The
claustrum
(CLA),
a
subcortical
nucleus
in
mammals,
essentially
composed
of
excitatory
projection
neurons
and
known
for
its
extensive
connections
with
the
neocortex,
has
recently
been
associated
variety
functions
ranging
from
consciousness
to
impulse
control.
However,
research
on
CLA
challenging
due
difficulties
specifically
comprehensively
targeting
neuronal
populations.
In
various
cases,
this
limitation
led
inconsistent
findings
lack
reliable
data.
present
work,
we
describe
expression
profile
Smim32
gene,
which
is
almost
exclusively
transcribed
endopiriform
nucleus,
as
well
inhibitory
thalamic
reticular
nucleus.
Leveraging
unique
pattern,
developed
series
Cre-
Flippase-expressing
knockin
BAC
transgenic
mouse
lines
different
profiles.
With
these
novel
tools
hand,
propose
new
standards
interrogation
function.
Cell Reports,
Год журнала:
2023,
Номер
42(5), С. 112506 - 112506
Опубликована: Май 1, 2023
Persistent
pain
is
a
prevalent
medical
concern
correlating
with
hyperexcitable
anterior
cingulate
cortex
(ACC).
Its
activity
modulated
by
inputs
from
several
brain
regions,
but
the
maladjustments
that
these
afferent
circuits
undergo
during
transition
acute
to
chronic
still
require
clarification.
We
focus
on
ACC-projecting
claustrum
(CLAACC)
neurons
and
their
responses
sensory
aversive
stimuli
in
mouse
model
of
inflammatory
pain.
Using
chemogenetics,
vivo
calcium
imaging,
ex
electrophysiological
approaches,
we
reveal
suppression
CLAACC
acutely
attenuates
allodynia
preferentially
transmits
information
ACC.
With
prolonged
pain,
claustro-cingulate
functional
impairment
develops,
which
mediated
weakened
excitatory
drive
onto
ACC
pyramidal
neurons,
resulting
diminished
claustral
influence
These
findings
support
an
instrumental
role
processing
nociceptive
its
susceptibility
persistent
states.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июнь 26, 2024
Abstract
The
claustrum
has
been
linked
to
attention
and
sleep.
We
hypothesized
that
this
reflects
a
shared
function,
determining
responsiveness
stimuli,
which
spans
the
axis
of
engagement.
To
test
hypothesis,
we
recorded
population
dynamics
from
male
mice
during
both
sleep
an
attentional
task
(‘ENGAGE’).
Heightened
activity
in
neurons
projecting
anterior
cingulate
cortex
(ACCp)
corresponded
reduced
sensory
Similarly,
ENGAGE
task,
heightened
ACCp
correlated
with
disengagement
behavioral
lapses,
while
low
hyper-engagement
impulsive
errors.
Chemogenetic
elevation
awakenings
errors
task.
Furthermore,
employing
exploration
strategy
showed
stronger
correlation
between
performance
compared
exploitation
complexity.
Our
results
implicate
restricting
engagement
goal-directed
behavior.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2022,
Номер
unknown
Опубликована: Май 6, 2022
The
claustrum
is
thought
to
be
one
of
the
most
highly
interconnected
forebrain
structures
but
its
organizing
principles
have
yet
fully
explored
at
level
single
neurons.
Here,
we
investigated
identity,
connectivity,
and
activity
identified
neurons
understand
how
structure's
unique
convergence
input
divergence
output
support
binding
information
streams.
We
found
that
in
communicate
with
each
other
across
efferent
projection-defined
modules
which
were
differentially
innervated
by
sensory
frontal
cortical
areas.
Individual
responsive
inputs
from
more
than
region
a
cell-type
projection-specific
manner,
particularly
between
areas
cortex.
In
vivo
imaging
axons
revealed
responses
both
unimodal
multimodal
stimuli.
Finally,
chronic
silencing
specifically
reduced
animals'
sensitivity
These
findings
view
fundamentally
integrative
structure,
consolidating
around
cortex
redistributing
it
following
local
computations.
Cell Reports,
Год журнала:
2023,
Номер
43(1), С. 113620 - 113620
Опубликована: Дек. 29, 2023
Neural
activity
in
the
claustrum
has
been
associated
with
a
range
of
vigilance
states,
yet
patterns
and
efficacy
synaptic
communication
identified
neurons
have
not
thoroughly
determined.
Here,
we
show
that
projecting
to
retrosplenial
cortex
are
most
active
during
synchronized
cortical
states
such
as
non-rapid
eye
movement
(NREM)
sleep
suppressed
increased
desynchronization
arousal,
movement,
REM
sleep.
The
claustrocortical
signaling
is
NREM
diminished
due
part
cholinergic
tone.
Finally,
activation
enhances
memory
consolidation
through
phase
resetting
delta
waves.
Therefore,
constrained
function
effectively
cognitive
processes
consolidation.
Current Biology,
Год журнала:
2023,
Номер
33(13), С. 2761 - 2773.e8
Опубликована: Июнь 27, 2023
The
synthetic
opioid
fentanyl
is
a
major
contributor
to
the
current
addiction
crisis.
We
report
that
claustral
neurons
projecting
frontal
cortex
limit
oral
self-administration
in
mice.
found
transcriptionally
activates
frontal-projecting
claustrum
neurons.
These
also
exhibit
unique
suppression
of
Ca2+
activity
upon
initiation
bouts
consumption.
Optogenetic
stimulation
neurons,
intervening
this
suppression,
decreased
In
contrast,
constitutive
inhibition
context
novel,
group-housed
procedure
increased
bout
This
same
manipulation
sensitized
conditioned-place
preference
for
and
enhanced
representation
experience
cortex.
Together,
our
results
indicate
exert
inhibitory
control
over
cortical
restrict
intake.
Upregulation
claustro-frontal
projection
may
be
promising
strategy
reducing
human
addiction.