Frontiers in Immunology,
Journal Year:
2022,
Volume and Issue:
13
Published: March 2, 2022
Infection
with
SARS-CoV-2,
the
causative
agent
of
Coronavirus
disease
2019
(COVID-19)
pandemic,
causes
respiratory
problems
and
multifaceted
organ
dysfunction.
A
crucial
mechanism
COVID-19
immunopathy
is
recruitment
activation
neutrophils
at
infection
site,
which
also
predicts
severity
poor
outcomes.
The
release
neutrophil
extracellular
traps
(NETs),
occurring
during
a
regulated
form
cell
death
known
as
NETosis,
key
effector
function
that
mediates
harmful
effects
caused
by
neutrophils.
Abundant
NETosis
NET
generation
have
been
observed
in
many
patients,
leading
to
unfavorable
coagulopathy
immunothrombosis.
Moreover,
excessive
are
now
more
widely
recognized
mediators
additional
pathophysiological
abnormalities
following
SARS-CoV-2
infection.
In
this
minireview,
we
introduce
subtypes
NET-producing
(e.g.,
low-density
granulocytes)
explain
biological
importance
NETs
protein
cargos
COVID-19.
addition,
discuss
mechanisms
upregulating
viral
processes
entry
replication)
well
host
pro-NET
proinflammatory
mediator
release,
platelet
activation,
autoantibody
production).
Furthermore,
provide
an
update
main
findings
immunothrombosis
other
COVID-19-related
disorders,
such
aberrant
immunity,
neurological
post
syndromes
including
lung
fibrosis,
disorder,
tumor
progression,
deteriorated
chronic
illness.
Finally,
address
potential
prospective
treatment
strategies
target
dysregulated
formation
via
inhibition
promotion
degradation,
respectively.
The Journal of Experimental Medicine,
Journal Year:
2022,
Volume and Issue:
219(6)
Published: May 6, 2022
Neutrophils
are
the
first
responders
to
infection
and
inflammation
thus
a
critical
component
of
innate
immune
defense.
Understanding
behavior
neutrophils
as
they
act
within
various
inflammatory
contexts
has
provided
insights
into
their
role
in
sterile
infectious
diseases;
however,
field
cancer
is
comparatively
young.
Here,
we
summarize
key
concepts
current
knowledge
gaps
related
diverse
roles
throughout
progression.
We
discuss
sources
neutrophil
heterogeneity
provide
recommendations
on
nomenclature
for
states
that
distinct
maturation
activation.
address
discrepancies
literature
highlight
need
technical
standards
ought
be
considered
between
laboratories.
Finally,
review
emerging
questions
biology
immunity
cancer.
Overall,
emphasize
more
population
than
previously
appreciated
may
present
novel
unexplored
opportunities
treat
Cardiovascular Research,
Journal Year:
2021,
Volume and Issue:
118(13), P. 2737 - 2753
Published: Oct. 12, 2021
Abstract
At
the
frontline
of
host
defence
response,
neutrophil
antimicrobial
functions
have
adapted
to
combat
infections
and
injuries
different
origins
magnitude.
The
release
web-like
DNA
structures
named
extracellular
traps
(NETs)
constitutes
an
important
mechanism
by
which
neutrophils
prevent
pathogen
dissemination
or
deal
with
microorganisms
a
bigger
size.
same
time,
nuclear
granule
proteins
microbicidal
activity
bind
these
promoting
elimination
entrapped
pathogens.
However,
toxic
properties
may
produce
unwanted
effects
in
host,
when
uncontrollably
NETs
upon
persistent
inflammation.
As
consequence,
NET
accumulation
can
vessel
occlusion,
tissue
damage,
prolonged
inflammation
associated
progression
exacerbation
multiple
pathologic
conditions.
This
review
outlines
recent
advances
understanding
mechanisms
sterile
disease.
We
also
discuss
physiological
regulation
importance
heterogeneity
formation
composition.
International Journal of Biological Sciences,
Journal Year:
2022,
Volume and Issue:
18(8), P. 3337 - 3357
Published: Jan. 1, 2022
Neutrophil
extracellular
traps
(NETs)
production
is
a
major
strategy
employed
by
polymorphonuclear
neutrophils
(PMNs)
to
fight
against
microbes.
NETs
have
been
implicated
in
the
pathogenesis
of
various
lung
injuries,
although
few
studies
explored
sepsis-associated
acute
injury
(SI-ALI).
Here,
we
demonstrate
contribution
pathology
ALI
inducing
ferroptosis
alveolar
epithelial
cells.
Using
both
vitro
and
vivo
studies,
our
findings
show
enhanced
accumulation
patients
mice,
as
well
closely
related
upregulation
ferroptosis,
induction
which
depends
on
METTL3-induced
m6A
modification
GPX4.
CLP-induced
mouse
model
established
with
METTL3-/-
versus
WT
addition
METTL3
knockout
overexpression
vitro,
elucidated
confirmed
critical
role
NETs-induced
ALI.
