Nature Communications,
Journal Year:
2016,
Volume and Issue:
7(1)
Published: Nov. 22, 2016
Abstract
Coordination
of
organ
growth
during
development
is
required
to
generate
fit
individuals
with
fixed
proportions.
We
recently
identified
Drosophila
Dilp8
as
a
key
hormone
in
coupling
animal
maturation.
In
addition,
dilp8
mutant
flies
exhibit
elevated
fluctuating
asymmetry
(FA)
demonstrating
function
for
ensuring
developmental
stability.
The
signals
regulating
activity
normal
are
not
yet
known.
Here,
we
show
that
the
transcriptional
co-activators
Hippo
(Hpo)
pathway,
Yorkie
(Yki,
YAP/TAZ)
and
its
DNA-binding
partner
Scalloped
(Sd),
directly
regulate
expression
through
Hpo-responsive
element
(HRE)
promoter.
further
demonstrate
mutation
HRE
by
genome-editing
results
animals
increased
FA,
thereby
mimicking
full
loss
function.
Therefore,
our
indicate
coordination
organs
connected
their
status
feedback
loop
involving
Hpo
signalling
pathways.
Cell and Tissue Research,
Journal Year:
2020,
Volume and Issue:
382(2), P. 233 - 266
Published: Aug. 22, 2020
Hormones
regulate
development,
as
well
many
vital
processes
in
the
daily
life
of
an
animal.
Many
these
hormones
are
peptides
that
act
at
a
higher
hierarchical
level
animal
with
roles
organizers
globally
orchestrate
metabolism,
physiology
and
behavior.
Peptide
can
on
multiple
peripheral
targets
simultaneously
convey
basal
states,
such
metabolic
status
sleep-awake
or
arousal
across
central
neuronal
circuits.
Thereby,
they
coordinate
responses
to
changing
internal
external
environments.
The
activity
neurosecretory
cells
is
controlled
either
by
(1)
cell
autonomous
sensors,
(2)
other
neurons
relay
signals
from
sensors
tissues
(3)
feedback
target
cells.
Thus,
hormonal
signaling
axis
commonly
comprises
several
components.
In
mammals
vertebrates,
axes
known,
hypothalamic-pituitary-gonad
hypothalamic-pituitary-thyroid
reproduction
respectively.
It
has
been
proposed
basic
organization
evolutionarily
old
cellular
homologs
hypothalamic-pituitary
system
be
found
for
instance
insects.
To
obtain
appreciation
similarities
between
insect
vertebrate
axes,
we
review
systems
Drosophila.
Our
outlines
major
peptidergic
pathways
known
Drosophila
presents
set
schemes
orchestrating
systems.
detailed
larval
adult
displays
only
very
those
arthropods
vertebrates.
Open Biology,
Journal Year:
2021,
Volume and Issue:
11(2)
Published: Feb. 1, 2021
In
both
mammals
and
insects,
steroid
hormones
play
a
major
role
in
directing
the
animal's
progression
through
developmental
stages.
To
maximize
fitness
outcomes,
hormone
production
is
regulated
by
environmental
conditions
experienced
animal.
ecdysone
mediates
transitions
between
stages
response
to
factors
such
as
nutrition.
These
signals
are
communicated
ecdysone-producing
gland
via
action
of
neuropeptide
peptide
signalling
pathways.
While
some
these
pathways
have
been
well
characterized,
there
evidence
suggest
more
than
has
previously
thought
function
control
production,
potentially
greater
range
conditions.
Here,
we
review
known
regulate
model
genetic
insect
Drosophila
melanogaster
,
what
regarding
that
trigger
Areas
for
future
research
highlighted
can
further
contribute
our
overall
understanding
complex
orchestration
environmental,
physiological
cues
together
produce
functioning
adult
organism.
Development,
Journal Year:
2018,
Volume and Issue:
145(6)
Published: Feb. 22, 2018
Adult
size
and
fitness
are
controlled
by
a
combination
of
genetics
environmental
cues.
In
Drosophila,
growth
is
confined
to
the
larval
phase
final
body
impacted
duration
this
phase,
which
under
neuroendocrine
control.
The
neuropeptide
prothoracicotropic
hormone
(PTTH)
has
been
proposed
play
central
role
in
controlling
length
through
regulation
ecdysone
production,
steroid
that
initiates
molting
metamorphosis.
Here,
we
test
examining
consequences
null
mutations
Ptth
gene
for
Drosophila
development.
Loss
causes
several
developmental
defects,
including
delay
timing,
increase
critical
weight,
loss
coordination
between
imaginal
disc
growth,
reduced
adult
survival
suboptimal
conditions
such
as
nutritional
deprivation
or
high
population
density.
These
defects
caused
decrease
production
associated
with
altered
transcription
biosynthetic
genes.
Therefore,
PTTH
signal
contributes
cues
program
ensure
individual
survival.
FEBS Journal,
Journal Year:
2020,
Volume and Issue:
288(13), P. 3928 - 3947
Published: Oct. 6, 2020
Organisms
have
constant
contact
with
potentially
harmful
agents
that
can
compromise
their
fitness.
However,
most
of
the
times
these
fail
to
cause
serious
disease
by
virtue
rapid
and
efficient
immune
responses
elicited
in
host
range
from
behavioural
adaptations
system
triggering.
The
insects
does
not
comprise
adaptive
arm,
making
it
less
complex
than
vertebrates,
but
key
aspects
activation
regulation
innate
immunity
are
conserved
across
different
phyla.
This
is
case
for
hormonal
as
a
part
broad
organismal
external
conditions
under
internal
states.
In
insects,
depending
on
physiological
circumstances,
distinct
hormones
either
enhance
or
suppress
response
integrating
individual
(and
often
collective)
physiologically
behaviourally.
this
review,
we
provide
an
overview
our
current
knowledge
endocrine
its
mechanisms
implications
metabolic
adaptation
behaviour.
We
highlight
importance
multilayered
survival
reproduction
(fitness)
dependence
integration
other
life‐history
traits.