bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 16, 2024
Abstract
Immune
checkpoint
blockade
(ICB)
generates
sustained
responses
in
immunogenic
cancers,
but
its
effectiveness
is
limited
tumors
lacking
immune
activity.
Here,
we
construct
a
bioinspired
bimetallic
ions
functionalized
nanoscale
metal-organic
framework
(NMOF)
single-atom
nanozyme
(SAzyme)
loaded
with
doxorubicin
(Dox)
(NMOF-Fe/Cu-Dox
nanocomposite)
to
effectively
trigger
anti-tumor
while
addressing
the
immunosuppressive
tumor
microenvironment
(TME).
The
NMOF-Fe/Cu-Dox
nanocomposite
has
been
demonstrated
efficiently
reverse
TME
by
generating
reactive
oxygen
species
and
oxidizing
glutathione.
Camouflaging
nanocomposites
cancer
cell
membrane
(NMOF-Fe/Cu-Dox@M)
enables
navigation
region
through
homologous
targeting.
highly
efficient
uptaken
cells
selectively
induced
synergistic
ferroptosis
cuproptosis
these
cells.
Furthermore,
vitro
vivo
experiments
demonstrate
that
can
polarize
tumor-associated
macrophages
(TAMs)
towards
anti-tumoral
M1
phenotype
significantly
diminish
pro-tumoral
M2
phenotype.
We
find
NMOF-Fe/Cu-Dox@M
could
induce
of
macrophages,
no
effect
macrophages.
In
addition,
significant
increase
infiltrating
CD8
+
T
cells,
remarkable
decrease
CD4
regulatory
were
observed.
These
findings
suggested
modulate
TME,
enhance
tumoricidal
immunity
elevate
therapeutic
efficiency
ICB.
Moreover,
combination
αPD-1
eradicated
hepatocellular
carcinoma
,
outperforming
use
either
or
alone.
summary,
our
study
presents
strategy
leverages
coordinated
ICB,
underscoring
promise
combined
chemoimmunotherapy.
Journal of Materials Chemistry B,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
discusses
the
recent
developments
in
copper-based
nanomaterials
that
utilize
copper-induced
cell
death,
categorized
by
materials
systems,
while
highlighting
limitations
of
current
cuproptosis
related
nanomaterials.
Abstract
Hyaluronic
acid
(HA)
is
a
naturally
occurring
polysaccharide
found
in
the
extracellular
matrix
with
broad
applications
disease
treatment.
HA
possesses
good
biocompatibility,
biodegradability,
and
ability
to
interact
various
cell
surface
receptors.
Its
wide
range
of
molecular
weights
modifiable
chemical
groups
make
it
an
effective
drug
carrier
for
delivery.
Additionally,
overexpression
specific
receptors
on
surfaces
many
states
enhances
accumulation
drugs
at
pathological
sites
through
receptor
binding.
In
this
review,
modification
drugs,
major
proteins,
latest
advances
receptor‐targeted
nano
delivery
systems
(DDS)
treatment
tumors
inflammatory
diseases
are
summarized.
Furthermore,
functions
varying
vivo
selection
methods
different
discussed.
Advanced Therapeutics,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Copper
plays
a
pivotal
role
in
human
physiology,
particularly
oncology,
acting
both
as
facilitator
of
progression
and
also
potential
avenue
for
advanced
therapeutic
approaches.
Maintaining
copper
homeostasis
is
crucial.
The
dysregulation
implicated
tumor
growth
through
its
involvement
critical
processes
angiogenesis,
proliferation,
metastasis.
elevation
level
the
microenvironment
(TME)
activates
oncogenic
pathways
to
drive
neovascularization
sustained
malignancies.
However,
same
reliance
on
offers
unique
weakness
that
can
be
leveraged
innovative
interventions.
recent
advances
nanomedicine
enable
synthesis
nanostructures
help
modulate
with
precision
offering
multifaceted
approaches
copper‐based
cancer
therapy
controlled
release
mechanism,
optimized
structures
induce
cuproptosis,
selective
eradication
cells
minimum
systemic
toxicity.
This
review
explores
dual
biology,
emphasizing
contribution
tumors
emerging
application
targeted
therapy.
highlights
harnessing
therapies
their
transformative
from
bench
bed
side
novel,
highly
effective,
clinical
safety.
Cuproptosis,
a
distinct
cell
death
pathway,
has
been
integrated
into
nanomedicine
for
disease
theranostics.
However,
current
nanosystems
inducing
cuproptosis
rely
on
exogenous
toxic
copper
ions,
limiting
the
scope
of
biomaterials.
Developing
nanoplatforms
that
induce
without
holds
substantial
promise.
Here,
we
engineered
two-dimensional
iron
(Fe)
single-atom–doped
molybdenum
disulfide
(MoS
2
)
piezocatalyst
(Fe-MoS
tumor
therapy.
Incorporating
single
Fe
atoms
enhances
MoS
piezoelectric
polarization
via
charge
redistribution
and
modulates
Mo
oxidation
states,
enabling
multifaceted
enzymatic
activities,
including
peroxidase-,
glutathione
oxidase–,
oxidase-,
catalase-like
activities.
