Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Oct. 6, 2024
Inspired
by
the
concept
of
"natural
camouflage,"
biomimetic
drug
delivery
systems
have
emerged
to
address
limitations
traditional
synthetic
nanocarriers,
such
as
poor
targeting,
susceptibility
identification
and
clearance,
inadequate
biocompatibility,
low
permeability,
systemic
toxicity.
Biomimetic
nanocarriers
retain
proteins,
nucleic
acids,
other
components
parent
cells.
They
not
only
facilitate
but
also
serve
communication
media
inhibit
tumor
This
paper
delves
into
mechanisms
between
various
cell-derived
cells,
microenvironment,
well
their
applications
in
delivery.
In
addition,
additional
capabilities
conferred
on
modified
targeting
environmental
responsiveness,
are
outlined.
Finally,
we
propose
future
development
directions
for
hoping
inspire
researchers
design
efforts
ultimately
achieve
clinical
translation.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(11)
Published: March 13, 2024
Cancer
vaccines
show
huge
potential
for
cancer
prevention
and
treatment.
However,
their
efficacy
remains
limited
due
to
weak
immunogenicity
regarding
inefficient
stimulation
of
cytotoxic
T
lymphocyte
(CTL)
responses.
Inspired
by
the
unique
characteristic
biological
function
high-density
lipoprotein
(HDL),
we
here
develop
an
HDL-mimicking
nanovaccine
with
commendable
lymph-targeted
capacity
potently
elicit
antitumor
immunity
using
lipid
nanoparticle
that
is
co-loaded
specific
cytomembrane
harboring
a
collection
tumor-associated
antigens
immune
adjuvant.
The
nanoparticulate
impact
explored
on
efficiency
lymphatic
targeting
dendritic
cell
uptake.
optimized
promotes
co-delivery
adjuvants
lymph
nodes
maintains
antigen
presentation
cells,
resulting
in
long-term
surveillance
as
elevated
frequency
CTLs
within
lymphoid
organs
tumor
tissue.
Immunization
suppresses
formation
growth
augments
therapeutic
checkpoint
inhibitors
notably
high-stemness
melanoma
mouse
models.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(4), P. 2071 - 2071
Published: Feb. 8, 2024
Nanoencapsulation
has
become
a
recent
advancement
in
drug
delivery,
enhancing
stability,
bioavailability,
and
enabling
controlled,
targeted
substance
delivery
to
specific
cells
or
tissues.
However,
traditional
nanoparticle
faces
challenges
such
as
short
circulation
time
immune
recognition.
To
tackle
these
issues,
cell
membrane-coated
nanoparticles
have
been
suggested
practical
alternative.
The
production
process
involves
three
main
stages:
lysis
membrane
fragmentation,
isolation,
coating.
Cell
membranes
are
typically
fragmented
using
hypotonic
with
homogenization
sonication.
Subsequent
fragments
isolated
through
multiple
centrifugation
steps.
Coating
can
be
achieved
extrusion,
sonication,
combination
of
both
methods.
Notably,
this
analysis
reveals
the
absence
universally
applicable
method
for
coating,
stages
differ
significantly
their
procedures.
This
review
explores
current
developments
approaches
nanoparticles,
highlighting
potential
an
effective
alternative
various
therapeutic
applications.
Small,
Journal Year:
2024,
Volume and Issue:
20(42)
Published: June 20, 2024
Abstract
Surface‐enhanced
Raman
scattering
(SERS)
imaging
integrating
photothermal
and
photodynamic
therapy
(PTT/PDT)
is
a
promising
approach
for
achieving
accurate
diagnosis
effective
treatment
of
cancers.
However,
most
available
reporters
show
multiple
signals
in
the
fingerprint
region,
which
overlap
with
background
from
cellular
biomolecules.
Herein,
4T1
cell
membrane‐enveloped
gold
nanorods‐manganese
porphyrins
system
(GMCMs)
designed
successfully
fabricated
as
biomimetic
theranostic
nanoplatform.
Manganese
are
adsorbed
on
surface
Au
nanorods
via
terminal
alkynyl
group.
Cell
membrane
encapsulation
protects
manganese
falling
off
nanorods.
