Activation of the G protein‐coupled sulfakinin receptor inhibits blood meal intake in the mosquito Aedes aegypti
Linlong Jiang,
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Xiao Bing Xie,
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Lei Zhang
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et al.
The FASEB Journal,
Journal Year:
2024,
Volume and Issue:
38(15)
Published: Aug. 7, 2024
Abstract
Little
is
known
about
the
blood‐feeding
physiology
of
arbovirus
vector
Aedes
aegypti
although
this
type
mosquito
to
transmit
infectious
diseases
dengue,
Zika,
yellow
fever,
and
chikungunya.
Blood
feeding
in
female
A.
essential
for
egg
maturation
transmission
disease
agents
between
human
subjects.
Here,
we
identify
sulfakinin
receptor
gene
SKR
from
genome
show
that
expressed
at
different
developmental
stages
varied
anatomical
localizations
adult
(at
three
days
after
eclosion),
with
particularly
high
expression
CNS.
Knockingdown
results
increased
blood
meal
intake,
but
microinjection
thorax
peptide
1
2
both
inhibits
dose
dependently
intake
(and
delays
time
course
intake),
which
reversible
antagonist.
Sulfakinin
ectopically
mammalian
cells
CHO‐K1
responds
stimulation
persistent
calcium
spikes,
blockable
These
data
together
suggest
activation
Gq
protein‐coupled
(i.e.,
calcium‐mobilizing)
mosquitoes
could
serve
as
a
strategic
node
future
control
reproduction/population
transmission.
Language: Английский
To activate NAD(P)H oxidase with a brief pulse of photodynamic action
Xiao Bing Xie,
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Shu Yu,
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Zong Jie Cui
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et al.
The FASEB Journal,
Journal Year:
2024,
Volume and Issue:
38(23)
Published: Dec. 10, 2024
Reduced
nicotinamide
adenine
dinucleotide
phosphate
[NAD(P)H]
oxidases
(NOX)
are
a
major
cellular
source
of
reactive
oxygen
species,
regulating
vital
physiological
functions,
whose
dys-regulation
leads
to
plethora
diseases.
Much
effort
has
been
made
develop
varied
types
NOX
inhibitors,
but
biotechnologies
for
spatially
and
temporally
controlled
activation,
however,
not
readily
available.
We
previously
found
that
ultraviolet
A
(UVA)
irradiation
activates
NOX2
in
rodent
mast
cells,
elicit
persistent
calcium
spikes.
is
composed
multiple
subunits,
making
studies
its
activation
rather
complicated.
Here
we
show
the
single-subunit
nonrodent-expressing
NOX5,
when
expressed
ectopically
CHO-K1
activated
by
UVA
(380
nm,
0.1-12
mW/cm
Language: Английский