Lab on a Chip,
Journal Year:
2023,
Volume and Issue:
23(5), P. 1192 - 1212
Published: Jan. 1, 2023
Organoids/organs-on-a-chip
contribute
to
mimicking
intestinal
surface
topography,
microenvironment,
and
various
interactions,
providing
new
frontiers
of
pathophysiological
models.
Cell Research,
Journal Year:
2020,
Volume and Issue:
30(6), P. 492 - 506
Published: May 20, 2020
Abstract
The
interplay
between
the
commensal
microbiota
and
mammalian
immune
system
development
function
includes
multifold
interactions
in
homeostasis
disease.
microbiome
plays
critical
roles
training
of
major
components
host’s
innate
adaptive
system,
while
orchestrates
maintenance
key
features
host-microbe
symbiosis.
In
a
genetically
susceptible
host,
imbalances
microbiota-immunity
under
defined
environmental
contexts
are
believed
to
contribute
pathogenesis
multitude
immune-mediated
disorders.
Here,
we
review
microbiome-immunity
crosstalk
their
health
disease,
providing
examples
molecular
mechanisms
orchestrating
these
intestine
extra-intestinal
organs.
We
highlight
aspects
current
knowledge,
challenges
limitations
achieving
causal
understanding
host
immune-microbiome
interactions,
as
well
impact
on
diseases,
discuss
how
insights
may
translate
towards
future
microbiome-targeted
therapeutic
interventions.
Carcinogenesis,
Journal Year:
2018,
Volume and Issue:
39(8), P. 1068 - 1078
Published: May 25, 2018
Pancreatic
ductal
adenocarcinoma
(PDAC)
is
the
third
leading
cause
of
cancer
death
in
United
States
yet
data
are
scant
regarding
host
factors
influencing
pancreatic
carcinogenesis.
Increasing
evidence
support
role
microbiota
carcinogenesis
but
its
PDAC
not
well
established.
Herein,
we
report
that
antibiotic-mediated
microbial
depletion
KrasG12D/PTENlox/+
mice
showed
a
decreased
proportion
poorly
differentiated
tumors
compared
to
microbiota-intact
mice.
Subsequent
16S
rRNA
PCR
~50%
with
harbored
intrapancreatic
bacteria.
To
determine
if
similar
observation
humans
correlates
presence
PDAC,
benign
and
malignant
human
surgical
specimens
demonstrated
by
bacterial
sequencing
culture
confirmation.
However,
composition
did
differentiate
from
non-PDAC
tissue.
Furthermore,
murine
pancreas
naturally
acquire
microbiota,
as
germ-free
transferred
specific
pathogen-free
housing
failed
bacteria
over
time,
which
was
augmented
model
colitis.
Finally,
Nod-SCID
mice,
microbiota-intact,
increased
time
xenograft
formation,
smaller
tumors,
attenuated
growth.
Interestingly,
both
cohorts
were
devoid
intratumoral
PCR,
suggesting
intrapancreatic/intratumoral
sole
driver
acceleration.
Xenografts
innate
immune
suppression
immunohistochemistry
differential
regulation
oncogenic
pathways
determined
RNA
sequencing.
Our
work
supports
long-distance
intestinal
on
progression
opens
new
research
avenues
World Journal of Gastroenterology,
Journal Year:
2020,
Volume and Issue:
26(18), P. 2187 - 2193
Published: May 14, 2020
Acute
pancreatitis
(AP)
is
a
common
gastrointestinal
disorder.Approximately
15%-20%
of
patients
develop
severe
AP.Systemic
inflammatory
response
syndrome
and
multiple
organ
dysfunction
may
be
caused
by
the
massive
release
cytokines
in
early
stage
AP,
followed
intestinal
pancreatic
necrosis
later
stage.A
study
showed
that
59%
AP
had
associated
barrier
injury,
with
increased
mucosal
permeability,
leading
to
bacterial
translocation,
tissue
infection,
occurrence
syndrome.However,
real
effect
gut
microbiota
its
metabolites
on
function
remains
unclear.This
review
summarizes
alterations
flora
during
development
progression
unveil
mechanism
failure
AP.
Biomedicines,
Journal Year:
2021,
Volume and Issue:
10(1), P. 83 - 83
Published: Dec. 31, 2021
The
largest
surface
of
the
human
body
exposed
to
external
environment
is
gut.
At
this
level,
intestinal
barrier
includes
luminal
microbes,
mucin
layer,
gastrointestinal
motility
and
secretion,
enterocytes,
immune
cells,
gut
vascular
barrier,
liver
barrier.
A
healthy
characterized
by
selective
permeability
nutrients,
metabolites,
water,
bacterial
products,
processes
are
governed
cellular,
neural,
immune,
hormonal
factors.
Disrupted
(leaky
syndrome)
can
represent
a
predisposing
or
aggravating
condition
in
obesity
metabolically
associated
steatosis
(nonalcoholic
fatty
disease,
NAFLD).
In
what
follows,
we
describe
morphological-functional
features
role
major
modifiers
discuss
recent
evidence
pointing
key
obesity/NAFLD.
Gut,
Journal Year:
2023,
Volume and Issue:
72(7), P. 1355 - 1369
Published: Jan. 11, 2023
In
acute
pancreatitis
(AP),
bacterial
translocation
and
subsequent
infection
of
pancreatic
necrosis
are
the
main
risk
factors
for
severe
disease
late
death.
Understanding
how
immunological
host
defence
mechanisms
fail
to
protect
intestinal
barrier
is
great
importance
in
reducing
mortality
disease.
Here,
we
studied
role
Treg/Th17
balance
maintaining
function
a
mouse
model
AP.AP
was
induced
by
partial
duct
ligation
C57Bl/6
or
DEREG
mice,
which
regulatory
T-cells
(Treg)
were
depleted
intraperitoneal
injection
diphtheria
toxin.
By
flow
cytometry,
functional
suppression
assays
transcriptional
profiling
analysed
Treg
activation
characterised
lamina
propria
as
well
intraepithelial
lymphocytes
(IELs)
regarding
their
differentiation.
Microbiota
composition
examined
samples
murine
human
16S
rRNA
gene
sequencing.The
prophylactic
Treg-depletion
enhanced
proinflammatory
response
an
experimental
AP
but
stabilised
Th17
cells
CD8+/γδTCR+
IELs.
animals
developed
less
pancreas.
Duodenal
overgrowth
facultative
pathogenic
taxa
Escherichia/Shigella
associates
with
infected
diminished
animals.Tregs
play
crucial
counterbalance
against
systemic
inflammatory
syndrome.
AP,
Treg-activation
disturbs
duodenal
permits
commensal
bacteria
into
necrosis.
Targeting
Tregs
may
help
ameliorate
course.
Journal of Hematology & Oncology,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: May 14, 2024
The
gut
microbiota
plays
a
critical
role
in
the
progression
of
human
diseases,
especially
cancer.
In
recent
decades,
there
has
been
accumulating
evidence
connections
between
and
cancer
immunotherapy.
Therefore,
understanding
functional
regulating
immune
responses
to
immunotherapy
is
crucial
for
developing
precision
medicine.
this
review,
we
extract
insights
from
state-of-the-art
research
decipher
complicated
crosstalk
among
microbiota,
systemic
system,
context
Additionally,
as
can
account
immune-related
adverse
events,
discuss
potential
interventions
minimize
these
effects
clinical
application
five
microbiota-targeted
strategies
that
precisely
increase
efficacy
Finally,
holds
promising
target
immunotherapeutics,
summarize
current
challenges
provide
general
outlook
on
future
directions
field.