International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(22), P. 12346 - 12346
Published: Nov. 17, 2024
It
is
estimated
that
nearly
all
individuals
have
been
infected
with
herpesviruses,
herpes
simplex
virus
type
1
(HSV-1)
representing
the
most
prevalent
virus.
In
cases,
HSV-1
causes
non-life-threatening
skin
damage
in
adults.
However,
patients
compromised
immune
systems,
it
can
cause
serious
diseases,
including
death.
The
situation
further
complicated
by
emergence
of
strains
are
resistant
to
both
traditional
and
novel
antiviral
drugs.
is,
therefore,
imperative
new
methods
combating
other
herpesviruses
be
developed
without
delay.
CRISPR/Cas
systems
may
prove
an
effective
means
controlling
herpesvirus
infections.
This
review
presents
current
understanding
underlying
molecular
mechanisms
infection
discusses
four
potential
applications
fight
against
These
include
search
for
viral
cellular
genes
serve
as
targets,
optimization
anti-HSV-1
activity
vivo,
development
CRISPR/Cas-based
diagnostics,
validation
drug
resistance
mutations.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(7), P. 3511 - 3519
Published: April 23, 2024
Excavating
nucleic
acid
quantitative
capabilities
by
combining
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)
and
isothermal
amplification
in
one
pot
is
of
common
interest.
However,
the
mutual
interference
between
CRISPR
cleavage
primary
obstacle
to
detection.
Though
several
works
have
demonstrated
enhanced
detection
sensitivity
reducing
inhibition
on
pot,
few
paid
attention
process
even
dynamic
reaction
processes
two.
Herein,
we
find
that
DNA
quantification
can
be
realized
regulating
either
recombinase
polymerase
(RPA)
efficiency
or
CRISPR/Cas12a
cleaving
(namely,
tuning
balance)
pot.
The
sensitive
utilizing
dual
PAM-free
crRNAs
for
recognition.
varied
RPA
primer
concentration
with
stabilized
systems
significantly
affects
performances.
Alternatively,
also
achieved
stabilizing
while
concentration.
capability
proved
detecting
targets
from
Lactobacillus
acetotolerans
SARS-CoV-2.
performance
toward
real
samples
comparable
real-time
PCR
L.
spiked
fermented
food
SARS-CoV-2
clinical
samples.
We
expect
presented
method
will
a
powerful
tool
quantifying
other
targets.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(11), P. 10701 - 10712
Published: May 30, 2023
Quantification
of
HIV
RNA
in
plasma
is
critical
for
identifying
the
disease
progression
and
monitoring
effectiveness
antiretroviral
therapy.
While
RT-qPCR
has
been
gold
standard
viral
load
quantification,
digital
assays
could
provide
an
alternative
calibration-free
absolute
quantification
method.
Here,
we
reported
a
Self-digitization
Through
Automated
Membrane-based
Partitioning
(STAMP)
method
to
digitalize
CRISPR-Cas13
assay
(dCRISPR)
amplification-free
HIV-1
RNAs.
The
Cas13
was
designed,
validated,
optimized.
We
evaluated
analytical
performances
with
synthetic
With
membrane
that
partitions
∼100
nL
reaction
mixture
(effectively
containing
10
input
sample),
showed
samples
spanning
4
orders
dynamic
range
between
1
fM
(∼6
RNAs)
pM
(∼60k
be
quantified
as
fast
30
min.
also
examined
end-to-end
performance
from
extraction
STAMP-dCRISPR
using
140
μL
both
spiked
clinical
samples.
demonstrated
device
detection
limit
approximately
2000
copies/mL
can
resolve
change
3571
(equivalent
3
RNAs
single
membrane)
90%
confidence.
Finally,
20
patient
(10
positives
negatives)
benchmarked
RT-PCR.
results
agree
very
well
RT-PCR
all
negative
high
positive
Ct
<
32.
However,
limited
detecting
low
>
32
due
subsampling
errors.
Our
platform
offer
accessible
By
further
addressing
issue
approaches
such
preconcentration,
this
exploited
quantitatively
determining
array
infectious
diseases.
Critical Reviews in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 17
Published: March 15, 2024
MicroRNA
(miRNA)
has
emerged
as
a
promising
biomarker
for
disease
diagnosis
and
potential
therapeutic
targets
drug
development.
The
detection
of
miRNA
can
serve
noninvasive
tool
in
diseases
predicting
prognosis.
CRISPR/Cas12a
system
great
nucleic
acid
due
to
its
high
sensitivity
specificity,
which
been
developed
be
versatile
acid-based
various
fields.
However,
conversion
from
RNA
DNA
with
or
without
amplification
operation
is
necessary
based
on
system,
because
dsDNA
containing
PAM
sequence
ssDNA
traditionally
considered
the
activator
Cas12a.
Until
recently,
direct
by
reported.
In
this
review,
we
provide
an
overview
evolution
biosensors
indirect
direct,
would
beneficial
development
CRISPR/Cas12a-based
sensors
better
performance
miRNA.
Sensors and Actuators Reports,
Journal Year:
2024,
Volume and Issue:
8, P. 100212 - 100212
Published: June 20, 2024
For
the
29.8
million
people
in
world
living
with
HIV/AIDS
and
receiving
antiretroviral
therapy,
it
is
crucial
to
monitor
their
HIV
viral
loads.
To
this
end,
rapid
portable
diagnostic
tools
that
can
quantify
RNA
are
critically
needed.
We
report
herein
a
quantitative
digital
CRISPR-assisted
detection
assay
has
been
implemented
within
smartphone-based
device
as
potential
solution.
Specifically,
we
first
developed
fluorescence-based
reverse
transcription
recombinase
polymerase
amplification
(RT-RPA)-CRISPR
efficiently
detect
at
42°C.
then
commercial
stamp-sized
chip,
where
molecules
were
quantified
strongly
fluorescent
reaction
wells.
The
isothermal
condition
strong
fluorescence
chip
simplified
design
of
thermal
optical
modules,
allowing
us
engineer
palm-size
measuring
70
×
115
80
mm
weighing
less
than
0.6
kg.
also
capitalized
smartphone
by
developing
custom
app
control
device,
perform
assay,
capture
images
throughout
assay.
Moreover,
trained
verified
deep
learning-based
algorithm
for
analyzing
identifying
positive
wells
high
accuracy.
Using
our
smartphone-enabled
CRISPR
successfully
detected
low
75
copies
just
15
min,
showing
its
toward
monitoring
loads
aiding
global
effort
combat
epidemic.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(17), P. 13447 - 13447
Published: Aug. 30, 2023
CRISPR/Cas
systems
have
found
widespread
applications
in
gene
editing
due
to
their
high
accuracy,
programmability,
ease
of
use,
and
affordability.
Benefiting
from
the
cleavage
properties
(trans-
or
cis-)
Cas
enzymes,
scope
has
expanded
beyond
they
been
utilized
various
fields,
particularly
live-cell
imaging
bioanalysis.
In
this
review,
we
summarize
some
fundamental
working
mechanisms
concepts
systems,
describe
recent
advances
design
principles
mediated
techniques
employed
bioanalysis,
highlight
main
biosensing
a
wide
range
molecular
targets,
discuss
challenges
prospects
biosensing.
By
illustrating
bio-sensing
processes,
hope
review
will
guide
best
use
quantifying
biological
clinical
elements
inspire
new
ideas
for
better
tool