Stem Cell Reviews and Reports,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 18, 2024
Abstract
Background
Currently,
most
inherited
retinal
diseases
lack
curative
interventions,
and
available
treatment
modalities
are
constrained
to
symptomatic
approaches.
Retinal
organoid
technology
has
emerged
as
a
method
for
treating
diseases,
with
growing
academic
interest
in
recent
years.
The
purpose
of
this
review
was
systematically
organize
the
current
protocols
generating
organoids
using
induced
pluripotent
stem
cells
from
patients
disease
investigate
application
research.
Methods
Data
were
collected
PubMed,
Scopus,
Web
Science
databases
keyword
search.
main
search
term
used
“retinal
organoid,”
accompanied
by
secondary
keywords
such
“optic
cup,”
“three-dimensional,”
“self-organizing.”
final
conducted
on
October
2,
2024.
Results
Of
2,129
studies
retrieved,
130
included
qualitative
synthesis.
generation
research
use
five
major
approaches,
categorized
into
3D
combination
2D/3D
implemented
modifications.
Disease
phenotypes
have
been
successfully
reproduced
via
individuals
facilitating
progression
novel
therapeutic
developments.
Cells
obtained
cell
therapy,
progress
toward
their
potential
integration
clinical
practice
is
underway.
Considering
applications,
shown
promise
across
various
domains.
Conclusion
In
systematic
review,
we
organized
diseases.
applications
including
modeling,
screening
therapies,
replacement
therapy.
Further
advancements
would
make
clinically
significant
tool
Graphical
Frontiers in Cell and Developmental Biology,
Journal Year:
2025,
Volume and Issue:
13
Published: Jan. 27, 2025
Rare
diseases
affect
a
small
percentage
of
an
individual
country’s
population;
however,
with
over
7,000
in
total,
rare
represent
significant
disease
burden
impacting
up
to
10%
the
world’s
population.
Despite
this,
there
are
no
approved
treatments
for
almost
95%
diseases,
and
existing
cost-intensive
patients.
More
than
70%
genetic
nature,
patient-specific
mutations.
This
calls
need
have
personalised
preclinical
models
that
can
lead
effective,
speedy,
affordable
therapeutic
options.
Complex
vitro
(CIVMs),
including
those
using
induced
pluripotent
stem
cells
(iPSCs),
organoids,
organs-on-chips
emerging
as
powerful
human-based
pre-clinical
systems
capacity
provide
efficacy
data
enabling
drugs
move
into
clinical
trials.
In
this
narrative
review,
we
discuss
how
CIVMs
providing
insights
biomedical
research
on
diseases.
We
also
these
being
used
trials
develop
Finally,
propose
recommendations
human
relevant
could
be
leveraged
increase
translatability
basic,
applied
nonclinical
outcomes
field
therapeutics
developed
well
middle-and
low-income
countries.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(7), P. 3263 - 3263
Published: April 1, 2025
Retinal
degenerative
diseases
(RDDs)
comprise
diverse
genetic
and
phenotypic
conditions
that
cause
progressive
retinal
dysfunction
cell
loss,
leading
to
vision
impairment
or
blindness.
Most
RDDs
lack
appropriate
animal
models
for
their
study,
which
affects
understanding
disease
mechanisms
delays
the
progress
of
new
treatment
development.
Recent
advances
in
stem
engineering,
omics,
organoid
technology
are
facilitating
research
into
there
no
previously
existing
models.
The
development
organoids
produced
from
human
cells
has
impacted
study
as
well
vitro
diseases,
opening
possibilities
applications
regenerative
medicine,
drug
discovery,
precision
medicine.
In
this
review,
we
recapitulate
RDD,
mentioning
some
main
pathways
underlying
neurodegeneration
can
be
studied
these
models,
limitations
future
challenges
rapidly
advancing
field.
Regenerative Therapy,
Journal Year:
2024,
Volume and Issue:
26, P. 382 - 386
Published: June 1, 2024
Retinal
organoids
are
three-dimensional
(3D)
microscopic
tissues
that
induced
and
differentiated
from
stem
cells
or
progenitor
in
vitro
have
a
highly
similar
structure
to
the
retina.
