Nature,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 27, 2024
Abstract
The
tumour
microenvironment
is
programmed
by
cancer
cells
and
substantially
influences
anti-tumour
immune
responses
1,2
.
Within
the
microenvironment,
CD8
+
T
undergo
full
effector
differentiation
acquire
cytotoxic
functions
in
specialized
niches
3–7
Although
interactions
with
type
1
conventional
dendritic
have
been
implicated
this
process
3–5,8–10
,
underlying
cellular
players
molecular
mechanisms
remain
incompletely
understood.
Here
we
show
that
inflammatory
monocytes
can
adopt
a
pivotal
role
intratumoral
cell
stimulation.
These
express
Cxcl9
Cxcl10
Il15
but
contrast
to
cells,
which
cross-present
antigens,
obtain
present
peptide–major
histocompatibility
complex
class
I
complexes
from
through
‘cross-dressing’.
Hyperactivation
of
MAPK
signalling
hampers
coordinately
blunting
production
interferon
(IFN-I)
cytokines
inducing
secretion
prostaglandin
E
2
(PGE
),
impairs
monocyte
state
Enhancing
IFN-I
cytokine
blocking
PGE
restores
re-sensitizes
tumours
cell-mediated
immunity.
Together,
our
work
uncovers
central
stimulation,
elucidates
how
oncogenic
disrupts
counter-regulation
IFN-I,
proposes
rational
combination
therapies
enhance
immunotherapies.
Signal Transduction and Targeted Therapy,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: June 18, 2024
Abstract
Tumorigenesis
is
a
multistep
process,
with
oncogenic
mutations
in
normal
cell
conferring
clonal
advantage
as
the
initial
event.
However,
despite
pervasive
somatic
and
expansion
tissues,
their
transformation
into
cancer
remains
rare
event,
indicating
presence
of
additional
driver
events
for
progression
to
an
irreversible,
highly
heterogeneous,
invasive
lesion.
Recently,
researchers
are
emphasizing
mechanisms
environmental
tumor
risk
factors
epigenetic
alterations
that
profoundly
influencing
early
malignant
evolution,
independently
inducing
mutations.
Additionally,
evolution
tumorigenesis
reflects
multifaceted
interplay
between
cell-intrinsic
identities
various
cell-extrinsic
exert
selective
pressures
either
restrain
uncontrolled
proliferation
or
allow
specific
clones
progress
tumors.
by
which
induce
both
intrinsic
cellular
competency
remodel
stress
facilitate
not
fully
understood.
In
this
review,
we
summarize
genetic,
epigenetic,
external
events,
effects
on
co-evolution
transformed
cells
ecosystem
during
initiation
evolution.
A
deeper
understanding
earliest
molecular
holds
promise
translational
applications,
predicting
individuals
at
high-risk
developing
strategies
intercept
transformation.
Journal of Hematology & Oncology,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: June 11, 2024
Abstract
Macrophages
infiltrating
tumour
tissues
or
residing
in
the
microenvironment
of
solid
tumours
are
known
as
tumour-associated
macrophages
(TAMs).
These
specialized
immune
cells
play
crucial
roles
growth,
angiogenesis,
regulation,
metastasis,
and
chemoresistance.
TAMs
encompass
various
subpopulations,
primarily
classified
into
M1
M2
subtypes
based
on
their
differentiation
activities.
macrophages,
characterized
by
a
pro-inflammatory
phenotype,
exert
anti-tumoural
effects,
while
with
an
anti-inflammatory
function
protumoural
regulators.
highly
versatile
respond
to
stimuli
from
other
constituents
within
(TME),
such
growth
factors,
cytokines,
chemokines,
enzymes.
induce
polarization
towards
one
phenotype
another,
leading
complex
interactions
TME
components
influencing
both
pro-tumour
anti-tumour
processes.
This
review
comprehensively
deeply
covers
literature
origin
well
intricate
interplay
between
TME,
dual
nature
promoting
pro-
Moreover,
delves
primary
pathways
implicated
macrophage
polarization,
examining
diverse
that
regulate
this
process.
role
shaping
functions
macrophages.
In
addition,
advantages
limitations
current
clinical
interventions
reviewed,
including
enhancing
TAM
phagocytosis,
inducing
exhaustion,
inhibiting
recruitment,
polarizing
M1-like
phenotype.
conclusion,
treatment
strategies
targeting
precision
medicine
show
promise,
overcoming
several
obstacles
is
still
necessary
achieve
accessible
efficient
immunotherapy.
Biomedicine & Pharmacotherapy,
Journal Year:
2024,
Volume and Issue:
177, P. 116930 - 116930
Published: June 14, 2024
The
tumor
microenvironment
(TME)
is
a
combination
of
cells
and
indigenous
host
stroma,
which
consists
tumor-infiltrating
immune
cells,
endothelial
fibroblasts,
pericytes,
non-cellular
elements.
