Materials Today Bio,
Journal Year:
2024,
Volume and Issue:
29, P. 101345 - 101345
Published: Nov. 19, 2024
Natural
enzyme-based
catalytic
cascades
have
garnered
increasing
attention
in
cancer
therapy,
but
their
clinical
utility
is
greatly
limited
due
to
loss
of
function
during
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
Disulfidptosis
and
ferroptosis
are
recently
identified
programmed
cell
deaths
for
tumor
therapy,
both
of
which
highly
depend
on
the
intracellular
cystine/cysteine
transformation
cystine
transporter
solute
carrier
family
7
member
11/glutathione/glutathione
peroxidase
4
(SLC7A11/GSH/GPX4)
antioxidant
axis.
However,
disulfidptosis
usually
asynchronous
due
to
opposite
effect
transport
them.
Herein,
systematic
glucose
deprivation,
by
inhibiting
upstream
uptake
promoting
downstream
consumption,
is
proposed
synchronously
evoke
ferroptosis.
As
an
example,
Au
nanodots
Fe-apigenin
(Ap)
complexes
coloaded
FeOOH
nanoshuttles
(FeOOH@Fe-Ap@Au
NSs)
employed
regulate
SLC7A11/GSH/GPX4
axis
performing
disulfidptosis-
ferroptosis-mediated
therapy
synchronously.
In
this
scenario,
exhibit
oxidase-like
activity
when
consuming
massive
glucose.
Meanwhile,
Ap
can
inhibit
downregulating
1,
depriving
fundamentally.
The
systematical
deprivation
limits
supplement
NADPH
suppresses
axis,
thus
solving
contradiction
addition,
efficient
delivery
exogenous
iron
ions
FeOOH@Fe-Ap@Au
NSs
self-supplied
H2O2
through
nanodots-catalytic
oxidation
facilitate
Fenton
reaction
therewith
help
amplify
a
result
synchronous
occurrence
ferroptosis,
good
efficacy
in
ovarian
cancer
therapeutic
model.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
Complexity
of
tumor
and
its
microenvironment
as
obstacles
often
restrict
traditional
therapies.
Enzyme/nanozyme‐mediated
catalytic
therapy
has
been
emerged,
but
the
efficacy
single
is
still
moderate.
Inspired
by
concepts
synergetic
therapy,
an
enzyme‐nanozyme
cascade
catalysis
(ENCAT)‐enhanced
developed.
First,
metal–organic
framework
(MOF)
PCN222‐Mn
(PM)
glucose
oxidase
(GOx)
are
chosen
nanozyme
natural
enzyme,
respectively.
Then
two
assembled
together
to
form
complex
PCN222‐Mn@GOx
(PMG).
To
achieve
targeting
GOx
protection,
hyaluronic
acid
(HA)
modified
on
PMG
obtain
PCN222‐Mn@GOx/HA
(PMGH).
Both
cellular
animal
studies
demonstrate
a
catalysis‐enhanced
PMGH.
Specifically,
PDT
achieved
based
mediated
cascade‐catalyzed
O
2
generation;
enhanced
synergistic
demonstrated
combining
PM‐mediated
PDT,
GOx‐mediated
starvation
activated/promoted
immunotherapy
together.
Additionally,
designed
explored
in
bearing
mouse
model,
where
it
exhibits
powerful
anti‐tumor
effects
against
both
primary
metastatic
tumors.
This
strategy
potential
broaden
therapeutic
approaches.