatory
function
NRG1–HER3
axis
rescues
NRG1
deficiency
CTCs.
Conversely,
induced
resistance
FGFR1
inhibition,
whereas
combinatorial
blockade
impaired
growth.
The
dynamic
interplay
between
reveals
molecular
basis
cancer
cell
plasticity
clinically
relevant
strategies
target
it.
Our
organoid
platform
enables
identification
validation
patient-specific
vulnerabilities
represents
an
innovative
tool
precision
medicine.
Cells,
Journal Year:
2020,
Volume and Issue:
9(8), P. 1836 - 1836
Published: Aug. 5, 2020
In
the
last
few
decades,
epithelial
cell
adhesion
molecule
(EpCAM)
has
received
increased
attention
as
main
membrane
marker
used
in
many
enrichment
technologies
to
isolate
circulating
tumor
cells
(CTCs).
Although
there
been
a
great
deal
of
progress
implementation
EpCAM-based
CTC
detection
medical
settings,
several
issues
continue
limit
their
clinical
utility.
The
biology
EpCAM
and
its
role
are
not
completely
understood
but
evidence
suggests
that
expression
this
cell-surface
protein
is
crucial
for
metastasis-competent
CTCs
may
be
lost
during
epithelial-to-mesenchymal
transition.
review,
we
summarize
most
significant
advantages
disadvantages
using
potential
biological
metastatic
cascade.
Clinical Chemistry and Laboratory Medicine (CCLM),
Journal Year:
2021,
Volume and Issue:
59(7), P. 1181 - 1200
Published: Feb. 5, 2021
Despite
advances
in
screening
and
therapeutics
cancer
continues
to
be
one
of
the
major
causes
morbidity
mortality
worldwide.
The
molecular
profile
tumor
is
routinely
assessed
by
surgical
or
bioptic
samples,
however,
genotyping
tissue
has
inherent
limitations:
it
represents
a
single
snapshot
time
subjected
spatial
selection
bias
owing
heterogeneity.
Liquid
biopsy
emerged
as
novel,
non-invasive
opportunity
detecting
monitoring
several
body
fluids
instead
tissue.
Circulating
cells
(CTCs),
circulating
DNA
(ctDNA),
RNA
(mRNA
microRNA),
microvesicles,
including
exosomes
"educated
platelets"
were
recently
identified
source
genomic
information
patients
which
could
reflect
all
subclones
present
primary
metastatic
lesions
allowing
sequential
disease
evolution.
In
this
review,
we
summarize
currently
available
concerning
liquid
breast
cancer,
colon
lung
melanoma.
These
promising
issues
still
need
standardized
harmonized
across
laboratories,
before
fully
adopting
approaches
into
clinical
practice.
Clinical & Experimental Metastasis,
Journal Year:
2021,
Volume and Issue:
39(1), P. 159 - 179
Published: Nov. 12, 2021
Cancer
metastasis
is
the
process
by
which
primary
cancer
cells
invade
through
lymphatic
or
blood
vessels
to
distant
sites.
The
molecular
mechanisms
spread
either
versus
both
are
not
well
established.
Two
major
developments
have
helped
us
understand
more
clearly.
First,
development
of
sentinel
lymph
node
(SLN)
concept
established
in
melanoma
and
breast
cancer.
SLN
first
draining
nodal
basin
receive
cells.
Patients
with
a
negative
biopsy
show
significantly
lower
incidence
metastasis,
suggesting
that
may
be
gateway
for
these
types.
Second,
discovery
characterization
several
biomarkers
including
VEGF-C,
LYVE-1,
Podoplanin
Prox-1
opened
new
vistas
understanding
induction
lymphangiogenesis
must
complete
multiple
steps
system,
some
enabled
evolution
traits
during
progression.
Thus,
initially
main
SLN,
from
evolving
clones
can
also
enter
directly,
bypassing
establish
metastases.
Future
studies
need
pinpoint
molecules
used
at
different
stages
via
routes
so
specific
therapies
targeted
against
molecules,
goal
stopping
preventing
metastasis.