Upon
ultrasound
stimulation,
Fe-MoS
nanocatalyst
generates
reactive
oxygen
species
depletes
synergistic
piezocatalytic
enzyocatalytic
effects,
disrupting
ion
homeostasis
cuproptosis,
concurrently
triggering
ferroptosis
ferritinophagy,
which
collectively
suppression.
This
study
represents
first
paradigm
to
introduce
copper-free
initiating
substantially
advancing
applications
in
Micromachines,
Год журнала:
2024,
Номер
15(7), С. 932 - 932
Опубликована: Июль 22, 2024
Microfluidic
separators
play
a
pivotal
role
in
the
biomedical
and
chemical
industries
by
enabling
precise
fluid
manipulations.
Traditional
fabrication
of
these
devices
typically
requires
costly
cleanroom
facilities,
which
limits
their
broader
application.
This
study
introduces
novel
microfluidic
device
that
leverages
passive
Zweifach–Fung
principle
to
overcome
financial
barriers.
Through
Lagrangian
computational
simulations,
we
optimized
an
eleven-channel
configuration
achieved
perfect
100%
recall
rate
for
particles
following
specified
normal
distribution.
Experimental
evaluations
determined
2
mL/h
as
optimal
total
flow
(TFR),
under
showcased
exceptional
performance
enhancements
precision
micrometer-sized
particles,
achieving
overall
accuracy
94%
±
3%.
Fabricated
using
cost-effective,
non-cleanroom
method,
this
approach
represents
significant
shift
from
conventional
practices,
dramatically
reducing
production
costs
while
maintaining
high
operational
efficacy.
The
cost
each
chip
is
less
than
USD
0.90
cents
manufacturing
process
takes
only
15
min.
development
not
makes
technology
more
accessible
but
also
sets
new
standard
future
advancements
field.
ACS Nano,
Год журнала:
2024,
Номер
18(39), С. 26858 - 26871
Опубликована: Сен. 23, 2024
The
anti-PD-L1
and
its
bispecific
antibodies
have
exhibited
durable
antitumor
immunity
but
still
elicit
immunosuppression
mainly
caused
by
tumor-derived
exosomes
(TDEs),
leading
to
difficulty
in
clinical
transformation.
Herein,
engineered
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 14, 2024
Abstract
Hydrogen
(H
2
)
therapy
has
demonstrated
antitumor
effect,
but
the
therapeutic
efficacy
is
restricted
by
low
solubility
and
nontarget
delivery
of
H
.
Electrolysis
O
electrocatalysts
sustainably
releases
enormous
amounts
inspires
precise
for
tumor
therapy.
Herein,
manganese‐doped
Ni
S
3
nanoelectrodes
(MnNi
NEs)
are
designed
electrocatalytic
activation
immunity
to
effectively
potentiate
‐immunotherapy.
atoms
featuring
empty
3d
orbitals
reduce
initial
energy
barrier
hydrogen
evolution
reaction
(HER)
promoting
adsorption
O.
Moreover,
Mn
with
different
electronegativity
modulate
electronic
structure
facilitate
desorption
generated
,
thus
enhancing
HER
activity
MnNi
NEs.
Based
on
high
activity,
controllable
(EHT)
achieved
in
a
voltage‐dependent
manner.
Mechanistically,
NE‐mediated
EHT
induces
mitochondrial
dysfunction
oxidative
stress,
which
subsequently
activates
pyroptosis
through
typical
ROS/caspase‐1/GSDMD
signaling
pathway.
Furthermore,
enhances
infiltration
CD8
+
T
lymphocytes
into
tumors
reverses
immunosuppressive
microenvironment.
This
work
demonstrates
an
electrocatalyst
synergistic
gas‐immunotherapy,
may
spark
electrocatalyst‐based
strategies.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 5, 2024
Abstract
Chemical
reactions
underpin
biological
processes,
and
imbalances
in
critical
biochemical
pathways
within
organisms
can
lead
to
the
onset
of
severe
diseases.
Within
this
context,
emerging
field
“Nanocatalytic
Medicine”
leverages
nanomaterials
as
catalysts
modulate
fundamental
chemical
specific
microenvironments
This
approach
is
designed
facilitate
targeted
synthesis
localized
accumulation
therapeutic
agents,
thus
enhancing
treatment
efficacy
precision
while
simultaneously
reducing
systemic
side
effects.
The
effectiveness
these
nanocatalytic
strategies
critically
hinges
on
a
profound
understanding
kinetics
intricate
interplay
particular
pathological
ensure
effective
catalytic
actions.
review
methodically
explores
situ
their
associated
biomaterials,
emphasizing
regulatory
that
control
responses.
Furthermore,
discussion
encapsulates
crucial
elements‐reactants,
catalysts,
reaction
conditions/environments‐necessary
for
optimizing
thermodynamics
reactions,
rigorously
addressing
both
biophysical
dimensions
disease
enhance
outcomes.
It
seeks
clarify
mechanisms
underpinning
biomaterials
evaluate
potential
revolutionize
across
various
conditions.