With
optimization
development
of
3D
retinal
culture
system
improvement
differentiation
technology,
broad
application
prospects
development,
regenerative
medicine,
biomaterial
evaluation,
disease
mechanism
investigation,
drug
screening.
In
this
review
we
summarize
recent
their
applications
ophthalmic
medicine.
particular,
highlight
promise
challenges
use
modeling
discovery.
Stem Cell Research & Therapy,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 2, 2024
Abstract
Background
Inherited
retinal
dystrophies
(IRD)
are
one
of
the
main
causes
incurable
blindness
worldwide.
IRD
caused
by
mutations
in
genes
that
encode
essential
proteins
for
retina,
leading
to
photoreceptor
degeneration
and
loss
visual
function.
generates
an
enormous
global
financial
burden
due
lack
understanding
a
significant
part
its
pathophysiology,
molecular
diagnosis,
near
absence
non-palliative
treatment
options.
Patient-derived
induced
pluripotent
stem
cells
(iPSC)
seem
be
excellent
option
addressing
these
questions,
serving
as
exceptional
tools
in-depth
studies
pathophysiology
testing
new
therapeutic
approaches.
Methods
From
cohort
8
patients
with
PROM1
-related
IRD,
we
identified
3
carrying
same
variant
(c.1354dupT)
but
expressing
three
different
phenotypes:
Cone
rod
dystrophy
(CORD),
Retinitis
pigmentosa
(RP),
Stargardt
disease
type
4
(STGD4).
These
target
patients,
along
healthy
relative
from
each,
underwent
comprehensive
ophthalmic
examinations
their
genetic
panel
study
was
expanded
through
clinical
exome
sequencing
(CES).
Subsequently,
non-integrative
patient-derived
iPSC
were
generated
fully
characterized.
Correction
c.1354dupT
mutation
performed
using
CRISPR/Cas9,
restoration
gene
confirmed
flow
cytometry
western
blotting
lines.
Results
CES
revealed
2
presented
monoallelic
variants
associated
complement
system
or
differentiation
peroxisome
biogenesis
disorders,
respectively.
The
pluripotency
functionality
lines
confirmed,
correction
restored
capability
encoding
Prominin-1
(CD133)
genetically
repaired
Conclusions
is
distinct
AR
phenotypes
IRD.
This
pleotropic
effect
might
related
influence
other
dystrophies.
However,
further
evidence
needs
provided.
Future
experiments
should
include
gene-edited
potential
modelling
elucidate
this
matter
question.
Graphical
Stem Cell Research & Therapy,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Nov. 21, 2024
Abstract
Stem
cell
therapies
have
emerged
as
a
promising
approach
in
regenerative
medicine,
demonstrating
potential
personalized
disease
modeling,
and
drug
discovery.
Therapies
based
on
induced
pluripotent
stem
cells
(iPSCs)
particularly
stand
out
for
their
ability
to
differentiate
into
various
types
while
avoiding
ethical
concerns.
However,
the
development
application
of
these
are
influenced
by
varying
regulatory
frameworks
across
countries.
This
study
provides
comparative
analysis
regulations
research
key
regions:
The
European
Union
(EU),
Switzerland,
South
Korea,
Japan,
United
States.
First,
reviews
therapies.
EU
Switzerland
maintain
rigorous
guidelines
that
prioritize
safety
considerations,
which
can
hinder
innovation.
In
contrast,
States
adopts
more
flexible
stance,
facilitating
rapid
Korea
Japan
take
balanced
incorporating
practices
from
both
regimes.
These
differences
reflect
each
country’s
unique
priorities
impact
pace
scope
therapy
development.
Moreover,
examines
global
trends
clinical
trials
treatments
data
obtained
two
sources:
ClinicalTrials.gov
ICTRP.
Findings
indicate
significant
growth
number
since
2008,
involving
iPSCs.
Therapeutic
studies
iPSCs
predominantly
target
conditions
affecting
cardiovascular
nervous
systems
considered
vital.
results
put
emphasis
treatments.
