Cells,
Год журнала:
2024,
Номер
13(23), С. 2033 - 2033
Опубликована: Дек. 9, 2024
Circular
RNAs
(circRNAs)
are
a
class
of
noncoding
that
lack
the
5′-cap
structure
and
3′
poly(A)
tail.
Their
distinguishing
feature
is
5′
ends
covalently
linked
to
form
closed
circular
structure.
CircRNAs
have
longer
half-life
stronger
ribonuclease
resistance
compared
with
linear
RNA.
Viral
infections
lead
production
circRNA
molecules
through
transcription
splicing
mechanisms
host
cells.
circRNAs
produced
from
viral
genome
or
reactions
cell
gene.
They
participate
in
regulating
replication
many
viruses,
including
coronaviruses,
human
herpesviruses,
immunodeficiency
virus,
cytomegalovirus.
regulate
infection
process
by
modulating
expression
cells
affect
cellular
biological
processes.
Some
been
proposed
as
diagnostic
markers
for
infections.
In
this
review,
we
discussed
properties
virus-derived
circRNAs,
functions
diverse
viruses-derived
during
infections,
critical
role
host’s
antiviral
immune
defense.
Extensive
research
on
applications
can
help
us
better
understand
gene
regulatory
networks
disease
mechanisms.
Emerging Microbes & Infections,
Год журнала:
2023,
Номер
12(2)
Опубликована: Сен. 19, 2023
Virus
circular
RNAs
(circRNA)
have
been
reported
to
be
extensively
expressed
and
play
important
roles
in
viral
infections.
Previously
we
build
the
first
database
of
virus
circRNAs
named
VirusCircBase
which
has
widely
used
field.
This
study
significantly
improved
on
both
data
quantity
functionality:
number
circRNAs,
species,
host
organisms
was
increased
from
46440,
23,
9
60859,
43,
22,
respectively,
1902
full-length
were
newly
added;
new
functions
added
such
as
visualization
expression
level
Genome
Browser.
Analysis
showed
that
they
had
low
levels
most
cells
or
tissues
strong
heterogeneity.
splicing
a
much
higher
proportion
non-canonical
back-splicing
signals
compared
those
animals
plants,
mainly
A5SS
(alternative
5'
splice
site)
alternative-splicing.
Most
no
more
than
two
isoforms.
Finally,
human
genes
associated
with
circRNA
production
investigated
1000
exhibited
moderate
correlations
circRNAs.
them
negative
including
42
encoding
RNA-binding
proteins.
They
enriched
biological
processes
related
cell
cycle
RNA
processing.
Overall,
provides
valuable
resource
for
further
studies
also
insights
into
biogenesis
mechanisms
Frontiers in Immunology,
Год журнала:
2022,
Номер
13
Опубликована: Ноя. 9, 2022
Coronavirus
disease
2019
(COVID-19),
an
infectious
acute
respiratory
caused
by
a
newly
emerging
RNA
virus,
is
still-growing
pandemic
that
has
more
than
6
million
deaths
globally
and
seriously
threatened
the
lives
health
of
people
across
world.
Currently,
several
drugs
have
been
used
in
clinical
treatment
COVID-19,
such
as
small
molecules,
neutralizing
antibodies,
monoclonal
antibodies.
In
addition,
vaccines
to
prevent
spread
pandemic,
adenovirus
vector
vaccines,
inactivated
recombinant
subunit
nucleic
acid
vaccines.
However,
efficacy
onset
adverse
reactions
vary
among
individuals.
Accumulating
evidence
demonstrated
circular
RNAs
(circRNAs)
are
crucial
regulators
viral
infections
antiviral
immune
responses
heavily
involved
COVID-19
pathologies.
During
novel
coronavirus
infection,
circRNAs
not
only
directly
affect
transcription
process
interfere
with
replication
but
also
indirectly
regulate
biological
processes,
including
virus-host
receptor
binding
response.
Consequently,
understanding
expression
function
during
severe
syndrome
2
(SARS-CoV-2)
infection
will
provide
insights
into
development
circRNA-based
methods.
this
review,
we
summarize
recent
progress
on
roles
underlying
mechanisms
inflammatory
response,
replication,
evasion,
cytokines
induced
SARS-CoV-2
thus
highlighting
diagnostic
therapeutic
challenges
future
research
directions.
The
ovary
is
the
major
determinant
of
female
reproductive
health.
Ovarian
functions
are
mainly
related
to
primordial
follicle
pool,
which
gradually
loss
with
aging.
aging
and
dysfunctions
share
oxidative
stress
as
common
underlying
mechanism.
ROS
signaling
essential
for
normal
ovarian
processes
yet
can
contribute
various
disorders
when
disrupted.
Therefore,
balance
in
redox
system
crucial
proper
functions.
In
present
study,
by
focusing
on
mRNAs
ncRNAs
described
taking
into
account
only
validated
ncRNA
interactions,
we
built
up
an
antioxidant
ceRNA
network,
namely
OvAnOx
ceRNA,
composed
5
(SOD1,
SOD2,
CAT,
PRDX3,
GR),
10
miRNAs
lncRNAs
(XIST,
FGD5-AS1,
MALAT1,
NEAT1,
SNHG1).
Our
bioinformatic
analysis
indicated
that
components
not
defence,
but
also
involved
other
Indeed,
enzymes
encoded
mRNA
operate
within
a
regulatory
network
impacts
reserve,
dynamics,
oocyte
maturation
pathological
conditions.
represents
promising
tool
unravel
complex
dialogue
between
potential
signalling
pathways
health,
diseases.
