Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Jan. 5, 2023
The
lateral
hypothalamus
(LH)
is
physiologically
critical
in
brain
functions.
LH
also
plays
an
important
role
drug
addiction.
However,
neural
circuits
underlying
involvement
of
addiction
remain
obscure.
In
the
present
study,our
results
showed
that
male
mice,
during
context-induced
expression
morphine
withdrawal
memory,
glutamatergic
neurons
played
role;
dopamine
D1
receptor-expressing
medium
spiny
(D1-MSNs)
projecting
from
core
nucleus
accumbens
(NAcC)
to
were
upstream
circuit
activate
neurons;
D1-MSNs
NAcC
activated
through
inhibiting
local
gamma-aminobutyric
acid
(GABA)
neurons.
These
suggest
disinhibited
by
importantly
contribute
memory.
Cell Reports,
Journal Year:
2023,
Volume and Issue:
42(2), P. 112069 - 112069
Published: Feb. 1, 2023
The
nucleus
accumbens
(NAc)
plays
an
important
role
in
motivation
and
reward
processing.
Recent
studies
suggest
that
different
NAc
subnuclei
differentially
contribute
to
reward-related
behaviors.
However,
how
is
encoded
individual
neurons
remains
unclear.
Using
vivo
single-cell
resolution
calcium
imaging,
we
find
diverse
patterns
of
encoding
the
medial
lateral
shell
subdivision
(NAcMed
NAcLat,
respectively).
Reward
consumption
increases
NAcLat
activity
but
decreases
NAcMed
activity,
albeit
with
high
variability
among
neurons.
heterogeneity
could
be
attributed
differences
their
synaptic
inputs
transcriptional
profiles.
Specific
optogenetic
activation
Nts-positive
promotes
positive
reinforcement,
while
Cartpt-positive
induces
behavior
aversion.
Collectively,
our
study
shows
organizational
subregions
provides
a
framework
for
future
dissection
physiological
pathological
conditions.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: March 7, 2023
In
mammalian
brains,
tens
of
millions
to
billions
cells
form
complex
interaction
networks
enable
a
wide
range
functions.
The
enormous
diversity
and
intricate
organization
in
the
brain
have
so
far
hindered
our
understanding
molecular
cellular
basis
its
Recent
advances
spatially
resolved
single-cell
transcriptomics
allowed
systematic
mapping
spatial
molecularly
defined
cell
types
tissues1-3.
However,
these
approaches
only
been
applied
few
regions1-11
comprehensive
atlas
whole
is
still
missing.
Here,
we
imaged
panel
>1,100
genes
~8
million
across
entire
adult
mouse
using
multiplexed
error-robust
fluorescence
situ
hybridization
(MERFISH)12
performed
resolved,
expression
profiling
at
whole-transcriptome
scale
by
integrating
MERFISH
RNA-sequencing
(scRNA-seq)
data.
Using
this
approach,
generated
>5,000
transcriptionally
distinct
clusters,
belonging
~300
major
types,
with
high
resolution.
Registration
images
common
coordinate
framework
(CCF)
further
quantifications
composition
individual
regions
CCF.
We
identified
modules
characterized
cell-type
compositions
gradients
featuring
gradual
changes
gene-expression
profiles
cells.
Finally,
high-resolution
map
cells,
transcriptome-wide
profile
associated
each
cell,
us
infer
cell-type-specific
interactions
between
several
hundred
pairs
predict
potential
(ligand-receptor)
functional
implications
cell-cell
interactions.
These
results
provide
rich
insights
into
architecture
valuable
resource
for
future
investigations
neural
circuits
their
dysfunction
diseases.
Science,
Journal Year:
2024,
Volume and Issue:
384(6693)
Published: April 18, 2024
Drugs
of
abuse
are
thought
to
promote
addiction
in
part
by
“hijacking”
brain
reward
systems,
but
the
underlying
mechanisms
remain
undefined.
Using
whole-brain
FOS
mapping
and
vivo
single-neuron
calcium
imaging,
we
found
that
drugs
augment
dopaminoceptive
ensemble
activity
nucleus
accumbens
(NAc)
disorganize
overlapping
responses
natural
rewards
a
cell
type–specific
manner.
Combining
FOS-Seq,
CRISPR-perturbation,
single-nucleus
RNA
sequencing,
identified
Rheb
as
molecular
substrate
regulates
signal
transduction
NAc
while
enabling
suppress
consumption.
Mapping
NAc-projecting
regions
activated
revealed
input-specific
effects
on
These
findings
characterize
dynamic,
circuit
basis
common
pathway,
wherein
interfere
with
fulfillment
innate
needs.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Jan. 5, 2024
Abstract
Tissue
structure
identification
is
a
crucial
task
in
spatial
omics
data
analysis,
for
which
increasingly
complex
models,
such
as
Graph
Neural
Networks
and
Bayesian
networks,
are
employed.
However,
whether
increased
model
complexity
can
effectively
lead
to
improved
performance
notable
question
the
field.
Inspired
by
consistent
observation
of
cellular
neighborhood
structures
across
various
technologies,
we
propose
Multi-range
cEll
coNtext
DEciphereR
(MENDER),
tissue
identification.
