Cells,
Год журнала:
2024,
Номер
13(14), С. 1214 - 1214
Опубликована: Июль 18, 2024
The
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)/CRISPR-associated
protein
(Cas)
system
continues
to
evolve,
thereby
enabling
more
precise
detection
and
repair
of
mutagenesis.
development
CRISPR/Cas-based
diagnosis
holds
promise
for
high-throughput,
cost-effective,
portable
nucleic
acid
screening
genetic
disease
diagnosis.
In
addition,
advancements
in
transportation
strategies
such
as
adeno-associated
virus
(AAV),
lentiviral
vectors,
nanoparticles,
virus-like
vectors
(VLPs)
offer
synergistic
insights
gene
therapeutics
vivo.
Wilson's
(WD),
a
copper
metabolism
disorder,
is
primarily
caused
by
mutations
the
ATPase
transporting
beta
(
Nature Biomedical Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 10, 2024
Abstract
Prime
editing
(PE)
enables
precise
and
versatile
genome
without
requiring
double-stranded
DNA
breaks.
Here
we
describe
the
systematic
optimization
of
PE
systems
to
efficiently
correct
human
cystic
fibrosis
(CF)
transmembrane
conductance
regulator
(
CFTR
)
F508del,
a
three-nucleotide
deletion
that
is
predominant
cause
CF.
By
combining
six
efficiency
optimizations
for
PE—engineered
guide
RNAs,
PEmax
architecture,
transient
expression
dominant-negative
mismatch
repair
protein,
strategic
silent
edits,
PE6
variants
proximal
‘dead’
single-guide
RNAs—we
increased
correction
efficiencies
F508del
from
less
than
0.5%
in
HEK293T
cells
58%
immortalized
bronchial
epithelial
(a
140-fold
improvement)
25%
patient-derived
airway
cells.
The
also
resulted
minimal
off-target
editing,
edit-to-indel
ratios
3.5-fold
greater
those
achieved
by
nuclease-mediated
homology-directed
repair,
functional
restoration
ion
channels
over
50%
wild-type
levels
(similar
via
combination
treatment
with
elexacaftor,
tezacaftor
ivacaftor)
primary
Our
findings
support
feasibility
durable
one-time
Current Issues in Molecular Biology,
Год журнала:
2024,
Номер
46(5), С. 4147 - 4185
Опубликована: Апрель 30, 2024
Recent
years
have
witnessed
unprecedented
progress
in
therapeutic
gene
editing,
revolutionizing
the
approach
to
treating
genetic
disorders.
In
this
comprehensive
review,
we
discuss
progression
of
milestones
leading
emergence
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)-based
technology
as
a
powerful
tool
for
precise
and
targeted
modifications
human
genome.
CRISPR-Cas9
nuclease,
base
prime
editing
taken
center
stage,
demonstrating
remarkable
precision
efficacy
ex
vivo
genomic
modifications.
Enhanced
delivery
systems,
including
viral
vectors
nanoparticles,
further
improved
efficiency
safety
advancing
their
clinical
translatability.
The
exploration
CRISPR-Cas
systems
beyond
commonly
used
Cas9,
such
development
Cas12
Cas13
variants,
has
expanded
repertoire
tools,
enabling
more
intricate
interventions.
Outstandingly,
represents
significant
leap
forward,
given
its
unparalleled
versatility
minimization
off-target
effects.
These
innovations
paved
way
multitude
previously
incurable
disorders,
ranging
from
monogenic
diseases
complex
polygenic
conditions.
This
review
highlights
latest
innovative
studies
field,
emphasizing
breakthrough
technologies
preclinical
trials,
applications
realm
medicine.
However,
challenges
effects
ethical
considerations
remain,
necessitating
continued
research
refine
profiles
frameworks.
We
lack
tools
to
edit
DNA
sequences
at
scales
necessary
study
99%
of
the
human
genome
that
is
noncoding.
To
address
this
gap,
we
applied
CRISPR
prime
editing
insert
recombination
handles
into
repetitive
sequences,
up
1697
per
cell
line,
which
enables
generating
large-scale
deletions,
inversions,
translocations,
and
circular
DNA.
Recombinase
induction
produced
more
than
100
stochastic
megabase-sized
rearrangements
in
each
cell.
tracked
these
over
time
measure
selection
pressures,
finding
a
preference
for
shorter
variants
avoided
essential
genes.
characterized
29
clones
with
multiple
rearrangements,
an
impact
deletions
on
expression
genes
variant
but
not
nearby
This
genome-scrambling
strategy
large
sequence
relocations,
insertion
regulatory
elements
explore
dispensability
organization.
Journal of Translational Medicine,
Год журнала:
2025,
Номер
23(1)
Опубликована: Янв. 13, 2025
Colorectal
cancer
(CRC)
is
the
third
most
prevalent
malignancy
and
second
leading
cause
of
cancer-related
mortality
worldwide,
with
an
increasing
shift
towards
younger
age
onset.
In
recent
years,
there
has
been
recognition
significance
tRNA-derived
small
RNAs
(tsRNAs),
encompassing
fragments
(tRFs)
tRNA
halves
(tiRNAs).
Their
involvement
in
regulating
translation,
gene
expression,
reverse
transcription,
epigenetics
gradually
come
to
light.
