Integrative analysis of genomic and epigenomic regulation reveals miRNA mediated tumor heterogeneity and immune evasion in lower grade glioma
Communications Biology,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: July 6, 2024
Abstract
The
expression
dysregulation
of
microRNAs
(miRNA)
has
been
widely
reported
during
cancer
development,
however,
the
underling
mechanism
remains
largely
unanswered.
In
present
work,
we
performed
a
systematic
integrative
study
for
genome-wide
DNA
methylation,
copy
number
variation
and
miRNA
data
to
identify
mechanisms
underlying
in
lower
grade
glioma.
We
719
miRNAs
whose
was
associated
with
alterations
or
promoter
methylation.
Integrative
multi-omics
analysis
revealed
four
subtypes
differing
prognoses.
These
glioma
exhibited
distinct
immune-related
characteristics
as
well
clinical
genetic
features.
By
construction
regulatory
network,
identified
candidate
immune
evasion
response
immunotherapy.
Finally,
eight
prognosis
related
were
validated
promote
cell
migration,
invasion
proliferation
through
vitro
experiments.
Our
reveals
crosstalk
among
regulation
glioma,
could
have
important
implications
patient
stratification
development
biomarkers
immunotherapy
approaches.
Language: Английский
Mechanisms and technologies in cancer epigenetics
Frontiers in Oncology,
Journal Year:
2025,
Volume and Issue:
14
Published: Jan. 7, 2025
Cancer's
epigenetic
landscape,
a
labyrinthine
tapestry
of
molecular
modifications,
has
long
captivated
researchers
with
its
profound
influence
on
gene
expression
and
cellular
fate.
This
review
discusses
the
intricate
mechanisms
underlying
cancer
epigenetics,
unraveling
complex
interplay
between
DNA
methylation,
histone
chromatin
remodeling,
non-coding
RNAs.
We
navigate
through
tumultuous
seas
dysregulation,
exploring
how
these
processes
conspire
to
silence
tumor
suppressors
unleash
oncogenic
potential.
The
narrative
pivots
cutting-edge
technologies,
revolutionizing
our
ability
decode
epigenome.
From
granular
insights
single-cell
epigenomics
holistic
view
offered
by
multi-omics
approaches,
we
examine
tools
are
reshaping
understanding
heterogeneity
evolution.
also
highlights
emerging
techniques,
such
as
spatial
long-read
sequencing,
which
promise
unveil
hidden
dimensions
regulation.
Finally,
probed
transformative
potential
CRISPR-based
epigenome
editing
computational
analysis
transmute
raw
data
into
biological
insights.
study
seeks
synthesize
comprehensive
yet
nuanced
contemporary
landscape
future
directions
research.
Language: Английский
Mechanistic insights into CDCA gene family-mediated glioblastoma progression: implications for diagnosis, prognosis, and therapeutic targeting
Hereditas,
Journal Year:
2025,
Volume and Issue:
162(1)
Published: March 20, 2025
Abstract
Background
Glioblastoma
(GBM)
is
a
highly
aggressive
brain
tumor
characterized
by
poor
prognosis
and
limited
therapeutic
options.
Understanding
the
molecular
mechanisms
driving
GBM
progression
essential
for
developing
more
effective
diagnostic
approaches.
Specifically,
investigating
Cell
Division
Cycle-Associated
(CDCA)
genes
offers
new
perspectives
on
cell
cycle
regulation
proliferation
of
cells,
which
are
key
factors
in
growth
resistance
to
treatment.
These
have
not
been
extensively
studied
GBM,
making
them
promising
area
targeted
research
potential
interventions.
This
project
was
launched
elucidate
pathogenic,
diagnostic,
roles
CDCA
GBM.
Methodology
Total
RNA
extracted
from
lines
followed
RT-qPCR
analyze
expression
genes.
The
validation,
prognostic
significance,
mutational
analysis
were
performed
using
various
databases.
Functional
assays,
including
gene
knockdown,
colony
formation,
proliferation,
wound
healing,
conducted
U87MG
cells
assess
role
CDCA7
CDCA8
Results
12
6
normal
revealed
significant
overexpression
these
ROC
curve
demonstrated
excellent
potential,
with
AUC
values
1
most
indicates
that
effectively
distinguishes
cells.
Validation
additional
TCGA
data
confirmed
upregulation
tumors,
association
cancer-related
pathways.
Survival
showed
higher
correlated
patients.
Mutation,
CNV,
methylation
analyses
alterations
genes,
further
supporting
their
Additionally,
linked
immune
modulation
cycle-related
functions,
suggesting
involvement
evasion
proliferation.
Knockdown
experiments
reduction
migration,
highlighting
as
targets.
Conclusion
Overall,
our
findings
suggest
could
serve
both
biomarkers
targets
Language: Английский
CAR T Cells in Lung Cancer: Targeting Tumor-Associated Antigens to Revolutionize Immunotherapy
Pathology - Research and Practice,
Journal Year:
2025,
Volume and Issue:
unknown, P. 155947 - 155947
Published: March 1, 2025
Language: Английский
New Machine Learning Method for Medical Image and Microarray Data Analysis for Heart Disease Classification
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Microarray
technology
has
become
a
vital
tool
in
cardiovascular
research,
enabling
the
simultaneous
analysis
of
thousands
gene
expressions.
This
capability
provides
robust
foundation
for
heart
disease
classification
and
biomarker
discovery.
However,
high
dimensionality,
noise,
sparsity
microarray
data
present
significant
challenges
effective
analysis.
