Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 4, 2025
Inflammation,
a
central
process
in
numerous
diseases,
plays
crucial
role
hepatic
disorders,
arthritis,
cardiac
conditions,
and
neurodegenerative
ailments.
Given
the
lack
of
effective
anti-inflammatory
drugs,
it
is
imperative
to
assess
inflammation
severity
explore
novel
therapeutics.
Selenocysteine
(Sec),
key
mediator
selenium's
biological
function,
closely
involved
responses.
We
have
synthesized
near-infrared
fluorescent
probe,
Sec-BDP,
which
can
image
Sec
dynamics
vivo
with
high
selectivity
sensitivity.
Sec-BDP
detects
at
concentrations
as
low
0.085
μM.
Utilizing
this
we
visualized
levels
cell,
zebrafish,
mouse
models,
enabling
clear
assessment
severity.
To
screen
for
drug
candidates,
was
integrated
ultrahigh
performance
liquid
chromatography
quadrupole
time-of-flight
mass
spectrometry
identify
potent
compounds
Astragalus
membranaceus,
such
5-O-methylvisammioside.
Imaging
provides
insights
into
Sec-related
diseases
aids
discovering
new
treatments.
This
probe
advances
selenium
biology
promises
more
targeted
therapeutic
strategies.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(12)
Published: Jan. 14, 2024
Abstract
Abnormal
levels
of
reactive
oxygen
species
(ROS)
and
the
hypoxic
microenvironment
within
bone
defects
are
important
factors
that
impede
repair
processes.
Herein,
an
innovative
ultrasound‐modulatable
hydrogel
platform
with
selenoprotein‐mediated
antioxidant
effects
to
promote
injury
is
presented.
This
encapsulates
oxygen‐enriched
selene‐incorporated
thin‐shell
silicon
methacrylate
gelatin
(O
2
‐PSSG).
The
resultant
construct
orchestrates
modulation
bone‐defect
microenvironment,
thereby
expediting
course
regeneration.
Ultrasound
(US)
used
regulate
pore
size
release
selenium‐containing
nanoparticles
in
situ
synthesis
efficient
intracellular
selenoproteins
hydrogen
peroxide
consumption.
As
expected,
O
‐PSSG
rapidly
releases
selenocystine
([Sec]
)
under
US
control
scavenge
maintain
homeostasis
marrow
mesenchymal
stem
cells
(BMSCs).
Over
time,
action
system
by
selenoprotein
increases
activation
Wnt/β‐catenin
pathways
promotes
differentiation
BMSCs.
Consequently,
potentiates
proficiency
BMSCs
both
vitro
vivo,
alleviates
environments,
osteogenic
differentiation,
expedites
cranial
rat
models.
In
summary,
this
study
suggests
designed
constructed
US‐responsive
a
promising
prospective
strategy
for
addressing
fostering
International Journal of Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
662, P. 124535 - 124535
Published: Aug. 1, 2024
The
advancements
in
nanotechnology,
pharmaceutical
sciences,
and
healthcare
are
propelling
the
field
of
theranostics,
which
combines
therapy
diagnostics,
to
new
heights;
emphasizing
emergence
selenium
nanoparticles
(SeNPs)
as
versatile
theranostic
agents.
This
comprehensive
update
offers
a
holistic
perspective
on
recent
developments
synthesis
applications
SeNPs,
underscoring
their
growing
importance
nanotechnology
healthcare.
SeNPs
have
shown
significant
potential
multiple
domains,
including
antioxidant,
anti-inflammatory,
anticancer,
antimicrobial,
antidiabetic,
wound
healing,
cytoprotective
therapies.
review
highlights
adaptability
biocompatibility
crucial
for
advanced
disease
detection,
monitoring,
personalized
treatment.
Special
emphasis
is
placed
green
techniques,
eco-friendly
cost-effective
benefits
biosensing,
imaging
therapeutic
applications.
Additionally,
appraisal
scrutinizes
progressive
trends
smart
stimuli-responsive
conferring
role
innovative
solutions
management
diagnostics.
Despite
promising
prophylactic
potential,
also
present
several
challenges,
particularly
regarding
toxicity
concerns.
These
challenges
implications
clinical
translation
thoroughly
explored,
providing
balanced
view
current
state
prospects
Acta Biomaterialia,
Journal Year:
2024,
Volume and Issue:
180, P. 82 - 103
Published: April 15, 2024
The
treatment
of
osteoporotic
bone
defect
remains
a
big
clinical
challenge
because
osteoporosis
(OP)
is
associated
with
oxidative
stress
and
high
levels
reactive
oxygen
species
(ROS),
condition
detrimental
for
formation.
