Leukemia,
Journal Year:
2023,
Volume and Issue:
37(11), P. 2209 - 2220
Published: Sept. 14, 2023
Abstract
Hematopoietic
stem
cells
(HSCs)
ensure
blood
cell
production
during
the
life-time
of
an
organism,
and
to
do
so
they
need
balance
self-renewal,
proliferation,
differentiation,
migration
in
a
steady
state
as
well
response
stress
or
injury.
Importantly,
aberrant
proliferation
HSCs
leads
hematological
malignancies,
thus,
tight
regulation
by
various
tumor
suppressor
pathways,
including
p53,
is
essential.
Protein
phosphatase
magnesium-dependent
1
delta
(PPM1D)
negative
regulator
p53
promotes
survival
upon
induction
genotoxic
stress.
Truncating
mutations
last
exon
PPM1D
lead
stable,
enzymatically
active
protein
are
commonly
associated
with
clonal
hematopoiesis.
Using
transgenic
mouse
model,
we
demonstrate
that
truncated
reduces
self-renewal
basal
conditions
but
development
aggressive
AML
after
exposure
ionizing
radiation.
Inhibition
suppressed
colony
growth
leukemic
progenitor
carrying
PPM1D,
remarkably,
it
provided
protection
against
irradiation-induced
growth.
Altogether,
affects
HSC
maintenance,
disrupts
normal
hematopoiesis,
its
inhibition
could
be
beneficial
context
therapy-induced
AML.
JOR Spine,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Jan. 25, 2024
Abstract
Background
The
N6‐methyladenosine
(m6A)
dynamics
in
the
progression
of
intervertebral
disc
(IVD)
aging
remain
largely
unknown.
This
study
aimed
to
explore
distribution
and
pattern
m
6
A
modification
nucleus
pulpous
(NP)
tissues
rats
at
different
ages.
Methods
Histological
staining
MRI
were
performed
evaluate
degeneration
IVD.
expression
m6A
modifiers
was
analyzed
using
qRT‐PCR
western
blot.
Subsequently,
methylated
RNA
immunoprecipitation
next
generation
sequencing
RNA‐seq
conducted
identify
differences
methylome
transcriptome
NP
tissues.
Results
Compared
2‐month‐old
rats,
we
found
significant
changes
global
level
Mettl3
FTO
from
20‐month‐old
rats.
During
aging,
there
1126
persistently
differentially
peaks
within
931
genes,
51
expressed
genes.
GO
KEGG
analyses
showed
that
these
modified
genes
mainly
engaged
biological
processes
pathways
degermation
(IDD),
such
as
extracellular
matrix
metabolism,
angiogenesis,
inflammatory
response,
mTOR
AMPK
signaling
pathways.
Meanwhile,
conjoint
Venn
diagram
revealed
a
total
405
related
contained
methylation
levels
contrast
10‐month‐old
Moreover,
it
four
with
hypermethylated
including
BUB1,
CA12,
Adamts1,
Adamts4
depicted
protein
level,
which
BUB1
CA12
decreased,
while
Adamts1
increased
during
aging.
Conclusion
Collectively,
this
elucidated
Furthermore,
involved
IDD
These
findings
may
provide
novel
insights
into
mechanisms
therapies
perspective
Cell & Bioscience,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Sept. 28, 2024
Abstract
N
6
-methyladenosine
(m
A)
represents
the
most
prevalent
internal
and
reversible
modification
on
RNAs.
Different
cell
types
display
their
unique
m
A
profiles,
which
are
determined
by
functions
of
writers
erasers.
M
modifications
lead
to
different
outcomes
such
as
decay,
stabilization,
or
transport
The
A-encoded
epigenetic
information
is
interpreted
readers
interacting
proteins.
essential
for
biological
processes,
defects
in
have
been
discovered
diverse
diseases.
Here,
we
review
latest
advances
roles
development
These
recent
studies
not
only
highlight
importance
regulating
fate
transitions,
but
also
point
potential
application
drugs
targeting
Leukemia,
Journal Year:
2023,
Volume and Issue:
37(11), P. 2209 - 2220
Published: Sept. 14, 2023
Abstract
Hematopoietic
stem
cells
(HSCs)
ensure
blood
cell
production
during
the
life-time
of
an
organism,
and
to
do
so
they
need
balance
self-renewal,
proliferation,
differentiation,
migration
in
a
steady
state
as
well
response
stress
or
injury.
Importantly,
aberrant
proliferation
HSCs
leads
hematological
malignancies,
thus,
tight
regulation
by
various
tumor
suppressor
pathways,
including
p53,
is
essential.
Protein
phosphatase
magnesium-dependent
1
delta
(PPM1D)
negative
regulator
p53
promotes
survival
upon
induction
genotoxic
stress.
Truncating
mutations
last
exon
PPM1D
lead
stable,
enzymatically
active
protein
are
commonly
associated
with
clonal
hematopoiesis.
Using
transgenic
mouse
model,
we
demonstrate
that
truncated
reduces
self-renewal
basal
conditions
but
development
aggressive
AML
after
exposure
ionizing
radiation.
Inhibition
suppressed
colony
growth
leukemic
progenitor
carrying
PPM1D,
remarkably,
it
provided
protection
against
irradiation-induced
growth.
Altogether,
affects
HSC
maintenance,
disrupts
normal
hematopoiesis,
its
inhibition
could
be
beneficial
context
therapy-induced
AML.