Meanwhile,
such
also
varies
country.
where
relatively
adopted,
leading
position.
countries
fall
behind
with
imposed.
reflects
need
guidance
active
findings
underscore
importance
legal
innovation
ensuring
safety.
Regulatory
agencies
different
should
collaborate
achieve
standard
ensure
safe
efficient
advancement
Global
convergence
will
promote
international
collaboration
applicability
new
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 13, 2024
Anesthetics
are
widely
used
in
electrophysiological
tests
to
assess
retinal
and
visual
system
functions
avoid
experimental
errors
caused
by
movement
stress
animals.
To
determine
the
most
suitable
anesthetic
for
tests,
excluding
ketamine
chloral
hydrate
due
regulatory
side
effect
concerns,
this
study
investigated
effects
of
ethyl
carbamate
(EC),
avertin
(AR),
pentobarbital
sodium
(PS)
on
signal
conduction
retina
primary
cortex.
Assessments
included
flash
electroretinogram
(FERG),
pattern
(PERG),
evoked
potentials
(PVEP),
(FVEP),
FERG
FVEP
were
evaluate
responses
cortex
stimuli,
respectively,
while
PERG
PVEP
assessed
stimuli.
The
research
showed
that
AR
demonstrates
least
disruption
pathway,
as
evidenced
consistently
high
characteristic
peaks
group
across
various
tests.
In
contrast,
mice
given
EC
exhibited
lowest
peak
values
both
FVEP,
subjects
anesthetized
with
PS
suppressed
oscillatory
responses.
Notably,
substantial
observed
only
AR.
Consequently,
among
three
anesthetics
tested,
is
studies.
Frontiers in Cell and Developmental Biology,
Journal Year:
2024,
Volume and Issue:
12
Published: Nov. 15, 2024
Retinal
pathologies
are
major
causes
of
vision
impairment
and
blindness
in
humans,
inherited
retinal
diseases
(IRDs),
such
as
retinitis
pigmentosa,
Leber
congenital
amaurosis,
Stargardt
disease,
greatly
contribute
to
this
problem.
In
vitro
disease
modeling
can
be
used
for
understanding
the
development
pathology
screening
therapeutic
pharmaceutical
compounds.
preclinical
research
phase,
models
complement
vivo
by
reducing
animal
studies,
decreasing
costs,
shortening
timelines.
Additionally,
may
not
always
accurately
replicate
human
phenotype.
This
review
examines
types
cells
that
create
IRD
models,
including
retina-specific
cell
lines,
primary
cells,
induced
pluripotent
stem
(iPSCs),
more.
Special
attention
is
given
mesenchymal
(MSCs),
which
characterized
various
isolation
sources,
relative
ease
isolation,
straightforward
differentiation.
MSCs
derived
from
bone
marrow
(BM),
adipose
tissue
(AT),
dental
(DT),
umbilical
cord
(UC),
other
sources
differentiate
into
photoreceptor
pigment
epithelial
(RPE)
dysfunction
most
commonly
associated
with
IRDs.
Subsequent
differentiation
carried
out
via
methods:
culturing
induction
media
supplemented
certain
growth
factors,
co-culturing
or
their
conditioned
media,
regulating
gene
expression
viral
vector-delivered
transcription
factors
(TFs)
microRNAs
(miRNAs).
Compared
popular
iPSCs,
example,
MSC-based
significantly
cheaper
faster
obtain,
making
them
more
feasible
large-scale
drug
screening.
Nevertheless,
existing
methods
need
further
optimization
promising
platform
receive
success
it
deserves.
World Journal of Stem Cells,
Journal Year:
2024,
Volume and Issue:
16(5), P. 512 - 524
Published: May 23, 2024
Human
induced
pluripotent
stem
cell
(hiPSC)
technology
is
a
valuable
tool
for
generating
patient-specific
cells,
facilitating
disease
modeling,
and
investigating
mechanisms.
However,
iPSCs
carrying
specific
mutations
may
limit
their
clinical
applications
due
to
certain
inherent
characteristics.