Nature Medicine,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 3, 2025
Nearly
all
pancreatic
adenocarcinomas
(PDAC)
are
genomically
characterized
by
KRAS
exon
2
mutations.
Most
patients
with
PDAC
present
advanced
disease
and
treated
cytotoxic
therapy.
Genomic
biomarkers
prognostic
of
outcomes
have
been
challenging
to
identify.
Herein
leveraging
a
cohort
2,336
spanning
stages,
we
characterize
the
genomic
clinical
correlates
in
PDAC.
We
show
that
subtype
wild-type
tumors
is
associated
early
onset,
distinct
somatic
germline
features,
significantly
better
overall
survival.
Allelic
imbalances
at
locus
widespread.
mutant
allele
dosage
gains,
observed
one
five
(20%)
KRAS-mutated
diploid
tumors,
correlated
demonstrate
potential
across
stages.
With
rapidly
expanding
landscape
targeting,
our
findings
implications
for
practice
understanding
de
novo
acquired
resistance
RAS
therapeutics.
Analyses
data
from
adenocarcinoma
find
gains
hallmark
progression
predictive
poor
different
JAMA Network Open,
Journal Year:
2025,
Volume and Issue:
8(1), P. e2453588 - e2453588
Published: Jan. 7, 2025
Importance
Despite
the
high
prevalence
of
KRAS
alterations
in
pancreatic
ductal
adenocarcinoma
(PDAC),
clinical
impact
common
mutations
with
different
cytotoxic
regimens
is
unknown.
This
evidence
important
to
inform
current
treatment
and
provide
a
benchmark
for
emergent
targeted
therapies
metastatic
PDAC.
Objective
To
assess
implications
G12
PDAC
compare
outcomes
standard-of-care
multiagent
across
these
mutations.
Design,
Setting,
Participants
retrospective
cohort
study
obtained
deidentified
data
5382
patients
from
nationwide
(US-based)
clinicogenomic
database.
The
originated
approximately
280
US
cancer
clinics
(approximately
800
sites
care).
Patients
diagnosed
February
9,
2010,
September
20,
2022,
sufficient
follow-up
were
included.
Main
Outcomes
Measures
Median
overall
survival
(OS)
time
next
(TTNT)
calculated
each
mutation
group.
Hazard
ratios
(HRs)
generated
using
multivariate
Cox
proportional
hazards
models
mutation-treatment
combinations.
Results
A
total
2433
included
analysis
(mean
age
at
first
treatment,
67.0
[range,
66.0-68.0]
years;
1340
male
[55.1%]).
Among
2023
mutations,
those
G12R
had
longest
median
TTNT
(6.0
[95%
CI,
5.2-6.6]
months)
OS
(13.2
10.6-15.2]
months).
G12D
G12V
significantly
higher
risk
disease
progression
(HRs,
1.15;
1.04-1.29;
P
=
.009]
1.16
1.04-1.30;
.01],
respectively)
death
1.29
1.15-1.45;
<
.001]
1.23
1.09-1.39;
.001],
compared
wild
type.
FOLFIRINOX
regimen
(fluorouracil,
irinotecan,
oxaliplatin,
leucovorin)
lower
than
gemcitabine
1.19
[1.09-1.29;
1.18
1.07-1.29;
or
without
1.37
1.11-1.69;
.003]
1.41
CI
1.13-1.75;
.002],
nab-paclitaxel
all
patients.
Conclusions
Relevance
In
this
PDAC,
associated
worse
patient
was
more
favorable
outcomes,
better
gemcitabine-based
therapies.
These
findings
highlight
need
effective
systemic
groups
Journal of Clinical Medicine,
Journal Year:
2024,
Volume and Issue:
13(7), P. 2103 - 2103
Published: April 4, 2024
The
KRAS
proto-oncogene
is
a
major
driver
of
pancreatic
tumorigenesis
and
nearly
ubiquitously
mutated
in
ductal
adenocarcinoma
(PDAC).
point
mutations
are
detected
over
90%
PDAC
cases,
these
have
been
shown
to
be
associated
with
worse
therapy
response
overall
survival.
Pathogenic
mostly
limited
codons
12,
13
61,
G12D,
G12V,
G12R,
Q61H,
G13D
accounting
for
approximately
95%
the
mutant
cases.
Emerging
data
importance
specific
subtypes,
as
well
variant
allele
frequency
on
clinical
prognosis.
Furthermore,
novel
technologies
therapies
being
developed
target
encouraging
early
results.
