Frontiers in Oncology,
Journal Year:
2019,
Volume and Issue:
9
Published: Feb. 11, 2019
Despite
advances
in
the
diagnostic
and
therapeutic
modalities,
prognosis
of
several
solid
tumor
malignancies
remains
poor.
Different
factors
associated
with
tumors
including
a
varied
genetic
signature,
complex
molecular
signaling
pathways,
defective
cross
talk
between
cells
immune
cells,
hypoxic
immunosuppressive
effects
microenvironment
result
treatment
resistant
metastatic
phenotype.
Over
past
years,
immunotherapy
has
emerged
as
an
attractive
option
against
multiple
malignancies.
The
unique
ability
natural
killer
(NK)
to
target
cancer
without
antigen
specificity
makes
them
ideal
candidate
for
use
tumors.
However,
outcomes
adoptive
NK
cell
infusions
into
patients
have
been
disappointing.
Extensive
studies
done
investigate
different
strategies
improve
function,
trafficking
targeting.
Use
cytokines
cytokine
analogues
well
described
utilized
enhance
proliferation,
stimulation
persistence
cells.
Other
techniques
like
blocking
human
leukocyte
antigen-killer
receptors
(KIR)
interactions
anti-KIR
monoclonal
antibodies,
preventing
CD16
receptor
shedding,
increasing
expression
activating
NKG2D,
immunocytokines
checkpoint
inhibitors
can
mediated
cytotoxicity.
Using
genetically
modified
chimeric
bispecific
trispecific
engagers,
be
effectively
redirected
improving
their
cytotoxic
potential.
In
this
review,
we
these
highlighted
need
further
optimize
clinical
outcome
based
Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 2, 2019
Abstract
Natural
killer
(NK)
cells
are
critical
to
both
innate
and
adaptive
immunity.
However,
the
development
heterogeneity
of
human
NK
yet
be
fully
defined.
Using
single-cell
RNA-sequencing
technology,
here
we
identify
distinct
populations
in
bone
marrow
blood,
including
one
population
expressing
higher
levels
immediate
early
genes
indicative
a
homeostatic
activation.
Functionally
matured
with
high
expression
CX3CR1
,
HAVCR2
(TIM-3),
ZEB2
represents
terminally
differentiated
status
unique
transcriptional
profile.
Transcriptomic
pseudotime
analyses
transitional
between
CD56
bright
dim
cells.
Finally,
donor
GATA2
T354M
mutation
exhibits
reduced
percentage
altered
transcriptome
elevated
cell
death.
These
data
expand
our
understanding
Journal of Clinical Investigation,
Journal Year:
2019,
Volume and Issue:
129(9), P. 3499 - 3510
Published: Sept. 2, 2019
Natural
killer
(NK)
cells
are
innate
cytotoxic
lymphocytes
involved
in
the
surveillance
and
elimination
of
cancer.
As
we
have
learned
more
about
mechanisms
NK
employ
to
recognize
eliminate
tumor
cells,
how,
turn,
cancer
evades
cell
responses,
gained
a
clear
appreciation
that
can
be
harnessed
immunotherapy.
Here,
review
evidence
for
cells'
critical
role
combating
transformed
malignant
how
immunotherapies
potentiate
responses
therapeutic
purposes.
We
highlight
cutting-edge
immunotherapeutic
strategies
preclinical
clinical
development
such
as
adoptive
transfer,
chimeric
antigen
receptor-expressing
(CAR-NKs),
bispecific
trispecific
engagers
(BiKEs
TriKEs),
checkpoint
blockade,
oncolytic
virotherapy.
Further,
describe
challenges
face
(e.g.,
postsurgical
dysfunction)
must
overcome
by
these
modalities
achieve
clearance.
Cancers,
Journal Year:
2019,
Volume and Issue:
11(6), P. 877 - 877
Published: June 23, 2019
Natural
killer
(NK)
cells
are
lymphocytes
of
the
innate
immune
response
characterized
by
their
role
in
destruction
tumor
cells.
Activation
NK
depend
on
a
fine
balance
between
activating
and
inhibitory
signals
mediated
different
receptors.
In
recent
years,
family
paired
receptors
that
interact
with
ligands
Nectin/Nectin-like
(Necl)
has
attracted
great
interest.
Two
these
ligands,
Necl-5
(usually
termed
CD155
or
PVR)
Nectin-2
(CD112),
frequently
expressed
types
cells,
recognized
group
T
exert
opposite
functions
after
interacting
ligands.
These
include
DNAM-1
(CD226),
TIGIT,
TACTILE
(CD96)
recently
described
PVRIG.
Whereas
activation
through
recognition
CD112
enhances
cell-mediated
cytotoxicity
against
wide
range
TIGIT
exerts
an
effect
diminishing
IFN-γ
production,
as
well
cytotoxicity.
PVRIG
also
been
identified
receptor
recognizes
but
not
CD155.
