Deletion of endothelial IGFBP5 protects against ischaemic hindlimb injury by promoting angiogenesis
Fei Song,
No information about this author
Yu Hu,
No information about this author
Yi‐Xiang Hong
No information about this author
et al.
Clinical and Translational Medicine,
Journal Year:
2024,
Volume and Issue:
14(6)
Published: June 1, 2024
Abstract
Background
Angiogenesis
is
critical
for
forming
new
blood
vessels
from
antedating
vascular
vessels.
The
endothelium
essential
angiogenesis,
remodelling
and
minimisation
of
functional
deficits
following
ischaemia.
insulin‐like
growth
factor
(IGF)
family
crucial
angiogenesis.
Insulin‐like
factor‐binding
protein
5
(IGFBP5),
a
binding
the
IGF
family,
may
have
places
in
but
mechanisms
are
not
yet
completely
understood.
We
sought
to
probe
whether
IGFBP5
involved
pathological
angiogenesis
uncover
molecular
behind
it.
Methods
results
expression
was
elevated
gastrocnemius
muscle
limb
ischaemia
patients
hindlimb
ischaemic
(HLI)
mice
hypoxic
human
umbilical
vein
endothelial
cells
(HUVECs).
In
vivo,
loss
(IGFBP5
EKO
)
facilitated
recovery
vessel
function
necrosis
HLI
mice.
Moreover,
skin
damage
healing
aortic
ring
sprouting
were
faster
than
control
vitro,
genetic
inhibition
HUVECs
significantly
promoted
tube
formation,
cell
proliferation
migration
by
mediating
phosphorylation
IGF1R,
Erk1/2
Akt.
Intriguingly,
pharmacological
treatment
with
recombinant
ensued
contrasting
effect
on
inhibiting
IGF1
or
IGF2
function.
Genetic
cellular
oxygen
consumption
extracellular
acidification
rates
via
IGF1R‐mediated
glycolytic
adenosine
triphosphate
(ATP)
metabolism.
Mechanistically,
exerted
its
role
E3
ubiquitin
ligase
Von
Hippel‐Lindau
(VHL)‐regulated
HIF1α
stability.
Furthermore,
knockdown
IGF1R
partially
abolished
reformative
post‐HLI.
Conclusion
Our
findings
demonstrate
that
ablation
enhances
promoting
ATP
metabolism
stabilising
HIF1α,
implying
novel
therapeutic
target
treating
abnormal
angiogenesis‐related
conditions.
Language: Английский
Perception of psychosocial burden in mothers of children with rare pediatric neurological diseases
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 21, 2025
Language: Английский
Molecular and cellular processes underlying Unverricht-Lundborg disease—prospects for early interventions and a cure
Exploration of neuroscience,
Journal Year:
2024,
Volume and Issue:
3(4), P. 295 - 308
Published: July 18, 2024
A
short
overview
of
the
main
features
progressive
myoclonus
epilepsies
(PMEs),
such
as
Lafora
disease
(LD),
neuronal
ceroid
lipofuscinoses
(NCLs),
and
epilepsy
with
ragged-red
fibers
(MERRF)
is
given.
The
stress
this
review
paper
put
on
one
PME’s,
Unverricht-Lundborg
(ULD)—EPM1,
which
caused
by
mutations
in
human
cystatin
B
gene
(stefin
an
alternative
protein’s
name).
However,
different
other
genes/proteins
were
found
mutated
patients
presenting
EPM1-like
symptoms.
By
understanding
their
function
pathophysiological
roles,
further
insights
into
underlying
processes
EPM1
can
be
obtained.
On
a
broader
scale,
common
mechanisms
exist
between
ULD,
LD
NCLs,
as,
reactive
glia,
synaptic
remodeling,
hyperexcitability,
impairements
lysosomal/endocytosis
system,
cytoskeletal
functions,
mitochondria.
Oxidative
also
common.
molecular
cellular
processes,
early
interventions,
better
therapies
eventually,
using
modern
stem
cell,
editing
or
replacement
methods,
cure
expected.
