Annual Review of Microbiology,
Год журнала:
2023,
Номер
77(1), С. 363 - 379
Опубликована: Июнь 12, 2023
The
gut
microbiome
is
a
dense
and
metabolically
active
consortium
of
microorganisms
viruses
located
in
the
lower
gastrointestinal
tract
human
body.
Bacteria
their
(phages)
are
most
abundant
members
microbiome.
Investigating
biology
interplay
between
two
important
if
we
to
understand
roles
health
disease.
In
this
review,
summarize
recent
advances
resolving
taxonomic
structure
ecological
functions
complex
community
phages
gut-the
phageome.
We
discuss
how
age,
diet,
geography
can
all
have
significant
impact
on
phageome
composition.
note
that
alterations
been
observed
several
diseases
such
as
inflammatory
bowel
disease,
irritable
syndrome,
colorectal
cancer,
evaluate
whether
these
changes
directly
or
indirectly
contribute
disease
etiology
pathogenesis.
also
highlight
lack
standardization
studying
has
contributed
variation
reported
results.
PLoS Pathogens,
Год журнала:
2023,
Номер
19(5), С. e1011363 - e1011363
Опубликована: Май 18, 2023
Phages
play
central
roles
in
shaping
bacterial
community
biology.For
example,
lytic
phages,
by
eliminating
particular
subpopulations
of
bacteria,
control
the
composition
biofilm
communities
[1][2][3].Temperate
phages
can
infect
and
persist
a
state
called
lysogeny
[4].As
inhabitants,
lysogenic
drive
genome
evolution
via
introduction
viral
genes
that
endow
hosts
with
new
capabilities
or
regulate
host
biochemical
signaling
pathways.For
instance,
some
cyanophages
encode
photosystem
components
enhance
light
harvesting
ability
[5,6].In
Shigella
flexneri,
phage-encoded
enzymes
modify
O-antigen
sugars
enabling
serotype
conversion
[7].Similarly,
phage
hydrolyze
polysaccharide
Acinetobacter
baumannii
capsule,
altering
formation
[8].Underscoring
their
importance
to
human
health,
temperate
supply
toxin-encoding
responsible
for
diseases
including
cholera
(caused
CTX
Vibrio
cholerae),
dysentery
STX
Escherichia
coli),
diphtheria
beta
Corynebacterium
diphtheriae),
botulism
neurotoxin-encoding
Clostridium
botulinum)
[9][10][11][12].These
other
examples
highlight
fascinating
connections
between
biology
biology.In
cases,
infection
confers
benefits
bacterium,
enhancing
colonization
dissemination
from
eukaryotic
hosts.Phages
are
also
frequently
parasites,
and,
consequently,
bacteria
under
pervasive
threat
exploit
resources
continued
propagation
moreover,
kill
response
conditions.Following
infection,
undertake
one
two
lifestyle
programs
(Fig
1)
[13,14].They
enter
cycle
which
uses
replicate
package
its
into
particles.The
particles
subsequently
released,
killing
cell
promoting
cells.Alternatively,
exist
as
prophages
[13,14].Commonly,
integrates
DNA
at
discrete
site
genome.Less
commonly,
remains
an
extrachromosomal
element
plasmid-like
[15,16].In
both
prophage
replication
during
division
ensures
transmission
progeny.Phages
enact
typically
convert
route
when
bacterium
experiences
stress.The
canonical
trigger
lysogeny-to-lysis
transition
is
activation
SOS
following
damage
[13,14,17].The
notion
tuning
SOS,
connects
decision-making
vitality.Phages
thereby
"abandon"
current
long-term
survivability
becomes
uncertain.
Probiotics
are
intended
to
improve
gastrointestinal
health
when
consumed.
However,
the
probiotics
marketed
today
only
colonize
densely
populated
gut
a
limited
extent.
Bacteriophages
comprise
majority
of
viruses
in
human
virome
and
there
strong
indications
that
they
play
important
roles
shaping
microbiome.
Here,
we
investigate
use
fecal
transplantation
(FVT,
sterile
filtrated
feces)
as
mean
alter
microbiome
composition
lead
way
for
persistent
colonization
two
types
probiotics:
Lacticaseibacillus
rhamnosus
GG
(LGG)
representing
well-established
probiotic
Akkermansia
muciniphila
(AKM)
putative
next-generation
probiotic.
Male
female
C57BL/6NTac
mice
were
cohoused
pairs
from
4
weeks
age
received
following
treatment
by
oral
gavage
at
week
5
6:
AKM+FVT,
LGG+FVT,
sham
(Pro-sham)+FVT,
LGG+Saline,
AKM+Saline,
control
(Pro-sham+Saline).
The
FVT
donor
material
originated
with
high
relative
abundance
A.
muciniphila.
All
animals
terminated
9
weeks.
did
not
increase
administered
LGG
or
AKM
recipient
mice.
Instead
significantly
(p
<
0.05)
increased
naturally
occurring
compared
control.
This
highlights
potential
propagating
existing
commensal
“probiotics”
have
already
permanently
colonized
gut.
Being
co-housed
male
female,
fraction
became
pregnant.
Unexpectedly,
treated
found
higher
fertility
rate
independent
administration.
These
preliminary
observations
urge
follow-up
studies
investigating
interactions
between
fertility.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Июль 5, 2023
The
human
gastrointestinal
tract
is
colonized
by
a
large
number
of
microorganisms,
including
bacteria,
archaea,
viruses,
and
eukaryotes.
bacterial
community
has
been
widely
confirmed
to
have
significant
impact
on
health,
while
particularly
phages,
received
less
attention.
