Medicine Plus,
Journal Year:
2024,
Volume and Issue:
1(2), P. 100027 - 100027
Published: May 2, 2024
In
recent
years,
gene
editing
technology,
represented
by
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)/CRISPR-associated
protein
9
(Cas9)
has
made
a
revolutionary
breakthrough.
Base
techniques
developed
from
CRISPR/Cas9
technologies
have
demonstrated
the
ability
to
efficiently
achieve
single
base
substitutions
at
specific
genomic
sites
without
double-strand
breaks.
systems
evolved
rapidly
over
past
few
efficient
single-base
high-throughput
screening,
and
in
vitro
vivo
applications.
particular,
screening
facilitated
functional
studies
single-nucleotide
resolution,
offering
unprecedented
insights
into
genetic
function.
Meanwhile,
rapid
advancement
of
artificial
intelligence
(AI)
is
playing
pivotal
role
assisting
genome
streamlining
data
analysis
within
systems.
This
review
encompasses
progress
research,
focusing
on
development
technologies,
exploring
editing-based
level,
underscoring
potential
synergies
between
AI
studies.
Experimental & Molecular Medicine,
Journal Year:
2024,
Volume and Issue:
56(4), P. 861 - 869
Published: April 1, 2024
Abstract
Advances
in
sequencing
technology
have
greatly
increased
our
ability
to
gather
genomic
data,
yet
understanding
the
impact
of
genetic
mutations,
particularly
variants
uncertain
significance
(VUSs),
remains
a
challenge
precision
medicine.
The
CRISPR‒Cas
system
has
emerged
as
pivotal
tool
for
genome
engineering,
enabling
precise
incorporation
specific
variations,
including
VUSs,
into
DNA
facilitate
their
functional
characterization.
Additionally,
integration
with
tools
allows
high-throughput
evaluation
transforming
data
actionable
insights.
This
researchers
comprehensively
study
consequences
point
paving
way
enhanced
and
increasing
application
review
summarizes
current
editing
utilizing
systems
combination
genomics,
focus
on
mutations.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Jan. 27, 2024
Abstract
Prime
editing
allows
precise
installation
of
any
single
base
substitution
and
small
insertions
deletions
without
requiring
homologous
recombination
or
double-strand
DNA
breaks
in
eukaryotic
cells.
However,
the
applications
bacteria
are
hindered
underlying
mechanisms
that
impede
efficient
prime
remain
enigmatic.
Here,
we
report
determination
vital
cellular
factors
affect
bacteria.
Genetic
screening
129
Escherichia
coli
transposon
mutants
identified
sbcB
,
a
3ʹ→5ʹ
exonuclease,
as
key
genetic
determinant
impeding
E.
combinational
which
with
two
additional
exonucleases,
xseA
exoX
drastically
enhanced
efficiency
by
up
to
100-fold.
Efficient
wild-type
can
be
achieved
simultaneously
inhibiting
exonucleases
via
CRISPRi.
Our
results
pave
way
for
versatile
bacterial
genome
engineering.
Frontiers in Genome Editing,
Journal Year:
2024,
Volume and Issue:
6
Published: Feb. 1, 2024
Genome
editing
using
the
CRISPR/Cas
system
has
revolutionized
field
of
genetic
engineering,
offering
unprecedented
opportunities
for
therapeutic
applications
in
vivo
.
Despite
numerous
ongoing
clinical
trials
focusing
on
ex
genome
editing,
recent
studies
emphasize
promise
gene
technology.
However,
it
is
worth
noting
that
complete
attainment
inherent
capabilities
therapy
humans
yet
to
be
accomplished.
Before
full
realization
potential,
crucial
achieve
enhanced
specificity
selectively
targeting
defective
cells
while
minimizing
harm
healthy
cells.
This
review
examines
emerging
studies,
CRISPR/Cas-based
pre-clinical
and
innovative
approaches
a
wide
range
diseases.
Furthermore,
we
cancer-specific
sequences
target
genes
associated
with
tumors,
shedding
light
diverse
strategies
employed
cancer
treatment.
We
highlight
various
challenges
explore
their
prospective
translatability
overcome
these
obstacles.
Journal of Experimental Botany,
Journal Year:
2024,
Volume and Issue:
75(17), P. 5344 - 5356
Published: Feb. 16, 2024
Abstract
Prime
editors
are
reverse
transcriptase
(RT)-based
genome-editing
tools
that
utilize
double-strand
break
(DSB)-free
mechanisms
to
decrease
off-target
editing
in
genomes
and
enhance
the
efficiency
of
targeted
insertions.
