Frontiers in Neuroscience,
Год журнала:
2022,
Номер
16
Опубликована: Ноя. 16, 2022
Radial
glia
is
a
cell
type
traditionally
associated
with
the
developing
nervous
system,
particularly
formation
of
cortical
layers
in
mammalian
brain.
Nonetheless,
some
these
cells,
or
closely
related
types,
called
radial
glia-like
cells
are
found
adult
central
system
structures,
functioning
as
neurogenic
progenitors
normal
homeostatic
maintenance
and
response
to
injury.
The
heterogeneity
nowadays
being
probed
molecular
tools,
primarily
by
expression
specific
genes
that
define
types.
Similar
markers
have
identified
non-vertebrate
organisms.
In
this
review,
we
focus
on
processes
during
homeostasis
We
highlight
our
results
using
model
echinoderm
Journal of genetics and genomics/Journal of Genetics and Genomics,
Год журнала:
2023,
Номер
50(9), С. 625 - 640
Опубликована: Март 27, 2023
The
ability
to
explore
life
kingdoms
is
largely
driven
by
innovations
and
breakthroughs
in
technology,
from
the
invention
of
microscope
350
years
ago
recent
emergence
single-cell
sequencing,
which
scientific
community
has
been
able
visualize
at
an
unprecedented
resolution.
Most
recently,
Spatially
Resolved
Transcriptomics
(SRT)
technologies
have
filled
gap
probing
spatial
or
even
three-dimensional
organization
molecular
foundation
behind
mysteries
life,
including
origin
different
cellular
populations
developed
totipotent
cells
human
diseases.
In
this
review,
we
introduce
progress
challenges
on
SRT
perspectives
bioinformatic
tools,
as
well
representative
applications.
With
currently
fast-moving
promising
results
early
adopted
research
projects,
can
foresee
bright
future
such
new
tools
understanding
most
profound
analytical
level.
Nucleic Acids Research,
Год журнала:
2023,
Номер
52(D1), С. D1053 - D1061
Опубликована: Ноя. 11, 2023
Abstract
Recent
technological
developments
in
spatial
transcriptomics
allow
researchers
to
measure
gene
expression
of
cells
and
their
locations
at
the
single-cell
level,
generating
detailed
biological
insight
into
processes.
A
comprehensive
database
could
facilitate
sharing
transcriptomic
data
streamline
acquisition
process
for
researchers.
Here,
we
present
Spatial
TranscriptOmics
DataBase
(STOmicsDB),
a
that
serves
as
one-stop
hub
transcriptomics.
STOmicsDB
integrates
218
manually
curated
datasets
representing
17
species.
We
annotated
cell
types,
identified
regions
genes,
performed
cell-cell
interaction
analysis
these
datasets.
features
user-friendly
interface
rapid
visualization
millions
cells.
To
further
reusability
interoperability
data,
developed
standards
archiving
constructed
system.
Additionally,
offer
distinctive
capability
customizing
dedicated
sub-databases
researchers,
assisting
them
visualizing
analyses.
believe
contribute
research
insights
field,
including
archiving,
sharing,
analysis.
is
freely
accessible
https://db.cngb.org/stomics/.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Май 11, 2023
Abstract
Single-cell
genomics
technologies
enable
multimodal
profiling
of
millions
cells
across
temporal
and
spatial
dimensions.
Experimental
limitations
prevent
the
measurement
all-encompassing
cellular
states
in
their
native
dynamics
or
tissue
niche.
Optimal
transport
theory
has
emerged
as
a
powerful
tool
to
overcome
such
constraints,
enabling
recovery
original
context.
However,
most
algorithmic
implementations
currently
available
have
not
kept
up
pace
with
increasing
dataset
complexity,
so
that
current
methods
are
unable
incorporate
information
scale
single-cell
atlases.
Here,
we
introduce
multi-omics
optimal
(moscot),
general
scalable
framework
for
applications
genomics,
supporting
multimodality
all
applications.
