Investigative Ophthalmology & Visual Science,
Journal Year:
2024,
Volume and Issue:
65(12), P. 24 - 24
Published: Oct. 17, 2024
To
explore
the
application
and
potential
ferroptosis
mechanisms
of
sonodynamic
therapy
(SDT)
using
titanium
dioxide
nanoparticles
(TiO2-NPs)
as
sonosensitizers
for
prevention
posterior
capsule
opacification
(PCO).
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 27, 2024
Abstract
Reactive
oxygen
species
(ROS)‐mediated
emerging
treatments
exhibit
unique
advantages
in
cancer
therapy
recent
years.
While
the
efficacy
of
ROS‐involved
tumor
is
greatly
restricted
by
complex
microenvironment
(TME).
Herein,
a
dual‐metal
CaO
2
@CDs‐Fe
(CCF)
nanosphere,
with
TME
response
and
regulation
capabilities,
are
proposed
to
improve
ROS
lethal
power
multiple
cascade
synergistic
therapeutic
strategy
domino
effect.
In
weak
acidic
TME,
CCF
will
decompose,
accompanied
intracellular
Ca
2+
upregulated
abundant
H
O
produced
reverse
antitherapeutic
TME.
Then
exposed
CF
cores
can
act
as
both
Fenton
agent
sonosensitizer
generate
excessive
regulated
for
enhanced
CDT/SDT.
combination
calcium
overloading,
augmented
induced
oxidative
stress
cause
more
severe
mitochondrial
damage
cellular
apoptosis.
Furthermore,
also
reduce
GPX4
expression
enlarge
lipid
peroxidation,
causing
ferroptosis
apoptosis
parallel.
These
signals
finally
initiate
damage‐associated
molecular
patterns
activate
immune
realize
excellent
antitumor
This
outstanding
ROS/calcium
loading
effect
endows
anticancer
efficiently
eliminate
apoptosis/ferroptosis/ICD
vitro
vivo.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: July 16, 2024
Abstract
Despite
its
effectiveness
in
exterminating
tumor
cells,
ferroptosis
is
seriously
hampered
by
the
high
expression
of
antioxidant
glutathione
(GSH)
and
inadequacy
endogenous
H
2
O
tumors.
Herein,
metal‐phenolic
nanoformulations
(FNCP
NFs)
composed
sonosensitizer
Chlorin
e6
(Ce6),
phenolic
GSH
consumer
naphthazarin,
Fe
3+
,
followed
modification
PEG2000,
are
strategically
designed
fabricated
for
ultrasound‐boosted
cells
through
triple
regulatory
pathways.
The
carrier‐free
FNCP
NFs
can
rapidly
dissociate
under
microenvironment
response
with
assistance
ultrasound,
releasing
2+
Ce6,
naphthazarin.
Ce6
capable
producing
singlet
oxygen
(
1
)
hydroxyl
radicals
·
OH)
ultrasound‐activated
sonodynamic
therapy
Fenton
reaction‐mediated
chemodynamic
(CDT),
respectively,
which
not
only
induce
apoptotic
cell
death
but
also
lead
to
effective
accumulation
lipid
peroxidation
(LPO),
resulting
ferroptosis.
Meanwhile,
released
naphthazarin
self‐cycling
valence
alternations
/Fe
promote
significant
decrease
intracellular
contents,
further
inducing
inactivation
peroxidase
4
(GPX4)
up‐regulation
LPO
levels,
eventually
realizing
synergistically
enhanced
This
facile
feasible
design
versatile
offers
a
new
strategy
effectively
improving
efficiency
multimodal
cancer
therapies.
Bioactive Materials,
Journal Year:
2024,
Volume and Issue:
41, P. 385 - 399
Published: July 30, 2024
Infected
wounds
pose
a
significant
clinical
challenge
due
to
bacterial
resistance,
recurrent
infections,
and
impaired
healing.
Reactive
oxygen
species
(ROS)-based
strategies
have
shown
promise
in
eradicating
infections.
However,
the
excess
ROS
infection
site
after
treatments
may
cause
irreversible
damage
healthy
tissues.
To
address
this
issue,
we
developed
bovine
serum
albumin-iridium
oxide
nanoclusters
(BSA-IrO
Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: May 12, 2024
Abstract
Zinc
oxide
nanoparticles
(ZnO
NPs)
stand
as
among
the
most
significant
metal
in
trigger
formation
of
reactive
oxygen
species
(ROS)
and
induce
apoptosis.
Nevertheless,
utilization
ZnO
NPs
has
been
limited
by
shallowness
short-wavelength
light
constrained
production
ROS.
To
overcome
these
limitations,
a
strategy
involves
achieving
red
shift
towards
near-infrared
(NIR)
spectrum,
promoting
separation
restraining
recombination
electron-hole
(e
−
-h
+
)
pairs.
Herein,
hybrid
plasmonic
system
Au@ZnO
(AZ)
with
graphene
quantum
dots
(GQDs)
doping
(AZG)
nano
heterostructures
is
rationally
designed
for
optimal
NIR-driven
cancer
treatment.
Significantly,
multifold
increase
ROS
generation
can
be
achieved
through
following
creative
initiatives:
(i)
Au
nanorods
expands
photocatalytic
capabilities
AZG
into
NIR
domain,
offering
foundation
NIR-induced
clinical
utilization;
(ii)
elaborate
design
mesoporous
core-shell
AZ
structures
facilitates
redistribution
pairs;
(iii)
incorporation
GQDs
structure
could
efficiently
restrain
e
(iv)
Modification
hyaluronic
acid
(HA)
enhance
CD44
receptor
mediated
targeted
triple-negative
breast
(TNBC).
In
addition,
introduced
NRs
present
catalysts
enhancing
photothermal
therapy
(PTT),
effectively
inducing
apoptosis
tumor
cells.
The
resulting
HA-modified
(AZGH)
exhibits
efficient
hot
electron
injection
separation,
affording
unparalleled
convenience
enabling
PDT
treanment.
As
result,
our
well-designed
AZGH
photosensitizers
exhibit
excellent
efficacy.