Cancers,
Journal Year:
2024,
Volume and Issue:
16(8), P. 1588 - 1588
Published: April 20, 2024
Bladder
cancer
(BC)
diagnosis
is
reliant
on
cystoscopy,
an
invasive
procedure
associated
with
urinary
tract
infections.
This
has
sparked
interest
in
identifying
noninvasive
biomarkers
body
fluids
such
as
blood
and
urine.
A
source
of
these
biofluids
are
extracellular
vesicles
(EVs),
nanosized
that
contain
a
wide
array
molecular
cargo,
including
small
noncoding
RNA
transfer
RNA-derived
fragments
(tRF)
microRNA.
Here,
we
performed
small-RNA
next-generation
sequencing
from
EVs
urine
serum,
well
serum
supernatant.
was
extracted
15
non-cancer
patients
(NCPs)
benign
findings
cystoscopy
41
non-muscle
BC.
Urine
were
collected
before
transurethral
resection
bladder
tumors
(TUR-b)
at
routine
post-surgery
check-ups.
We
compared
levels
tRFs
pre-surgery
samples
to
NCPs
To
further
verify
our
findings,
10
stage
T1
disease
resequenced.
When
comparing
tRF
expression
between
BC
NCPs,
14
differentially
expressed
(DEtRFs)
identified.
In
supernatant,
six
DEtRFs
identified
among
when
four
found
NCPs.
By
performing
blast
search,
sequences
aligned
genomic
pertaining
processes
relevant
development,
enhancers,
regulatory
elements
CpG
islands.
Our
display
number
may
hold
potential
for
the
recurrence-free
survival
Molecular Cancer,
Journal Year:
2023,
Volume and Issue:
22(1)
Published: Feb. 13, 2023
Abstract
tRNA-derived
fragments
(tRFs)
are
an
emerging
category
of
small
non-coding
RNAs
that
generated
from
cleavage
mature
tRNAs
or
tRNA
precursors.
The
advance
in
high-throughput
sequencing
has
contributed
to
the
identification
increasing
number
tRFs
with
critical
functions
distinct
physiological
and
pathophysiological
processes.
can
regulate
cell
viability,
differentiation,
homeostasis
through
multiple
mechanisms
thus
considered
as
regulators
human
diseases
including
cancer.
In
addition,
evidence
suggest
extracellular
may
be
utilized
promising
diagnostic
prognostic
biomarkers
for
cancer
liquid
biopsy.
this
review,
we
focus
on
biogenesis,
classification
modification
tRFs,
summarize
multifaceted
emphasis
current
research
status
perspectives
International Journal of Molecular Sciences,
Journal Year:
2021,
Volume and Issue:
22(19), P. 10193 - 10193
Published: Sept. 22, 2021
The
widespread
implementation
of
mass
sequencing
has
revealed
a
diverse
landscape
small
RNAs
derived
from
larger
precursors.
Whilst
many
these
are
likely
to
be
byproducts
degradation,
there
nevertheless
metabolically
stable
fragments
tRNAs,
rRNAs,
snoRNAs,
and
other
non-coding
RNA,
with
number
examples
the
production
such
being
conserved
across
species.
Coupled
specific
interactions
RNA-binding
proteins
growing
experimentally
reported
suggesting
function,
case
is
emerging
whereby
biological
significance
extends
far
beyond
miRNAs
piRNAs.
Related
this,
similarly
complex
picture
non-canonical
roles
for
precursors,
as
snoRNAs
that
also
implicated
in
areas
silencing
gene
expression
regulation
alternative
splicing.
This
addition
body
literature
describing
an
additional
source
miRNA-like
regulators.
review
seeks
highlight
focusing
specifically
on
"new"
them.
Genes & Diseases,
Journal Year:
2022,
Volume and Issue:
9(6), P. 1431 - 1442
Published: Jan. 10, 2022
Transfer
RNAs
(tRNAs)
are
essential
for
protein
synthesis.
Mature
or
pre-tRNAs
may
be
cleaved
to
produce
tRNA-derived
small
(tsRNAs).
tsRNAs,
divided
into
stress-induced
RNA
(tiRNAs)
and
fragments
(tRFs),
play
versatile
roles
in
a
number
of
fundamental
biological
processes.
tsRNAs
not
only
regulatory
gene
silencing,
stability,
reverse
transcription,
translation,
but
also
closely
related
cell
proliferation,
migration,
cycle,
apoptosis.
Their
abnormal
expression
is
associated
with
the
occurrence
development
various
human
diseases,
especially
cancer.
This
paper
reviews
classification,
biogenesis,
mechanism
action
research
progress
date
on
cancers.
These
findings
provide
new
opportunities
diagnostic
biomarkers
treatment
targets
several
types
cancers
including
gastric
cancer,
colorectal
hepatocellular
carcinomas,
pancreatic
breast
prostate
renal
carcinoma,
ovarian
lung
bladder
thyroid
oral
leukemia.
Cell Death and Disease,
Journal Year:
2023,
Volume and Issue:
14(11)
Published: Nov. 16, 2023
tRNA-derived
small
RNAs
(tsRNAs)
are
non-coding
produced
by
specific
endonucleases
following
the
processing
and
splicing
of
precursor
or
mature
tRNAs
upon
starvation,
oxidative
stress,
hypoxia,
other
adverse
conditions.
classified
into
two
major
categories,
tRNA
fragments
(tRFs)
stress-induced
(tiRNAs),
based
on
differences
in
splice
sites.
With
development
high-throughput
sequencing
technologies
recent
years,
tsRNAs
have
been
found
to
important
biological
functions,
including
inhibition
apoptosis,
epigenetic
regulation,
cell-cell
communication,
translation,
regulation
gene
expression.
