Plant-nanoparticles enhance anti-PD-L1 efficacy by shaping human commensal microbiota metabolites
Yun Teng,
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Chao Luo,
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Xiaolan Qiu
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et al.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Feb. 3, 2025
Abstract
Diet
has
emerged
as
a
key
impact
factor
for
gut
microbiota
function.
However,
the
complexity
of
dietary
components
makes
it
difficult
to
predict
specific
outcomes.
Here
we
investigate
plant-derived
nanoparticles
(PNP)
on
and
metabolites
in
context
cancer
immunotherapy
with
humanized
gnotobiotic
mouse
model.
Specifically,
show
that
ginger-derived
exosome-like
nanoparticle
(GELN)
preferentially
taken
up
by
Lachnospiraceae
Lactobacillaceae
mediated
digalactosyldiacylglycerol
(DGDG)
glycine,
respectively.
We
further
demonstrate
GELN
aly-miR159a-3p
enhances
anti-PD-L1
therapy
melanoma
inhibiting
expression
recipient
bacterial
phospholipase
C
(PLC)
increases
accumulation
docosahexaenoic
acid
(DHA).
An
increased
level
circulating
DHA
inhibits
PD-L1
tumor
cells
binding
promoter
subsequently
prevents
c-myc-initiated
transcription
PD-L1.
Colonization
germ-free
male
mice
bacteria
from
non-responding
patients
supplemented
efficacy
compared
controls.
Our
findings
reveal
previously
unknown
mechanistic
PNP
human
modulating
metabolic
pathways.
Language: Английский
Gut microbiota in Alzheimer’s disease: Understanding molecular pathways and potential therapeutic perspectives
Simone Lista,
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Antonio Munafò,
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Filippo Caraci
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et al.
Ageing Research Reviews,
Journal Year:
2025,
Volume and Issue:
104, P. 102659 - 102659
Published: Jan. 10, 2025
Language: Английский
Emerging role of gut microbiota extracellular vesicle in neurodegenerative disorders and insights on their therapeutic management
Adil Hassan,
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Yin Huang,
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Mahjabina
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et al.
iMetaOmics.,
Journal Year:
2024,
Volume and Issue:
1(2)
Published: Oct. 25, 2024
Abstract
Targeting
gut
flora
to
lower
sickness
risk
is
a
growing
scientific
subject.
The
intricate
network
of
microorganisms
(gut
microbiota)
in
the
human
intestines
regulates
many
physiological
systems
and
may
be
important
for
general
health.
Recent
research
has
shown
dynamic
relationship
between
microbiota
central
nervous
system
(CNS).
Dysbiosis
key
establishing
progressing
diseases,
including
neurodegenerative
disorders.
Recently,
extracellular
vesicles
(GMEVs)
have
been
suggested
as
brain‐gut
communication
carriers.
Vesicle
components
contact
immune
receptors,
initiating
neuroinflammatory
responses
causing
diseases.
This
study
seeks
explain
how
its
cause
or
worsen
We
also
highlighted
recent
advances
our
understanding
these
GMEVs'
cargo's
routes,
which
could
used
drug
delivery
treatments.
examines
current
state
potential
therapeutic
effects
GMEVs
on
illnesses.
Language: Английский
Sulforaphane Wrapped in Self-Assembled Nanomicelle Enhances the Effect of Sonodynamic Therapy on Glioma
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
17(1), P. 34 - 34
Published: Dec. 30, 2024
Background/Objectives:
The
two
obstacles
for
treating
glioma
are
the
skull
and
blood
brain–barrier
(BBB),
first
of
which
forms
a
physical
shield
that
increases
difficulties
traditional
surgery
or
radiotherapy,
while
latter
prevents
antitumor
drugs
reaching
tumor
sites.
To
conquer
these
issues,
we
take
advantage
high
penetrating
ability
sonodynamic
therapy
(SDT),
combined
with
novel
nanocomplex
can
easily
pass
BBB.
Methods:
Through
ultrasonic
polymerization,
amphiphilic
peptides
(C18GR7RGDS)
were
self-assembled
as
spherical
shell
encapsulating
sonosensitizer
Rose
Bengal
(RB)
plant-derived
compound,
sulforaphane
(SFN),
to
form
SFN@RB@SPM.
Results/Conclusions:
SFN@RB@SPM
be
internalized
by
cells
through
tumor-targeting
motif
RGDS
(abbreviated
peptide
sequence
composed
arginine,
glycine,
aspartic
acid,
serine),
further
executes
function
during
SDT.
Also,
could
taken
up
U87-MG
cross
BBB
in
glioma-bearing
mice
mechanism
investigation
revealed
that,
compared
SFN-free
(RB@SPM),
induced
much
more
apoptosis
an
ROS-dependent
manner
depletion
glutathione
SFN
cavitation
effect
In
animal
experiments,
besides
significant
reduction
volume
delay
losing
body
weight,
H&E
staining
showed
massive
infiltration
neutrophils
adjacent
sites,
indicating
this
synergistically
augment
SDT
efficacy,
partially
enhancing
innate
immunity.
Language: Английский