A Near-Infrared Fluorescent Probe with a Large Stokes Shift for Detecting Hydrogen Sulfide in Environmental Waters, Wine Samples, and Living Systems
Shuai Gong,
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Yue Gu,
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Jixiang Tian
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et al.
Journal of Agricultural and Food Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Hydrogen
sulfide
(H2S)
is
closely
related
to
physiological
diseases,
environmental
pollution,
food
safety,
and
plant
growth.
Herein,
a
new
nopinone-based
near-infrared
fluorescent
probe
has
been
developed
detect
H2S
with
superior
performance,
including
large
Stokes
shift,
low
detection
limit,
good
selectivity,
fast
response
time.
NPD-H2S
was
used
in
water
wine
samples
quantitatively.
In
addition,
could
be
fabricate
nanofiber
membranes
as
portable
tool
for
sensitively
detecting
vapor
using
smartphone.
Moreover,
effectively
image
HeLa
cells,
MCF-7
zebrafish.
More
importantly,
the
monitored
presence
of
upregulation
processes
Arabidopsis
thaliana
under
salt
stress
by
bioimaging.
This
work
provides
concept
intervention
external
stresses
cultivation.
Therefore,
can
monitor
fluctuation
environment
living
systems.
Language: Английский
NaHS@Cy5@MS@SP nanoparticles improve rheumatoid arthritis by inactivating the Hedgehog signaling pathway through sustained and targeted release of H2S into the synovium
Xuexue Zhu,
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An‐Jing Xu,
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Weiwei Cai
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et al.
Journal of Nanobiotechnology,
Journal Year:
2025,
Volume and Issue:
23(1)
Published: March 8, 2025
Aberrant
proliferation
and
inflammation
of
fibroblast-like
synoviocytes
(FLSs)
significantly
contribute
to
the
pathogenesis
rheumatoid
arthritis
(RA).
Deficiency
hydrogen
sulfide
(H2S)
is
a
driving
force
for
development
RA,
short
half-life
H2S-releasing
donor
sodium
hydrosulfide
(NaHS)
limits
its
clinical
application
in
RA
therapy.
Designing
targeted
delivery
system
with
slow-release
properties
FLSs
could
offer
novel
strategies
treating
RA.
Herein,
we
designed
strategy
achieve
slow
release
H2S
synovium,
which
was
accomplished
by
synthesizing
NaHS-CY5@mesoporous
silic@LNP
peptide
Dil
(NaHS@Cy5@MS@SP)
nanoparticles.
Our
results
demonstrated
that
NaHS@Cy5@MS@SP
effectively
targets
FLSs,
upregulates
its-producing
enzyme
cystathionine-γ-lyase
(CSE)
joints
arthritic
mice.
Overexpression
CSE
inhibited
proliferation,
migration,
upon
lipopolysaccharide
(LPS)
exposure,
effects
were
mimicked
NaHS@Cy5@MS@SP.
In
vivo
studies
showed
achieved
threefold
higher
AUCinf
than
free
NaHS,
improving
bioavailability
NaHS.
Further,
synovial
hyperplasia
reduced
bone
cartilage
erosion
DBA/1J
mouse
model
collagen-induced
(CIA),
superior
RNA
sequencing
molecular
validated
inactivated
Hedgehog
signaling
pathway
as
evidenced
reductions
protein
expression
SHH,
SMO,
GLI1
phosphorylated
p38/MAPK.
This
study
highlights
promising
controlled
synoviocytes,
offering
potential
management.
Language: Английский