Frontiers in Molecular Neuroscience,
Journal Year:
2023,
Volume and Issue:
16
Published: March 17, 2023
Introduction
Development
and
worsening
of
most
common
neurodegenerative
diseases,
such
as
Alzheimer’s
disease,
Parkinson’s
multiple
sclerosis,
have
been
associated
with
COVID-19
However,
the
mechanisms
neurological
symptoms
in
patients
sequelae
are
not
clear.
The
interplay
between
gene
expression
metabolite
production
CNS
is
driven
by
miRNAs.
These
small
non-coding
molecules
dysregulated
diseases
COVID-19.
Methods
We
performed
a
thorough
literature
screening
database
mining
to
search
for
shared
miRNA
landscapes
SARS-CoV-2
infection
neurodegeneration.
Differentially
expressed
miRNAs
were
searched
using
PubMed,
while
differentially
five
(Alzheimer’s
Huntington’s
amyotrophic
lateral
sclerosis)
Human
microRNA
Disease
Database.
Target
genes
overlapping
miRNAs,
identified
miRTarBase,
used
pathway
enrichment
analysis
Kyoto
Encyclopedia
Genes
Genomes
Reactome.
Results
In
total,
98
found.
Additionally,
two
them
(hsa-miR-34a
hsa-miR-132)
highlighted
promising
biomarkers
neurodegeneration,
they
all
hsa-miR-155
was
upregulated
four
studies
found
be
neurodegeneration
processes
well.
Screening
targets
746
unique
strong
evidence
interaction.
significant
KEGG
Reactome
pathways
being
involved
signaling,
cancer,
transcription
infection.
more
specific
confirmed
neuroinflammation
important
feature.
Discussion
Our
based
approach
has
that
may
valuable
potential
prediction
patients.
can
further
explored
drug
or
agents
modify
signaling
pathways.
Graphical
Abstract
Shared
among
investigated
identified.
hsa-miR-34a
has-miR-132,
present
after
Furthermore,
together
A
analyses
on
list
target
finally
top
20
evaluated
their
identification
new
targets.
feature
neuroinflammation.
AD,
disease;
ALS,
sclerosis;
COVID-19,
coronavirus
disease
2019;
HD,
KEGG,
Genomes;
MS,
PD,
disease.
Journal of Extracellular Vesicles,
Journal Year:
2022,
Volume and Issue:
11(6)
Published: June 1, 2022
Human
mesenchymal
stem
cell
(hMSC)
derived
extracellular
vesicles
(EVs)
have
shown
therapeutic
potential
in
recent
studies.
However,
the
corresponding
components
are
largely
unknown,
and
scale-up
production
of
hMSC
EVs
is
a
major
challenge
for
translational
applications.
In
current
study,
hMSCs
were
grown
as
3D
aggregates
under
wave
motion
to
promote
EV
secretion.
Results
demonstrate
that
activation
endosomal
sorting
complexes
required
transport
(ESCRT)-dependent
-independent
pathways.
mRNA
sequencing
revealed
global
transcriptome
alterations
aggregates.
Compared
2D-hMSC-EVs,
quantity
3D-hMSC-EVs
was
enhanced
significantly
(by
2-fold),
with
smaller
sizes,
higher
miR-21
miR-22
expression,
an
altered
protein
cargo
(e.g.,
upregulation
cytokines
anti-inflammatory
factors)
uncovered
by
proteomics
analysis,
possibly
due
biogenesis.
Functionally,
rejuvenated
senescent
cells
exhibited
immunomodulatory
potentials.
summary,
this
study
provides
promising
strategy
scalable
high-quality
from
potential.
Journal of Autoimmunity,
Journal Year:
2019,
Volume and Issue:
101, P. 17 - 25
Published: April 20, 2019
Multiple
sclerosis
(MS)
is
a
leading
cause
of
progressive
disability
among
young
adults
caused
by
inflammation,
demyelination
and
axonal
loss
in
the
central
nervous
system.
Small
non-coding
RNAs
(sncRNAs)
are
important
regulators
various
biological
processes
could
therefore
play
roles
MS.
Over
past
decade,
large
number
studies
investigated
sncRNAs
MS
patients,
focusing
primarily
on
microRNAs
(miRNAs).
Overwhelming
500
miRNAs
have
been
reported
as
dysregulated
Nevertheless,
owing
to
heterogeneity
between
it
challenging
evaluate
reproducibility
findings,
turn
hampering
our
knowledge
about
functional
disease.
We
systematically
searched
main
databases
evaluated
results
from
all
that
examined
date
(n
=
61)
provided
detailed
overview
experimental
design
findings
these
studies.
focused
mechanisms
most
used
predicted
targets
input
for
enrichment
analysis
highlight
affected
pathways.
The
prime
pathway
was
TGF-β
signaling.
This
multifunctional
cytokine
differentiation
function
T
helper
type
17
(Th17)
regulatory
(Treg)
cells,
with
opposing
functions
Recent
demonstrate
importance
controlling
balance
Th17/Th1
cells
Tregs
and,
importantly,
potential
exploit
this
paradigm
therapeutic
purposes.
Additionally,
some
discussed
potentially
serve
biomarkers
In
order
assist
researchers
evaluating
evidence
particular
sncRNA
pathogenesis
MS,
we
provide
date.