Gene
selection,
which
aims
to
identify
most
relevant
subset
genes,
is
crucial
preprocessing
step
improving
accuracy,
reducing
computational
complexity,
enhancing
biological
interpretability.
Traditional
selection
methods
often
fall
short
capturing
complex,
nonlinear
interactions
among
limiting
their
effectiveness
tasks.
In
this
study,
we
propose
novel
framework
that
leverages
deep
neural
networks
(DNNs)
optimizing
using
data.
DNNs,
known
ability
model
patterns,
are
integrated
with
feature
techniques
address
high-dimensional
The
proposed
method,
DeepGeneNet
(DGN),
combines
DNN-based
into
unified
framework,
ensuring
performance
meaningful
insights
underlying
mechanisms.
Additionally,
incorporates
hyperparameter
optimization
innovative
U-Net
segmentation
further
enhance
accuracy.
These
optimizations
enable
DGN
deliver
scalable
results,
outperforming
traditional
both
predictive
accuracy
Experimental
results
demonstrate
approach
significantly
improves
compared
other
methods.
By
focusing
on
interplay
between
learning,
work
advances
field
genomics,
providing
interpretable
future
applications.
Language: Английский
Roles of anoikis in hepatocellular carcinoma therapy and the assessment of anoikis-regulatory molecules as therapeutic targets
Naunyn-Schmiedeberg s Archives of Pharmacology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 4, 2025
Language: Английский
Tumor-educated platelets in lung cancer
Clinica Chimica Acta,
Journal Year:
2025,
Volume and Issue:
unknown, P. 120307 - 120307
Published: April 1, 2025
Language: Английский
Sonoporation with Echogenic Liposomes: The Evaluation of Glioblastoma Applicability Using In Vivo Xenograft Models
Ju Hyun Park,
No information about this author
Yoo-Kyung Lee,
No information about this author
Hana Lee
No information about this author
et al.
Pharmaceutics,
Journal Year:
2025,
Volume and Issue:
17(4), P. 509 - 509
Published: April 11, 2025
Objective:
In
previous
studies,
echogenic
liposomes
with
liquid
and
gas
cores
were
analyzed
as
alternative
carriers
of
drug
molecules
cavitation
nuclei
for
sonoporation.
The
possibility
small
interfering
RNA
(si-RNA)
encapsulation
has
also
been
presented.
this
study,
the
usability
seeds
was
evaluated
using
an
in
vivo
model.
Methods:
A
doxorubicin-loaded
liposome
synthesized
a
carrier.
size
distribution
number
formed
measured.
Five
comparative
experiments
conducted
without
liposomes,
results
statically
analyzed.
Results:
Sonoporation
at
3.05
W/cm2
ISPTA
ultrasound
sonication
0.98
MHz
average
tumor
volume
growth
less
than
25%
that
following
simple
administration
doxorubicin.
Considering
p-value
between
two
groups
is
approximately
0.03,
effectively
applicable
Conclusions:
Although
further
studies
are
needed
to
clarify
responses
incident
fields,
proposed
appears
be
promising
nuclei/carrier
Language: Английский
Bio-characteristics, tissue expression of miR-375 in hypothalamic-pituitary-ovarian axis and its regulation in reproduction-related diseases
Suxia Sun,
No information about this author
Binglei Zhang,
No information about this author
Wanhang Jia
No information about this author
et al.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 9, 2024
Our
study
concentrated
on
the
expression
of
miRNA-375
in
hypothalamic-pituitary-gonadal
axis
female
Hu
sheep.
The
investigation
involved
cloning
precursor
sequence
miR-NA-375,
followed
by
comparison
with
database
entries
and
subsequent
Gene
Ontology
(GO)
Kyoto
Encyclopedia
Genes
Genomes
(KEGG)
enrichment
analyses.
In
our
approach,
we
obtained
ovaries,
thalamus,
cerebellum,
brain,
uterus,
pituitary
gland,
hypothalamus,
pineal
gland
from
fertile
but
nonpregnant
ewes.
MiRNA
extraction
kit
was
used
to
extract
miRNA
above
eight
tissues.
Real-time
fluorescent
quantitative
polymerase
chain
reaction
evaluate
role
miR-375
hy-pothalamic-pituitary-gonadal
axis.
results
were
compared
those
Anopheles
gambiae,
Apis
mellifera,
Bos
taurus,
Drosophila
melanogaster,
Danio
rerio,
Fugu
rubripes,
Gallus
gallus,
Homo
sapiens,
Monodelphis
domestica,
Macaca
mulatta,
Mus
musculus,
Pan
troglodytes,
Rattus
norvegicus,
Tetraodon
nigroviridis,
Xenopus
tropicalis
miRBase
database.
It
found
that
oar-miR-375
highly
conserved.
Notably,
significantly
higher
(p
<
0.01)
than
hypothalamus.
also
predicting
target
genes.
GO
KEGG
analyses
these
predicted
genes
revealed
is
182
biological
processes,
affects
186
cellular
components,
participates
184
molecular
functions.
terms
pathway
enrichment,
linked
nine
pathways,
including
Hippo,
Wnt,
mTOR
signaling
pathways.
This
has
validated
interaction
between
its
gene
FZD4,
which
can
be
recognized
bound
produce
effects.
These
findings
lead
inference
may
play
a
crucial
regulatory
sheep
reproduction
through
Hippo
Wnt
pathway,
laying
foundation
for
further
exploration
miR-375's
this
domain.
Language: Английский