ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(22), P. 14123 - 14144
Published: May 20, 2024
Optogenetic,
known
as
the
method
of
21
centuries,
combines
optic
and
genetic
engineering
to
precisely
control
photosensitive
proteins
for
manipulation
a
broad
range
cellular
functions,
such
flux
ions,
protein
oligomerization
dissociation,
intercommunication,
so
on.
In
this
technique,
light
is
conventionally
delivered
targeted
cells
through
optical
fibers
or
micro
light-emitting
diodes,
always
suffering
from
high
invasiveness,
wide-field
illumination
facula,
strong
absorption,
scattering
by
nontargeted
endogenous
substance.
Light-transducing
nanomaterials
with
advantages
spatiotemporal
resolution,
abundant
wireless-excitation
manners,
easy
functionalization
recognition
specific
cells,
recently
have
been
widely
explored
in
field
optogenetics;
however,
there
remain
few
challenges
restrain
its
clinical
applications.
This
review
summarized
recent
progress
on
light-responsive
genetically
encoded
myriad
activation
strategies
use
light-transducing
their
disease-treatment
applications,
which
expected
sparking
helpful
thought
push
forward
preclinical
translational
uses.
Nature,
Journal Year:
2022,
Volume and Issue:
611(7935), P. 405 - 412
Published: Nov. 2, 2022
Abstract
Solid
tumours
are
innervated
by
nerve
fibres
that
arise
from
the
autonomic
and
sensory
peripheral
nervous
systems
1–5
.
Whether
neo-innervation
of
pain-initiating
neurons
affects
cancer
immunosurveillance
remains
unclear.
Here
we
show
melanoma
cells
interact
with
nociceptor
neurons,
leading
to
increases
in
their
neurite
outgrowth,
responsiveness
noxious
ligands
neuropeptide
release.
Calcitonin
gene-related
peptide
(CGRP)—one
such
nociceptor-produced
neuropeptide—directly
exhaustion
cytotoxic
CD8
+
T
cells,
which
limits
capacity
eliminate
melanoma.
Genetic
ablation
TRPV1
lineage,
local
pharmacological
silencing
nociceptors
antagonism
CGRP
receptor
RAMP1
all
reduced
tumour-infiltrating
leukocytes
decreased
growth
tumours,
nearly
tripling
survival
rate
mice
were
inoculated
B16F10
cells.
Conversely,
cell
was
rescued
sensory-neuron-depleted
treated
recombinant
CGRP.
As
compared
wild-type
Ramp1
−/
−
protected
against
when
co-transplanted
into
tumour-bearing
Rag1
-deficient
mice.
Single-cell
RNA
sequencing
biopsies
patients
revealed
intratumoral
-expressing
more
exhausted
than
-negative
counterparts,
whereas
overexpression
correlated
a
poorer
clinical
prognosis.
Overall,
our
results
suggest
reducing
release
tumour-innervating
could
be
strategy
improve
anti-tumour
immunity
eliminating
immunomodulatory
effects
on
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Feb. 11, 2022
Abstract
Optogenetic
methods
provide
efficient
cell-specific
modulations,
and
the
ability
of
simultaneous
neural
activation
inhibition
in
same
brain
region
freely
moving
animals
is
highly
desirable.
Here
we
report
bidirectional
neuronal
activity
manipulation
accomplished
by
a
wireless,
dual-color
optogenetic
probe
synergy
with
co-expression
two
spectrally
distinct
opsins
(ChrimsonR
stGtACR2)
rodent
model.
The
flexible
comprises
vertically
assembled,
thin-film
microscale
light-emitting
diodes
lateral
dimension
125
×
180
µm
2
,
showing
colocalized
red
blue
emissions
enabling
chronic
vivo
operations
desirable
biocompatibilities.
Red
or
irradiations
deterministically
evoke
silence
neurons
co-expressing
opsins.
interferes
dopaminergic
ventral
tegmental
area
mice,
increasing
decreasing
dopamine
levels.
Such
regulations
further
generate
rewarding
aversive
behaviors
interrogate
social
interactions
among
multiple
mice.
These
technologies
create
numerous
opportunities
implications
for
research.
Frontiers in Aging Neuroscience,
Journal Year:
2022,
Volume and Issue:
14
Published: April 19, 2022
Optogenetic
is
a
technique
that
combines
optics
and
genetics
to
control
specific
neurons.