Applied
on
datasets
3
brain
regions
whole-brain
atlas,
MENDER,
with
biology-driven
design,
offers
substantial
improvements
over
modern
models
while
automatically
aligning
labels
slices,
despite
using
much
less
running
time
than
second-fastest.
MENDER’s
power
allows
uncovering
previously
overlooked
domains
that
exhibit
strong
associations
aging.
scalability
makes
it
freely
appliable
million-level
atlas.
discriminative
enables
differentiation
breast
cancer
patient
subtypes
obscured
single-cell
analysis.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: March 4, 2024
Abstract
The
“dorsal
pons”,
or
pontine
tegmentum”
(dPnTg),
is
part
of
the
brainstem.
It
a
complex,
densely
packed
region
whose
nuclei
are
involved
in
regulating
many
vital
functions.
Notable
among
them
parabrachial
nucleus,
Kölliker
Fuse,
Barrington
locus
coeruleus,
and
dorsal,
laterodorsal,
ventral
tegmental
nuclei.
In
this
study,
we
applied
single-nucleus
RNA-seq
(snRNA-seq)
to
resolve
neuronal
subtypes
based
on
their
unique
transcriptional
profiles
then
used
multiplexed
error
robust
fluorescence
situ
hybridization
(MERFISH)
map
spatially.
We
sampled
~1
million
cells
across
dPnTg
defined
spatial
distribution
over
120
subtypes.
Our
analysis
identified
an
unpredicted
high
diversity
pinpointed
marker
genes
also
demonstrated
that
transcriptionally
similar
between
humans
mice,
enhancing
study’s
translational
value.
Finally,
developed
freely
accessible,
GPU
CPU-powered
dashboard
(
http://harvard.heavy.ai:6273/
)
combines
interactive
visual
analytics
hardware-accelerated
SQL
into
data
science
framework
allow
scientific
community
query
gain
insights
data.
Neuron,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 1, 2025
The
neural
mechanisms
underlying
the
sequential
transitions
of
male
sexual
behaviors,
including
mounting,
intromission,
and
ejaculation,
remain
largely
unexplored.
Here,
we
report
that
acetylcholine
(ACh)-dopamine
(DA)
dynamics
in
ventral
shell
nucleus
accumbens
(vsNAc)
regulate
these
mice.
During
vsNAc
displays
a
unique
pattern
dual
ACh-DA
rhythms,
generated
by
reciprocal
regulation
between
ACh
DA
signaling
via
nicotinic
receptors
(nAChRs)
D2
(D2Rs).
Knockdown
choline
acetyltransferase
(ChAT)
or
D2R
diminishes
occurrence
intromission
ejaculation.
Optogenetic
manipulations
demonstrated
maintains
behaviors
suppressing
D2RvsNAc
neurons.
Moreover,
promotes
initiation
mounting
facilitates
intromission-ejaculation
transition
inducing
slowdown
rhythm.
Together,
findings
reveal
coordinated
play
critical
role
orchestrating
behaviors.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Oct. 21, 2022
Abstract
The
nucleus
accumbens
(NAc)
is
critical
in
mediating
reward
seeking
and
also
involved
negative
emotion
processing,
but
the
cellular
circuitry
mechanisms
underlying
such
opposing
behaviors
remain
elusive.
Here,
using
recently
developed
AAV1-mediated
anterograde
transsynaptic
tagging
technique
mice,
we
show
that
NAc
neurons
receiving
basolateral
amygdala
inputs
(NAc
BLA
)
promote
positive
reinforcement
via
disinhibiting
dopamine
ventral
tegmental
area
(VTA).
In
contrast,
paraventricular
thalamic
PVT
innervate
GABAergic
lateral
hypothalamus
(LH)
mediate
aversion.
Silencing
synaptic
output
of
impairs
behavior,
while
silencing
or
→LH
pathway
abolishes
aversive
symptoms
opiate
withdrawal.
Our
results
elucidate
afferent-specific
circuit
architecture
controlling
Science,
Journal Year:
2022,
Volume and Issue:
375(6585), P. 1177 - 1182
Published: March 10, 2022
Angiotensin-converting
enzyme
(ACE)
regulates
blood
pressure
by
cleaving
angiotensin
I
to
produce
II.
In
the
brain,
ACE
is
especially
abundant
in
striatal
tissue,
but
function
of
circuits
remains
poorly
understood.
We
found
that
degrades
an
unconventional
enkephalin
heptapeptide,
Met-enkephalin-Arg-Phe,
nucleus
accumbens
mice.
inhibition
enhanced
µ-opioid
receptor
activation
causing
a
cell
type–specific
long-term
depression
glutamate
release
onto
medium
spiny
projection
neurons
expressing
Drd1
dopamine
receptor.
Systemic
was
not
intrinsically
rewarding,
it
led
decrease
conditioned
place
preference
caused
fentanyl
administration
and
enhancement
reciprocal
social
interaction.
Our
results
raise
enticing
prospect
central
can
boost
endogenous
opioid
signaling
for
clinical
benefit
while
mitigating
risk
addiction.