Stroma-driven horizontal transfer of TCA proteins mediates metabolic plasticity and imatinib resistance in leukemia
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Abstract
Leukemia
cells
residing
in
the
bone
marrow
often
exhibit
resistance
to
tyrosine
kinase
inhibitors.
Metabolic
rearrangement
of
cancer
has
recently
gained
particular
attention
as
a
possible
cause
adaptation
and
insensitivity
drug
treatment.
We
demonstrated
here
that
stromal
directly
transferred
membrane
vesicles
together
with
proteins
related
tricarboxylic
acid
(TCA/Krebs)
cycle
leukemic
cells.
This
transfer
was
dependent
on
direct
cell-to-cell
contact
led
increased
metabolic
plasticity.
In
addition,
co-culture
activities
TCA
cycle,
oxidative
phosphorylation
capacity,
therefore
protected
from
loss
homeostasis
stress
response
imatinib.
As
result
stroma,
reductions
OXPHOS,
mitochondria-related
parameters
maximal
respiration
observed
imatinib-treated
cells,
were
substantially
less
present,
spare
respiratory
capacity
parameter
even
higher
compared
control
Metabolome
profiling
revealed
co-cultured
treated
imatinib
levels
TCA-related
metabolites
such
isocitric
acid,
L-malic
ketoglutaric
cis-aconitic
well
lower
level
stress.
The
rho0
analysis
horizontal
GFP-positive
mitochondria
excluded
their
status
important
for
stroma-driven
protection.
Altogether,
our
data
provide
insight
into
novel
mechanism
marrow-mediated
protection
associated
plasticity
driver
been
indicated
leukemia
stem
however
indicate
presence
may
support
all
conclusion,
we
postulate
elements
involved
can
be
targeted
achieve
therapeutic
effect
overcome
caused
by
microenvironment.
Язык: Английский
Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions
FEBS Open Bio,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
The
hallmarks
of
cancer
extend
beyond
genetic
anomalies
to
encompass
a
sophisticated
tumor
microenvironment,
involving
interactions
between
and
non-cancer
cells
within
dynamic
biophysical
setting,
influencing
progression.
microenvironment
is
multifaceted,
it
increasingly
clear
that
the
interaction
interdependence
these
different
facets
need
be
better
understood.
Tissue
engineering
3D
in
vitro
models
provides
an
opportunity
study
their
on
Cancer
metastasis
still
poses
major
challenge,
accounting
for
90%
cancer-related
deaths.
This
accentuates
critical
establish
patient-specific
model
systems
replicate
complexity
at
all
stages
Herein,
we
outline
latest
advancements
tools
utilized
analyze
such
models.
Henceforth,
multifaceted
can
elucidated
using
tools.
Язык: Английский
Identification of a Novel Mesenchymal Stem Cell–Related Signature for Predicting the Prognosis and Therapeutic Responses of Bladder Cancer
Stem Cells International,
Год журнала:
2024,
Номер
2024(1)
Опубликована: Янв. 1, 2024
Background:
Mesenchymal
stem
cells
(MSCs)
have
been
identified
to
a
unique
migratory
pattern
toward
tumor
sites
across
diverse
cancer
types,
playing
crucial
role
in
progression,
treatment
resistance,
and
immunosuppression.
This
study
aims
formulate
prognostic
model
focused
on
MSC‐associated
markers
efficiently
predict
the
clinical
outcomes
responses
therapy
individuals
with
bladder
(BC).
Methods:
Clinical
transcriptome
profiling
data
were
extracted
from
The
Cancer
Genome
Atlas
Urothelial
Bladder
Carcinoma
(TCGA‐BLCA)
GSE31684
databases.
Systematic
quantification
of
MSC
prevalences
stromal
indices
was
undertaken,
culminating
discernment
genes
correlated
MSCs
following
thorough
application
weighted
gene
coexpression
network
analysis
techniques.
Subsequently,
an
exhaustive
risk
signature
pertinent
formulated
by
amalgamating
methods
univariate
Least
Absolute
Shrinkage
Selection
Operator
(LASSO)
Cox
regression
models.
Drugs
targeting
associated
screened
using
molecular
docking.
Results:
for
incorporated
five
critical
genes:
ZNF165,
matrix
remodeling‐associated
7
(MXRA7),
CEMIP,
ADP‐ribosylation
factor‐like
4C
(ARL4C),
cerebral
endothelial
cell
adhesion
molecule
(CERCAM).
In
case
BC
patients,
stratification
performed
into
discrete
categories,
utilizing
median
score
as
criterion.
It
striking
that
those
classified
within
high‐MSC‐risk
bracket
demonstrated
correlations
unfavorable
implications.
Enhanced
responsiveness
immunotherapy
low‐MSC‐risk
patients
delineated
compared
their
counterparts.
A
heightened
receptivity
noted
particular
chemotherapy
drugs,
encompassing
gemcitabine,
vincristine,
paclitaxel,
gefitinib,
sorafenib,
this
high‐risk
group.
Conversely,
superior
reaction
cisplatin
distinctly
evident
among
marked
low
scores.
results
docking
kaempferol
exhibited
favorable
quercetin
MXRA7,
mairin
limonin
diosphenol
ARL4C.
Conclusions:
five‐gene
demonstrates
substantial
efficacy
prognosticating
gauging
regimens.
ARL4C,
CERCAM
are
underscored
promising
candidates
warranting
further
exploration
anti‐MSC
therapeutic
strategies,
thereby
offering
novel
insights
personalized
approaches
BC.
Язык: Английский