This
usually
uses
adenoviruses
encode
photosensitive
protein.
The
adenovirus
may
concentrate
in
neural
region.
By
shining
light
on
the
target
nerve
region,
protein
encoded
by
controlled.
Photosensitive
proteins
controlled
can
selectively
allow
ions
inside
outside
cell
membrane
pass
through,
resulting
inhibition
or
activation
effects.
Due
high
precision
minimally
invasive,
optogenetics
has
achieved
good
results
many
fields,
especially
field
of
neuron
functions
circuits.
Significant
advances
have
also
been
made
study
clinical
diseases.
review
focuses
research
neurobiology.
These
include
how
use
cells,
circuits,
treat
diseases
changing
state
We
hoped
this
will
give
comprehensive
understanding
progress
Journal of Neural Engineering,
Journal Year:
2021,
Volume and Issue:
18(3), P. 031001 - 031001
Published: March 8, 2021
Peripheral
nerve
interfaces
(PNIs)
record
and/or
modulate
neural
activity
of
nerves,
which
are
responsible
for
conducting
sensory-motor
information
to
and
from
the
central
nervous
system,
regulating
inner
organs.
PNIs
used
both
in
neuroscience
research
therapeutical
applications
such
as
precise
closed-loop
control
neuroprosthetic
limbs,
treatment
neuropathic
pain
restoration
vital
functions
(e.g.
breathing
bladder
management).
Implantable
represent
an
attractive
solution
directly
access
peripheral
nerves
provide
enhanced
selectivity
recording
stimulation,
compared
their
non-invasive
counterparts.
Nevertheless,
long-term
functionality
implantable
is
limited
by
tissue
damage,
occurs
at
implant-tissue
interface,
thus
highly
dependent
on
material
properties,
biocompatibility
implant
design.
Current
focuses
development
mechanically
compliant
PNIs,
adapt
anatomy
dynamic
movements
body
thereby
limiting
foreign
response.
In
this
paper,
we
review
recent
progress
flexible
highlighting
promising
solutions
related
materials
selection
associated
fabrication
methods,
integrated
functions.
We
report
variety
available
interface
designs
(intraneural,
extraneural
regenerative)
different
modulation
techniques
(electrical,
optical,
chemical)
emphasizing
main
challenges
with
integrating
systems
substrates.
Journal of Neuroinflammation,
Journal Year:
2022,
Volume and Issue:
19(1)
Published: May 27, 2022
The
complex
pathophysiology
of
epilepsy
hampers
the
development
effective
treatments.
Although
more
than
ten
kinds
anti-seizures
drugs
(ASDs)
have
good
effects
on
seizure
control
worldwide,
about
30%
patients
still
display
pharmacoresistance
against
ASDs.
Neuroinflammation
seems
to
play
a
crucial
role
in
disease
progression.
G
protein-coupled
receptor
120
(GPR120)
has
been
shown
negatively
regulate
inflammation
and
apoptosis.
However,
GPR120
remains
unclear.
In
this
study,
we
aimed
explore
mechanism
epilepsy.Male
adult
C57BL/6
mice
were
intracranially
injected
with
kainic
acid
(KA)
establish
model,
adeno
associated
virus
(AAV)
was
administered
at
3
weeks
before
KA
injection.
VX765
by
intragastric
administration
30
min
induced
an
equal
dose
administrated
twice
day
(10
a.m.
4
p.m.)
lasting
7
days
until
killed.
Western
blot
analysis,
immunofluorescence
staining,
video
monitoring
seizure,
LFP
recording,
Nissl
staining
performed.GPR120
increased
both
hippocampus
cortex
KA-induced
model
temporal
lobe
(TLE),
most
highly
expressed
after
Overexpression
significantly
alleviated
epileptic
activity,
reduced
neuronal
death
status
epilepticus
(SE),
downregulated
expression
IL-1β,
IL-6,
IL-18,
pyrin
domain-containing
protein
(NLRP3)
inflammasome,
whereas
knockdown
showed
opposite
effect.
reversed
inhibition
cysteinyl
aspartate
specific
proteinase-1
(Caspase-1).GPR120
modulates
activity
affects
survival
mouse
epilepsy.
Furthermore,
regulated
neuroinflammation
animals
through
NLRP3/Caspase-1/IL-1β
signaling
pathway.