bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 4, 2024
Abstract
Ligands
of
the
TGF-β/BMP
superfamily
are
critically
involved
in
regulation
growth,
patterning
and
organogenesis
can
act
as
long-range
morphogens.
Essential
for
understanding
signaling
dynamics
tools
that
allow
monitoring
manipulating
pathway
components
expressed
at
physiological
levels
endogenous
spatiotemporal
patterns.
We
used
genome
engineering
to
generate
a
comprehensive
library
endogenously
epitope-or
fluorescently-tagged
versions
receptors,
co-receptors,
transcription
factors
key
feedback
regulators
Drosophila
BMP
Activin
pathways.
demonstrate
generated
alleles
biologically
active
be
utilized
assessing
tissue
subcellular
distribution
corresponding
proteins.
Further,
we
show
genomic
platforms
locus
structure-function
cis
-regulatory
analyses.
Finally,
present
complementary
set
protein
binder-based
tools,
which
visualization
well
manipulation
stability
localization
epitope-tagged
proteins,
providing
new
analysis
beyond.
Stem Cell Research & Therapy,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Feb. 7, 2025
Osteoporosis
(OP),
characterized
by
reduced
bone
mass
and
mineral
density,
is
a
global
metabolic
disorder
that
severely
impacts
the
quality
of
life
in
affected
individuals.
Although
current
pharmacological
treatments
are
effective,
their
long-term
use
often
associated
with
adverse
effects,
highlighting
need
for
safer,
more
sustainable
therapeutic
strategies.
This
study
investigates
pro-osteogenic
anti-resorptive
potential
secretome
from
Smurf1-silenced
mesenchymal
stem
cells
(MSCs)
as
promising
cell-free
therapy
regeneration.
Conditioned
media
(CM)
rat
(rCM-Smur1)
human
MSCs
(hCM-Smurf1)
was
collected
analyzed.
Pro-osteogenic
assessed
measuring
vitro
mineralization
cultures.
In
vivo,
studies
were
conducted
using
ectopic
formation
model
post-menopausal
osteoporotic
mouse
model.
Additionally,
primary
preconditioned
hCM-Smurf1,
osteogenic
capacity
compared
to
induced
BMP2
treatment.
Ex
explants
treated
hCM-Smurf1
assess
effects.
Proteomic
analysis
soluble
vesicular
CM
fractions
identified
key
proteins
involved
significantly
enhanced
vivo.
Preconditioning
increases
mineralization,
levels
comparable
those
achieved
ex
vivo
cultures,
treatment
RANKL
expression
without
affecting
OPG
levels,
indicating
an
effect.
increased
model,
its
local
administration
trabecular
loss
50%
after
single
within
just
four
weeks.
revealed
both
enriched
essential
ossification
extracellular
matrix
organization,
enhancing
differentiation.
The
MSCs'
shows
potent
reducing
loss.
provides
compelling
evidence
MSC-derived
non-toxic
targeted
osteoporosis.
These
findings
warrant
further
clinical
trials
validate
efficacy
safety.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 28, 2024
Abstract
BMP
signaling
patterns
secondary
body
axes
throughout
Bilateria
and,
strikingly,
in
the
bilaterally
symmetric
corals
and
sea
anemones
–
members
of
bilaterian
sister
clade
Cnidaria.
It
has
been
suggested
that
secondary,
“directive”
axis
anemone
Nematostella
vectensis
requires
Chordin-mediated
“shuttling”
ligands,
like
Drosophila
or
frog,
however,
an
alternative
“local
inhibition”
model
is
also
possible.
To
choose
between
these
two
options,
we
generated
localized
Chordin
sources
morphant
background
showed
presence
ligands
,
mobile
necessary
sufficient
to
establish
a
peak
at
side
embryo
opposing
source.
In
contrast,
membrane-tethered
Chordin-CD2
promotes
weak
within
These
results
provide
first
mechanistic
evidence
for
shuttling
cnidarian
suggest
may
have
functional
cnidarian-bilaterian
ancestor.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 11, 2024
Abstract
The
syncytial
mammalian
muscle
fiber
contains
a
heterogeneous
population
of
(myo)nuclei.
At
the
neuromuscular
junction
(NMJ),
myonuclei
have
specialized
positioning
and
gene
expression.
However,
it
remains
unclear
how
are
recruited
what
regulates
myonuclear
output
at
NMJ.
Here,
we
identify
specific
properties
located
near
Drosophila
larval
These
synaptic
increased
size
in
relation
to
their
surrounding
cytoplasmic
domain
(scaling),
DNA
content
(ploidy),
levels
transcription
factor
pMad,
readout
for
BMP
signaling
activity.
Our
genetic
manipulations
show
local
affects
size,
nuclear
ploidy,
NMJ
function.
In
support,
RNA
sequencing
analysis
reveals
that
pMad
genes
involved
growth,
ploidy
(i.e.,
E2f1
),
neurotransmission.
data
suggest
instructs
then
positively
shapes
synapse.
This
study
deepens
our
understanding
heterogeneity
supports
demands
fine
tune
cellular
function
Summary
(NMJ)
is
well
characterized
synapse,
yet
postsynaptic
contributions
allow
synapse
not
understood.
by
von
Saucken
et
al
.
uses
define
(myo)nuclei
determine
these
properties.
