Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
Abstract
Paclitaxel
(PTX)
is
a
first‐line
chemotherapeutic
drug
for
non‐small
cell
lung
cancer
(NSCLC)
but
it
can
induce
indoleamine
2,3‐dioxygenase
(IDO)
activation,
which
severely
lowers
down
its
immuno‐chemotherapeutic
effect.
To
address
this
issue,
smart
peptide
hydrogelator
Nap–Phe–Phe–Phe–Lys–Ser–Thr–Gly–Gly–Lys–Ala–Pro–Arg–OH
(
Nap‐T
),
co‐assembles
with
PTX
and
an
IDO
inhibitor
GDC0919
to
form
hydrogel
GP@Gel
Nap‐T,
rationally
designed.
Upon
specific
phosphorylation
by
pyruvate
kinase
M2
(PKM2),
overexpressed
biomarker
of
NSCLC,
gradually
converted
Nap–Phe–Phe–Phe–Lys–Ser–Thr(H
2
PO
3
)–Gly–Gly–Lys–Ala–Pro–Arg–OH
Nap‐Tp
leading
dehydrogelation
sustained
release
within
NSCLC
tissues.
The
released
exerts
chemotherapy
on
cells
as
well
immunogenic
death
induction,
while
promotes
the
effect
through
inhibition.
We
find
that
enhances
infiltration
tumor‐infiltrating
immune
reduces
number
immunosuppressive
in
either
tumor
tissues
or
tumor‐draining
lymph
nodes,
thus
enhancing
immuno‐chemotherapy
toward
NSCLC.
With
PKM2‐responsive
strategy,
platform
might
be
applied
treatment
clinic
near
future.
Macromolecular Bioscience,
Journal Year:
2024,
Volume and Issue:
24(12)
Published: Nov. 15, 2024
Cells
coordinate
their
activity
and
regulate
biological
processes
in
response
to
chemical
signals.
Mimicking
natural
processes,
control
over
the
formation
of
artificial
supramolecular
materials
is
high
interest
for
application
biology
medicine.
Supramolecular
material
that
can
form
signals
important
development
autonomously
responsive
materials.
Herein,
a
hydrogel
system
reported
enabling
situ
generation
hydrogelators
specific
signal.
Using
self-immolative
chemistry,
spatial
structured
free-standing
objects
via
providing
H
Materials Today Bio,
Journal Year:
2024,
Volume and Issue:
29, P. 101331 - 101331
Published: Nov. 7, 2024
Myocardial
infarction
(MI)
remains
the
leading
cause
of
death
related
to
cardiovascular
diseases
globally,
presenting
a
significant
clinical
challenge
due
specificity
lesion
site
and
limited
proliferative
capacity
cardiomyocytes
(CMs)
for
repairing
infarcted
myocardium.
Extensive
studies
reported
so
far
has
focused
on
utilization
hydrogel-based
cardiac
patches
MI
treatment,
highlighting
their
promising
mechanical
properties,
conductivity,
ability
remodel
microenvironment
post-repair.
However,
majority
developed
have
been
myocardial
tissue
surface
via
suturing
or
adhesive
administration.
Suturing
inevitably
leads
additional
damage
fragile
myocardium,
while
uneven
application
adhesives
may
result
in
patch
displacement
compromised
drug
release.
Based
these
critical
issues,
we
systematically
summarize
advantages
drawbacks
using
hydrogel
treatment
with
emphasis
elucidating
various
design
strategies.
Specifically,
first
describe
changes
pathological
following
MI.
Next,
discuss
biomimetic
types
patches,
functional
design,
corresponding
strategies
adaptation,
emphasizing
adhesion
mechanisms,
wet
strategies,
fabrication
techniques
patches.
Finally,
address
potential
challenges
prospects
hydrogels
as
therapy.
The
review
is
believed
provide
theoretical
guidance
development
new
therapeutic
effectively
treatment.
Journal of Materials Chemistry B,
Journal Year:
2024,
Volume and Issue:
12(38), P. 9713 - 9726
Published: Jan. 1, 2024
Nucleoside-derived
supramolecular
hydrogels
based
on
G4-structures
have
been
extensively
developed
in
the
biomedical
sector
and
recognized
for
superior
excellent
biocompatibility
biodegradability.
However,
limited
longevity
stability
present
a
significant
challenge.
Chemical
modifications
molecular
structure
shown
to
enhance
of
G4-structure-based
hydrogels,
but
precise
way
which
impacts
consequently
affects
properties
hydrogel
remains
be
elucidated.
This
issue
represents
notable
challenge
field,
restricts
their
further
applications
some
extent.
In
this
study,
single
crystals
Gd,
αGd
αGd*
were
cultivated
compared
with
G.
Notably,
before
crystal
structures
all
natural
nucleosides,
exception
had
determined.
The
investigation
into
self-assembly
four
guanosine
analogs
at
atomic
scale
revealed
that
formation
G-quartets
is
critical
ability
form
hydrogels.
sugar
ring
geometry
conformation
(an
intrinsic
factor)
disorder
strength
hydration
effect
(extrinsic
factors)
are
vital
maintaining
G4-structures.
rapid
cooling
changes
conformation,
organic
solvent
effect,
can
improve
instead
chemical
modifications.
Consequently,
lifespan
was
extended
from
2
h
over
one
week.
advancement
expected
offer
insights
future
research
designing
developing
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
Abstract
Paclitaxel
(PTX)
is
a
first‐line
chemotherapeutic
drug
for
non‐small
cell
lung
cancer
(NSCLC)
but
it
can
induce
indoleamine
2,3‐dioxygenase
(IDO)
activation,
which
severely
lowers
down
its
immuno‐chemotherapeutic
effect.
To
address
this
issue,
smart
peptide
hydrogelator
Nap–Phe–Phe–Phe–Lys–Ser–Thr–Gly–Gly–Lys–Ala–Pro–Arg–OH
(
Nap‐T
),
co‐assembles
with
PTX
and
an
IDO
inhibitor
GDC0919
to
form
hydrogel
GP@Gel
Nap‐T,
rationally
designed.
Upon
specific
phosphorylation
by
pyruvate
kinase
M2
(PKM2),
overexpressed
biomarker
of
NSCLC,
gradually
converted
Nap–Phe–Phe–Phe–Lys–Ser–Thr(H
2
PO
3
)–Gly–Gly–Lys–Ala–Pro–Arg–OH
Nap‐Tp
leading
dehydrogelation
sustained
release
within
NSCLC
tissues.
The
released
exerts
chemotherapy
on
cells
as
well
immunogenic
death
induction,
while
promotes
the
effect
through
inhibition.
We
find
that
enhances
infiltration
tumor‐infiltrating
immune
reduces
number
immunosuppressive
in
either
tumor
tissues
or
tumor‐draining
lymph
nodes,
thus
enhancing
immuno‐chemotherapy
toward
NSCLC.
With
PKM2‐responsive
strategy,
platform
might
be
applied
treatment
clinic
near
future.