PGC1α‐Inducing Senomorphic Nanotherapeutics Functionalized with NKG2D‐Overexpressing Cell Membranes for Intervertebral Disc Degeneration
Sheng Liu,
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Kanglu Li,
No information about this author
Yuxin He
No information about this author
et al.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(22)
Published: March 30, 2024
Abstract
Cellular
senescence
is
a
significant
contributor
to
intervertebral
disc
aging
and
degeneration.
However,
the
application
of
senotherapies,
such
as
senomorphics
targeting
markers
senescence‐associated
secretory
phenotype
(SASP),
remains
limited
due
challenges
in
precise
delivery.
Given
that
natural
killer
group
2D
(NKG2D)
ligands
are
increased
on
surface
senescent
nucleus
pulposus
(NP)
cells,
NKG2D‐overexpressing
NP
cell
membranes
(NNPm)
constructed,
which
expected
achieve
dual
effect
toward
cells
based
homologous
membrane
fusion
NKG2D‐mediated
immunosurveillance
mechanism.
Then,
mesoporous
silica
nanoparticles
carrying
peroxisome
proliferator‐activated
receptor‐ɣ
coactivator
1α
(PGC1α)inducer
(SP)
coated
with
NNPm
(SP@NNPm)
it
found
SP@NNPm
selectively
targets
SP
cores
exhibit
pH‐responsive
drug
release.
Moreover,
effectively
induces
PGC1α‐mediated
mitochondrial
biogenesis
mitigates
induced
by
oxidative
stress
SASP,
thereby
alleviating
puncture‐induced
This
dual‐targeting
nanotherapeutic
system
represents
novel
approach
delivery
for
degeneration
treatment.
Language: Английский
MicroSphere 3D Structures Delay Tissue Senescence through Mechanotransduction
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
The
extracellular
matrix
(ECM)
stores
signaling
molecules
and
facilitates
mechanical
biochemical
in
cells.
However,
the
influence
of
biomimetic
"rejuvenation"
ECM
structures
on
aging-
degeneration-related
cellular
activities
tissue
repair
is
not
well
understood.
We
combined
physical
extrusion
precise
"on–off"
alternating
cross-linking
methods
to
create
anisotropic
biomaterial
microgels
(MicroRod
MicroSphere)
explored
how
they
regulate
cell
nucleus
pulposus
(NP)
their
potential
antidegenerative
effects
intervertebral
discs.
NP
cells
exhibited
aligned
growth
along
surface
MicroRod,
enhanced
proliferation,
reduced
apoptosis.
This
suggests
an
adaptive
response
involving
adhesion
mechanosensing,
which
causes
cytoskeletal
extension
via
environmental
cues.
maintain
nuclear
membrane
integrity
through
YAP/TAZ
pathway,
activates
cGAS-STING
pathway
rectify
aging
mechanisms.
In
vivo,
MicroRod
carries
reduces
inflammatory
factor
protease
secretion
degenerated
discs,
inhibiting
degeneration
promoting
regeneration.
Our
findings
highlight
role
stress
maintaining
activity
antiaging
harsh
environments,
providing
a
foundation
for
further
research
development
biomaterials.
Language: Английский
Natural Product-Derived Senotherapeutics: Extraction and Biological Evaluation Techniques
Methods in molecular biology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 315 - 359
Published: Jan. 1, 2025
Language: Английский
The anti-oxidation related bioactive materials for intervertebral disc degeneration regeneration and repair
Yingjie Mai,
No information about this author
Siying Wu,
No information about this author
Penghui Zhang
No information about this author
et al.
Bioactive Materials,
Journal Year:
2024,
Volume and Issue:
45, P. 19 - 40
Published: Nov. 9, 2024
Language: Английский
Oxidative stress and cellular senescence: Roles in tumor progression and therapeutic opportunities
MedComm – Oncology,
Journal Year:
2024,
Volume and Issue:
3(4)
Published: Dec. 1, 2024
Abstract
Oxidative
stress
results
from
an
imbalance
between
the
production
and
neutralization
of
reactive
oxygen
species.
It
induces
oxidative
damage
to
cellular
components
including
proteins,
lipids,
nucleic
acids,
membranes,
therefore
intrinsically
linking
aging‐related
diseases
such
as
cancer,
cardiovascular
disease,
neurological
disorders.
Emerging
evidence
suggests
that
may
promote
tumor
development
by
influencing
various
aspects
senescence,
its
onset,
pro‐inflammatory
secretion,
alteration
function
structure.
Modulating
target
senescence
offers
a
novel
strategy
for
cancer
prevention
treatment.
However,
thorough
grasp
specific
mechanisms
at
play
is
lacking.
This
review
will
present
association
their
regulatory
role
in
progression
treatment,
with
emphasis
on
senescence‐associated
secretory
phenotype,
immunosenescence
therapy‐induced
senescence.
Current
agents
strategies
remove
side
effects
via
killing
senescent
cells
or
modulating
improve
antitumor
efficacy
be
summarized.
help
readers
better
understand
complex
relationship
also
provide
basis
further
research
this
area.
Language: Английский