Gut,
Journal Year:
2023,
Volume and Issue:
72(6), P. 1211 - 1219
Published: March 30, 2023
Recent
advances
in
single-cell
RNA
sequencing
and
bioinformatics
have
drastically
increased
our
ability
to
interrogate
the
cellular
composition
of
traditionally
difficult
study
organs,
such
as
pancreas.
With
advent
these
technologies
approaches,
field
has
grown,
just
a
few
years,
from
profiling
pancreas
disease
states
identifying
molecular
mechanisms
therapy
resistance
pancreatic
ductal
adenocarcinoma,
particularly
deadly
cancer.
Single-cell
transcriptomics
related
spatial
approaches
identified
previously
undescribed
epithelial
stromal
cell
types
states,
how
populations
change
with
progression,
potential
action
which
will
serve
basis
for
designing
new
therapeutic
strategies.
Here,
we
review
recent
literature
on
transcriptomic
changed
understanding
biology
progression.
Nature,
Journal Year:
2021,
Volume and Issue:
598(7879), P. 159 - 166
Published: Oct. 6, 2021
An
essential
step
toward
understanding
brain
function
is
to
establish
a
structural
framework
with
cellular
resolution
on
which
multi-scale
datasets
spanning
molecules,
cells,
circuits
and
systems
can
be
integrated
interpreted
Journal of genetics and genomics/Journal of Genetics and Genomics,
Journal Year:
2023,
Volume and Issue:
50(9), P. 625 - 640
Published: March 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.
The
central
nucleus
of
the
amygdala
(CEA)
is
a
brain
region
that
integrates
external
and
internal
sensory
information
executes
innate
adaptive
behaviors
through
distinct
output
pathways.
Despite
its
complex
functions,
diversity
molecularly
defined
neuronal
types
in
CEA
their
contributions
to
major
axonal
projection
targets
have
not
been
examined
systematically.
Here,
we
performed
single-cell
RNA-sequencing
(scRNA-seq)
classify
cell
identified
marker
genes
map
location
these
using
expansion-assisted
iterative
fluorescence
situ
hybridization
(EASI-FISH).
We
developed
new
methods
integrate
EASI-FISH
with
5-plex
retrograde
labeling
determine
spatial,
morphological,
connectivity
properties
~30,000
neurons.
Our
study
revealed
spatiomolecular
organization
CEA,
medial
lateral
associated
families.
also
found
long-range
axon
network
from
where
target
regions
receive
inputs
multiple
types.
Axon
collateralization
was
primarily
among
projections
hindbrain
targets,
which
are
forebrain
projections.
This
resource
reports
gene
combinations
for
axon-projection
types,
will
be
useful
selective
interrogation
populations
diverse
functions
CEA.
Nature,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 24, 2024
The
cerebral
cortex
is
composed
of
neuronal
types
with
diverse
gene
expression
that
are
organized
into
specialized
cortical
areas.
These
areas,
each
characteristic
cytoarchitecture1,2,
connectivity3,4
and
activity5,6,
wired
modular
networks3,4,7.
However,
it
remains
unclear
whether
these
spatial
organizations
reflected
in
transcriptomic
signatures
how
such
established
development.
Here
we
used
BARseq,
a
high-throughput
situ
sequencing
technique,
to
interrogate
the
104
cell-type
marker
genes
10.3
million
cells,
including
4,194,658
neurons
over
nine
mouse
forebrain
hemispheres,
at
cellular
resolution.
De
novo
clustering
single
revealed
consistent
previous
single-cell
RNA
studies8,9.
composition
highly
predictive
area
identity.
Moreover,
areas
similar
compositions
types,
which
defined
as
modules,
overlap
connected,
suggesting
same
organization
both
connectivity.
To
explore
profiles
depend
on
development,
assessed
distributions
after
neonatal
binocular
enucleation.
Notably,
enucleation
caused
shifting
compositional
visual
towards
neighbouring
within
module,
peripheral
inputs
sharpen
distinct
identities
modules.
Enabled
by
high
throughput,
low
cost
reproducibility
our
study
provides
proof
principle
for
use
large-scale
reveal
brain-wide
molecular
architecture
understand
its
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(16)
Published: April 7, 2023
Spatial
transcriptomics
is
a
newly
emerging
field
that
enables
high-throughput
investigation
of
the
spatial
localization
transcripts
and
related
analyses
in
various
applications
for
biological
systems.
By
transitioning
from
conventional
studies
to
"in
situ"
biology,
can
provide
transcriptome-scale
information.
Currently,
ability
simultaneously
characterize
gene
expression
profiles
cells
relevant
cellular
environment
paradigm
shift
studies.
In
this
review,
recent
progress
its
neuroscience
cancer
are
highlighted.
Technical
aspects
existing
technologies
future
directions
new
developments
(as
March
2023),
computational
analysis
transcriptome
data,
application
notes
studies,
discussions
regarding
multi-omics
their
expanding
roles
biomedical
emphasized.
Nature Biotechnology,
Journal Year:
2023,
Volume and Issue:
41(9), P. 1272 - 1286
Published: Jan. 26, 2023
A
barrier
to
advancing
engineered
adeno-associated
viral
vectors
(AAVs)
for
precision
access
cell
subtypes
is
a
lack
of
high-throughput,
high-resolution
assays
characterize
in
vivo
transduction
profiles.
In
this
study,
we
developed
an
ultrasensitive,
sequential
fluorescence
situ
hybridization
(USeqFISH)
method
spatial
transcriptomic
profiling
endogenous
and
RNA
with
short
barcode
intact
tissue
volumes
by
integrating
hydrogel-based
clearing,
enhanced
signal
amplification
multiplexing
using
labeling.
Using
USeqFISH,
investigated
the
subtype
tropisms
across
mouse
brain
regions
six
systemic
AAVs,
including
AAV-PHP.AX,
new
variant
that
transduces
robustly
efficiently
neurons
astrocytes.
Here
reveal
distinct
biases
each
AAV
variant,
bias
AAV-PHP.N
toward
excitatory
neurons.
USeqFISH
also
enables
pooled
regulatory
cargos,
as
show
13-variant
pool
microRNA
target
sites
genomes.
Lastly,
demonstrate
potential
applications
multimodal
single-cell
analysis
non-human
primates.