These
support
for
subsequent
Clinical Cancer Research,
Journal Year:
2020,
Volume and Issue:
27(9), P. 2383 - 2393
Published: Dec. 29, 2020
Abstract
One
of
the
most
important
mechanisms
by
which
cancer
fosters
its
own
development
is
generation
an
immune
microenvironment
that
inhibits
or
impairs
antitumor
responses.
A
permissive
present
in
a
large
proportion
patients
with
who
do
not
respond
to
immunotherapy
approaches
intended
trigger
preexisting
responses,
for
instance,
checkpoint
blockade.
High
circulating
levels
IL8
quite
accurately
predict
those
will
benefit
from
checkpoint-based
immunotherapy.
has
been
reported
favor
progression
and
metastases
via
different
mechanisms,
including
proangiogenesis
maintenance
stem
cells,
but
ability
attract
functionally
modulate
neutrophils
macrophages
arguably
one
factors.
does
only
recruit
tumor
lesions,
also
triggers
extrusion
neutrophil
extracellular
traps
(NET).
The
relevance
underlying
contribution
both
NETs
are
starting
be
uncovered
include
direct
effects
on
cells
changes
microenvironment,
such
as
facilitating
metastasis,
awakening
micrometastases
dormancy,
escape
cytotoxic
cells.
Blockade
receptors
(CXCR1
CXCR2)
being
pursued
drug
development,
clinical
trials
alone
combination
anti-PD-L1
inhibitors
already
ongoing.
International Journal of Molecular Sciences,
Journal Year:
2021,
Volume and Issue:
22(2), P. 559 - 559
Published: Jan. 8, 2021
Neutrophils
are
primary
effector
cells
of
innate
immunity
and
fight
infection
by
phagocytosis
degranulation.
Activated
neutrophils
also
release
neutrophil
extracellular
traps
(NETs)
in
response
to
a
variety
stimuli.
These
NETs
net-like
complexes
composed
cell-free
DNA,
histones
granule
proteins.
Besides
the
evolutionarily
conserved
mechanism
capture
eliminate
pathogens,
associated
with
pathophysiological
processes
various
diseases.
Here,
we
elucidate
mechanisms
NET
formation
their
different
implications
disease.
We
focused
on
autoinflammatory
cardiovascular
disorders
as
leading
cause
death.
Neutrophil
not
only
present
diseases
but
play
an
essential
role
atherosclerotic
plaque
formation,
arterial
venous
thrombosis,
well
development
progression
abdominal
aortic
aneurysms.
Furthermore,
NETosis
can
be
considered
source
autoantigens
maintains
inflammatory
milieu
promoting
autoimmune
Indeed,
there
is
further
need
for
research
into
balance
between
induction,
inhibition,
degradation
order
pharmacologically
target
compounds
without
impairing
patient's
immune
defense.
This
review
may
interest
both
basic
scientists
clinicians
stimulate
translational
innovative
clinical
approaches.
Cancers,
Journal Year:
2021,
Volume and Issue:
13(17), P. 4495 - 4495
Published: Sept. 6, 2021
The
present
review
highlights
the
complex
interactions
between
cancer
and
neutrophil
extracellular
traps
(NETs).
Neutrophils
constitute
first
line
of
defense
against
foreign
invaders
using
major
effector
mechanisms:
phagocytosis,
degranulation,
NETs
formation.
are
composed
from
decondensed
nuclear
or
mitochondrial
DNA
decorated
with
proteases
various
inflammatory
mediators.
Although
play
a
crucial
role
in
systemic
infections,
they
also
participate
non-infectious
conditions,
such
as
inflammation,
autoimmune
disorders,
cancer.
Cancer
cells
recruit
neutrophils
(tumor-associated
neutrophils,
TANs),
releasing
to
tumor
microenvironment.
were
found
samples
human
animal
tumors,
pancreatic,
breast,
liver,
gastric
cancers
around
metastatic
tumors.
development
increasingly
includes
immunoediting
immune
system
cells.
According
accumulated
evidence,
awake
dormant
cells,
causing
relapse,
well
its
unconstrained
growth
spread.
key
regulatory
microenvironment,
distant
metastases
through
secretion
proteases,
i.e.,
matrix
metalloproteinases
proinflammatory
cytokines.
NETs,
furthermore,
directly
exacerbate
aggressiveness
by
enhancing
migration
invasion
capacity.
collected
evidence
states
that
induction
high-mobility
group
box
1,
induce
epithelial
mesenchymal
transition
and,
thereby,
potentiate
their
invasiveness.
NET
proteinases
can
degrade
matrix,
promoting
cell
extravasation.
Moreover,
entrap
circulating
way,
facilitate
metastasis.
trigger
proliferation
activating
signals.
This
focused
on
pro-tumorigenic
action
spite
potential
exhibit
an
antitumor
effect.
components,
myeloperoxidase
histones,
have
been
shown
kill
A
better
understanding
crosstalk
help
devise
novel
approaches
therapeutic
interventions
block
evasion
mechanisms
prevent
sought
provide
most
recent
knowledge
cancer,
bring
more
profound
ideas
for
future
scientists
exploring
this
field.