High levels of soluble CD73 unveil resistance to BRAF inhibitors in melanoma cells
Caterina Giraulo,
No information about this author
Lavinia Orlando,
No information about this author
Elva Morretta
No information about this author
et al.
Biomedicine & Pharmacotherapy,
Journal Year:
2024,
Volume and Issue:
177, P. 117033 - 117033
Published: June 27, 2024
Melanoma
cells
express
high
levels
of
CD73
that
produce
extracellular
immunosuppressive
adenosine.
Changes
in
the
expression
occur
response
to
tumor
environmental
factors,
contributing
phenotype
plasticity
and
therapeutic
resistance.
Previously,
we
have
observed
can
be
up-regulated
on
surface
melanoma
nutritional
stress.
Here,
explore
mechanism
by
which
release
soluble
under
low
nutrient
availability
whether
this
might
affected
agents
targeting
proto-oncogene
B-Raf
(BRAF).
We
found
starved
CD73,
able
convert
AMP
into
adenosine,
activity
is
abrogated
selective
inhibitors,
APCP
or
PSB-12489.
The
from
mediated
matrix
metalloproteinase
MMP-9.
Indeed,
MMP-9
inhibitors
significantly
reduce
released
cells,
while
its
increase.
Of
relevance,
harboring
an
activating
BRAF
mutation,
upon
treatment
with
dabrafenib
vemurafenib,
show
a
strong
reduction
cell
reduced
space.
Conversely,
resistant
membrane-bound
culture
medium.
In
summary,
our
data
indicate
cells.
associated
inhibitors.
developing
resistance
increased
including
suggesting
involved
acquiring
treatment.
Language: Английский
Innovative Immunotherapy and Its Transformative Impact on Gastric Adenocarcinoma: A Comprehensive Review of the Disease’s Origins, Epidemiology, Classification, Diagnosis, and Treatment Options
ACS Pharmacology & Translational Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Language: Английский
GRHL2 suppression of NT5E/CD73 in breast cancer cells modulates CD73-mediated adenosine production and T cell recruitment
iScience,
Journal Year:
2024,
Volume and Issue:
27(5), P. 109738 - 109738
Published: April 12, 2024
Language: Английский
TGF-β Induces the Secretion of Extracellular Vesicles Enriched with CD39 and CD73 from Cervical Cancer Cells
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(6), P. 2413 - 2413
Published: March 7, 2025
The
presence
of
TGF-β
in
the
tumor
microenvironment
cervical
cancer
(CC)
is
important
for
progression.
In
this
study,
we
analyzed
effect
on
expression
ectonucleotidases
CD39
and
CD73,
which
are
involved
generation
adenosine
(Ado),
CC
cells
extracellular
vesicles
(EVs)
secreted
by
these
cells.
Treatment
HeLa
CaSki
72
h
with
recombinant
human
increased
CD73
20
30%
40
100%,
respectively.
addition
SB505124,
an
inhibitor
TGF-β1
receptor,
or
GW4869,
exosome
formation
release,
reduced
release
both
Furthermore,
promoted
secretion
medium-large
EVs
(>130
nm)
(HeLa
+
TGF-β/EVs)
(CaSki
TGF-β/EVs),
(>20%)
(>60%),
obtained
from
treated
had
a
greater
capacity
to
generate
Ado
than
did
cultured
absence
factor
(HeLa/EVs
CaSki/EVs).
These
findings
suggest
that
production
TME
can
promote
neoplastic
progression
through
enriched
CD73.
Therefore,
inhibition
CD39+
CD73+
could
be
strategy
treatment
CC.
Language: Английский
Traditional Chinese medicine and its components effectively reduce resistance mediated by immune checkpoint inhibitors
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Nov. 26, 2024
Immunotherapy
has
become
a
global
focus
in
cancer
treatment
and
research,
with
promising
results
from
targeting
immune
checkpoints
tumors
like
non-small
cell
lung
cancer,
colon
melanoma.
However,
resistance
to
checkpoint
inhibitors
(ICIs)
remains
significant
challenge.
Traditional
Chinese
medicine
(TCM),
known
for
its
low
toxicity
minimal
side
effects,
shows
promise
enhancing
when
combined
modern
therapies.
This
study
reviews
recent
research
on
ICIs
mechanisms
highlights
TCM's
potential
overcoming
this
resistance,
aiming
improve
efficacy
while
minimizing
toxicity.