In
this
paper,
we
aim
review
recent
studies
regarding
relative
impact
subtypes
oncologic
outcomes,
application
next
generation
sequencing
analyses,
ongoing
research
into
targeting
subtypes.
Signal Transduction and Targeted Therapy,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: Aug. 21, 2024
Abstract
RAS
and
MYC
rank
amongst
the
most
commonly
altered
oncogenes
in
cancer,
with
being
frequently
mutated
amplified.
The
cooperative
interplay
between
constitutes
a
complex
multifaceted
phenomenon,
profoundly
influencing
tumor
development.
Together
individually,
these
two
regulate
most,
if
not
all,
hallmarks
of
including
cell
death
escape,
replicative
immortality,
tumor-associated
angiogenesis,
invasion
metastasis,
metabolic
adaptation,
immune
evasion.
Due
to
their
frequent
alteration
role
tumorigenesis,
emerge
as
highly
appealing
targets
cancer
therapy.
However,
due
nature,
both
have
been
long
considered
“undruggable”
and,
until
recently,
no
drugs
directly
targeting
them
had
reached
clinic.
This
review
aims
shed
light
on
partnership,
special
attention
active
collaboration
fostering
an
immunosuppressive
milieu
driving
immunotherapeutic
resistance
cancer.
Within
this
review,
we
also
present
update
different
inhibitors
currently
undergoing
clinical
trials,
along
outcomes
combination
strategies
explored
overcome
drug
resistance.
recent
development
suggests
paradigm
shift
long-standing
belief
“undruggability”,
hinting
at
new
era
therapeutic
targeting.
Cancers,
Journal Year:
2025,
Volume and Issue:
17(4), P. 704 - 704
Published: Feb. 19, 2025
Background:
Pancreatic
ductal
adenocarcinoma
(PDAC)
is
an
aggressive
cancer,
able
to
thrive
in
a
challenging
tumor
microenvironment.
Current
standard
therapies,
including
surgery,
radiation,
chemotherapy,
and
chemoradiation,
have
shown
dismal
survival
prognosis,
resulting
less
than
year
of
life
the
metastatic
setting.
Methods:
The
pressing
need
find
better
therapeutic
methods
brought
about
discovery
new
targeted
therapies
against
infamous
KRAS
mutations,
major
oncological
drivers
PDAC.
Results:
most
common
mutation
KRASG12D,
which
causes
conformational
change
protein
that
constitutively
activates
downstream
signaling
pathways
driving
cancer
hallmarks.
Novel
anti-KRASG12D
been
developed
for
solid-organ
tumors,
small
compounds,
pan-RAS
inhibitors,
protease
chimeric
T
cell
receptors,
vaccines.
Conclusions:
This
comprehensive
review
summarizes
current
knowledge
on
biology
KRAS-driven
PDAC,
latest
options
experimentally
validated,
developments
ongoing
clinical
trials.
Pharmaceuticals,
Journal Year:
2024,
Volume and Issue:
17(5), P. 551 - 551
Published: April 25, 2024
Single-point
mutations
in
the
Kirsten
rat
sarcoma
(KRAS)
viral
proto-oncogene
are
most
common
cause
of
human
cancer.
In
humans,
oncogenic
KRAS
responsible
for
about
30%
lung,
pancreatic,
and
colon
cancers.
One
predominant
mutant
G12D
variants
is
pancreatic
cancer
an
attractive
drug
target.
At
time
writing,
no
Cells,
Journal Year:
2024,
Volume and Issue:
13(14), P. 1221 - 1221
Published: July 19, 2024
The
KRAS
mutation
stands
out
as
one
of
the
most
influential
oncogenic
mutations,
which
directly
regulates
hallmark
features
cancer
and
interacts
with
other
cancer-causing
driver
mutations.
However,
there
remains
a
lack
precise
information
on
their
cooccurrence
mutated
variants
any
correlations
between
To
enquire
about
this
issue,
we
delved
into
cBioPortal,
TCGA,
UALCAN,
Uniport
studies.
We
aimed
to
unravel
complexity
its
relationships
noticed
that
G12D
G12V
are
prevalent
coexist
TP53
in
PAAD
CRAD,
while
G12C
LUAD.
also
similar
observations
case
PIK3CA
APC
mutations
CRAD.
At
transcript
level,
positive
correlation
exists
existence
co-mutation
could
influence
signaling
pathway
neoplastic
transformation.
Moreover,
it
has
immense
prognostic
predictive
implications,
help
better
therapeutic
management
treat
cancer.