Cell Discovery,
Journal Year:
2021,
Volume and Issue:
7(1)
Published: Oct. 27, 2021
Paternal
life
experiences
impact
offspring
health
via
germline,
and
epigenetic
inheritance
provides
a
potential
mechanism.
However,
global
reprogramming
during
embryogenesis
gametogenesis
represents
the
largest
hurdle
to
conceptualize
it.
Yet,
detailed
characterization
of
how
sperm
alterations
carrying
"environmental
memory"
can
evade
embryonic
remains
elusive.
Here,
mice
exposed
long-term
restraint
stress
were
employed
study
mechanisms
underlying
inter-
transgenerational
effects
paternal
exposure
psychological
stress.
We
found
that
could
induce
reproductive,
behavioral,
metabolic
disorders.
Bisulfite
methylation
profiling
18
12
embryo
samples
three
consecutive
generations
identified
Differential
DNA
Methylation
Regions
(DMRs)
at
frequencies
~11.36%
0.48%,
respectively.
These
DMRs
related
genes
with
functional
implications
for
response,
tissue
these
passed
disorders
epigenetically
offspring.
More
importantly,
evaded
through
erasure
subsequent
reestablishment,
but
not
un-erasure
way.
Nonetheless,
their
reestablishment
proportions
in
primitive
streak
(E7.5)
stage
altered.
Furthermore,
sncRNA-seq
revealed
stress-induced
tsRNA,
miRNA
rsRNA
dysregulation
might
play
important
roles
occurrence
inheritance.
finding
implied
contribute
stress,
highlighted
possible
molecular
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: April 20, 2022
Abstract
RNA
modifications
are
important
regulatory
elements
of
functions.
However,
most
genome-wide
mapping
has
focused
on
messenger
RNAs
and
transfer
RNAs,
but
such
datasets
have
been
lacking
for
small
RNAs.
Here
we
mapped
N
1
-methyladenosine
(m
A)
in
the
cellular
space.
Benchmarked
with
synthetic
m
A
our
workflow
identified
specific
groups
A-containing
which
otherwise
disproportionally
under-represented.
In
particular,
22-nucleotides
long
3′
tRNA-fragments
highly
enriched
TRMT6/61A-dependent
located
within
seed
region.
negatively
affects
gene
silencing
by
tRF-3s.
urothelial
carcinoma
bladder,
where
TRMT6/61A
is
over-expressed,
higher
modification
tRFs
detected,
correlated
a
dysregulation
tRF
targetome.
Lastly,
regulates
tRF-3
targets
involved
unfolded
protein
response.
Together,
results
reveal
mechanism
regulating
expression
via
base
RNA.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: April 14, 2023
Abstract
Although
more
studies
are
demonstrating
that
a
father’s
environment
can
influence
child
health
and
disease,
the
molecular
mechanisms
underlying
non-genetic
inheritance
remain
unclear.
It
was
previously
thought
sperm
exclusively
contributed
its
genome
to
egg.
More
recently,
association
have
shown
various
environmental
exposures
including
poor
diet,
toxicants,
stress,
perturbed
epigenetic
marks
in
at
important
reproductive
developmental
loci
were
associated
with
offspring
phenotypes.
The
cellular
routes
underlie
how
transmitted
fertilization,
resist
reprogramming
embryo,
drive
phenotypic
changes
only
now
beginning
be
unraveled.
Here,
we
provide
an
overview
of
state
field
intergenerational
paternal
mammals
present
new
insights
into
relationship
between
embryo
development
three
pillars
inheritance:
chromatin,
DNA
methylation,
non-coding
RNAs.
We
evaluate
compelling
evidence
sperm-mediated
transmission
retention
embryo.
Using
landmark
examples,
discuss
sperm-inherited
regions
may
escape
impact
via
implicate
transcription
factors,
chromatin
organization,
transposable
elements.
Finally,
link
paternally
functional
pre-
post-implantation
Understanding
factors
will
permit
greater
understanding
related
origins
disease.