However,
little
is
known
about
modulator
responses
humans.
control
growth
metastases
reported
murine
models,
it
suggested
negatively
regulates
anti-tumor
DNAM-1.
from
patients
solid
cancer
leukemia,
observed
decreased
expression
may
shift
favor
to
PVRIG,
further
contributing
diminished
cytotoxic
capacity
patients.
Analysis
DNAM-1,
human
leukemia
will
clarify
surveillance.
Overall,
can
be
speculated
TIGIT/PVRIG
pathways
upregulated
represent
novel
targets
for
checkpoint
blockade
immunotherapy.
Blood Advances,
Journal Year:
2020,
Volume and Issue:
4(7), P. 1388 - 1406
Published: April 9, 2020
Abstract
Human
natural
killer
(NK)
cells
in
peripheral
blood
perform
many
functions,
and
classification
of
specific
subsets
has
been
a
longstanding
goal.
We
report
single-cell
RNA
sequencing
NK
cells,
comparing
gene
expression
unstimulated
interleukin
(IL)-2–activated
from
healthy
cytomegalovirus
(CMV)-negative
donors.
Three
cell
resembled
well-described
populations;
CD56brightCD16−,
CD56dimCD16+CD57−,
CD56dimCD16+CD57+.
CD56dimCD16+CD57−
subdivided
to
include
population
with
higher
chemokine
mRNA
increased
frequency
killer-cell
immunoglobulin-like
receptor
expression.
novel
human
populations
were
identified:
type
I
interferon–responding
that
CD56neg;
exhibiting
cytokine-induced
memory-like
phenotype,
including
granzyme
B
response
IL-2;
finally,
small
population,
low
ribosomal
expression,
downregulation
oxidative
phosphorylation,
high
levels
immediate
early
genes
indicative
cellular
activation.
Analysis
CMV+
donors
established
CMV
altered
the
proportion
each
subset,
especially
an
increase
adaptive
as
well
regulation
within
subset.
Together,
these
data
establish
unexpected
diversity
provide
new
framework
for
analyzing
responses
health
disease.
Journal of Clinical Medicine,
Journal Year:
2020,
Volume and Issue:
9(8), P. 2511 - 2511
Published: Aug. 4, 2020
Besides
advanced
age
and
the
presence
of
multiple
comorbidities
as
major
contributors
to
increased
risk
severe
disease
fatal
outcome
from
Severe
Acute
Respiratory
Syndrome
coronavirus
2
(SARS-CoV-2)
(COVID-19),
there
is
now
emerging
evidence
that
overweight
obesity
predispose
symptoms
negative
prognosis.
Remarkably,
severity
COVID-19
appears
rise
with
increasing
body
mass
index
(BMI).
The
association
between
outcomes
overweight/obesity
has
biological
physiological
plausibility.
Potential
pathophysiological
mechanisms
may
explain
this
strong
include
chronic
pro-inflammatory
state,
excessive
oxidative
stress
response,
impaired
immunity
commonly
reported
in
these
individuals.
role
cytokines,
mammalian
target
rapamycin
(mTOR),
altered
natural
killer
cell
polarization
dangerous
liaison
are
discussed
here.
These
pathways
can
favor
accelerate
deleterious
downstream
cellular
effects
SARS-CoV-2.
Moreover,
well
known
be
associated
reduced
lung
function
poor
response
mechanical
ventilation,
thus
placing
individuals
at
high
illness
mortality
COVID-19.
Furthermore,
lead
other
complications,
such
renal
failure,
cardiovascular
dysfunction,
hypertension,
vascular
damage,
which
turn
further
clinical
Obese
should
shielded
against
any
potential
viral
exposure
SARS-CoV-2
consequential
considerations
for
compulsory
protection
devices
social
distancing.
Health
care
providers
aware
predisposes
prognosis
patients.
Cell,
Journal Year:
2023,
Volume and Issue:
186(19), P. 4235 - 4251.e20
Published: Aug. 21, 2023
Natural
killer
(NK)
cells
play
indispensable
roles
in
innate
immune
responses
against
tumor
progression.
To
depict
their
phenotypic
and
functional
diversities
the
microenvironment,
we
perform
integrative
single-cell
RNA
sequencing
analyses
on
NK
from
716
patients
with
cancer,
covering
24
cancer
types.
We
observed
heterogeneity
cell
composition
a
tumor-type-specific
manner.
Notably,
have
identified
group
of
tumor-associated
that
are
enriched
tumors,
show
impaired
anti-tumor
functions,
associated
unfavorable
prognosis
resistance
to
immunotherapy.
Specific
myeloid
subpopulations,
particular
LAMP3+
dendritic
cells,
appear
mediate
regulation
immunity.
Our
study
provides
insights
into
NK-cell-based
immunity
highlights
potential
clinical
utilities
subsets
as
therapeutic
targets.