bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 20, 2023
Abstract
The
postsynaptic
density
component
PSD-95
undergoes
activity-dependent
plasticity
mechanisms
that
rely
on
protein
synthesis
and
structural
remodeling.
How
synaptic
activity
can
influence
these
dynamics
at
the
single
synapse
level
remains
unclear.
Here
we
combine
genome-editing,
pulse-chase
experiments,
STED
3D
MINFLUX
nanoscopy
hippocampal
neuronal
cultures
to
study
integration
of
newly
translated
molecules
sites
their
rearrangement
within
individual
clusters
near-molecular
resolution.
We
show
amount
recruited
synapses
scales
with
size,
modulates
in
a
bidirectional
manner,
resulting
less
new
following
excitatory
more
inhibitory
stimulation.
Furthermore,
has
dispersed
organization
is
largely
robust
long-lasting
changes
activity.
Altogether,
this
work
sheds
light
underlying
level,
adding
previously
inaccessible
information.
Frontiers of Optoelectronics,
Journal Year:
2023,
Volume and Issue:
16(1)
Published: Nov. 10, 2023
Abstract
The
development
of
super-resolution
technology
has
made
it
possible
to
investigate
the
ultrastructure
intracellular
organelles
by
fluorescence
microscopy,
which
greatly
facilitated
life
sciences
and
biomedicine.
To
realize
imaging
living
cells,
both
advanced
systems
excellent
fluorescent
probes
are
required.
Traditional
have
good
availability,
but
that
is
not
case
for
live-cell
imaging.
In
this
review,
we
first
introduce
principles
various
technologies
their
probe
requirements,
then
summarize
existing
designs
delivery
strategies
imaging,
finally
provide
a
brief
conclusion
overview
future.
Graphical
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 20, 2023
Abstract
The
postsynaptic
density
component
PSD-95
undergoes
activity-dependent
plasticity
mechanisms
that
rely
on
protein
synthesis
and
structural
remodeling.
How
synaptic
activity
can
influence
these
dynamics
at
the
single
synapse
level
remains
unclear.
Here
we
combine
genome-editing,
pulse-chase
experiments,
STED
3D
MINFLUX
nanoscopy
hippocampal
neuronal
cultures
to
study
integration
of
newly
translated
molecules
sites
their
rearrangement
within
individual
clusters
near-molecular
resolution.
We
show
amount
recruited
synapses
scales
with
size,
modulates
in
a
bidirectional
manner,
resulting
less
new
following
excitatory
more
inhibitory
stimulation.
Furthermore,
has
dispersed
organization
is
largely
robust
long-lasting
changes
activity.
Altogether,
this
work
sheds
light
underlying
level,
adding
previously
inaccessible
information.