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
Journal of Hematology & Oncology,
Journal Year:
2023,
Volume and Issue:
16(1)
Published: June 22, 2023
Abstract
Small
RNAs
(also
referred
to
as
small
noncoding
RNAs,
sncRNA)
are
defined
polymeric
ribonucleic
acid
molecules
that
less
than
200
nucleotides
in
length
and
serve
a
variety
of
essential
functions
within
cells.
RNA
species
include
microRNA
(miRNA),
PIWI-interacting
(piRNA),
interfering
(siRNA),
tRNA-derived
(tsRNA),
etc.
Current
evidence
suggest
can
also
have
diverse
modifications
their
nucleotide
composition
affect
stability
well
capacity
for
nuclear
export,
these
relevant
drive
molecular
signaling
processes
biogenesis,
cell
proliferation
differentiation.
In
this
review,
we
highlight
the
characteristics
cellular
modifications,
current
techniques
reliable
detection.
We
discuss
how
may
be
clinical
applications
diagnosis
treatment
human
health
conditions
such
cancer.
Environment International,
Journal Year:
2023,
Volume and Issue:
172, P. 107769 - 107769
Published: Jan. 23, 2023
Exposure
to
ubiquitous
plastic-associated
endocrine
disrupting
chemicals
(EDCs)
is
associated
with
the
increased
risk
of
many
chronic
diseases.
For
example,
phthalate
exposure
cardiometabolic
mortality
in
humans,
societal
costs
∼
$39
billion/year
or
more.
We
recently
demonstrated
that
several
widely
used
EDCs
increase
disease
appropriate
mouse
models.
In
addition
affecting
adult
health,
parental
has
also
been
shown
cause
metabolic
disorders,
including
obesity
and
diabetes,
offspring.
While
most
studies
have
focused
on
impact
maternal
EDC
offspring's
little
known
about
effects
paternal
exposure.
current
study,
we
investigated
adverse
a
but
understudied
phthalate,
dicyclohexyl
(DCHP)
health
F1
F2
offspring
mice.
Paternal
DCHP
led
exacerbated
insulin
resistance
impaired
signaling
without
diet-induced
obesity.
previously
showed
sperm
small
non-coding
RNAs
tRNA-derived
(tsRNAs)
rRNA-derived
(rsRNAs)
contribute
intergenerational
transmission
paternally
acquired
disorders.
Using
novel
PANDORA-seq,
revealed
can
lead
tsRNA/rsRNA
landscape
changes
were
undetected
by
traditional
RNA-seq,
which
may
DCHP-elicited
effects.
Lastly,
found
sex-specific
transgenerational
elicited
glucose
intolerance
female
descendants.
Our
results
suggest
phthalates
their
These
findings
our
understanding
etiology
human
diseases
originating
from
chemical-elicited
Molecular Cell,
Journal Year:
2023,
Volume and Issue:
83(22), P. 3953 - 3971
Published: Oct. 5, 2023
tRNA
function
is
based
on
unique
structures
that
enable
mRNA
decoding
using
anticodon
trinucleotides.
These
interact
with
specific
aminoacyl-tRNA
synthetases
and
ribosomes
3D
shape
sequence
signatures.
Beyond
translation,
tRNAs
serve
as
versatile
signaling
molecules
interacting
other
RNAs
proteins.
Through
evolutionary
processes,
fragmentation
emerges
not
merely
random
degradation
but
an
act
of
recreation,
generating
shorter
called
tRNA-derived
small
(tsRNAs).
tsRNAs
exploit
their
linear
sequences
newly
arranged
for
unexpected
biological
functions,
epitomizing
the
"renovatio"
(from
Latin,
meaning
renewal,
renovation,
rebirth).
Emerging
methods
to
uncover
full
tRNA/tsRNA
modifications,
combined
techniques
study
RNA
integrate
AI-powered
predictions,
will
comprehensive
investigations
products
new
interaction
potentials
in
relation
functions.
We
anticipate
these
directions
herald
a
era
understanding
complexity
advancing
pharmaceutical
engineering.