IntechOpen eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
Colorectal
cancer
(CRC)
is
a
prevalent
malignancy
with
high
incidence
and
mortality
rates
worldwide.
Metabolic
disorders,
such
as
obesity,
dyslipidemia,
hyperglycemia,
hypertension,
have
been
identified
significant
risk
factors
contributing
to
the
development
progression
of
CRC.
These
metabolic
conditions
often
result
in
low-grade
inflammation,
which
plays
crucial
role
tumor
initiation
progression.
Monocytes,
differentiate
into
tumor-associated
macrophages
(TAMs)
within
microenvironment
(TME),
are
pivotal
mediating
these
inflammatory
responses.
Monocytes
individuals
disorders
exhibit
altered
phenotypes
functions,
enhancing
their
pro-inflammatory
tumor-promoting
activities.
Our
review
describes
intricate
links
between
CRC
on
level
circulating
monocytes,
highlighting
how
can
drive
aggravate
via
programming
immunity.
Various
monocyte
subsets,
phenotypic
changes,
impact
elucidated,
providing
insights
potential
therapeutic
targets
for
prevention
treatment.
Understanding
interplay
alterations
monocytes-derived
TAMs
TME
essential
developing
effective
strategies
against
Cells,
Год журнала:
2023,
Номер
12(11), С. 1541 - 1541
Опубликована: Июнь 4, 2023
Alternative
therapies
such
as
photodynamic
therapy
(PDT)
that
combine
light,
oxygen
and
photosensitizers
(PSs)
have
been
proposed
for
glioblastoma
(GBM)
management
to
overcome
conventional
treatment
issues.
An
important
disadvantage
of
PDT
using
a
high
light
irradiance
(fluence
rate)
(cPDT)
is
the
abrupt
consumption
leads
resistance
treatment.
metronomic
regimens
(mPDT)
involving
administering
at
low
irradiation
intensity
over
relatively
long
period
time
could
be
an
alternative
circumvent
limitations
protocols.
The
main
objective
present
work
was
compare
effectiveness
with
advanced
PS
based
on
conjugated
polymer
nanoparticles
(CPN)
developed
by
our
group
in
two
modalities:
cPDT
mPDT.
vitro
evaluation
carried
out
cell
viability,
impact
macrophage
population
tumor
microenvironment
co-culture
conditions
modulation
HIF-1α
indirect
indicator
consumption.
mPDT
CPNs
resulted
more
effective
death,
lower
activation
molecular
pathways
therapeutic
polarization
towards
antitumoral
phenotype.
Additionally,
tested
GBM
heterotopic
mouse
model,
confirming
its
good
performance
promising
growth
inhibition
apoptotic
death
induction.
Cells,
Год журнала:
2024,
Номер
13(11), С. 942 - 942
Опубликована: Май 30, 2024
Glioblastoma
(GBM)
is
the
most
common
yet
uniformly
fatal
adult
brain
cancer.
Intra-tumoral
molecular
and
cellular
heterogeneities
are
major
contributory
factors
to
therapeutic
refractoriness
futility
in
GBM.
Molecular
heterogeneity
represented
through
subtype
clusters
whereby
proneural
(PN)
associated
with
significantly
increased
long-term
survival
compared
highly
resistant
mesenchymal
(MES)
subtype.
Furthermore,
it
universally
recognized
that
a
small
subset
of
GBM
cells
known
as
stem
(GSCs)
serve
reservoirs
for
tumor
recurrence
progression.
The
clonal
evolution
GSC
subtypes
response
therapy
drives
intra-tumoral
remains
critical
determinant
outcomes.
In
particular,
MES
reprogramming
GSCs
using
current
therapies
has
emerged
leading
hypothesis
refractoriness.
Preventing
divergent
toward
via
new
treatments
would
dramatically
improve
patients
have
significant
impact
on
this
review,
we
examine
challenges
role
malignant
glioblastoma
provide
future
perspectives
addressing
unmet
need
overcome
resistance
Gliomas
are
the
most
common
primary
malignant
tumours
of
central
nervous
system
(CNS),
which
highly
aggressive,
with
increasing
morbidity
and
mortality
rates
year
after
year,
posing
a
serious
threat
to
quality
expected
survival
time
patients.
