Journal of Hematology & Oncology,
Journal Year:
2020,
Volume and Issue:
13(1)
Published: Jan. 7, 2020
Abstract
Patient-derived
tumor
xenografts
(PDXs),
in
which
fragments
surgically
dissected
from
cancer
patients
are
directly
transplanted
into
immunodeficient
mice,
have
emerged
as
a
useful
model
for
translational
research
aimed
at
facilitating
precision
medicine.
PDX
susceptibility
to
anti-cancer
drugs
is
closely
correlated
with
clinical
data
patients,
whom
models
been
derived.
Accumulating
evidence
suggests
that
highly
effective
predicting
the
efficacy
of
both
conventional
and
novel
therapeutics.
This
also
allows
“co-clinical
trials,”
pre-clinical
investigations
vivo
trials
could
be
performed
parallel
or
sequentially
assess
drug
PDXs.
However,
heterogeneity
present
original
samples
constitutes
an
obstacle
application
models.
Moreover,
human
stromal
cells
originally
tumors
gradually
replaced
by
host
xenograft
grows.
replacement
murine
stroma
preclude
analysis
tumor-stroma
interactions,
some
mouse
cytokines
might
not
affect
carcinoma
The
review
highlights
biological
significance
three-dimensional
patient-derived
organoid
cultures
several
kinds
solid
tumors,
such
those
colon,
pancreas,
brain,
breast,
lung,
skin,
ovary.
Science Translational Medicine,
Journal Year:
2019,
Volume and Issue:
11(513)
Published: Oct. 9, 2019
There
is
a
clear
and
unmet
clinical
need
for
biomarkers
to
predict
responsiveness
chemotherapy
cancer.
We
developed
an
in
vitro
test
based
on
patient-derived
tumor
organoids
(PDOs)
from
metastatic
lesions
identify
nonresponders
standard-of-care
colorectal
cancer
(CRC).
In
prospective
study,
we
show
the
feasibility
of
generating
testing
PDOs
evaluation
sensitivity
chemotherapy.
Our
PDO
predicted
response
biopsied
lesion
more
than
80%
patients
treated
with
irinotecan-based
therapies
without
misclassifying
who
would
have
benefited
treatment.
This
correlation
was
specific
chemotherapy,
however,
failed
outcome
treatment
5-fluorouracil
plus
oxaliplatin.
data
suggest
that
could
be
used
prevent
undergoing
ineffective
Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 5, 2019
Abstract
Lung
cancer
shows
substantial
genetic
and
phenotypic
heterogeneity
across
individuals,
driving
a
need
for
personalised
medicine.
Here,
we
report
lung
organoids
normal
bronchial
established
from
patient
tissues
comprising
five
histological
subtypes
of
non-neoplastic
mucosa
as
in
vitro
models
representing
individual
patient.
The
recapitulate
the
tissue
architecture
primary
tumours
maintain
genomic
alterations
original
during
long-term
expansion
vitro.
cellular
components
mucosa.
respond
to
drugs
based
on
their
alterations:
BRCA2-mutant
organoid
olaparib,
an
EGFR-mutant
erlotinib,
EGFR-mutant/MET-amplified
crizotinib.
Considering
short
length
time
establishment
drug
testing,
our
newly
developed
model
may
prove
useful
predicting
patient-specific
responses
through
trials.
Signal Transduction and Targeted Therapy,
Journal Year:
2020,
Volume and Issue:
5(1)
Published: Aug. 11, 2020
Abstract
The
last
3
years
have
seen
the
emergence
of
promising
targeted
therapies
for
treatment
hepatocellular
carcinoma
(HCC).
Sorafenib
has
been
mainstay
a
decade
and
newer
modalities
were
ineffective
did
not
confer
any
increased
therapeutic
benefit
until
introduction
lenvatinib
which
was
approved
based
on
its
non-inferiority
to
sorafenib.
subsequent
success
regorafenib
in
HCC
patients
who
progress
sorafenib
heralded
new
era
second-line
quickly
followed
by
ramucirumab,
cabozantinib,
most
influential,
immune
checkpoint
inhibitors
(ICIs).