The Journal of Cell Biology,
Journal Year:
2024,
Volume and Issue:
224(1)
Published: Oct. 30, 2024
The
syncytial
mammalian
muscle
fiber
contains
a
heterogeneous
population
of
(myo)nuclei.
At
the
neuromuscular
junction
(NMJ),
myonuclei
have
specialized
positioning
and
gene
expression.
However,
it
remains
unclear
how
are
recruited
what
regulates
myonuclear
output
at
NMJ.
Here,
we
identify
specific
properties
located
near
Drosophila
larval
These
synaptic
increased
size
in
relation
to
their
surrounding
cytoplasmic
domain
(size
scaling),
DNA
content
(ploidy),
levels
transcription
factor
pMad,
readout
for
BMP
signaling
activity.
Our
genetic
manipulations
show
that
local
affects
size,
nuclear
ploidy,
NMJ
function.
In
support,
RNA
sequencing
analysis
reveals
pMad
genes
involved
growth,
ploidy
(i.e.,
E2f1),
neurotransmission.
data
suggest
instructs
positively
shapes
synapse.
This
study
deepens
our
understanding
heterogeneity
supports
demands
fine
tune
cellular
function
Development,
Journal Year:
2024,
Volume and Issue:
151(22)
Published: Nov. 4, 2024
Ligands
of
the
TGF-β/BMP
superfamily
are
crucially
involved
in
regulation
growth,
patterning
and
organogenesis
can
act
as
long-range
morphogens.
Essential
for
understanding
signaling
dynamics
tools
that
allow
monitoring
manipulating
pathway
components
at
physiological
expression
levels
endogenous
spatiotemporal
patterns.
We
used
genome
engineering
to
generate
a
comprehensive
library
endogenously
epitope-
or
fluorescent-tagged
versions
receptors,
co-receptors,
transcription
factors
key
feedback
regulators
Drosophila
BMP
Activin
pathways.
demonstrate
generated
alleles
biologically
active
be
assessing
tissue
subcellular
distribution
corresponding
proteins.
Furthermore,
we
show
genomic
platforms
locus
structure-function
cis-regulatory
analyses.
Finally,
present
complementary
set
protein
binder-based
tools,
which
visualization
well
manipulation
stability
localization
epitope-tagged
proteins,
providing
new
analysis
beyond.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 15, 2024
Abstract
Several
intercellular
signalling
pathways
(namely
wingless
-
Wnt,
Hedgehog
Hh,
and
Bone
Morphogenetic
Protein
BMP)
are
used
repeatedly
in
animals
throughout
development
evolution,
also
frequent
targets
for
disease-associated
disruptions.
We
have
previously
shown
that
the
major
transcriptional
effectors
of
β-catenin-dependent
Wnt
signalling,
TCF/LEF
proteins,
contrast
to
other
pathway
components,
a
higher
gene
number
isoform
diversity
vertebrates
versus
invertebrates,
but
this
increased
has
only
been
poorly
quantified.
Considering
correlates
with
organism
complexity,
any
increase
is
likely
made
significant
contribution
vertebrate
evolution.
Using
de
novo
long-read
transcriptomes,
we
compared
per
chordates
Ciona
intestinalis,
Lampetra
planeri
Xenopus
tropicalis
,
thus
encompassing
invertebrate
sister
group
vertebrates,
as
well
cyclostome
gnathostome
vertebrate.
Our
results
implicate
an
transcription
factors
having
disproportionate
role
evolutionary
origin
diversification
vertebrates.
Journal of Neurochemistry,
Journal Year:
2024,
Volume and Issue:
169(1)
Published: Dec. 16, 2024
Abstract
Bone
morphogenetic
proteins
(BMPs),
regulators
of
bone
formation,
have
been
implicated
in
embryogenesis
and
morphogenesis
various
tissues
organs.
BMP
signaling
plays
a
role
the
formation
appropriate
synaptic
connections
development
normal
neural
circuits
brain.
However,
physiological
roles
postnatal
functions,
including
plasticity,
remain
largely
unknown.
Long‐term
depression
(LTD)
transmission
at
parallel
fiber
(PF)‐Purkinje
cell
(PC)
synapses
cerebellum
has
suggested
one
neuronal
mechanism
underlying
cerebellar
functions.
Here,
we
explored
contribution
to
induction
mouse
LTD.
We
first
demonstrated
that
BMP2
and/or
4
were
expressed
GABAergic
neurons
mature
networks
cortex.
mRNA
encoding
receptor
type
1B
(
Bmpr1b
)
was
PC
layer.
Exogenous
application
noggin,
ligand
inhibitor,
suppressed
LTD
by
conjunctive
stimulation,
which
caused
under
control
condition.
Furthermore,
mice
deficient
BMPR1B
exhibited
attenuation
extent
induction,
whereas
they
showed
excitatory
PF‐PC
synapses.
These
results
suggest
after
development,
activated
BMPR1B,
layer,
crucial
facilitation
LTD,
leading
modulation
functions
behaviors.
image