British Journal of Cancer,
Journal Year:
2022,
Volume and Issue:
126(12), P. 1663 - 1675
Published: Feb. 28, 2022
Abstract
The
binding
of
T
cell
immune
checkpoint
proteins
programmed
death
1
(PD-1)
and
cytotoxic
T-lymphocyte-associated
protein
4
(CTLA-4)
to
their
ligands
allows
evasion
by
tumours.
development
therapeutic
antibodies,
termed
inhibitors,
that
bind
these
molecules
or
ligands,
has
provided
a
means
release
this
brake
on
the
host
anti-tumour
response.
However,
drugs
are
costly,
associated
with
potentially
severe
side
effects,
only
benefit
small
subset
patients.
It
is
therefore
important
identify
biomarkers
discriminate
between
responders
non-responders.
This
review
discusses
determinants
for
successful
response
antibodies
PD-1
its
ligand
PD-L1,
dividing
them
into
markers
found
in
tumour
biopsy
those
non-tumour
samples.
provides
an
update
established
predictive
(tumour
PD-L1
expression,
mismatch
repair
deficiency
mutational
burden)
assesses
evidence
new
potential
biomarkers.
New England Journal of Medicine,
Journal Year:
2021,
Volume and Issue:
384(12), P. 1125 - 1135
Published: Feb. 12, 2021
Patients
with
advanced
urothelial
carcinoma
have
poor
overall
survival
after
platinum-containing
chemotherapy
and
programmed
cell
death
protein
1
(PD-1)
or
ligand
(PD-L1)
inhibitor
treatment.We
conducted
a
global,
open-label,
phase
3
trial
of
enfortumab
vedotin
for
the
treatment
patients
locally
metastatic
who
had
previously
received
disease
progression
during
PD-1
PD-L1
inhibitor.
were
randomly
assigned
in
1:1
ratio
to
receive
(at
dose
1.25
mg
per
kilogram
body
weight
on
days
1,
8,
15
28-day
cycle)
investigator-chosen
(standard
docetaxel,
paclitaxel,
vinflunine),
administered
day
21-day
cycle.
The
primary
end
point
was
survival.A
total
608
underwent
randomization;
301
307
chemotherapy.
As
July
15,
2020,
deaths
occurred
(134
group
167
group).
At
prespecified
interim
analysis,
median
follow-up
11.1
months.
Overall
longer
than
(median
survival,
12.88
vs.
8.97
months;
hazard
death,
0.70;
95%
confidence
interval
[CI],
0.56
0.89;
P
=
0.001).
Progression-free
also
progression-free
5.55
3.71
0.62;
CI,
0.51
0.75;
P<0.001).
incidence
treatment-related
adverse
events
similar
two
groups
(93.9%
91.8%
group);
grade
higher
(51.4%
49.8%,
respectively).Enfortumab
significantly
prolonged
as
compared
standard
platinum-based
(Funded
by
Astellas
Pharma
US
Seagen;
EV-301
ClinicalTrials.gov
number,
NCT03474107.).
Cancer Discovery,
Journal Year:
2021,
Volume and Issue:
11(4), P. 838 - 857
Published: April 1, 2021
Immune
checkpoint
therapy
(ICT)
can
provide
durable
clinical
responses
and
improve
overall
survival.
However,
only
subsets
of
patients
with
specific
tumor
types
respond
to
ICT.
Thus,
significant
challenges
remain,
including
understanding
pathways
resistance,
optimizing
patient
selection,
improving
management
immune-related
adverse
events,
identifying
rational
therapeutic
combinations.
These
will
need
a
focused
approach
encompassing
both
basic
research,
the
integration
reverse
translational
studies.
This
integrated
lead
identification
potential
targets
for
subsequent
trials,
which
guide
decisions
as
we
develop
novel
combination
strategies
maximize
efficacy
minimize
toxicities
patients.
SIGNIFICANCE:
ICTs
induce
antitumor
cancer.
Recent
evidence
suggests
that
combinatorial
response
by
overcoming
primary
adaptive
resistance
mechanisms,
although
these
may
carry
an
increased
risk
immune-mediated
toxicities.
review
surveys
current
mechanisms
active
areas
investigation,
proposes
path
forward
minimizing
through
better
selection
Signal Transduction and Targeted Therapy,
Journal Year:
2021,
Volume and Issue:
6(1)
Published: July 9, 2021
Abstract
Genomic
instability
is
the
hallmark
of
various
cancers
with
increasing
accumulation
DNA
damage.
The
application
radiotherapy
and
chemotherapy
in
cancer
treatment
typically
based
on
this
property
cancers.
However,
adverse
effects
including
normal
tissues
injury
are
also
accompanied
by
chemotherapy.
Targeted
therapy
has
potential
to
suppress
cells’
damage
response
through
tailoring
patients
lacking
specific
functions.
Obviously,
understanding
broader
role
repair
became
a
basic
attractive
strategy
for
targeted
therapy,
particular,
raising
novel
hypothesis
or
theory
field
basis
previous
scientists’
findings
would
be
important
future
promising
druggable
emerging
targets.
In
review,
we
first
illustrate
timeline
steps
roles
promotion
developed,
then
summarize
mechanisms
regarding
associated
highlighting
proteins
behind
targeting
that
initiate
functioning
abnormally
duo
extrinsic
harm
environmental
factors,
also,
baseline
drift
leads
harmful
intrinsic
therapy.
addition,
clinical
therapeutic
drugs
effects,
as
well
scheme
relative
trials
were
intensive
discussed.