We
demonstrate
moscot’s
ability
efficiently
reconstruct
developmental
trajectories
1.7
million
mouse
embryos
20
time
points
identify
driver
genes
first
heart
field
formation.
The
moscot
formulation
can
be
used
dimensions
well:
To
this,
enrich
transcriptomics
datasets
by
mapping
from
profiles
liver
sample,
align
multiple
coronal
sections
brain.
then
present
moscot.spatiotemporal,
new
approach
leverages
gene
expression
uncover
spatiotemporal
embryogenesis.
Finally,
disentangle
lineage
relationships
novel
murine,
time-resolved
pancreas
development
using
paired
measurements
chromatin
accessibility,
finding
evidence
shared
ancestry
between
delta
epsilon
cells.
Moscot
is
an
easy-to-use,
open-source
python
package
extensive
documentation
at
https://moscot-tools.org
.
Signal Transduction and Targeted Therapy,
Год журнала:
2024,
Номер
9(1)
Опубликована: Авг. 7, 2024
Multicellular
organisms
are
composed
of
diverse
cell
types
that
must
coordinate
their
behaviors
through
communication.
Cell-cell
communication
(CCC)
is
essential
for
growth,
development,
differentiation,
tissue
and
organ
formation,
maintenance,
physiological
regulation.
Cells
communicate
direct
contact
or
at
a
distance
using
ligand-receptor
interactions.
So
cellular
encompasses
two
processes:
signal
conduction
generation
intercellular
transmission
signals,
transduction
reception
procession
signals.
Deciphering
networks
critical
understanding
metabolism.
First,
we
comprehensively
review
the
historical
milestones
in
CCC
studies,
followed
by
detailed
description
mechanisms
molecule
importance
main
signaling
pathways
they
mediate
maintaining
biological
functions.
Then
systematically
introduce
series
human
diseases
caused
abnormalities
progress
clinical
applications.
Finally,
summarize
various
methods
monitoring
interactions,
including
imaging,
proximity-based
chemical
labeling,
mechanical
force
analysis,
downstream
analysis
strategies,
single-cell
technologies.
These
aim
to
illustrate
how
functions
depend
on
these
interactions
complexity
regulatory
regulate
crucial
processes,
homeostasis,
immune
responses
diseases.
In
addition,
this
enhances
our
processes
occur
after
cell-cell
binding,
highlighting
its
application
discovering
new
therapeutic
targets
biomarkers
related
precision
medicine.
This
collective
provides
foundation
developing
targeted
drugs
personalized
treatments.
Abstract
Spatial
multi-omic
studies
have
emerged
as
a
promising
approach
to
comprehensively
analyze
cells
in
tissues,
enabling
the
joint
analysis
of
multiple
data
modalities
like
transcriptome,
epigenome,
proteome,
and
metabolome
parallel
or
even
same
tissue
section.
This
review
focuses
on
recent
advancements
spatial
multi-omics
technologies,
including
novel
computational
approaches.
We
discuss
low-resolution
high-resolution
methods
which
can
resolve
up
10,000
individual
molecules
at
subcellular
level.
By
applying
integrating
these
techniques,
researchers
recently
gained
valuable
insights
into
molecular
circuits
mechanisms
govern
cell
biology
along
cardiovascular
disease
spectrum.
provide
an
overview
current
approaches,
with
focus
integration
datasets,
highlighting
strengths
weaknesses
various
pipelines.
These
tools
play
crucial
role
analyzing
interpreting
facilitating
discovery
new
findings,
enhancing
translational
research.
Despite
nontrivial
challenges,
such
need
for
standardization
experimental
setups,
analysis,
improved
tools,
application
holds
tremendous
potential
revolutionizing
our
understanding
human
processes
identification
biomarkers
therapeutic
targets.