The
treatment
gliomas
is
major
challenge
in
field
neuro-oncology,
especially
high-grade
such
as
glioblastomas
(GBMs).
Despite
considerable
progress
recent
years
study
molecular
cellular
mechanisms
GBMs,
their
prognosis
remains
bleak.
Tumour-associated
macrophages
(TAMs)
account
for
up
50%
they
heterogeneous
cell
population
whose
role
cannot
be
ignored.
Here,
we
focus
on
reviewing
contribution
classically
activated
M1-phenotype
TAMs
alternatively
M2-phenotype
exploring
research
reprogramming
M1
into
M2
TAMs.
CNS Neuroscience & Therapeutics,
Год журнала:
2025,
Номер
31(3)
Опубликована: Март 1, 2025
ABSTRACT
Background
Glioblastoma
(GBM)
is
one
of
the
most
aggressive
primary
brain
tumors
in
adults.
Over
95%
GBM
patients
experience
recurrence
peritumoral
tissue
or
distant
regions,
indicating
presence
critical
factors
these
areas
that
drive
tumor
recurrence.
Current
clinical
treatments
primarily
focus
on
cells
from
core
(TC),
while
role
neoplastic
beyond
TC
has
been
largely
neglected.
Methods
We
conducted
a
comprehensive
review
existing
literature
and
studies
GBM,
focusing
identification
characterization
questionable
(Q
cells).
Advanced
imaging
techniques,
such
as
diffusion
tensor
(DTI),
magnetic
resonance
spectroscopy
(MRS),
positron
emission
tomography
(PET),
were
utilized
to
identify
Q
core.
also
analyzed
functional
properties,
cellular
microenvironment,
physical
characteristics
cells,
well
their
implications
for
surgical
resection.
Results
Our
revealed
exhibit
unique
attributes,
including
enhanced
invasiveness,
metabolic
adaptations,
resistance
mechanisms.
These
reside
distinct
microenvironment
are
influenced
by
properties
solid
stress
stiffness.
techniques
have
improved
enabling
more
precise
Targeting
therapeutic
strategies
could
significantly
reduce
risk
Conclusion
The
zone
(PBZ)
factor
treatments,
which
target
TC,
insufficient
prevent
due
neglect
cells.
Future
research
should
understanding
mechanisms
influencing
developing
targeted
therapies
improve
patient
outcomes.
Exploration of Targeted Anti-tumor Therapy,
Год журнала:
2025,
Номер
6
Опубликована: Апрель 10, 2025
Immunotherapy
has
gathered
significant
attention
and
is
now
a
widely
used
cancer
treatment
that
uses
the
body's
immune
system
to
fight
cancer.
Despite
initial
successes,
its
broader
clinical
application
hindered
by
limitations
such
as
heterogeneity
in
patient
response
challenges
associated
with
tumor
microenvironment.
Recent
advancements
nanotechnology
have
offered
innovative
solutions
these
barriers,
providing
enhancements
immunotherapy.
Nanotechnology-based
approaches
exhibit
multifaceted
mechanisms,
including
effective
anti-tumor
responses
during
tumorigenesis
overcoming
suppression
mechanisms
improve
defense
capacity.
Nanomedicines,
nanoparticle-based
vaccines,
liposomes,
modulators,
gene
delivery
systems,
demonstrated
ability
activate
responses,
modulate
microenvironments,
target
specific
cells.
Success
metrics
preclinical
early
studies,
improved
survival
rates,
enhanced
regression,
elevated
activation
indices,
highlight
promise
of
technologies.
achievements,
several
remain,
scaling
up
manufacturing,
addressing
off-target
effects,
navigating
regulatory
complexities.
The
review
emphasizes
need
for
interdisciplinary
address
ensuring
adoption.
It
also
provides
insights
into
approaches,
advancements,
transformative
potential
nano-immunotherapy
promising
results
checkpoint
inhibitor
delivery,
nanoparticle-mediated
photothermal
therapy,
immunomodulation
well
inhibition
nanoparticles
vaccines.
