Genes to Cells,
Journal Year:
2023,
Volume and Issue:
28(12), P. 857 - 867
Published: Oct. 10, 2023
Drosophila
imaginal
disc
cells
can
change
their
identity
under
stress
conditions
through
transdetermination
(TD).
Research
on
TD
help
elucidate
the
in
vivo
process
of
cell
fate
conversion.
We
previously
showed
that
overexpression
winged
eye
(wge)
induces
eye-to-wing
and
an
insulin-like
peptide,
Dilp8,
is
then
highly
expressed
disc.
Although
Dilp8
known
to
mediate
systemic
developmental
delay
via
Lgr3
receptor,
its
role
remains
unknown.
This
study
specific
do
not
express
or
wing
markers
during
Wge-mediated
loss
impairs
transition.
Thus,
plays
a
pivotal
conversion
wge
overexpression.
Furthermore,
we
found
instead
Lgr3,
another
candidate
Drl,
involved
acts
locally
cells.
propose
model
which
Dilp8-Drl
signaling
organizes
TD.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 11, 2024
Communication
between
cells
in
metazoan
organisms
is
mediated
by
a
remarkably
small
number
of
highly
conserved
signaling
pathways.
Given
the
relatively
pathways,
existence
multiple
related
ligands
for
many
these
pathways
thought
to
represent
key
evolutionary
innovation
encoding
complexity
into
cell-cell
signaling.
Relatedly,
crosstalk
and
other
interactions
another
critical
feature
which
allows
modest
ultimately
generate
an
enormously
diverse
range
outcomes.
It
would
thus
be
useful
have
genetic
tools
identify
manipulate
not
only
those
express
given
ligand,
but
also
that
specifically
co-express
pairs
ligands.
Here,
we
present
collection
split-Gal4
knock-in
lines
targeting
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 12, 2024
Abstract
Even
seemingly
homogeneous
populations
of
cells
can
express
phenotypic
diversity
in
response
to
environmental
changes.
Thus,
X-ray
irradiation
tissues
composed
diverse
cell
types
have
complex
outcomes.
We
used
single-cell
RNA-sequencing
study
the
effects
radiation
on
Drosophila
wing
imaginal
disc,
a
relatively
simple
tissue
mostly
epithelial
cells.
Transcriptomic
clustering
collected
from
disc
generates
clusters
that
are
mainly
grouped
based
proximodistal
location.
To
quantify
heterogeneity
gene
expression
among
clusters,
we
adapted
metric
market
concentration,
Herfindahl-Hirschman
Index.
Genes
involved
DNA
damage
repair,
defense
against
reactive
oxygen
species,
cycle
progression,
and
apoptosis
expressed
uniformly.
In
contrast,
genes
encoding
subset
ligands,
notably
cytokines
activate
JAK/STAT
pathway,
some
transcription
factors
including
Ets21C
,
previously
implicated
regeneration,
several
signaling
proteins
more
regionally.
Though
radiation-responsive
factor
p53
is
uniformly
regionally-induced
still
require
function,
indicating
regional
radiation-induced
combine
regulate
their
expression.
also
examined
within
regions
using
approach
A
subpopulation
cells,
characterized
by
high
levels
tribbles
expression,
amplified
irradiated
discs.
Remarkably,
this
accounts
for
considerable
fraction
cellular
responses
non-uniform
even
regions.
both
inter-regional
intra-regional
important
features
radiation.
Abrams
et
al.
report
that
a
simple
dietary
supplement
is
sufficient
to
induce
appendage
regeneration
in
jellyfish,
fruit
flies,
and
mice
(Abrams
al.,
2021).
This
conclusion
surprising
because
it
was
previously
thought
flies
lack
the
capacity
for
after
injury.
We
replicated
Drosophila
experiments
of
but
did
not
observe
any
instances
leg
regeneration.
also
conclude
"white
blob"
observed
at
amputation
site
by
consists
bacteria
regenerated
tissue.
Genes to Cells,
Journal Year:
2023,
Volume and Issue:
28(12), P. 857 - 867
Published: Oct. 10, 2023
Drosophila
imaginal
disc
cells
can
change
their
identity
under
stress
conditions
through
transdetermination
(TD).
Research
on
TD
help
elucidate
the
in
vivo
process
of
cell
fate
conversion.
We
previously
showed
that
overexpression
winged
eye
(wge)
induces
eye-to-wing
and
an
insulin-like
peptide,
Dilp8,
is
then
highly
expressed
disc.
Although
Dilp8
known
to
mediate
systemic
developmental
delay
via
Lgr3
receptor,
its
role
remains
unknown.
This
study
specific
do
not
express
or
wing
markers
during
Wge-mediated
loss
impairs
transition.
Thus,
plays
a
pivotal
conversion
wge
overexpression.
Furthermore,
we
found
instead
Lgr3,
another
candidate
Drl,
involved
acts
locally
cells.
propose
model
which
Dilp8-Drl
signaling
organizes
TD.