Over
same
period
combination
therapies,
including
anti-angiogenesis
agents
with
ICIs,
dual
ICIs
conjunction
surgery
or
other
loco-regional
extensively
investigated
shown
promise
provided
basis
exciting
clinical
trials.
Work
continues
develop
additional
novel
could
potentially
augment
presently
available
options
understand
underlying
mechanisms
responsible
drug
resistance,
goal
improving
survival
HCC.
Organoids
have
attracted
increasing
attention
because
they
are
simple
tissue-engineered
cell-based
in
vitro
models
that
recapitulate
many
aspects
of
the
complex
structure
and
function
corresponding
vivo
tissue.
They
can
be
dissected
interrogated
for
fundamental
mechanistic
studies
on
development,
regeneration,
repair
human
tissues.
also
used
diagnostics,
disease
modeling,
drug
discovery,
personalized
medicine.
derived
from
either
pluripotent
or
tissue-resident
stem
(embryonic
adult)
progenitor
differentiated
cells
healthy
diseased
tissues,
such
as
tumors.
To
date,
numerous
organoid
engineering
strategies
support
culture
growth,
proliferation,
differentiation
maturation
been
reported.
This
Primer
serves
to
highlight
rationale
underlying
selection
development
these
materials
methods
control
cellular/tissue
niche;
therefore,
engineered
organoid.
We
discuss
key
considerations
generating
robust
organoids,
those
related
cell
isolation
seeding,
matrix
soluble
factor
selection,
physical
cues
integration.
The
general
standards
data
quality,
reproducibility
deposition
within
community
is
outlined.
Lastly,
we
conclude
by
elaborating
limitations
organoids
different
applications,
priorities
coming
years.
Annual Review of Pathology Mechanisms of Disease,
Journal Year:
2019,
Volume and Issue:
15(1), P. 211 - 234
Published: Sept. 25, 2019
Organoids
are
in
vitro-cultured
three-dimensional
structures
that
recapitulate
key
aspects
of
vivo
organs.
They
can
be
established
from
pluripotent
stem
cells
and
adult
cells,
the
latter
being
subject
this
review.
derived
exploit
tissue
regeneration
process
is
driven
by
these
they
directly
healthy
or
diseased
epithelium
many
amenable
to
any
experimental
approach
has
been
developed
for
cell
lines.
Applications
biology
involve
modeling
physiology
disease,
including
malignant,
hereditary,
infectious
diseases.
Biobanks
patient-derived
tumor
organoids
used
drug
development
research,
hold
promise
developing
personalized
regenerative
medicine.
In
review,
we
discuss
applications
cell-derived
laboratory
clinic.
Frontiers in Immunology,
Journal Year:
2020,
Volume and Issue:
11
Published: March 6, 2020
Colorectal
cancer
(CRC)
is
highly
heterogeneous
at
the
genetic
and
molecular
level,
which
has
major
repercussions
on
efficacy
of
immunotherapy.
A
small
subset
CRCs
exhibit
microsatellite
instability
(MSI),
a
indicator
defective
DNA
mismatch
repair
(MMR),
but
majority
are
microsatellite-stable
(MSS).
The
high
tumor
mutational
burden
(TMB)
neoantigen
load
in
MSI
tumors
favors
infiltration
immune
effector
cells,
antitumor
responses
within
these
strong
relative
to
their
MSS
counterparts.
emerged
as
predictive
marker
for
checkpoint
blockade
over
last
few
years
nivolumab
or
pembrolizumab
targeting
PD-1
been
approved
patients
with
refractory
metastatic
CRC.
However,
some
show
polymerase
epsilon
(POLE)
mutations
that
also
confer
very
TMB
may
be
heavily
infiltrated
by
cells
making
them
amenable
respond
inhibitors
(ICI).
In
this
review
we
discuss
role
different
landscapes
CRC
relationships
defined
subtypes.
We
potential
reasons
why
met
limited
success
patients,
despite
finding
cell
primary
non-metastatic
prognostic
factor
relapse
survival.
then
consider
ways
develop
mechanisms
resist
ICI.
Finally,
address
latest
advances
vaccination
how
personalized
vaccine
strategy
might
overcome
resistance
whom
not
treatment
option.