Based
background,
suggest
two
hypotheses,
namely
“environmental
gear
selection”
describe
pathway
evolution,
“DNA
drift”,
which
may
play
magnified
mediating
during
treatment.
This
new
shed
light
provide
much
better
more
comprehensive
holistic
view
promote
development
research
direction
overcoming
strategies
patients.
Journal of Hematology & Oncology,
Journal Year:
2021,
Volume and Issue:
14(1)
Published: Sept. 27, 2021
Abstract
Immunotherapies
such
as
immune
checkpoint
blockade
(ICB)
and
adoptive
cell
therapy
(ACT)
have
revolutionized
cancer
treatment,
especially
in
patients
whose
disease
was
otherwise
considered
incurable.
However,
primary
secondary
resistance
to
single
agent
immunotherapy
often
results
treatment
failure,
only
a
minority
of
experience
long-term
benefits.
This
review
article
will
discuss
the
relationship
between
response
mechanisms
immunotherapy.
It
also
provide
comprehensive
on
latest
clinical
status
combination
therapies
(e.g.,
with
chemotherapy,
radiation
targeted
therapy),
approved
by
US
Food
Drug
Administration.
an
overview
targeting
cytokines
other
soluble
immunoregulatory
factors,
ACT,
virotherapy,
innate
modifiers
vaccines,
well
that
exploit
alternative
targets
therapeutic
modalities.
Finally,
this
include
stimulating
insights
from
2020
China
Immuno-Oncology
Workshop
co-organized
Chinese
American
Hematologist
Oncologist
Network
(CAHON),
National
Medical
Product
Administration
(NMPA)
Tsinghua
University
School
Medicine.
New England Journal of Medicine,
Journal Year:
2024,
Volume and Issue:
390(10), P. 875 - 888
Published: March 6, 2024
No
treatment
has
surpassed
platinum-based
chemotherapy
in
improving
overall
survival
patients
with
previously
untreated
locally
advanced
or
metastatic
urothelial
carcinoma.
Download
a
PDF
of
the
Research
Summary.
We
conducted
phase
3,
global,
open-label,
randomized
trial
to
compare
efficacy
and
safety
enfortumab
vedotin
pembrolizumab
Patients
were
randomly
assigned
1:1
ratio
receive
3-week
cycles
(at
dose
1.25
mg
per
kilogram
body
weight
intravenously
on
days
1
8)
200
day
1)
(enfortumab
vedotin–pembrolizumab
group)
gemcitabine
either
cisplatin
carboplatin
(determined
basis
eligibility
cisplatin)
(chemotherapy
group).
The
primary
end
points
progression-free
as
assessed
by
blinded
independent
central
review
survival.
A
total
886
underwent
randomization:
442
group
444
group.
As
August
8,
2023,
median
duration
follow-up
for
was
17.2
months.
Progression-free
longer
than
(median,
12.5
months
vs.
6.3
months;
hazard
disease
progression
death,
0.45;
95%
confidence
interval
[CI],
0.38
0.54;
P<0.001),
31.5
16.1
0.47;
CI,
0.58;
P<0.001).
number
12
(range,
46)
6
6)
Treatment-related
adverse
events
grade
3
higher
occurred
55.9%
69.5%
those
Treatment
resulted
significantly
better
outcomes
carcinoma,
profile
consistent
that
previous
reports.
(Funded
Astellas
Pharma
US
others;
EV-302
ClinicalTrials.gov
number,
NCT04223856.)
QUICK
TAKE
VIDEO
SUMMARYEnfortumab
Vedotin–Pembrolizumab
Advanced
Urothelial
Cancer
02:22
Cell Communication and Signaling,
Journal Year:
2022,
Volume and Issue:
20(1)
Published: April 7, 2022
Abstract
The
main
breakthrough
in
tumor
immunotherapy
was
the
discovery
of
immune
checkpoint
(IC)
proteins,
which
act
as
a
potent
suppressor
system
by
myriad
mechanisms.
After
that,
scientists
focused
on
molecules
mainly.
Thereby,
much
effort
spent
to
progress
novel
strategies
for
suppressing
these
inhibitory
axes,
resulting
evolution
inhibitors
(ICIs).
Then,
ICIs
have
become
promising
approach
and
shaped
paradigm
shift
immunotherapies.
CTLA-4
plays
an
influential
role
attenuation
induction
naïve
memory
T
cells
engagement
with
its
responding
ligands
like
B7-1
(CD80)
B7-2
(CD86).
Besides,
PD-1
is
predominantly
implicated
adjusting
cell
function
peripheral
tissues
through
interaction
programmed
death-ligand
1
(PD-L1)
PD-L2.
Given
their
suppressive
effects
anti-tumor
immunity,
it
has
firmly
been
documented
that
based
therapies
can
be
practical
rational
therapeutic
approaches
treat
cancer
patients.
Nonetheless,
inherent
or
acquired
resistance
ICI
some
treatment-related
toxicities
restrict
application
clinic.
current
review
will
deliver
comprehensive
overview
human
tumors
alone
combination
other
modalities
support
more
desired
outcomes
lower