Gut Microbiota Secondary Metabolites: Key Roles in GI Tract Cancers and Infectious Diseases
Eman K. E. Anwer,
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Muhammad Ajagbe,
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Mohamed Sherif
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et al.
Biomedicines,
Journal Year:
2025,
Volume and Issue:
13(1), P. 100 - 100
Published: Jan. 3, 2025
The
gut
microbiota,
a
dynamic
ecosystem
of
trillions
microorganisms,
produces
secondary
metabolites
that
profoundly
influence
host
health.
Recent
research
has
highlighted
the
significant
role
these
metabolites,
particularly
short-chain
fatty
acids,
indoles,
and
bile
in
modulating
immune
responses,
impacting
epigenetic
mechanisms,
contributing
to
disease
processes.
In
gastrointestinal
(GI)
cancers
such
as
colorectal,
liver,
gastric
cancer,
microbial
can
drive
tumorigenesis
by
promoting
inflammation,
DNA
damage,
evasion.
Conversely,
same
hold
therapeutic
promise,
potentially
enhancing
responses
chemotherapy
immunotherapy
even
directly
suppressing
tumor
growth.
addition,
play
crucial
roles
infectious
susceptibility
resilience,
mediating
pathways
impact
pathogen
resistance.
By
consolidating
recent
insights
into
microbiota's
shaping
health,
this
review
underscores
potential
targeting
microbiome-derived
for
treating
GI
diseases
calls
further
microbiome-based
interventions.
Language: Английский
Causal effect of gut microbiota on pancreatic cancer: A Mendelian randomization and colocalization study
Journal of Cellular and Molecular Medicine,
Journal Year:
2024,
Volume and Issue:
28(8)
Published: March 25, 2024
Abstract
The
causal
relationship
between
gut
microbiota
(GM)
and
pancreatic
cancer
(PC)
remains
unclear.
This
study
aimed
to
investigate
the
potential
genes
underlying
this
mechanism.
GM
Genome‐wide
association
(GWAS)
summary
data
were
from
MiBioGen
consortium.
PC
GWAS
National
Human
Genome
Research
Institute‐European
Bioinformatics
Institute
(NHGRI‐EBI)
Catalogue.
To
detect
PC,
we
implemented
three
complementary
Mendelian
randomization
(MR)
methods:
Inverse
Variance
Weighting
(IVW),
MR‐Egger
Weighted
Median,
followed
by
sensitivity
analyses.
Furthermore,
integrated
with
blood
cis‐expression
quantitative
trait
loci
(eQTLs)
cis‐DNA
methylation
QTL
(mQTLs)
using
Summary
data‐based
Randomization
(SMR)
methods.
integration
prioritize
GM‐affecting
through
SMR
analysis
of
two
molecular
traits.
cis‐eQTLs
cis‐mQTLs
summarized
Cancer
Atlas
(TCGA)
data.
Through
colocalization
cis‐QTLs
data,
identified
common
that
influence
both
PC.
Our
found
a
including
four
protective
five
risk‐associated
[Inverse
p
<
0.05].
No
significant
heterogeneity
instrumental
variables
(IVs)
or
horizontal
pleiotropy
was
found.
gene
SVBP
as
traits
(FDR<0.05,
P_HEIDI>0.05).
Additionally,
genes,
MCM6
RPS26,
implicated
in
interaction
based
on
(PPH4>0.5).
In
summary,
provides
evidence
for
future
research
at
developing
suitable
therapeutic
interventions
disease
prevention.
Language: Английский
Association between the gut microbiota, inflammatory factors, and colorectal cancer: evidence from Mendelian randomization analysis
Mingwei Ma,
No information about this author
Zicheng Zheng,
No information about this author
Jie Li
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et al.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: March 18, 2024
Colorectal
cancer
(CRC)
is
one
of
the
most
common
malignant
tumors
primarily
affecting
individuals
over
age
50
years.
Recent
studies
have
suggested
that
dysbiosis
gut
microbiota,
a
community
microorganisms
in
human
gut,
closely
associated
with
occurrence
and
development
CRC.
