bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 23, 2024
ABSTRACT
The
modulation
of
complex
behaviors
in
response
to
environmental
and
physiological
contexts
is
a
fundamental
aspect
animal
biology,
with
neuropeptides
(NPs)
playing
crucial
role
this
process.
This
study
investigates
the
transcriptional
regulation
neuropeptide
receptors
(NPRs)
as
mechanism
for
context-dependent
neuropeptidergic
physiology
behavior.
We
hypothesize
that
control
NPR
genes,
rather
than
NPs
themselves,
critical
determinant
behavior
physiology.
Using
multi-faceted
approach,
including
comparative
genomics,
transcription
factor
network
analysis,
empirical
validation
model
organisms
such
Drosophila
melanogaster
,
we
reveal
regulatory
landscape
where
expression
tightly
controlled.
Our
findings
demonstrate
genes
exhibit
higher
number
enhancers,
CTCF-binding
sites,
open
chromatin
regions
compared
NP
suggesting
greater
susceptibility
modulation.
architecture
allows
precise
over
signaling,
enabling
dynamic
context-specific
behavioral
responses.
results
highlight
importance
NPR-expressing
cells
by
mediating
effects
on
show
conserved
across
species,
indicating
an
evolutionarily
significant
fine-tuning
signaling.
Furthermore,
our
provides
insights
into
distinct
mechanisms
underlying
multifunctionality
their
receptors,
offering
novel
perspective
behaviors.
In
conclusion,
advances
understanding
signaling
focusing
NPRs.
have
broad
implications
development
therapeutic
strategies
targeting
systems
various
neurological
disorders.
Hormones
mediate
inter-organ
signaling
which
is
crucial
in
orchestrating
diverse
behaviors
and
physiological
processes
including
sleep
activity,
feeding,
growth,
metabolism
reproduction.
The
pars
intercerebralis
lateralis
insects
represent
major
hubs
contain
neurosecretory
cells
(NSC)
that
produce
various
hormones.
To
obtain
insight
into
how
hormonal
regulated,
we
have
characterized
the
synaptic
connectome
of
NSC
adult
Drosophila
brain.
Identification
neurons
providing
inputs
to
multiple
subtypes
implicates
diuretic
hormone
44-expressing
as
a
coordinator
physiology
behavior.
Surprisingly,
despite
most
having
dendrites
subesophageal
zone
(primary
taste
processing
center),
gustatory
are
largely
indirect.
We
also
deciphered
pathways
via
olfactory
relayed
NSC.
Further,
our
analyses
revealed
substantial
from
descending
NSC,
suggesting
regulate
both
endocrine
motor
output
synchronize
changes
with
appropriate
behaviors.
In
contrast
inputs,
sparse
mostly
mediated
by
corazonin
Therefore,
additionally
determine
putative
paracrine
interconnectivity
between
peripheral
tissues
analyzing
single-cell
transcriptomic
datasets.
Our
comprehensive
characterization
network
provides
platform
understand
complex
networks
they
orchestrate
animal
physiology.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 23, 2024
ABSTRACT
The
modulation
of
complex
behaviors
in
response
to
environmental
and
physiological
contexts
is
a
fundamental
aspect
animal
biology,
with
neuropeptides
(NPs)
playing
crucial
role
this
process.
This
study
investigates
the
transcriptional
regulation
neuropeptide
receptors
(NPRs)
as
mechanism
for
context-dependent
neuropeptidergic
physiology
behavior.
We
hypothesize
that
control
NPR
genes,
rather
than
NPs
themselves,
critical
determinant
behavior
physiology.
Using
multi-faceted
approach,
including
comparative
genomics,
transcription
factor
network
analysis,
empirical
validation
model
organisms
such
Drosophila
melanogaster
,
we
reveal
regulatory
landscape
where
expression
tightly
controlled.
Our
findings
demonstrate
genes
exhibit
higher
number
enhancers,
CTCF-binding
sites,
open
chromatin
regions
compared
NP
suggesting
greater
susceptibility
modulation.
architecture
allows
precise
over
signaling,
enabling
dynamic
context-specific
behavioral
responses.
results
highlight
importance
NPR-expressing
cells
by
mediating
effects
on
show
conserved
across
species,
indicating
an
evolutionarily
significant
fine-tuning
signaling.
Furthermore,
our
provides
insights
into
distinct
mechanisms
underlying
multifunctionality
their
receptors,
offering
novel
perspective
behaviors.
In
conclusion,
advances
understanding
signaling
focusing
NPRs.
have
broad
implications
development
therapeutic
strategies
targeting
systems
various
neurological
disorders.