The role of B2M in cancer immunotherapy resistance: function, resistance mechanism, and reversal strategies
Xiaowen Han,
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Jiayi Zhang,
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Weidong Li
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et al.
Frontiers in Immunology,
Journal Year:
2025,
Volume and Issue:
16
Published: March 21, 2025
Immunotherapy
has
emerged
as
a
preeminent
force
in
the
domain
of
cancer
therapeutics
and
achieved
remarkable
breakthroughs.
Nevertheless,
high
resistance
become
most
substantial
impediment
restricting
its
clinical
efficacy.
Beta-2
microglobulin
(B2M),
light
chain
major
histocompatibility
complex
(MHC)
class
I,
plays
an
indispensable
part
by
presenting
tumor
antigens
to
cytotoxic
T
lymphocytes
(CTLs)
for
exerting
anti-tumor
effects.
Accumulating
evidence
indicates
that
B2M
mutation/defect
is
one
key
mechanisms
underlying
immunotherapy
resistance.
Therefore,
elucidating
role
played
devising
effective
strategies
battle
against
are
pressing
issues.
This
review
will
systematically
expound
upon
them,
aiming
provide
insight
into
potential
promising
target
anticancer
immune
response.
Language: Английский
Citrate oscillations during cell cycle are a targetable vulnerability in cancer cells
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer,
Journal Year:
2025,
Volume and Issue:
unknown, P. 189313 - 189313
Published: April 1, 2025
Cell
cycle
progression
is
timely
interconnected
with
oscillations
in
cellular
metabolism.
Here,
we
first
describe
how
these
metabolic
allow
cycling
cells
to
meet
the
bioenergetic
needs
specifically
for
each
phase
of
cell
cycle.
In
parallel,
highlight
cytosolic
level
citrate
dynamically
regulated
during
different
phases,
being
low
G1
phase,
increasing
S
peaking
G2/M,
and
decreasing
mitosis.
Of
note,
cancer
cells,
a
dysregulation
such
oscillation
can
support
by
promoting
deregulated
Warburg
effect
(aerobic
glycolysis),
activating
oncogenic
signaling
pathways
(such
as
PI3K/AKT),
acetyl-CoA
production
via
alternative
routes,
overconsumption
acetate.
Then,
review
administration
sodium
(at
high
doses)
arrests
G0/G1
or
inhibits
glycolysis
PI3K/AKT,
induces
apoptosis,
significantly
reduces
tumor
growth
various
vivo
models.
Last,
reason
on
possibility
implement
reinforce
effectiveness
inhibitors
better
cure
cancer.
Language: Английский
The pathogenesis and therapeutic implications of metabolic reprogramming in renal cell carcinoma
Cell Death Discovery,
Journal Year:
2025,
Volume and Issue:
11(1)
Published: April 19, 2025
Abstract
Renal
cell
carcinoma
(RCC),
a
therapeutically
recalcitrant
genitourinary
malignancy,
exemplifies
the
profound
interplay
between
oncogenic
signaling
and
metabolic
adaptation.
Emerging
evidence
positions
reprogramming
as
central
axis
of
RCC
pathogenesis,
characterized
by
dynamic
shifts
in
nutrient
utilization
that
transcend
canonical
Warburg
physiology
to
encompass
lipid
anabolism,
glutamine
auxotrophy,
microenvironment-driven
plasticity.
This
orchestrated
rewiring
cellular
energetics
sustains
tumor
proliferation
under
hypoxia
while
fostering
immunosuppression
through
metabolite-mediated
T
exhaustion
myeloid-derived
suppressor
activation.
Crucially,
exhibits
heterogeneity
across
histological
subtypes
intratumoral
regions—a
feature
increasingly
recognized
determinant
therapeutic
resistance.
Our
review
systematically
deciphers
molecular
architecture
metabolism,
elucidating
how
VHL/HIF
mutations,
mTOR
pathway
dysregulation,
epigenetic
modifiers
converge
reshape
glucose
flux,
droplet
biogenesis,
amino
acid
catabolism.
We
present
novel
insights
into
spatial
zonation
within
tumors,
where
pseudohypoxic
niches
engage
lactate
shuttling
cholesterol
efflux
adjacent
vasculature,
creating
pro-angiogenic
immunosuppressive
microdomains.
Therapeutically,
we
evaluate
first-in-class
inhibitors
targeting
rate-limiting
enzymes
de
novo
lipogenesis
proposing
biomarker-driven
strategies
overcome
compensatory
highlight
synergy
glutaminase
PD-1
blockade
reinvigorating
CD8
+
function,
role
lipid-loaded
cancer-associated
fibroblasts
shielding
tumors
from
ferroptosis.
Finally,
outline
translational
roadmap
integrating
multi-omics
profiling,
functional
metabolomics,
biology
match
vulnerabilities
with
precision
therapies.
Language: Английский