The
multiple
prime
have
been
developed
within
a
short
span
time
testament
potential
this
technique
for
This
is
mainly
because
possibility
generation
all
types
mutations
including
deletions,
insertions,
transitions,
transversions.
reverses
several
bottlenecks
gene
technologies
limit
biotechnological
applicability
produce
designer
crops.
review
evaluates
status
evolution
terms
available
up
editor
5
twin
editors,
considers
developments
plants
systematic
manner.
various
factors
affecting
discussed
detail,
effects
temperature,
guide
(peg)RNA,
RT
template
amongst
others.
We
discuss
current
obstructions,
key
challenges,
resolutions
associated
with
technique,
consider
future
directions
further
improvements
feasible
elevate
plants.
Nature Biotechnology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 6, 2024
Using
transient
inhibition
of
DNA
mismatch
repair
during
a
permissive
stage
development,
we
demonstrate
highly
efficient
prime
editing
mouse
embryos
with
few
unwanted,
local
byproducts
(average
58%
precise
edit
frequency,
0.5%
on-target
error
frequency
across
13
substitution
edits
at
8
sites),
enabling
same-generation
phenotyping
founders.
Whole-genome
sequencing
reveals
that
increases
off-target
indels
low-complexity
regions
in
the
genome
without
any
obvious
phenotype
mice.
Nature Biotechnology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Mutational
scanning
connects
genetic
variants
to
phenotype,
enabling
the
interrogation
of
protein
functions,
interactions
and
variant
pathogenicity.
However,
current
methodologies
cannot
efficiently
engineer
customizable
sets
diverse
in
endogenous
loci
across
cellular
contexts
high
throughput.
Here,
we
combine
cytosine
adenine
base
editors
a
prime
editor
assess
pathogenicity
broad
spectrum
epithelial
growth
factor
receptor
gene
(EGFR).
Using
pooled
editing
guide
RNA
libraries,
install
tens
thousands
spanning
full
coding
sequence
EGFR
multiple
cell
lines
role
these
tumorigenesis
resistance
tyrosine
kinase
inhibitors.
Our
scan
identifies
important
hits,
supporting
robustness
approach
revealing
underappreciated
routes
activation
drug
response.
We
anticipate
that
multimodal
precision
mutational
can
be
applied
broadly
characterize
variation
any
element
interest
at
single-nucleotide
resolution.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 23, 2024
Abstract
While
protein-coding
genes
are
characterized
increasingly
well,
99%
of
the
human
genome
is
non-coding
and
poorly
understood.
This
gap
due
to
a
lack
tools
for
engineering
variants
that
affect
sequence
necessary
extent.
To
bridge
this
gap,
we
have
developed
toolbox
create
deletions,
inversions,
translocations,
extrachromosomal
circular
DNA
at
scale
by
highly
multiplexed
insertion
recombinase
recognition
sites
into
repetitive
sequences
with
CRISPR
prime
editing.
Using
strategy,
derived
stable
cell
lines
several
thousand
clonal
insertions,
highest
number
novel
inserted
single
genomes.
Subsequent
induction
generated
an
average
more
than
one
hundred
megabase-sized
rearrangements
per
cell,
thousands
across
whole
population.
The
ability
detect
as
they
track
their
abundance
over
time
allowed
us
measure
selection
pressures
acting
on
different
types
structural
changes.
We
observed
consolidation
towards
shorter
preferentially
delete
growth-inhibiting
depletion
translocations.
isolated
21
clones
multiple
recombinase-induced
rearrangements.
These
included
viable
haploid
deletions
span
hundreds
kilobases
well
triploid
HEK293T
aneuploidies
fold
back
chromosomes.
mapped
impact
these
genetic
changes
gene
expression
decipher
how
regulation.
scrambling
strategy
here
makes
it
possible
megabases
sequence,
move
between
within
chromosomes,
implant
regulatory
elements
new
contexts
which
will
shed
light
organization
principles
humans
other
species.
Nature Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Prime
editing
installs
precise
edits
into
the
genome
with
minimal
unwanted
byproducts,
but
low
and
variable
efficiencies
have
complicated
application
of
approach
to
high-throughput
functional
genomics.
Here
we
assembled
a
prime
platform
capable
high-efficiency
substitution
suitable
for
interrogation
small
genetic
variants.
We
benchmarked
this
pooled,
loss-of-function
screening
using
library
~240,000
engineered
guide
RNAs
(epegRNAs)
targeting
~17,000
codons
1–3
bp
substitutions.
Comparing
abundance
these
epegRNAs
across
screen
samples
identified
negative
selection
phenotypes
7,996
nonsense
mutations
targeted
1,149
essential
genes
synonymous
that
disrupted
splice
site
motifs
at
3′
exon
boundaries.
Rigorous
evaluation
codon-matched
controls
demonstrated
were
highly
specific
intended
edit.
Altogether,
established
multiplexed,
characterization
variants
simple
readouts.
This
work
establishes
(up
tens
thousands)
phenotypes.