Additionally,
inflammatory
factors
(IFs)
also
been
reported
to
play
significant
role
However,
causal
relationships
between
IFs,
CRC
remain
unclear.
In
this
study,
we
performed
Mendelian
randomization
(MR)
analysis
using
publicly
available
genome-wide
association
study
(GWAS)
data
explore
relationship
The
microbiota
GWAS
were
obtained
from
MiBioGen
while
IFs
derived
comprehensive
three
independent
cohorts.
Causal
was
conducted
appropriate
instrumental
variables
(IVs)
statistical
models.
MR
revealed
negative
correlation
Lachnospiraceae
species
risk,
positive
observed
Porphyromonadaceae
species,
UCG010
genus,
Lachnospira
Sellimonas
genus
risk.
IL-10
These
findings
suggest
might
be
an
increased
risk
specific
bacterial
groups
may
crucial
Using
analysis,
as
well
CRC,
provide
important
clues
for
potential
roles
regulation
factor
control
prevention
treatment
Language: Английский
Parabacteroides johnsonii Inhibits the Onset and Progression of Colorectal Cancer by Modulating the Gut Microbiota
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Abstract
Background
Colorectal
cancer
(CRC)
is
the
third
most
prevalent
malignant
tumor
and
second
leading
cause
of
cancer-related
deaths
globally.
The
genus
Parabacteroides
an
important
component
gut
microbiota.
P.
distasonis
goldsteinii
are
reported
probiotics,
their
roles
in
CRC
have
been
investigated
related
studies.
However,
association
between
johnsonii
remains
unknown.
Methods
(10–42)
Lactococcus
formosensis
(22–2)
were
isolated
from
healthy
human
feces.
25
mice
that
demonstrated
normal
feeding
activity
randomly
assigned
to
four
groups
:
control
(NC
group),
model
(IC
(PJ
L.
(LO
group).
Colonic
tissues
IC,
PJ,
LO
colon
NC
group
then
collected
for
HE
staining
immunohistochemical
staining.
Fecal
samples
during
hyperproliferative
adenoma
phases
Metagenomic
sequencing
metabolite
analysis.
Results
intervention
reduced
number
slowed
growth
colonic
tumors,
improved
histological
scores,
decreased
microenvironmental
inflammation
levels.
composition
intestinal
flora
with
cancer,
increased
microbial
species
diversity,
maintained
microbiota
stability.
Furthermore,
abundance
Bifidobacterium
pseudolongum
Lactobacillus,
which
play
a
role
ameliorating
AOM/DSS-induced
dysbiosis.
affected
metabolic
pathways,
including
amino
sugar
degradation
galactose
metabolism,
sphingolipid
synthesis,
acid
polyphenol
synthesis
tryptophan
metabolism
pathway
as
primary
being
affected.
Conclusion
Our
study
profiled
administration
reduces
tumors
lower
staging
by
modulating
its
metabolites
at
early
stages.
Language: Английский
Unraveling the causal link: fatty acids and inflammatory bowel disease
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: July 25, 2024
Previous
observational
studies
have
revealed
the
strong
relationship
between
fatty
acids
(FA)
and
inflammatory
bowel
disease
(IBD).
Nonetheless,
due
to
inherent
limitations
of
retrospective
research,
causality
two
has
not
been
clearly
established.
Language: Английский
Causal Relationship and Potential Common Pathogenic Mechanisms Between Alopecia Areata and Related Cancer
Zexin Zhu,
No information about this author
Xiaoxue Wang
No information about this author
Clinical Cosmetic and Investigational Dermatology,
Journal Year:
2024,
Volume and Issue:
Volume 17, P. 2911 - 2921
Published: Dec. 1, 2024
Alopecia
areata
(AA)
is
an
autoimmune
skin
disease.
Observational
studies
have
reported
association
between
AA
and
cancer.
However,
the
causal
relationship
cancer
has
not
been
reported.
We
employed
a
two-sample
Mendelian
randomization
(MR)
study
to
assess
causality
17
subtypes
of
cancers.
Language: Английский