Language: Английский
Multimodal single-cell profiling reveals neuronal vulnerability and pathological cell states in focal cortical dysplasia
Isabella C. Galvão,
No information about this author
Manuela Lemoine,
No information about this author
Lauana A. Messias
No information about this author
et al.
iScience,
Journal Year:
2024,
Volume and Issue:
27(12), P. 111337 - 111337
Published: Nov. 6, 2024
Focal
cortical
dysplasia
(FCD)
is
a
neurodevelopmental
condition
characterized
by
malformations
of
the
cerebral
cortex
that
often
cause
drug-resistant
epilepsy.
In
this
study,
we
performed
multi-omics
single-nuclei
profiling
to
map
chromatin
accessibility
and
transcriptome
landscapes
FCD
type
II,
generating
comprehensive
multimodal
dataset
comprising
61,525
cells
from
11
clinical
samples
lesions
controls.
Our
findings
revealed
profound
chromatin,
transcriptomic,
cellular
alterations
affecting
neuronal
glial
in
lesions,
including
selective
loss
upper-layer
excitatory
neurons,
significant
expansion
oligodendrocytes
immature
astrocytic
populations,
distinct
subpopulation
harboring
dysmorphic
neurons.
Furthermore,
uncovered
activated
microglia
subsets,
particularly
IIb
cases.
This
study
unveils
cell
states
driving
development
epileptogenicity,
enhancing
our
understanding
offering
directions
for
targeted
therapy
development.
Language: Английский
Multimodal single-cell sequencing of the human cortex reveals neuronal vulnerability and activated glial cell states in focal cortical dysplasia
Isabella C. Galvão,
No information about this author
Manuela Lemoine,
No information about this author
Lauana A. Messias
No information about this author
et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 29, 2024
ABSTRACT
Focal
Cortical
Dysplasia
(FCD)
is
a
neurodevelopmental
condition
characterized
by
malformations
of
the
cerebral
cortex
that
often
cause
drug-resistant
epilepsy.
In
this
study,
we
performed
multi-omics
single-cell
profiling
to
map
chromatin
accessibility
and
transcriptome
landscapes
FCD
type
II,
generating
comprehensive
multimodal
dataset
comprising
61,525
cells
from
11
clinical
samples
lesions
controls.
Our
findings
revealed
profound
chromatin,
transcriptomic,
cellular
alterations
affecting
neuronal
glial
in
lesions,
including
selective
loss
upper-layer
excitatory
neurons,
significant
expansion
oligodendrocytes
immature
astrocytic
populations,
unique
subpopulation
harboring
dysmorphic
neurons.
Furthermore,
uncovered
activated
microglia
subsets,
particularly
IIb
cases.
This
study
unveils
cell
states
driving
development
epileptogenicity,
enhancing
our
understanding
offering
new
directions
for
targeted
therapy
development.
Language: Английский
Exploring Overlap Syndromes: An Atypical Case of Multiple Sclerosis With Anti-Sjogren’s Syndrome Type B Antibody
Rebecca L Shakour,
No information about this author
Oriana Tascione,
No information about this author
Nathan Carberry
No information about this author
et al.
Journal of Medical Cases,
Journal Year:
2024,
Volume and Issue:
15(12), P. 387 - 395
Published: Nov. 11, 2024
Evaluating
patients
with
symptoms
suggestive
of
demyelinating
disease
such
as
multiple
sclerosis
(MS)
is
common
in
both
the
inpatient
and
outpatient
setting
but
may
be
difficult
if
atypical
neurological
are
present.
In
this
case,
a
39-year-old
female
presented
new
onset
weakness
paresthesias.
The
patient
reported
3
weeks
progressively
worsening
left
face
hemibody
numbness,
along
gait
abnormality.
She
was
found
to
have
absent
lower
extremity
reflexes,
unexpected
imaging
findings,
positive
anti-Sjogren's
syndrome
type
B
(SSB)
antibody
despite
lacking
typical
sicca
associated
Sjogren's
(SS).
This
case
report
underscores
diagnostic
complexity
overlapping
MS
SS,
highlighting
need
for
comprehensive
differential
diagnosis
when
It
also
emphasizes
importance
considering
autoimmune
overlap
syndromes
cases,
co-occurrence
these
conditions
can
significantly
impact
treatment
strategies,
requiring
multidisciplinary
approach
optimal
care.
Language: Английский