Anti-oxidative
nanomaterials
such
as
selenium
nanoparticles
(SeNPs)
have
positive
effect
on
osteogenesis
owing
to
their
pleiotropic
pharmacological
activity
which
can
exert
anti-oxidative
functions
prevent
loss
facilitate
regeneration
in
OP.
In
the
current
study
strategy
one-pot
method
by
introducing
Poly
(lactic
acid-carbonate)
(PDT)
β-Tricalcium
Phosphate
(β-TCP)
SeNPs,
developed
prepare
an
injectable,
anti-collapse,
shape-adaptive
adhesive
graft
substitute
material
(PDT-TCP-SE).
PDT-TCP-SE
exhibits
sufficient
adhesion
biological
microenvironments
osteoinductive
activity,
angiogenic
anti-inflammatory
well
vitro
vivo.
Moreover,
protect
BMSCs
from
erastin-induced
ferroptosis
through
Sirt1/Nrf2/GPX4
antioxidant
pathway,
which,
together,
demonstrated
emerging
biomaterial
potential
application
future
defects.
Injectable,
adhesive,
plastic
bioactive
was
successfully
synthesized.
Incorporation
SeNPs
PDT
into
β-TCP
regenerated
new
in-situ
moderating
defects
area.
reduced
ROS
microenvironment.
could
also
moderate
inhibit
via
pathway
vitro.
alleviate
inflammatory
environment
promote
This
has
advantages
simple
synthesis,
biocompatibility,
regulation
level,
value
tissue
engineering.
Bioactive Materials,
Journal Year:
2024,
Volume and Issue:
38, P. 276 - 291
Published: May 7, 2024
Human
adenovirus
(HAdV)
can
cause
severe
respiratory
infections
in
immunocompromised
patients,
but
its
clinical
treatment
is
seriously
limited
by
side
effects
of
drugs
such
as
poor
efficacy,
low
bioavailability
and
nephrotoxicity.
Trace
element
selenium
(Se)
has
been
found
will
affect
the
disease
progression
pneumonia,
antivirus
efficacy
could
be
improved
speciation
optimization.
Therefore,
herein
we
performed
anti-HAdV
different
Se
that
lentinan
(LNT)-decorated
nanoparticles
(SeNPs)
exhibited
cytotoxicity
excellent
antiviral
activity.
Furthermore,
SeNPs@LNT
reduced
HAdV
infection-induced
mitochondrial
damage
excessive
production
reactive
oxygen
species
(ROS).
It
was
also
involved
repair
host
cell
DNA
inhibition
viral
replication.
inhibited
HAdV-induced
apoptosis
mainly
modulating
p53/Bcl-2
signaling
pathway.
In
vivo,
replenished
targeting
infected
site
through
circulatory
system
synthesis
Glutathione
peroxidase
1
(GPx1).
More
importantly,
GPx1
played
an
antioxidant
immunomodulatory
role
alleviating
inflammatory
cytokine
storm
pneumonia
Se-deficient
mice.
Collectively,
this
study
provides
a
with
activity,
demonstrate
promising
pharmaceutical
candidate
for
HAdV.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 30, 2024
Abstract
Radiation
colitis
is
one
of
the
most
common
complications
in
patients
undergoing
pelvic
radiotherapy
and
there
no
effective
treatment
clinic.
Therefore,
searching
for
agents
radiation
urgently
needed.
Herein,
it
found
that
essential
element
selenium
(Se)
protective
against
through
inhibiting
X‐ray‐induced
apoptosis,
cell
cycle
arrest,
inflammation
with
involvement
balancing
generation
reactive
oxygen
species
after
irradiation.
Mechanistically,
Se,
especially
nanoparticles
(SeNPs),
induced
selenoprotein
expression
then
functioned
to
effectively
restrain
DNA
damage
response,
which
reduced
intestinal
injury.
Additionally,
SeNPs
also
restrained
cyclic
GMP‐AMP
synthas
(cGAS)‐
stimulator
interferon
genes
(STING)‐TBK1‐IRF3
signaling
pathway
cascade,
thereby
blocking
transcription
inflammatory
cytokine
gene,
IL‐6
TNF‐α,
thus
alleviating
inflammation.
Moreover,
inducing
expression,
such
as
GPX4,
vivo
can
regulate
microenvironment
immunity
gut
microbiota
attenuate
radiation‐induced
by
oxidative
stress
maintaining
homeostasis.
Together,
these
results
unravel
a
previously
unidentified
modulation
role
but
suppressing
cGAS‐STING‐TBK1‐IRF3
cascade.