Zika virus exists in enterocytes and enteroendocrine cells of the Aedes aegypti midgut
iScience,
Год журнала:
2024,
Номер
27(7), С. 110353 - 110353
Опубликована: Июнь 22, 2024
The
Язык: Английский
Anopheles gambiae phagocytic hemocytes promote Plasmodium falciparum infection by regulating midgut epithelial integrity
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Фев. 8, 2025
For
successful
transmission,
the
malaria
parasite
must
traverse
tissue
epithelia
and
survive
attack
from
insect's
innate
immune
system.
Hemocytes
play
a
multitude
of
roles
in
mosquitoes,
including
defense
against
invading
pathogens.
Here,
we
show
that
hemocytes
major
vector
Anopheles
gambiae
promote
Plasmodium
falciparum
infection
by
maintaining
midgut
epithelial
integrity
controlling
cell
proliferation
upon
blood
feeding.
The
mosquito's
also
control
microbiota
gene
expression.
Our
study
unveils
novel
hemocyte
functions
are
exploited
human
to
evade
Cardoso
Dimopoulos
mosquito
macrophages-like
cells
agonists
early
stages
critical
role
Язык: Английский
Juvenile Hormone as a contributing factor in establishing midgut microbiota for fecundity and fitness enhancement in adult female Aedes aegypti
Communications Biology,
Год журнала:
2024,
Номер
7(1)
Опубликована: Июнь 5, 2024
Abstract
Understanding
the
factors
influencing
mosquitoes’
fecundity
and
longevity
is
important
for
designing
better
more
sustainable
vector
control
strategies,
as
these
parameters
can
impact
their
vectorial
capacity.
Here,
we
address
how
mating
affects
midgut
growth
in
Aedes
aegypti
,
what
role
Juvenile
Hormone
(JH)
plays
this
process,
it
impacts
mosquito’s
immune
response
microbiota.
Our
findings
reveal
that
JH
induce
growth.
Additionally,
establishment
of
a
native
bacterial
population
due
to
JH-dependent
suppression
has
reproductive
outcomes.
Specific
downregulation
AMPs
with
an
increase
bacteria
abundance
gut
results
increased
egg
counts
longer
lifespans.
Overall,
provide
evidence
cross-talk
between
response,
epithelial
tissue,
cell
cycle
regulation,
mechanisms
governing
trade-offs
nutrition,
immunity,
reproduction
at
cellular
level
mosquito
gut.
Язык: Английский
Influence of blood-feeding and infection on arthropod hemocytes
Current Opinion in Insect Science,
Год журнала:
2025,
Номер
unknown, С. 101341 - 101341
Опубликована: Фев. 1, 2025
Язык: Английский
Mosquito symbionts, immunity, and vector competence for arboviruses
Elsevier eBooks,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Reciprocal interactions between neuropeptide F and RYamide regulate host attraction in the mosquito Aedes aegypti
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(28)
Опубликована: Июль 1, 2024
Female
mosquitoes
produce
eggs
in
gonadotrophic
cycles
that
are
divided
between
a
previtellogenic
and
vitellogenic
phase.
Previtellogenic
females
consume
water
sugar
sources
like
nectar
while
also
being
attracted
to
hosts
for
blood
feeding.
Consumption
of
meal
activates
the
phase,
which
produces
mature
suppresses
host
attraction.
In
this
study,
we
tested
hypothesis
neuropeptide
Y-like
hormones
differentially
modulate
attraction
behavior
mosquito
Aedes
aegypti
.
A
series
experiments
collectively
indicated
enteroendocrine
cells
(EECs)
posterior
midgut
release
F
(NPF)
into
hemolymph
during
phase
stimulates
humans
biting
behavior.
meal,
primarily
consists
protein
by
dry
weight,
down-regulated
NPF
EECs
until
developed,
was
associated
with
decline
titer.
depletion
depended
on
digestion
but
not
EEC
loss.
Other
showed
neurons
terminal
ganglion
extend
axons
RYamide,
evidence
increased
secretion
circulation
after
meal.
Injection
RYamide-1
-2
suppressed
attraction,
coinjection
RYamides
or
without
short
NPF-2
inhibited
activity
NPF.
Overall,
our
results
identify
RYamide
as
gut-associated
A.
link
shifts
diet
sequential
cycles.
Язык: Английский
Single-cell transcriptional landscapes of Aedes aegypti midgut and fat body after a bloodmeal
Опубликована: Ноя. 11, 2024
SUMMARY
Aedes
aegypti
mosquitoes
are
vectors
for
numerous
arboviruses
that
have
an
increasingly
substantial
global
health
burden.
Following
a
bloodmeal,
experience
significant
physiological
changes,
primarily
orchestrated
by
the
midgut
and
fat
body
tissues.
These
changes
begin
with
digestion
culminate
in
egg
production.
However,
our
understanding
of
those
key
processes
at
cellular
molecular
level
remains
limited.
We
created
comprehensive
cell
atlas
mosquito
employing
single-cell
RNA
sequencing
metabolomics
techniques.
This
unveils
dynamic
composition
metabolic
adaptations
occur
following
bloodmeal.
Our
analyses
reveal
highly
diverse
populations,
specialized
digestion,
metabolism,
immunity,
reproduction.
While
comprises
enterocytes,
enteroendocrine
intestinal
stem
cells,
consists
not
only
trophocytes
oenocytes,
but
also
harbors
hemocyte
population
newly
found
body-yolk
population.
The
exhibits
complex
metabolomic
profile
exerts
central
role
coordinating
immune
processes.
Additionally,
insect-specific
virus,
PCLV
(Phasi
Charoen-Like
Virus)
was
detected
single
mainly
week
after
findings
highlight
complexity
mosquito’s
abdominal
tissues,
pave
way
towards
development
exquisitely
refined
vector
control
strategies
consisting
genetically
targeting
specific
populations
pathways
necessary
Язык: Английский
A Crosstalk between Mosquito Borne Dengue Virus in the Lung Microenvironment
IntechOpen eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 6, 2024
There
are
reports
of
several
respiratory
viruses
identified
in
the
lung.
However,
existence
dengue
virus
(DENV)
particle
is
still
its
infancy.
We
have
thoroughly
discussed
components
and
traits
lung
cells’
involvement
DENV
infection
detail.
In
this
chapter,
our
goal
to
focus
on
unraveling
key
elements
epithelial
microenvironment,
microbiota
niche
their
participation
spread
patient
outcome.
also
talked
about
crucial
aspect
lung-gut
axis,
host
mosquito
variables
that
may
influence
how
a
progresses,
potential
connection
between
sepsis
damage
after
infection.
natively
concentrate
aimed
emphasize
incidence
manifestations
dengue-infected
individuals,
correlation
with
outcomes
DENV’s
microenvironment.
This
report
will
introduce
new
field
inquiry
finding
critical
underlying
unknown
cause
solving
puzzle
diagnosis.
Язык: Английский