Additionally,
these
molecules
be
aberrantly
expressed
various
diseases
involved
several
pathological
processes.
In
this
article,
classification
nomenclature,
potential
use
as
diagnostic
biomarkers
therapeutic
targets
non-neoplastic
reviewed.
Although
tsRNA
research
is
at
its
infancy,
their
treatment
non-tumor
warrants
further
investigation.
British Journal of Haematology,
Journal Year:
2024,
Volume and Issue:
204(5), P. 1790 - 1800
Published: Feb. 27, 2024
Summary
Despite
the
substantial
progress
in
multiple
myeloma
(MM)
therapy
nowadays,
treatment
resistance
and
disease
relapse
remain
major
clinical
hindrances.
Herein,
we
have
investigated
tRNA‐derived
fragment
(tRF)
profiles
MM
precursor
stages
(smoldering
MM/sMM;
monoclonal
gammopathy
of
undetermined
significance/MGUS),
aiming
to
unveil
potential
MM‐related
tRFs
ameliorating
prognosis
risk
stratification.
Small
RNA‐seq
was
performed
profile
bone
marrow
CD138
+
plasma
cells,
revealing
significant
deregulation
mitochondrial
internal
tRF
HisGTG
(mt‐i‐tRF
)
versus
sMM/MGUS.
The
screening
cohort
study
consisted
147
patients,
mt‐i‐tRF
levels
were
quantified
by
RT‐qPCR.
Disease
progression
assessed
as
end‐point
for
survival
analysis,
while
validation
bootstrap
decision
curve
analyses.
Screening
analysis
highlighted
potent
association
reduced
with
patients'
(
p
=
0.010),
osteolysis
0.023)
significantly
higher
short‐term
following
first‐line
chemotherapy,
independently
data
(HR
1.954;
0.036).
Additionally,
‐fitted
multivariate
models
led
superior
stratification
outcome
compared
disease‐established
markers.
Notably,
our
loss
a
powerful
independent
indicator
post‐treatment
leading
outcome.
Cancers,
Journal Year:
2021,
Volume and Issue:
14(1), P. 24 - 24
Published: Dec. 22, 2021
Epithelial
ovarian
cancer
(EOC)
remains
a
highly-lethal
gynecological
malignancy,
characterized
by
frequent
recurrence,
chemotherapy
resistance
and
poor
5-year
survival.
Identifying
novel
predictive
molecular
markers
an
overdue
challenge
in
the
disease's
clinical
management.
Herein,
silico
analysis
of
TCGA-OV
highlighted
tRNA-derived
internal
fragment
(i-tRF-GlyGCC)
among
most
abundant
tRFs
tumors,
while
target
prediction
gene
ontology
(GO)
enrichment
predicted
its
implication
key
biological
processes.
Thereafter,
i-tRF-GlyGCC
levels
were
quantified
screening
EOC
(n
=
98)
institutionally-independent
serous
(SOC)
validation
cohort
100,
OVCAD
multicenter
study).
Disease
progression
patient
death
used
as
endpoints
for
survival
analysis.
Internal
was
performed
bootstrap
net
benefit
estimated
decision
curve
The
significant
association
with
advanced
FIGO
stages,
suboptimal
debulking
importantly,
early
overall
patients.
corroborated
unfavorable
value
EOC.
Ultimately,
evaluation
established/clinically
prognostic
offered
superior
risk-stratification
enhanced
prognosis.
In
conclusion,
assessment
could
aid
towards
personalized
prognosis
support
precision
medicine
decisions
Bioengineered,
Journal Year:
2022,
Volume and Issue:
13(2), P. 2087 - 2098
Published: Jan. 14, 2022
Breast
cancer
(BC)
is
a
serious
threat
to
female
health.
tRNA-derived
fragments
(tRFs)
are
popular
biomarkers
for
the
diagnosis
and
treatment
of
cancer.
The
purpose
this
study
was
identify
tRFs
related
BC
explore
function
regulatory
mechanism
crucial
in
cells.
Small
RNA
database
used
detect
tRF
profiles
from
patients
controls.
Differentially
expressed
were
determined
by
quantitative
reverse
transcription
PCR
(RT-qPCR),
evaluated
through
silence
overexpression
experiments,
target
gene
investigated
luciferase
reporter
assay,
Western
blot
rescue
experiment.
We
screened
tRF-19-W4PU732S,
which
processed
mature
tRNA-Ser-AGA,
significantly
highlyexpressed
tissues
Inhibition
tRF-19-W4PU732S
weakened
MDA-MB-231
cell
proliferation,
migration
invasion,
while
enhanced
apoptosis.
On
contrary,
promoted
MCF-7
whereasreduced
Furthermore,
induced
epithelial-to-mesenchymal
transition
(EMT)
stem-like
cells
(CSC)
phenotypes,
such
as
up-regulation
OCT-4A,
SOX2
Vimentin
down-regulation
E-cadherin.
Ribosomal
protein-L27A
(RPL27A)
downstream
lowly
knockdown
RPL27A
expression
partially
restored
promoting
effects
on
viability,
migration,
EMT
CSC
suppression
In
conclusion,
our
results
manifested
that
promotes
malignant
activity
inhibiting
RPL27A,
provides
new
scientific
basis
BC.Abbreviations
BC:
breast
cancer;
tRNAs:
transfer
RNAs;
tiRNAs:
stressinduced
tRFs:
fragments;
CCK-8:
Cell
Counting
Kit-8;
PI:
propidium
iodide;
EMT:
transition;
CSC:
cells;
RPL27A:
ribosomal
protein-L27A;
RT-qPCR:
PCR.