Phages
are
viruses
that
specifically
infect
bacteria.
They
abundant
in
the
biosphere
exist
symbiotic
relationship
with
their
host
Although
application
high-throughput
sequencing
bioinformatics
technology
greatly
improved
our
understanding
genomic
diversity,
taxonomic
composition,
spatio-temporal
dynamics
gut
phageome,
there
still
portion
data
uncharacterized.
Preliminary
studies
predicted
phages
play
crucial
role
driving
microbial
ecology
evolution.
Prior
exploring
function
it
necessary
address
obstacles
hinder
establishing
comprehensive
database
sufficient
biological
properties
phage-bacteria
interactions
health.
In
this
study,
we
provide
an
overview
its
structure,
development.
We
also
explore
various
factors
may
influence
phageome
based
current
research,
age,
diet,
ethnicity,
geographical
location.
Additionally,
summarize
between
diseases,
such
as
IBD,
IBS,
obesity,
diabetes,
metabolic
syndrome.
Science Translational Medicine,
Год журнала:
2023,
Номер
15(723)
Опубликована: Ноя. 22, 2023
Obesity
has
become
a
worldwide
pandemic
affecting
more
than
650
million
people
and
is
associated
with
high
burden
of
morbidity.
Alongside
traditional
risk
factors
for
obesity,
the
gut
microbiome
been
identified
as
potential
factor
in
weight
regulation.
Although
rodent
studies
suggest
link
between
body
weight,
human
evidence
causality
remains
scarce.
In
this
Review,
we
postulate
that
existing
to
establish
contribution
development
obesity
humans
but
modified
probiotic
strains
supraphysiological
dosages
microbial
metabolites
may
be
beneficial
combatting
obesity.
Cell Reports,
Год журнала:
2024,
Номер
43(2), С. 113728 - 113728
Опубликована: Янв. 31, 2024
Cardiometabolic
diseases
are
leading
causes
of
mortality
in
Western
countries.
Well-established
risk
factors
include
host
genetics,
lifestyle,
diet,
and
the
gut
microbiome.
Moreover,
bacterial
communities
their
activities
can
be
altered
by
bacteriophages
(also
known
simply
as
phages),
bacteria-infecting
viruses,
making
these
biological
entities
key
regulators
human
cardiometabolic
health.
The
manipulation
populations
phages
enables
possibility
using
treatment
through
phage
therapy
fecal
viral
transplants.
First,
however,
a
deeper
understanding
role
phageome
is
required.
In
this
review,
we
first
introduce
component
microbiome
discuss
transplants
relation
to
diseases.
We
then
summarize
current
state
research
propose
how
might
indirectly
influence
health
bacteria
metabolites.
BMJ Open,
Год журнала:
2024,
Номер
14(3), С. e074659 - e074659
Опубликована: Март 1, 2024
Patients
with
inflammatory
bowel
disease
(IBD)
may
experience
comorbidities
involving
metabolic
syndrome
(MetS).
However,
this
association
remains
controversial.
Our
objective
was
to
estimate
the
prevalence
of
MetS
in
patients
IBD
and
assess
whether
is
more
strongly
associated
ulcerative
colitis
(UC)
or
Crohn's
(CD).
This
article
summarizes
the
state
of
science
on
role
gut
microbiota
(GM)
in
diabetes
from
a
recent
international
expert
forum
organized
by
Diabetes,
Diabetes
Care,
and
Diabetologia,
which
was
held
at
European
Association
for
Study
2023
Annual
Meeting
Hamburg,
Germany.
Forum
participants
included
clinicians
basic
scientists
who
are
leading
investigators
field
intestinal
microbiome
metabolism.
Their
conclusions
were
as
follows:
1)
GM
may
be
involved
pathophysiology
type
2
diabetes,
microbially
produced
metabolites
associate
both
positively
negatively
with
disease,
mechanistic
links
functions
(e.g.,
genes
butyrate
production)
glucose
metabolism
have
recently
emerged
through
use
Mendelian
randomization
humans;
2)
highly
individualized
nature
poses
major
research
obstacle,
large
cohorts
deep-sequencing
metagenomic
approach
required
robust
assessments
associations
causation;
3)
because
single-time
point
sampling
misses
intraindividual
dynamics,
future
studies
repeated
measures
within
individuals
needed;
4)
much
will
to
determine
applicability
this
expanding
knowledge
diagnosis
treatment,
novel
technologies
improved
computational
tools
important
achieve
goal.
Nutrients,
Год журнала:
2023,
Номер
15(4), С. 977 - 977
Опубликована: Фев. 15, 2023
The
human
gastrointestinal
tract
contains
large
communities
of
microorganisms
that
are
in
constant
interaction
with
the
host,
playing
an
essential
role
regulation
several
metabolic
processes.
Among
gut
microbial
communities,
bacteriome
has
been
most
widely
studied
recent
decades.
However,
years,
there
increasing
interest
studying
influences
other
groups
can
exert
on
host.
them,
virome
is
attracting
great
because
viruses
interact
host
immune
system
and
functions;
this
also
case
for
phages,
which
bacterial
microbiota.
antecedents
virome-rectification-based
therapies
among
various
diseases
were
investigated.
In
near
future,
stool
metagenomic
investigation
should
include
identification
bacteria
as
well
their
correlation
networks,
to
better
understand
microbiota
activity
disease
progression.