Biomedicine & Pharmacotherapy,
Год журнала:
2023,
Номер
163, С. 114846 - 114846
Опубликована: Май 9, 2023
The
emergence
of
drug
resistance
and
metastasis
has
long
been
a
difficult
problem
for
cancer
treatment.
Recent
studies
have
shown
that
stem
cell
populations
are
key
factors
in
the
regulation
aggressiveness,
relapse
resistance.
Cancer
(CSC)
highly
plastic
self-renewing,
giving
them
unique
metabolic,
metastatic,
chemotherapy
properties.
N6-methyladenosine
(m6A)
is
most
abundant
internal
modification
mRNA
involved
variety
growth
development
processes,
including
RNA
transcription,
alternative
splicing,
degradation,
translation.
It
also
linked
to
various
cancers.
At
present,
important
role
m6A
tumour
progression
gradually
attracting
attention,
especially
stemness
process.
Abnormal
modifications
regulate
metastasis,
recurrence
This
paper
aims
explore
regulatory
mechanism
CSCs
clinical
therapy,
clarify
its
network,
provide
theoretical
guidance
targets
improvement
therapeutic
effects.
Genomics,
Год журнала:
2023,
Номер
115(5), С. 110671 - 110671
Опубликована: Июнь 21, 2023
The
diverse
cell
types
of
an
organ
have
a
highly
structured
organization
to
enable
their
efficient
and
correct
function.
To
fully
appreciate
gene
functions
in
given
type,
one
needs
understand
how
much,
when
where
the
is
expressed.
Classic
bulk
RNA
sequencing
popular
single
destroy
structural
fail
provide
spatial
information.
However,
location
expression
or
complex
tissue
provides
key
clues
comprehend
neighboring
genes
cells
cross
talk,
transduce
signals
work
together
as
team
complete
job.
functional
requirement
for
content
has
been
driving
force
rapid
development
transcriptomics
technologies
past
few
years.
Here,
we
present
overview
current
with
special
focus
on
commercially
available
currently
being
commercialized
technologies,
highlight
applications
by
category
discuss
experimental
considerations
first
experiment.
Nature,
Год журнала:
2022,
Номер
611(7937), С. 733 - 743
Опубликована: Окт. 26, 2022
Abstract
Colorectal
malignancies
are
a
leading
cause
of
cancer-related
death
1
and
have
undergone
extensive
genomic
study
2,3
.
However,
DNA
mutations
alone
do
not
fully
explain
malignant
transformation
4–7
Here
we
investigate
the
co-evolution
genome
epigenome
colorectal
tumours
at
single-clone
resolution
using
spatial
multi-omic
profiling
individual
glands.
We
collected
1,370
samples
from
30
primary
cancers
8
concomitant
adenomas
generated
1,207
chromatin
accessibility
profiles,
527
whole
genomes
297
transcriptomes.
found
positive
selection
for
in
modifier
genes
recurrent
somatic
alterations,
including
regulatory
regions
cancer
driver
that
were
otherwise
devoid
genetic
mutations.
Genome-wide
alterations
transcription
factor
binding
involved
CTCF,
downregulation
interferon
increased
SOX
HOX
families,
suggesting
involvement
developmental
during
tumourigenesis.
Somatic
heritable
distinguished
cancers.
Mutational
signature
analysis
showed
turn
influences
accumulation
This
provides
map
epigenetic
tumour
heterogeneity,
with
fundamental
implications
understanding
biology.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Март 21, 2024
Single-cell
RNA
sequencing
(scRNA-seq)
has
transformed
our
understanding
of
cell
fate
in
developmental
systems.
However,
identifying
the
molecular
hallmarks
potency
-
capacity
a
to
differentiate
into
other
types
remained
challenging.
Here,
we
introduce
CytoTRACE
2,
an
interpretable
deep
learning
framework
for
characterizing
and
differentiation
states
on
absolute
scale
from
scRNA-seq
data.
Across
31
human
mouse
datasets
encompassing
28
tissue
types,
2
outperformed
existing
methods
recovering
experimentally
determined
levels
covering
entire
range
cellular
ontogeny.
Moreover,
it
reconstructed
temporal
hierarchy
embryogenesis
across
62
timepoints;
identified
pan-tissue
expression
programs
that
discriminate
major
levels;
facilitated
discovery
phenotypes
cancer
linked
survival
immunotherapy
resistance.
Our
results
illuminate
fundamental
feature
biology
provide
broadly
applicable
platform
delineating
single-cell
landscapes
health
disease.
Cell,
Год журнала:
2023,
Номер
186(25), С. 5620 - 5637.e16
Опубликована: Дек. 1, 2023
Colorectal
cancer
exhibits
dynamic
cellular
and
genetic
heterogeneity
during
progression
from
precursor
lesions
toward
malignancy.
