Frontiers in Cellular and Infection Microbiology,
Journal Year:
2022,
Volume and Issue:
11
Published: Jan. 25, 2022
The
relationship
among
the
gut
microbiome,
global
fecal
metabolites
and
rheumatoid
arthritis
(RA)
has
not
been
systematically
evaluated.
In
this
study,
we
performed
16S
rDNA
sequencing
liquid
chromatography-tandem
mass
spectrometry
(LC-MS/MS)-based
nontargeted
metabolomic
profiling
on
feces
of
26
untreated
RA
patients
healthy
controls.
Twenty-six
genera
forty-one
MS2-identified
were
significantly
altered
in
patients.
Klebsiella,
Escherichia,
Eisenbergiella
Flavobacterium
more
abundant
patients,
while
Fusicatenibacter,
Megamonas
Enterococcus
Function
prediction
analysis
demonstrated
that
biosynthesis
pathways
amino
acids,
such
as
L-arginine
aromatic
depleted
group.
metabolome
results,
including
glycerophospholipids
(PC(18:3(9Z,12Z,15Z)/16:1(9Z)),
lysoPE
19:1,
18:0,
lysoPC(18:0/0:0)),
sphingolipids
(Cer(d18:0/16:0),
Cer(d18:0/12:0),
Cer(d18:0/14:0)),
kynurenic
acid,
xanthurenic
acid
3-hydroxyanthranilic
remarkably
between
Dysregulation
pathways,
tryptophan
metabolism,
alpha-linolenic
metabolism
glycerophospholipid
may
contribute
to
development
RA.
Additionally,
revealed
microbiome
interrelated
Escherichia
was
core
genus.
By
depicting
overall
landscape
intestinal
our
study
could
provide
possible
novel
research
directions
regarding
pathogenesis
targeted
therapy.
Critical Reviews in Food Science and Nutrition,
Journal Year:
2020,
Volume and Issue:
62(1), P. 1 - 12
Published: Dec. 1, 2020
Short-chain
fatty
acids
(SCFAs)
are
carboxylic
with
carbon
atom
numbers
less
than
6,
which
important
metabolites
of
gut
microbiome.
Existing
research
shows
that
SCFAs
play
a
vital
role
in
the
health
and
disease
host.
First,
key
energy
source
for
colon
ileum
cells,
affect
intestinal
epithelial
barrier
defense
functions
by
regulating
related
gene
expression.
Second,
regulate
function
innate
immune
cells
to
participate
system,
such
as
macrophages,
neutrophils
dendritic
cells.
Third,
can
also
differentiation
T
B
antigen-specific
adaptive
immunity
mediated
them.
Besides,
raw
materials
sugar
lipid
synthesis,
provides
theoretical
basis
studying
potential
homeostasis
metabolism.
There
studies
showing
inhibit
tumor
cell
proliferation
promote
apoptosis.
In
this
article,
we
summarized
detail
immunity,
inflammation
metabolism,
briefly
introduced
survival.
It
systematic
study
drugs
human
health.
Aging and Disease,
Journal Year:
2022,
Volume and Issue:
13(4), P. 1106 - 1106
Published: Jan. 1, 2022
Gut
microbiota,
a
collection
of
microorganisms
that
live
within
gastrointestinal
tract,
provides
crucial
signaling
metabolites
for
the
physiological
hosts.
In
healthy
state,
gut
microbiota
are
helpful
maintaining
basic
functions
hosts,
whereas
disturbed
production
these
can
lead
to
numerous
diseases
such
as
metabolic
diseases,
cardiovascular
neurodegenerative
and
cancer.
Although
there
many
reviews
about
specific
mechanisms
on
is
no
comprehensive
summarization
metabolites.
this
Opinion,
we
discuss
knowledge
including
types
their
ways
acting
targets.
addition,
summarize
pathologic
in
health
shaping
composition
nutrition.
This
paper
be
understanding
roles
thus
provide
guidance
developing
suitable
therapeutic
strategies
combat
microbial-driven
improve
health.
Frontiers in Immunology,
Journal Year:
2021,
Volume and Issue:
12
Published: April 29, 2021
Regulatory
B
cells
(Bregs)
is
a
term
that
encompasses
all
act
to
suppress
immune
responses.