Tumor-associated
macrophages
(TAMs)
represent
the
major
cell
type
are
generally
polarized
into
two
functionally
contradictory
subtypes,
namely
classical
activated
M1
alternatively
M2
macrophages.
Macrophage
polarization
refers
to
how
at
given
time
space.
interplay
between
TME
macrophage
can
influence
initiation
progression,
making
TAM
potential
target
for
cancer
therapy.
Here,
we
review
latest
investigations
on
factors
orchestrating
in
TME,
affects
perspectives
modulating
immunotherapy.
Molecular Cancer,
Journal Year:
2024,
Volume and Issue:
23(1)
Published: July 27, 2024
Abstract
Tumor-associated
macrophages
(TAMs)
are
pivotal
in
cancer
progression,
influencing
tumor
growth,
angiogenesis,
and
immune
evasion.
This
review
explores
the
spatial
temporal
heterogeneity
of
TAMs
within
microenvironment
(TME),
highlighting
their
diverse
subtypes,
origins,
functions.
Advanced
technologies
such
as
single-cell
sequencing
multi-omics
have
elucidated
intricate
interactions
between
other
TME
components,
revealing
mechanisms
behind
recruitment,
polarization,
distribution.
Key
findings
demonstrate
that
support
vascularization,
promote
epithelial-mesenchymal
transition
(EMT),
modulate
extracellular
matrix
(ECM)
remodeling,
etc.,
thereby
enhancing
invasiveness
metastasis.
Understanding
these
complex
dynamics
offers
new
therapeutic
targets
for
disrupting
TAM-mediated
pathways
overcoming
drug
resistance.
underscores
potential
targeting
to
develop
innovative
therapies,
emphasizing
need
further
research
into
characteristics
functional
roles
TME.
Cellular and Molecular Immunology,
Journal Year:
2024,
Volume and Issue:
21(12), P. 1376 - 1409
Published: Nov. 8, 2024
АBSTRACT:
With
increasing
incidence
and
geography,
cancer
is
one
of
the
leading
causes
death,
reduced
quality
life
disability
worldwide.
Principal
progress
in
development
new
anticancer
therapies,
improving
efficiency
immunotherapeutic
tools,
personification
conventional
therapies
needs
to
consider
cancer-specific
patient-specific
programming
innate
immunity.
Intratumoral
TAMs
their
precursors,
resident
macrophages
monocytes,
are
principal
regulators
tumor
progression
therapy
resistance.
Our
review
summarizes
accumulated
evidence
for
subpopulations
number
biomarkers,
indicating
predictive
value
clinical
parameters
carcinogenesis
resistance,
with
a
focus
on
solid
cancers
non-infectious
etiology.
We
present
state-of-the-art
knowledge
about
tumor-supporting
functions
at
all
stages
highlight
recently
identified
by
single-cell
spatial
analytical
methods,
that
discriminate
between
tumor-promoting
tumor-inhibiting
TAMs,
where
both
subtypes
express
combination
prototype
M1
M2
genes.
focuses
novel
mechanisms
involved
crosstalk
among
epigenetic,
signaling,
transcriptional
metabolic
pathways
TAMs.
Particular
attention
has
been
given
link
cell
metabolism
epigenetic
histone
lactylation,
which
can
be
responsible
unlimited
protumoral
Finally,
we
explain
how
interfere
currently
used
therapeutics
summarize
most
advanced
data
from
trials,
divide
into
four
categories:
inhibition
TAM
survival
differentiation,
monocyte/TAM
recruitment
tumors,
functional
reprogramming
genetic
enhancement
macrophages.
Cells,
Journal Year:
2024,
Volume and Issue:
13(10), P. 844 - 844
Published: May 16, 2024
Immune
cell
migration
is
required
for
the
development
of
an
effective
and
robust
immune
response.
This
elegant
process
regulated
by
both
cellular
environmental
factors,
with
variables
such
as
state,
anatomical
location,
disease
state
that
govern
differences
in
patterns.
In
all
cases,
a
major
factor
expression
surface
receptors
their
cognate
ligands.
Rapid
adaptation
to
conditions
partly
depends
on
intrinsic
factors
affect
cell’s
ability
adjust
new
environment.
this
review,
we
discuss
myeloid
lymphoid
cells
outline
key
determinants
migration,
including
molecules
adhesion,
modes
chemotaxis,
specific
chemokine
signaling.
Furthermore,
summarize
tumor-specific
elements
contribute
trafficking
cancer,
while
also
exploring
microenvironment
can
alter
these
dynamics
within
tumor
pro
antitumor
fashion.
Specifically,
highlight
importance
secretome
later
aspects.
review
considers
myriad
impact
trajectory
cancer.
We
aim
immunotherapeutic
targets
be
harnessed
achieve
controlled
tumors.