Cell Genomics,
Journal Year:
2024,
Volume and Issue:
4(6), P. 100581 - 100581
Published: May 31, 2024
Cell
atlases
serve
as
vital
references
for
automating
cell
labeling
in
new
samples,
yet
existing
classification
algorithms
struggle
with
accuracy.
Here
we
introduce
SIMS
(scalable,
interpretable
machine
learning
single
cell),
a
low-code
data-efficient
pipeline
single-cell
RNA
classification.
We
benchmark
against
datasets
from
different
tissues
and
species.
demonstrate
SIMS's
efficacy
classifying
cells
the
brain,
achieving
high
accuracy
even
small
training
sets
(<3,500
cells)
across
samples.
accurately
predicts
neuronal
subtypes
developing
shedding
light
on
genetic
changes
during
differentiation
postmitotic
fate
refinement.
Finally,
apply
to
of
cortical
organoids
predict
identities
uncover
variations
between
lines.
identifies
cell-line
differences
misannotated
lineages
human
derived
pluripotent
stem
Altogether,
show
that
is
versatile
robust
tool
cell-type
datasets.
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.
Cell,
Journal Year:
2024,
Volume and Issue:
187(3), P. 712 - 732.e38
Published: Jan. 8, 2024
Human
brain
development
involves
an
orchestrated,
massive
neural
progenitor
expansion
while
a
multi-cellular
tissue
architecture
is
established.
Continuously
expanding
organoids
can
be
grown
directly
from
multiple
somatic
tissues,
yet
to
date,
solely
established
pluripotent
stem
cells.
Here,
we
show
that
healthy
human
fetal
in
vitro
self-organizes
into
(FeBOs),
phenocopying
aspects
of
vivo
cellular
heterogeneity
and
complex
organization.
FeBOs
expanded
over
long
time
periods.
FeBO
growth
requires
maintenance
integrity,
which
ensures
production
tissue-like
extracellular
matrix
(ECM)
niche,
ultimately
endowing
expansion.
lines
derived
different
areas
the
central
nervous
system
(CNS),
including
dorsal
ventral
forebrain,
preserve
their
regional
identity
allow
probe
positional
identity.
Using
CRISPR-Cas9,
showcase
generation
syngeneic
mutant
for
study
cancer.
Taken
together,
constitute
complementary
CNS
organoid
platform.
Nature,
Journal Year:
2024,
Volume and Issue:
635(8039), P. 690 - 698
Published: Nov. 20, 2024
Human
neural
organoids,
generated
from
pluripotent
stem
cells
in
vitro,
are
useful
tools
to
study
human
brain
development,
evolution
and
disease.
However,
it
is
unclear
which
parts
of
the
covered
by
existing
protocols,
has
been
difficult
quantitatively
assess
organoid
variation
fidelity.
Here
we
integrate
36
single-cell
transcriptomic
datasets
spanning
26
protocols
into
one
integrated
cell
atlas
totalling
more
than
1.7
million
cells1–26.
Mapping
developing
references27–30
shows
primary
types
states
that
have
estimates
similarity
between
counterparts
across
protocols.
We
provide
a
programmatic
interface
browse
query
new
datasets,
showcase
power
annotate
evaluate
Finally,
show
can
be
used
as
diverse
control
cohort
compare
models
disease,
identifying
genes
pathways
may
underlie
pathological
mechanisms
with
models.
The
will
fidelity,
characterize
perturbed
diseased
facilitate
protocol
development.
A
integrating
counterparts,
showing
potential
fidelity
Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(4), P. 114031 - 114031
Published: April 1, 2024
Outer
radial
glia
(oRG)
emerge
as
cortical
progenitor
cells
that
support
the
development
of
an
enlarged
outer
subventricular
zone
(oSVZ)
and
expansion
neocortex.
The
in
vitro
generation
oRG
is
essential
to
investigate
underlying
mechanisms
human
neocortical
expansion.
By
activating
STAT3
signaling
pathway
using
leukemia
inhibitory
factor
(LIF),
which
not
expressed
guided
organoids,
we
define
a
organoid
differentiation
method
from
pluripotent
stem
(hPSCs)
recapitulates
pool
into
oSVZ.
oSVZ
comprises
expressing
specific
markers
such
GFAP,
LIFR,
HOPX,
closely
matching
fetal
oRG.
Finally,
incorporating
neural
crest-derived
LIF-producing
pericytes
organoids
effects
LIF
treatment.
These
data
indicate
increasing
cellular
complexity
microenvironment
promotes
emergence
supports
platform
study
hPSC-derived
brain
routinely.
Nature Microbiology,
Journal Year:
2023,
Volume and Issue:
8(7), P. 1252 - 1266
Published: June 22, 2023
Abstract
Herpes
simplex
encephalitis
is
a
life-threatening
disease
of
the
central
nervous
system
caused
by
herpes
viruses
(HSVs).
Following
standard
care
with
antiviral
acyclovir
treatment,
most
patients
still
experience
various
neurological
sequelae.
Here
we
characterize
HSV-1
infection
human
brain
organoids
combining
single-cell
RNA
sequencing,
electrophysiology
and
immunostaining.
We
observed
strong
perturbations
tissue
integrity,
neuronal
function
cellular
transcriptomes.
Under
treatment
viral
replication
was
stopped,
but
did
not
prevent
HSV-1-driven
defects
such
as
damage
processes
neuroepithelium.
Unbiased
analysis
pathways
deregulated
upon
revealed
tumour
necrosis
factor
activation
potential
causal
factor.
Combination
anti-inflammatory
drugs
necrostatin-1
or
bardoxolone
methyl
prevented
damages
infection,
indicating
that
tuning
inflammatory
response
in
acute
may
improve
current
therapeutic
strategies.
Cell stem cell,
Journal Year:
2023,
Volume and Issue:
30(10), P. 1382 - 1391.e5
Published: Sept. 5, 2023
Radial
glial
(RG)
development
is
essential
for
cerebral
cortex
growth
and
organization.
In
humans,
the
outer
radial
glia
(oRG)
subtype
expanded
gives
rise
to
diverse
neurons
glia.
However,
mechanisms
regulating
oRG
differentiation
are
unclear.
cells
express
leukemia-inhibitory
factor
(LIF)
receptors
during
neurogenesis,
consistent
with
a
role
in
stem
cell
self-renewal,
LIF
perturbation
impacts
proliferation
cortical
tissue
organoids.
Surprisingly,
treatment
also
increases
production
of
inhibitory
interneurons
(INs)
cultures.
Comparative
transcriptomic
analysis
identifies
that
enhanced
IN
population
resembles
INs
produced
caudal
ganglionic
eminence.
To
evaluate
whether
could
arise
from
oRGs,
we
isolated
primary
cultured
them
LIF.
We
observed
an
increase
abundance
following
treatment.
Our
observations
suggest
signaling
regulates
capacity
generate
INs.