Frontiers in Oncology,
Год журнала:
2025,
Номер
15
Опубликована: Апрель 15, 2025
Objective
Tumor-associated
macrophages
(TAMs)
constitute
a
significant
proportion
of
the
immune
cell
population
within
brain
tumors.
The
polarization
exerts
an
important
influence
on
tumor
microenvironment
(TME).
Nevertheless,
specific
role
TAMs
in
sonic
hedgehog
(SHH)
medulloblastoma
remains
unclear.
To
investigate
characteristics
and
effects
SHH
medulloblastoma,
we
evaluated
infiltration
M1
M2
tissues
analyzed
correlation
between
recruitment
clinical
outcome
patients.
Methods
We
enrolled
total
42
patients
diagnosed
with
medulloblastoma.
Using
multiple
immunofluorescence
staining
paraffin-embedded
sections,
detected
activated
phenotype
(M1/M2)
by
monoclonal
antibodies
for
CD68,
HLA-DR
CD163.
Subsequently,
as
well
prognostic
factors.
Results
median
age
(31
boys,
11
girls)
was
5.3
years
(range:
0.8-15.1
years).
All
had
confirmed
pathological
types,
including
4
cases
classic
(CMB),
33
desmoplastic/nodular
(DNMB),
3
extensive
nodularity
(MBEN),
2
large-cell/anaplastic
(LCA).
Thirteen
presented
metastasis
at
diagnosis,
while
twenty-nine
were
without
metastasis.
Four
high-risk
genetic
abnormalities.
Different
proportions
found
collected
tissues,
large
amounts
CD68
+
CD163
cells
found.
study
revealed
that
M
(total
macrophages)
mix
(CD68
cells)
significantly
higher
group
<5
old
(
P
<
0.05),
non-metastatic
than
metastatic
=
0.043).
CMB
DNMB/MBEN
0.036),
children
abnormalities
0.007).
Five-year
PFS
poorer
≥5
0.05).
High
better
5-year
0.000),
whereas
high
both
OS
0.001,
0.001).
Multivariate
analysis
showed
independent
factors
PFS,
factor
OS.
Conclusion
increase
predicts
especially
might
be
therapeutic
target
Frontiers in Oncology,
Год журнала:
2023,
Номер
13
Опубликована: Сен. 13, 2023
Angiogenic
growth
factors
(AGFs)
are
a
class
of
secreted
cytokines
related
to
angiogenesis
that
mainly
include
vascular
endothelial
(VEGFs),
stromal-derived
factor-1
(SDF-1),
platelet-derived
(PDGFs),
fibroblast
(FGFs),
transforming
factor-beta
(TGF-β)
and
angiopoietins
(ANGs).
Accumulating
evidence
indicates
the
role
AGFs
is
not
only
limited
tumor
but
also
participating
in
progression
by
other
mechanisms
go
beyond
their
angiogenic
role.
were
shown
be
upregulated
glioma
microenvironment
characterized
extensive
high
immunosuppression.
produced
stromal
cells
can
exert
an
immunomodulatory
interacting
with
immune
cells.
This
review
aims
sum
up
interactions
among
AGFs,
cancer
particular
emphasis
on
tries
provide
new
perspectives
for
understanding
in-depth
explorations
anti-glioma
therapy.
Frontiers in Cellular Neuroscience,
Год журнала:
2023,
Номер
17
Опубликована: Дек. 21, 2023
Glioblastoma
(GB)
is
a
highly
malignant
primary
brain
tumor
with
limited
treatment
options
and
poor
prognosis.
Despite
current
approaches,
including
surgical
resection,
radiation
therapy,
chemotherapy
temozolomide
(TMZ),
GB
remains
mostly
incurable
due
to
its
invasive
growth
pattern,
drug
penetration
beyond
the
blood-brain
barrier
(BBB),
resistance
conventional
therapies.
One
of
main
challenges
in
effectively
eliminating
infiltrating
cancer
cells
that
remain
parenchyma
after
resection.
We’ve
reviewed
most
recent
surveyed
potential
strategies
aimed
at
enhancing
local
outcomes.