Bregs
contribute
the
maintenance
of
tolerance,
limiting
ongoing
responses
and
reestablishing
homeostasis.
The
important
role
in
restraining
pathology
associated
with
exacerbated
inflammatory
autoimmunity
graft
rejection
has
been
consistently
demonstrated,
while
more
recent
studies
have
suggested
for
this
population
other
immune-related
conditions,
such
as
infections,
allergy,
cancer,
chronic
metabolic
diseases.
Initial
identified
IL-10
hallmark
Breg
function;
nevertheless,
past
decade
seen
discovery
molecules
utilized
by
human
murine
regulate
This
new
arsenal
includes
anti-inflammatory
cytokines
IL-35
TGF-β,
well
cell
surface
proteins
like
CD1d
PD-L1.
In
review,
we
examine
main
suppressive
mechanisms
employed
these
novel
populations.
We
also
discuss
evidence
helps
unravel
previously
unknown
aspects
phenotype,
development,
activation,
function
IL-10-producing
Bregs,
incorporating
an
overview
on
those
questions
remain
obscure.
Signal Transduction and Targeted Therapy,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: Feb. 16, 2024
Abstract
The
human
gastrointestinal
tract
is
populated
with
a
diverse
microbial
community.
vast
genetic
and
metabolic
potential
of
the
gut
microbiome
underpins
its
ubiquity
in
nearly
every
aspect
biology,
including
health
maintenance,
development,
aging,
disease.
advent
new
sequencing
technologies
culture-independent
methods
has
allowed
researchers
to
move
beyond
correlative
studies
toward
mechanistic
explorations
shed
light
on
microbiome–host
interactions.
Evidence
unveiled
bidirectional
communication
between
central
nervous
system,
referred
as
“microbiota–gut–brain
axis”.
microbiota–gut–brain
axis
represents
an
important
regulator
glial
functions,
making
it
actionable
target
ameliorate
development
progression
neurodegenerative
diseases.
In
this
review,
we
discuss
mechanisms
As
provides
essential
cues
microglia,
astrocytes,
oligodendrocytes,
examine
communications
microbiota
these
cells
during
healthy
states
Subsequently,
diseases
using
metabolite-centric
approach,
while
also
examining
role
microbiota-related
neurotransmitters
hormones.
Next,
targeting
intestinal
barrier,
blood–brain
meninges,
peripheral
immune
system
counteract
dysfunction
neurodegeneration.
Finally,
conclude
by
assessing
pre-clinical
clinical
evidence
probiotics,
prebiotics,
fecal
transplantation
A
thorough
comprehension
will
foster
effective
therapeutic
interventions
for
management
Trends in Pharmacological Sciences,
Journal Year:
2020,
Volume and Issue:
42(1), P. 60 - 73
Published: Nov. 27, 2020
L-Tryptophan
(L-Trp)
is
metabolized
via
three
pathways:
the
indole
pathway
in
bacteria
and
kynurenine
serotonin
pathways
mammalian
cells.Disruptions
L-Trp
metabolism
are
reported
several
diseases
making
a
promising
therapeutic
target.Manipulating
an
attractive
strategy.Key
enzymes
of
targets
inhibitors
currently
undergoing
clinical
trials
cancerology,
dermatology,
gastroenterology.Serotonin
aryl
hydrocarbon
receptor
(AhR)
receptors
targeted
treatment
gastrointestinal
diseases,
inflammation,
many
cancers.Next-generation
probiotics
producing
indoles
being
developed
for
their
ability
to
activate
AhR
gut.
essential
amino
acid
required
protein
synthesis.
It
undergoes
extensive
complex
along
pathways,
resulting
bioactive
molecules
acting
various
organs
through
different
action
mechanisms.
Enzymes
involved
its
metabolism,
metabolites
themselves,
or
receptors,
represent
potential
targets,
which
subject
dynamic
research.
Disruptions
L-tryptophan
neurological,
metabolic,
psychiatric,
intestinal
disorders,
paving
way
develop
drugs
target
it.
This
review
will
briefly
describe
present
discuss
most
recent
pharmacological
developments
targeting