Language: Английский
The Impact of A3AR Antagonism on the Differential Expression of Chemoresistance-Related Genes in Glioblastoma Stem-like Cells
Liuba Peñate,
No information about this author
Diego Carrillo-Beltrán,
No information about this author
Carlos Spichiger
No information about this author
et al.
Pharmaceuticals,
Journal Year:
2024,
Volume and Issue:
17(5), P. 579 - 579
Published: April 30, 2024
Glioblastoma
(GB)
is
the
most
aggressive
and
common
primary
malignant
tumor
of
brain
central
nervous
system.
Without
treatment,
average
patient
survival
time
about
six
months,
which
can
be
extended
to
fifteen
months
with
multimodal
therapies.
The
chemoresistance
observed
in
GB
is,
part,
attributed
presence
a
subpopulation
glioblastoma-like
stem
cells
(GSCs)
that
are
characterized
by
heightened
tumorigenic
capacity
chemoresistance.
GSCs
situated
hypoxic
niches,
where
they
sustain
promote
stem-like
phenotype
have
also
been
correlated
high
particularity
generating
levels
extracellular
adenosine
(ADO),
causes
activation
A3
receptor
(A3AR)
consequent
increase
expression
activity
genes
related
Therefore,
targeting
its
components
promising
alternative
for
treating
GB.
This
analysis
determined
were
up-
downregulated
due
A3AR
blockades
under
both
normoxic
conditions.
In
addition,
possible
candidates
associated
positively
regulated
hypoxia
negatively
same
condition
analyzed.
We
detected
three
potential
candidate
antagonist
MRS1220
conditions:
LIMD1,
TRIB2,
TGFB1.
Finally,
selected
markers
hypoxia-inducible
adenosine-producing
ectonucleotidases.
conclusion,
we
conditions
generate
extensive
differential
gene
GSCs,
increasing
Furthermore,
could
regulate
TGFB1,
involved
correlate
poor
prognosis,
hypoxia,
purinergic
signaling.
Language: Английский
Effects of abnormal expression of CD73 on malignant phenotype of nasopharyngeal carcinoma
Journal of Molecular Histology,
Journal Year:
2023,
Volume and Issue:
54(6), P. 633 - 644
Published: Oct. 24, 2023
Language: Английский
A targetable developmental program co-regulates angiogenesis and immune evasion
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
ABSTRACT
Ultraviolet
(UV)-induced
DNA
mutations
produce
genetic
drivers
of
cutaneous
melanoma
initiation
and
numerous
neoantigens
that
can
trigger
anti-tumor
immune
responses
in
the
host.
Consequently,
cells
must
rapidly
evolve
to
evade
detection
by
simultaneously
modulating
cell-autonomous
epigenetic
mechanisms
tumor-microenvironment
interactions.
Angiogenesis
has
been
implicated
this
process;
although
an
increase
vasculature
initiates
response
normal
tissue,
solid
tumors
manage
somehow
enhance
blood
flow
while
preventing
cell
infiltration.
By
comparing
expression
transcription
factors
(TFs)
across
early-stage
melanoma,
naevi,
other
cancer
types,
we
found
homeodomain-containing
TF
HOXD13
drives
a
melanoblast-like
developmental
program,
which
is
upregulated
strongly
correlated
with
angiogenesis
exclusion.
Using
transcriptomics,
3D
chromatin
profiling,
vivo
models,
demonstrate
upregulation
promotes
tumor
growth
concomitantly
enhancing
suppressing
T-cell
orchestrates
contacts
between
distal
enhancers
promoters,
activating
VEGFA,
SEMA3A,
CD73.
VEGFA
SEMA3A
remodel
CD73
elevates
extracellular
levels
adenosine,
vasodilator
suppressor
binds
adenosine
receptors
(AdR)
on
endothelial
T
cells.
In
line
these
findings,
HOXD13-induced
advantage
was
significantly
reversed
concomitant
administration
VEGFR
AdR
inhibitors.
revealing
dual
pro-angiogenic
immunosuppressive
HOXD13-CD73/VEGF
gene
regulatory
axis,
identify
subset
patients
who
might
benefit
from
combinations
inhibitors
are
both
currently
being
tested
clinical
trials.
Language: Английский