The
GMCMs
confirm
specific
homologous
targeting
to
cells
good
dispersibility,
excellent
photoacoustic
(PA)
properties,
preferable
1
O
2
generation
performance.
exhibit
distinct
SERS
silent
region
without
endogenous
biomolecule
interference
both
vitro
vivo.
ions
could
not
only
quench
fluorescence
enhance
effect
but
also
deplete
GSH
increase
yield.
Both
vivo
studies
demonstrate
that
effectively
eradicate
tumors
through
SERS/PA
imaging‐guided
PTT/PDT.
This
study
provides
feasible
strategy
augmenting
effects
group
GSH‐depletion
PTT/PDT
efficacy.
Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
67(5), P. 3321 - 3338
Published: Feb. 16, 2024
Immunotherapy
targeting
the
toll-like
receptor
7
(TLR7)
is
a
promising
strategy
for
cancer
treatment.
Herein,
we
describe
design
and
synthesis
of
series
imidazoquinoline-based
TLR7
agonists
assess
NF-κB
pathway
activation
using
HEK-Blue
hTLR7
cells
to
identify
most
potent
small-molecule
agonist,
SMU-L11
(EC50
=
0.024
±
0.002
μM).
In
vitro
experiments
demonstrated
that
specifically
activated
TLR7,
resulting
in
recruitment
MyD88
adaptor
protein
MAPK
signaling
pathways.
Moreover,
was
found
exert
immune-enhancing
effects
by
significantly
inducing
secretion
proinflammatory
cytokines
murine
dendritic
cells,
macrophages,
human
peripheral
blood
mononuclear
while
promoting
M1
macrophage
polarization.
vivo
studies
B16-F10
mouse
tumor
model
showed
enhanced
immune
cell
augmented
CD4+
T
CD8+
T-cell
proliferation,
directly
killing
inhibiting
growth.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
13(22)
Published: May 1, 2024
Abstract
The
immunosuppressive
tumor
microenvironment
(ITME)
of
osteosarcoma
(OS)
poses
a
significant
obstacle
to
the
efficacy
existing
immunotherapies.
Despite
attempt
novel
immune
strategies
such
as
checkpoint
inhibitors
and
vaccines,
their
effectiveness
remains
suboptimal
due
inherent
difficulty
in
mitigating
ITME
simultaneously
from
both
system.
promotion
anti‐tumor
immunity
through
induction
immunogenic
cell
death
activation
cGAS‐STING
pathway
has
emerged
potential
counter
stimulate
systemic
antitumor
responses.
Here,
bimetallic
polyphenol‐based
nanoplatform
(Mn/Fe‐Gallate
nanoparticles
coated
with
membranes
is
presented,
MFG@TCM)
which
combines
mild
photothermal
therapy
(PTT)
for
reversing
via
inducing
pyroptosis
OS
cells
activating
dendritic
(DCs).
immunostimulatory
pathways,
syngeneic
effect,
exerted
substantial
positive
impact
on
promoting
secretion
damage‐associated
molecular
patterns
(DAMPs)
proinflammatory
cytokines,
favors
remodeling
microenvironment.
Consequently,
effector
T
led
notable
response,
effectively
inhibiting
growth
primary
distant
tumors.
This
study
proposes
new
method
treating
using
PTT
mudulation,
showing
promise
overcoming
current
treatment
limitations.
Nanoencapsulation
has
emerged
as
a
recent
improvement
in
the
delivery
of
drugs,
offering
and
improving
stability
bioavailability,
allowing
for
controlled
targeted
substances
to
specific
cells
or
tissues.
However,
traditional
nanoparticle
faces
challenges
such
short
circulation
time
immune
recognition.
To
address
these
issues,
cell
membrane-coated
nanoparticles
have
been
proposed
promising
alternative.
The
production
involves
three
key
stages:
lysis
membrane
fragmentation,
isolation,
coating.
Typically,
membranes
are
fragmented
using
hypotonic
combination
with
homogenization
sonication.
Subsequent
fragments
isolated
through
multiple
centrifugation
steps.
coating
can
be
achieved
extrusion,
sonication,
both
methods.
This
analysis
shows
absence
universally
applicable
method
coating,
stages
exhibit
notable
differences
their
procedures.
Here
we
review
ongoing
developments
approaches
that
position
this
technology
alternative
effective
drug
many
other
therapeutic
applications.