Analysis
of
spatial
multi-omic
data
31
human
colorectal
specimens
enabled
phylogeographic
mapping
tumor
evolution
that
revealed
individualized
trajectories
accompanying
microenvironmental
clonal
alterations.
Phylogeographic
ordered
events,
classified
tumors
by
their
evolutionary
dynamics,
placed
regions
along
global
pseudotemporal
encompassing
the
chromosomal
instability
(CIN+)
hypermutated
(HM)
pathways.
Integrated
single-cell
transcriptomic
recurring
epithelial
programs
infiltrating
immune
states
pseudotime.
We
discovered
an
exclusion
signature
(IEX),
consisting
extracellular
matrix
regulators
DDR1,
TGFBI,
PAK4,
DPEP1,
charts
with
CIN+
progression,
is
associated
reduced
cytotoxic
cell
infiltration,
shows
prognostic
value
in
independent
cohorts.
This
atlas
provides
insights
into
tumor-microenvironment
co-evolution,
serving
as
a
resource
for
stratification
targeted
treatments.
Cell,
Год журнала:
2023,
Номер
186(25), С. 5606 - 5619.e24
Опубликована: Дек. 1, 2023
Patient-derived
organoids
(PDOs)
can
model
personalized
therapy
responses;
however,
current
screening
technologies
cannot
reveal
drug
response
mechanisms
or
how
tumor
microenvironment
cells
alter
therapeutic
performance.
To
address
this,
we
developed
a
highly
multiplexed
mass
cytometry
platform
to
measure
post-translational
modification
(PTM)
signaling,
DNA
damage,
cell-cycle
activity,
and
apoptosis
in
>2,500
colorectal
cancer
(CRC)
PDOs
cancer-associated
fibroblasts
(CAFs)
clinical
therapies
at
single-cell
resolution.
compare
patient-
microenvironment-specific
responses
thousands
of
datasets,
"Trellis"-a
scalable,
tree-based
treatment
effect
analysis
method.
Trellis
revealed
that
on-target
blockage
DNA-damage
effects
are
common,
even
chemorefractory
PDOs.
However,
drug-induced
is
rarer,
patient-specific,
aligns
with
cell
PTM
signaling.
We
find
CAFs
regulate
PDO
plasticity-shifting
proliferative
colonic
stem
(proCSCs)
slow-cycling
revival
(revCSCs)
protect
from
chemotherapy.
Nature Ecology & Evolution,
Год журнала:
2023,
Номер
7(4), С. 581 - 596
Опубликована: Март 9, 2023
Spatial
properties
of
tumour
growth
have
profound
implications
for
cancer
progression,
therapeutic
resistance
and
metastasis.
Yet,
how
spatial
position
governs
cell
division
remains
difficult
to
evaluate
in
clinical
tumours.
Here,
we
demonstrate
that
faster
on
the
periphery
leaves
characteristic
genetic
patterns,
which
become
evident
when
a
phylogenetic
tree
is
reconstructed
from
spatially
sampled
cells.
Namely,
rapidly
dividing
peripheral
lineages
branch
more
extensively
acquire
mutations
than
slower-dividing
centre
lineages.
We
develop
Bayesian
state-dependent
evolutionary
phylodynamic
model
(SDevo)
quantifies
these
patterns
infer
differential
rates
between
central
this
approach
accurately
infers
varying
birth
simulated
tumours
across
range
conditions
sampling
strategies.
then
show
SDevo
outperforms
state-of-the-art,
non-cancer
multi-state
methods
ignore
sequence
evolution.
Finally,
apply
single-time-point,
multi-region
sequencing
data
hepatocellular
carcinomas
find
evidence
three-
six-times-higher
rate
edge.
With
increasing
availability
high-resolution,
sequencing,
anticipate
will
be
useful
interrogating
restrictions
could
extended
non-spatial
factors
influence
progression.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Ноя. 29, 2023
Abstract
The
dominant
mutational
signature
in
colorectal
cancer
genomes
is
C
>
T
deamination
(COSMIC
Signature
1)
and,
a
small
subgroup,
mismatch
repair
signatures
6
and
44).
Mutations
common
driver
genes
are
often
not
consistent
with
those
signatures.
Here
we
perform
whole-genome
sequencing
of
normal
colon
crypts
from
patients,
matched
to
previous
multi-omic
tumour
dataset.
We
analyse
that
were
distant
vs
adjacent
the
cancer.
In
contrast
healthy
individuals,
patients
have
high
incidence
pks
+
(polyketide
synthases)
E.coli
(
Escherichia
coli
)
indel
signatures,
this
confirmed
by
metagenomics.
These
compatible
many
clonal
mutations
detected
corresponding
samples,
including
chromatin
modifier
genes,
supporting
their
role
early
tumourigenesis.
results
provide
evidence
potential
carcinogenesis
human
gut.