Emerging
research
revealed
dysregulation
tsRNAs
CRC,
implicating
their
role
CRC
initiation
progression,
highlighting
potential
early
diagnosis,
prognosis,
therapeutic
strategies.
Although
clinical
application
still
its
stages,
findings
highlight
a
close
relationship
between
biogenesis
function
tsRNAs,
chemical
modifications,
tumor
immune
microenvironment
(TIME).
Additionally,
similar
other
RNAs,
can
be
effectively
delivered
via
nanoparticles
(NPs).
Consequently,
future
should
focus
on
elucidating
concerning
base
TIME
regulation,
immunotherapy,
NPs
delivery
systems
facilitate
translation.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Фев. 12, 2025
Abstract
Prime
editing
systems
(PEs)
hold
great
promise
in
modern
biotechnology.
However,
their
range
is
limited
as
PEs
can
only
modify
the
downstream
sequences
of
pegRNA
nick.
Here,
we
report
development
ex
tended
p
rime
e
dito
r
sys
t
em
(EXPERT)
to
overcome
this
limitation
by
using
an
extended
(ext-pegRNA)
with
modified
3’
extension,
and
additional
sgRNA
(ups-sgRNA)
targeting
upstream
region
ext-pegRNA.
We
demonstrate
that
EXPERT
efficiently
perform
on
both
sides
ext-pegRNA
nick,
a
task
unattainable
canonical
PEs.
exhibits
prominent
capacity
replacing
up
88
base
pairs
inserting
100
within
Compared
such
PE2,
utilization
strategy
significantly
enhances
efficiency
for
large
fragment
edits
average
improvement
3.12-fold,
122.1
times
higher.
Safety
wise,
use
ups-sgRNA
does
not
increase
rates
undesirable
insertions
deletions
(indels),
two
nicks
are
same
strand.
Moreover,
do
observe
increased
off-target
genome-wide.
Our
work
introduces
PE
tool
significant
potential
life
sciences.
Genomics,
Год журнала:
2025,
Номер
117(2), С. 111014 - 111014
Опубликована: Фев. 13, 2025
Gene
editing
technologies,
particularly
CRISPR/Cas9,
have
emerged
as
transformative
tools
in
genetic
modification,
significantly
advancing
the
use
of
porcine
embryos
biomedical
and
agricultural
research.
This
review
comprehensively
examines
various
methodologies
for
gene
delivery
methods,
such
somatic
cell
nuclear
transfer
(SCNT),
microinjection,
electroporation,
lipofection.
review,
focuses
on
advantages
or
limitations
using
different
biological
sources
(in
vivo-
vs.
vitro
oocytes/embryos).
Male
germ
manipulation
sperm-mediated
(SMGT)
testis-mediated
(TMGT)
represent
innovative
approaches
producing
genetically
modified
animals.
Although
these
technologies
revolutionized
engineering
field,
all
strategies
face
challenges,
including
high
rates
off-target
events
mosaicism.
emphasizes
need
to
refine
with
a
focus
reducing
mosaicism
improving
accuracy.
Further
advancements
are
essential
unlocking
full
potential
both
applications
innovations.
Cells,
Год журнала:
2025,
Номер
14(4), С. 277 - 277
Опубликована: Фев. 13, 2025
Prime
editing
is
a
genome
technique
that
allows
precise
modifications
of
cellular
DNA
without
relying
on
donor
templates.
Recently,
several
different
prime
editor
proteins
have
been
published
in
the
literature,
single-
or
double-strand
breaks.
When
occurs,
undergoes
one
repair
pathways,
and
these
processes
can
be
modulated
with
use
inhibitors.
Firstly,
this
review
provides
an
overview
mechanisms
their
modulation
by
known
In
addition,
we
summarize
editors
provide
comprehensive
associated
mechanisms.
Finally,
discuss
delivery
safety
aspects
editing.
Frontiers in Genome Editing,
Год журнала:
2025,
Номер
7
Опубликована: Март 10, 2025
Climate
change
threatens
global
crop
yield
and
food
security
due
to
rising
temperatures,
erratic
rainfall,
increased
abiotic
stresses
like
drought,
heat,
salinity.
Gene
editing
technologies,
including
CRISPR/Cas9,
base
editors,
prime
offer
precise
tools
for
enhancing
resilience.
This
review
explores
the
mechanisms
of
these
technologies
their
applications
in
developing
climate-resilient
crops
address
future
challenges.
While
CRISPR/enables
targeted
modifications
plant
DNA,
editors
allow
direct
conversion
without
inducing
double-stranded
breaks,
enable
insertions,
deletions,
substitutions.
By
understanding
manipulating
key
regulator
genes
involved
stress
responses,
such
as
DREB,
HSP,
SOS,
ERECTA,
HsfA1,
NHX;
tolerance
can
be
enhanced
against
salt
stress.
improve
traits
related
root
development,
water
use
efficiency,
response
pathways,
heat
shock
response,
photosynthesis,
membrane
stability,
ion
homeostasis,
osmotic
adjustment,
oxidative
response.
Advancements
gene
integration
with
genomics,
phenomics,
artificial
intelligence
(AI)/machine
learning
(ML)
hold
great
promise.
However,
challenges
off-target
effects,
delivery
methods,
regulatory
barriers
must
addressed.
highlights
potential
develop
crops,
contributing
sustainable
agriculture.