Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(4), P. 113988 - 113988
Published: March 22, 2024
The
basal
breast
cancer
subtype
is
enriched
for
triple-negative
(TNBC)
and
displays
consistent
large
chromosomal
deletions.
Here,
we
characterize
evolution
maintenance
of
chromosome
4p
(chr4p)
loss
in
cancer.
Analysis
Cancer
Genome
Atlas
data
shows
recurrent
deletion
chr4p
Phylogenetic
analysis
a
panel
23
primary
tumor/patient-derived
xenograft
cancers
reveals
early
deletion.
Mechanistically
show
that
associated
with
enhanced
proliferation.
Gene
function
studies
identify
an
unknown
gene,
C4orf19,
within
chr4p,
which
suppresses
proliferation
when
overexpressed—a
member
the
PDCD10-GCKIII
kinase
module
name
PGCKA1.
Genome-wide
pooled
overexpression
screens
using
barcoded
library
human
open
reading
frames
regions,
including
suppress
overexpressed
context-dependent
manner,
implicating
network
interactions.
Together,
these
results
shed
light
on
emergence
complex
aneuploid
karyotypes
involving
adaptive
landscapes
shaping
genomes.
Cell,
Journal Year:
2021,
Volume and Issue:
184(8), P. 2239 - 2254.e39
Published: April 1, 2021
Intra-tumor
heterogeneity
(ITH)
is
a
mechanism
of
therapeutic
resistance
and
therefore
an
important
clinical
challenge.
However,
the
extent,
origin,
drivers
ITH
across
cancer
types
are
poorly
understood.
To
address
this,
we
extensively
characterize
whole-genome
sequences
2,658
samples
spanning
38
types.
Nearly
all
informative
(95.1%)
contain
evidence
distinct
subclonal
expansions
with
frequent
branching
relationships
between
subclones.
We
observe
positive
selection
driver
mutations
most
identify
type-specific
patterns
gene
mutations,
fusions,
structural
variants,
copy
number
alterations
as
well
dynamic
changes
in
mutational
processes
expansions.
Our
results
underline
importance
its
tumor
evolution
provide
pan-cancer
resource
comprehensively
annotated
events
from
sequencing
data.
British Journal of Cancer,
Journal Year:
2021,
Volume and Issue:
124(11), P. 1759 - 1776
Published: March 29, 2021
Abstract
Cancer
is
a
leading
cause
of
death
worldwide
and,
despite
new
targeted
therapies
and
immunotherapies,
many
patients
with
advanced-stage-
or
high-risk
cancers
still
die,
owing
to
metastatic
disease.
Adoptive
T-cell
therapy,
involving
the
autologous
allogeneic
transplant
tumour-infiltrating
lymphocytes
genetically
modified
T
cells
expressing
novel
receptors
chimeric
antigen
receptors,
has
shown
promise
in
treatment
cancer
patients,
durable
responses
some
cases,
cure.
Technological
advances
genomics,
computational
biology,
immunology
cell
manufacturing
have
brought
aspiration
individualised
for
closer
reality.
This
era
cell-based
therapeutics
challenges
traditional
standards
therapeutic
interventions
provides
opportunities
paradigm
shift
our
approach
therapy.
Invited
speakers
at
2020
symposium
discussed
three
areas—cancer
cell-therapy
manufacturing—that
are
essential
effective
translation
solid
malignancies.
Key
been
made
understanding
genetic
intratumour
heterogeneity,
strategies
accurately
identify
neoantigens,
overcome
exhaustion
circumvent
tumour
immunosuppression
after
infusion
being
developed.
Advances
cell-manufacturing
approaches
that
potential
establish
cell-therapies
as
credible
options.
face
but
hold
great
improving
clinical
outcomes
tumours.
Science,
Journal Year:
2021,
Volume and Issue:
373(6556), P. 760 - 767
Published: Aug. 12, 2021
Identifying
the
origin
of
cancer
Many
cancers
are
classified
on
basis
organ
or
tissue
from
which
they
originated.
However,
identifying
specific
cells
and
conditions
that
precede
tumorigenesis
can
help
us
understand
better
treat
resulting
disease.
Nowicki-Osuch
et
al
.
used
a
single-cell
approach
to
investigate
cell
for
Barrett’s
esophagus
(BE)
mechanisms
leading
development
esophageal
adenocarcinoma
(EAC)
(see
Perspective
by
Geboes
Hoorens).
Analyses
healthy
human
tissues,
mutational
lineage
tracing,
organoid
models
revealed
BE
originates
gastric
cardia
EAC
arises
undifferentiated
cells.
This
analysis
provides
map
transcriptional
landscape
be
compared
with
mouse
—LMZ
Nature Medicine,
Journal Year:
2022,
Volume and Issue:
28(8), P. 1662 - 1671
Published: Aug. 1, 2022
Abstract
Richter
transformation
(RT)
is
a
paradigmatic
evolution
of
chronic
lymphocytic
leukemia
(CLL)
into
very
aggressive
large
B
cell
lymphoma
conferring
dismal
prognosis.
The
mechanisms
driving
RT
remain
largely
unknown.
We
characterized
the
whole
genome,
epigenome
and
transcriptome,
combined
with
single-cell
DNA/RNA-sequencing
analyses
functional
experiments,
19
cases
CLL
developing
RT.
Studying
54
longitudinal
samples
covering
up
to
years
disease
course,
we
uncovered
minute
subclones
carrying
genomic,
immunogenetic
transcriptomic
features
cells
already
at
diagnosis,
which
were
dormant
for
before
transformation.
also
identified
new
driver
alterations,
discovered
mutational
signature
(SBS-RT),
recognized
an
oxidative
phosphorylation
(OXPHOS)
high
–B
receptor
(BCR)
low
-signaling
transcriptional
axis
in
showed
that
OXPHOS
inhibition
reduces
proliferation
cells.
These
findings
demonstrate
early
seeding
advanced
stages
cancer
uncover
potential
therapeutic
targets