Exciting
opportunities
lie
ahead
field
will
likely
contribute
advancement
personalized
medicine
diseases.
Cell Reports,
Год журнала:
2024,
Номер
43(6), С. 114216 - 114216
Опубликована: Май 30, 2024
The
amyloid
plaque
niche
is
a
pivotal
hallmark
of
Alzheimer's
disease
(AD).
Here,
we
employ
two
high-resolution
spatial
transcriptomics
(ST)
platforms,
CosMx
and
Spatial
Enhanced
Resolution
Omics-sequencing
(Stereo-seq),
to
characterize
the
transcriptomic
alterations,
cellular
compositions,
signaling
perturbations
in
an
AD
mouse
model.
We
discover
heterogeneity
composition
niches,
marked
by
increase
microglial
accumulation.
profile
alterations
glial
cells
vicinity
plaques
conclude
that
response
consistent
across
different
brain
regions,
while
astrocytic
more
heterogeneous.
Meanwhile,
as
density
niches
increases,
astrocytes
acquire
neurotoxic
phenotype
play
key
role
inducing
GABAergic
decreasing
glutamatergic
hippocampal
neurons.
thus
show
accumulation
microglia
around
disrupts
signaling,
turn
imbalance
neuronal
synaptic
signaling.
Abstract
Single-cell
genomic
technologies
enable
the
multimodal
profiling
of
millions
cells
across
temporal
and
spatial
dimensions.
However,
experimental
limitations
hinder
comprehensive
measurement
under
native
dynamics
in
their
tissue
niche.
Optimal
transport
has
emerged
as
a
powerful
tool
to
address
these
constraints
facilitated
recovery
original
cellular
context
1–4
.
Yet,
most
optimal
applications
are
unable
incorporate
information
or
scale
single-cell
atlases.
Here
we
introduce
multi-omics
(moscot),
scalable
framework
for
genomics
that
supports
multimodality
all
applications.
We
demonstrate
capability
moscot
efficiently
reconstruct
developmental
trajectories
1.7
million
from
mouse
embryos
20
time
points.
To
illustrate
space,
enrich
transcriptomic
datasets
by
mapping
profiles
liver
sample
align
multiple
coronal
sections
brain.
present
moscot.spatiotemporal,
an
approach
leverages
gene-expression
data
both
dimensions
uncover
spatiotemporal
embryogenesis.
also
resolve
endocrine-lineage
relationships
delta
epsilon
previously
unpublished
mouse,
time-resolved
pancreas
development
dataset
using
paired
measurements
gene
expression
chromatin
accessibility.
Our
findings
confirmed
through
validation
NEUROD2
regulator
progenitor
model
human
induced
pluripotent
stem
cell
islet
differentiation.
Moscot
is
available
open-source
software,
accompanied
extensive
documentation.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 26, 2025
An
essential
task
in
spatial
transcriptomics
is
identifying
spatially
variable
genes
(SVGs).
Here,
we
present
Celina,
a
statistical
method
for
systematically
detecting
cell
type-specific
SVGs
(ct-SVGs)—a
subset
of
exhibiting
distinct
expression
patterns
within
specific
types.
Celina
utilizes
varying
coefficient
model
to
accurately
capture
each
gene's
pattern
relation
the
distribution
types
across
tissue
locations,
ensuring
effective
type
I
error
control
and
high
power.
proves
powerful
compared
existing
methods
single-cell
resolution
stands
as
only
solution
spot-resolution
transcriptomics.
Applied
five
real
datasets,
uncovers
ct-SVGs
associated
with
tumor
progression
patient
survival
lung
cancer,
identifies
metagenes
unique
linked
proliferation
immune
response
kidney
detects
preferentially
expressed
near
amyloid-β
plaques
an
Alzheimer's
model.
The
authors
develop
detect
(ct-SVGs)
These
exhibit
types,
offering
insights
into
transcriptomic
mechanism
underlying
cellular
heterogeneity.