Exploration of Medicine,
Год журнала:
2023,
Номер
unknown, С. 504 - 540
Опубликована: Авг. 31, 2023
The
idea
that
proteins
are
the
main
determining
factors
in
functioning
of
cells
and
organisms,
their
dysfunctions
first
cause
pathologies,
has
been
predominant
biology
biomedicine
until
recently.
This
protein-centered
view
was
too
simplistic
failed
to
explain
physiological
pathological
complexity
cell.
About
80%
human
genome
is
dynamically
pervasively
transcribed,
mostly
as
non-protein-coding
RNAs
(ncRNAs),
which
competitively
interact
with
each
other
coding
generating
a
complex
RNA
network
regulating
processing,
stability,
translation
and,
accordingly,
fine-tuning
gene
expression
cells.
Qualitative
quantitative
dysregulations
RNA-RNA
interaction
networks
strongly
involved
onset
progression
many
including
cancers
degenerative
diseases.
review
will
summarize
species
competitive
endogenous
network,
mechanisms
action,
involvement
phenotypes.
Moreover,
it
give
an
overview
most
advanced
experimental
computational
methods
dissect
rebuild
networks.
Biomolecules,
Год журнала:
2022,
Номер
12(9), С. 1235 - 1235
Опубликована: Сен. 4, 2022
Tuberculosis
(TB),
caused
by
Mycobacterium
tuberculosis
(Mtb)
infection,
remains
one
of
the
most
threatening
infectious
diseases
worldwide.
A
series
challenges
still
exist
for
TB
prevention,
diagnosis
and
treatment,
which
therefore
require
more
attempts
to
clarify
pathological
immunological
mechanisms
in
development
progression
TB.
Circular
RNAs
(circRNAs)
are
a
large
class
non-coding
RNA,
mostly
expressed
eukaryotic
cells,
generated
spliceosome
through
back-splicing
linear
RNAs.
Accumulating
studies
have
identified
that
circRNAs
widely
involved
variety
physiological
processes,
acting
as
sponges
or
decoys
microRNAs
proteins,
scaffold
platforms
modulators
transcription
special
templates
translation.
Due
stable
spread
characteristics
circRNAs,
they
expected
serve
promising
prognostic/diagnostic
biomarkers
therapeutic
targets
diseases.
In
this
review,
we
briefly
describe
biogenesis,
classification,
detection
technology
functions
and,
particular,
outline
dynamic,
sometimes
aberrant
changes
Moreover,
further
summarize
recent
progress
research
linking
TB-related
pathogenetic
well
potential
roles
diagnostic
miRNAs
case
Mtb
is
enhance
our
understanding
provide
some
novel
ideas
about
how
overcome
associated
future.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 6, 2023
Summary
RNA
viruses,
such
as
respiratory
syncytial
virus
and
SARS-CoV-2,
can
generate
viral
circular
RNAs
(circRNAs),
which
may
play
important
roles
during
infection.
However,
whether
influenza
A
viruses
have
this
ability
to
circRNAs
remains
unknown.
In
study,
we
discovered
that
the
negative-strand
of
H1N1
nucleoprotein
(NP)
gene
a
circRNA,
designated
circNP37.
Furthermore,
demonstrated
circNP37
positively
regulated
replication
by
competitively
sponging
host
miR-361-5p
inhibited
polymerase
basic
protein
2
(PB2)
expression.
These
results
were
confirmed
using
in
vivo
experiments.
Compared
with
wild-type
virus,
infection
knockout
resulted
reduced
load
lungs.
This
study
demonstrates,
for
first
time,
existence
biological
function
H1N1-derived
findings
help
us
better
understand
mechanisms
pathogenicity.
Highlights
Negative-strand
circRNA
CircNP37
plays
viral-host
interactions
regulates
eTOC
Blurb
found
virus-derived
We
also
regulate
PB2
expression
via
sponge
Biomolecules,
Год журнала:
2023,
Номер
13(11), С. 1597 - 1597
Опубликована: Окт. 30, 2023
Besides
respiratory
illness,
SARS-CoV-2,
the
causative
agent
of
COVID-19,
leads
to
neurological
symptoms.
The
molecular
mechanisms
leading
neuropathology
after
SARS-CoV-2
infection
are
sparsely
explored.
enters
human
cells
via
different
receptors,
including
ACE-2,
TMPRSS2,
and
TMEM106B.
In
this
study,
we
used
a
human-induced
pluripotent
stem
cell-derived
neuronal
model,
which
expresses
TMEM106B,
other
possible
evaluate
its
susceptibility
infection.
neurons
were
exposed
followed
by
RT-qPCR,
immunocytochemistry,
proteomic
analyses
infected
neurons.
Our
findings
showed
that
infects
at
lower
rate
than
cells;
however,
virus
could
not
replicate
or
produce
infectious
virions
in
model.
Despite
aborted
replication,
nuclei
irregular
morphology
compared
cells.
Since
cytokine
storm
is
significant
effect
COVID-19
patients,
addition
direct
infection,
treated
with
pre-conditioned
media
from
SARS-CoV-2-infected
lung
cells,
neuroproteomic
changes
investigated.
limited
profile,
particularly
affecting
mitochondrial
proteins
apoptotic
metabolic
pathways,
may
lead
development
complications.
our
study
uncover
mechanism
behind
SARS-CoV-2-mediated
might
contribute
lingering
effects
on
brain.