Cellular Physiology and Biochemistry,
Journal Year:
2018,
Volume and Issue:
50(5), P. 1754 - 1763
Published: Jan. 1, 2018
Background/Aims:
A
reduced
prevalence
of
circulating
regulatory
T
cells
(Tregs)is
a
hallmark
inflammatory
rheumatoid
arthritis
(RA).
However,
the
underlying
mechanisms
alterations
Tregs
are
unclear.
Methods:
The
ratio
in
peripheral
blood
healthy
controls
(HCs)
and
patients
with
RA
was
determined
by
flow
cytometry.
MicroRNA
(miRNA)
expression
profiles
exosomes
derived
from
(RA-exosomes)
those
HCs
(HC-exosomes)
were
detected
microarray
analysis,
miR-17
measured
quantitative
real-time
PCR.
Transforming
growth
factor
beta
receptor
II
(TGFBR
II)
expressed
interaction
between
TGFBR
evaluated
dual-luciferase
reporter
assay.
Results:
We
found
that
RA-exosomes
can
selectively
affect
Treg
differentiation
vitro.
Several
miRNAs
more
abundant
than
HC-exosomes.
Among
upregulated
RA,
suppress
induction
inhibiting
II.
Conclusion:
Our
findings
imply
altered
miRNA
may
contribute
to
pathogenesis
disrupting
homeostasis
Tregs.
Brain Sciences,
Journal Year:
2020,
Volume and Issue:
10(5), P. 305 - 305
Published: May 18, 2020
In
the
Russian
Federation,
multiple
sclerosis
prevalence
rates
vary
from
10
to
80
cases
per
100,000,
depending
on
region
and
nationality
of
population.
The
main
characteristics
epidemiology
in
XX
century
this
big
territory
are:
(1)
steady
increase
incidence
rates,
maybe
because
better
diagnosis
treatment,
but
also
changes
environmental/epigenetic
risk
profile
and/or
lifestyle
factors;
(2)
female
male
ratio,
mainly
females;
(3)
appearance
increasing
frequency
ethnic
groups,
previously
free
(Northern
Tribes,
Yakuts
others).
latest
data
show
that
European
Russia,
varies
30
cases,
Siberia—from
20
70
with
increases,
especially
women.
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(6), P. 3383 - 3383
Published: March 21, 2022
Introduction:
Multiple
Sclerosis
(MS)
is
the
most
common
immune-mediated
chronic
neurodegenerative
disease
of
central
nervous
system
(CNS)
affecting
young
people.
This
due
to
permanent
disability,
cognitive
impairment,
and
enormous
detrimental
impact
MS
can
exert
on
a
patient’s
health-related
quality
life.
It
great
importance
recognise
it
in
time
commence
adequate
treatment
at
an
early
stage.
The
currently
used
disease-modifying
therapies
(DMT)
aim
reduce
activity
thus
halt
disability
development,
which
current
clinical
practice
are
monitored
by
imaging
parameters
but
not
biomarkers
found
blood
and/or
cerebrospinal
fluid
(CSF).
Both
radiological
measures
routinely
monitor
lack
information
fundamental
pathophysiological
features
mechanisms
MS.
Furthermore,
they
lag
behind
process
itself.
By
relapse
becomes
evident
or
new
lesion
appears
MRI
scan,
potentially
irreversible
damage
has
already
occurred
CNS.
In
recent
years,
several
that
previously
have
been
linked
other
neurological
immunological
diseases
received
increased
attention
Additionally,
novel,
potential
with
prognostic
diagnostic
properties
detected
CSF
patients.
Areas
covered:
this
review,
we
summarise
up-to-date
knowledge
research
conducted
known
promising
biomarker
candidates
Discussion:
criteria
relies
three
pillars:
imaging,
events,
presence
oligoclonal
bands
(which
was
reinstated
into
revision).
Even
though
McDonald
made
diagnosis
faster
than
prior
iteration,
still
infallible
toolset,
especially
very
stage
clinically
isolated
syndrome.
Together
gold
standard
measures,
ancillary
may
just
improve
accuracy
speed
well
become
agents
therapeutic
efficacy
make
even
more
personalised
reality
near
future.
major
disadvantage
these
past
need
obtain
measure
them.
However,
advances
extremely
sensitive
immunoassays
their
measurement
possible
from
peripheral
when
present
only
minuscule
concentrations.
should
mark
beginning
utilisation
era
Aging,
Journal Year:
2019,
Volume and Issue:
11(13), P. 4463 - 4477
Published: July 15, 2019
T
helper
17
(Th17)
cells
are
regarded
as
key
factors
in
the
pathogenesis
of
multiple
sclerosis
(MS).
Although
involvement
certain
microRNAs
(miRNAs)
development
MS
has
been
reported,
their
roles
Th17
cell
differentiation
and
remain
elusive.
In
this
study,
we
identified
that
let-7f-5p
expression
is
significantly
downregulated
CD4+
from
patients
during
process
differentiation.
The
overexpression
suppressed
differentiation,
whereas
knockdown
enhanced
progress.
We
then
explored
molecular
mechanism
through
which
signal
transducer
activator
transcription
3
(STAT3),
a
pivotal
factor
cells,
direct
target
let-7f-5p.
contrast
to
let-7f-5p,
STAT3
p-STAT3
protein
levels
were
dramatically
upregulated
inversely
correlated
with
peripheral
blood
patients.
conclusion,
functions
potential
inhibitor
by
targeting
may
serve
new
therapeutic
target.