Journal of Obstetrics and Gynaecology Research,
Journal Year:
2023,
Volume and Issue:
49(4), P. 1090 - 1105
Published: Feb. 6, 2023
Abstract
Endometriosis
is
a
serious,
chronic
disorder
where
endometrial
tissue
grows
outside
the
uterus,
causing
severe
pelvic
pain
and
infertility.
It
affects
11%
of
women.
multifactorial
unclear
etiology,
although
retrograde
menstruation
plays
major
role.
has
genetic
component
with
over
40
risk
factors
mapped,
their
mechanism
action
still
emerging.
New
evidence
suggests
role
for
stem/progenitor
cells,
now
that
identifying
markers
these
cells
are
available.
Recent
lineage
tracing
clearing
microscopy
3D
reconstruction
provided
new
understanding
glandular
structure,
particularly
horizontal
orientation
interconnection
basalis
glands.
sequencing
technologies,
whole
genome
DNA
revealing
somatic
mutations,
including
in
cancer
driver
genes,
normal
eutopic
endometrium
patients
endometriosis,
as
well
ectopic
endometriotic
lesions.
Methylome
offering
insight
into
regulation
genes
environmental
factors.
Single
cell
RNA
reveals
transcriptome
individual
shedding
light
on
diversity
range
cellular
subpopulations
types
present
epithelial
organoid
cultures
replicating
epithelium
providing
tractable
models
studying
endometriosis.
Organoids
derived
from
menstrual
fluid
offer
non‐invasive
source
avenue
testing
drugs
developing
personalized
medicine
treating
These
approaches
rapidly
advancing
our
endometriosis
etiology.
Science,
Journal Year:
2022,
Volume and Issue:
376(6589)
Published: April 7, 2022
The
human
immune
system
displays
substantial
variation
between
individuals,
leading
to
differences
in
susceptibility
autoimmune
disease.
We
present
single-cell
RNA
sequencing
(scRNA-seq)
data
from
1,267,758
peripheral
blood
mononuclear
cells
982
healthy
subjects.
For
14
cell
types,
we
identified
26,597
independent
cis-expression
quantitative
trait
loci
(eQTLs)
and
990
trans-eQTLs,
with
most
showing
type-specific
effects
on
gene
expression.
subsequently
show
how
eQTLs
have
dynamic
allelic
B
that
are
transitioning
naïve
memory
states
demonstrate
commonly
segregating
alleles
lead
interindividual
function.
Finally,
using
a
Mendelian
randomization
approach,
identify
the
causal
route
by
which
305
risk
contribute
disease
at
cellular
level.
This
work
brings
together
genetic
epidemiology
scRNA-seq
uncover
drivers
of
system.
The
genetic
basis
of
most
traits
is
highly
polygenic
and
dominated
by
non-coding
alleles.
It
widely
assumed
that
such
alleles
exert
small
regulatory
effects
on
the
expression
cis
-linked
genes.
However,
despite
availability
gene
epigenomic
datasets,
few
variant-to-gene
links
have
emerged.
unclear
whether
these
sparse
results
are
due
to
limitations
in
available
data
methods,
or
deficiencies
underlying
model.
To
better
distinguish
between
possibilities,
we
identified
220
gene–trait
pairs
which
protein-coding
variants
influence
a
complex
trait
its
Mendelian
cognate.
Despite
presence
quantitative
loci
near
GWAS
associations,
applying
gene-based
approach
found
limited
evidence
baseline
trait-related
genes
explains
using
colocalization
methods
(8%
implicated),
transcription-wide
association
(2%
combination
annotations
distance
(4%
implicated).
These
contradict
hypothesis
trait-associated
coincide
with
homeostatic
QTLs,
suggesting
models
needed.
field
must
confront
this
deficit
pursue
‘missing
regulation.’
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: May 8, 2022
Abstract
Most
signals
in
genome-wide
association
studies
(GWAS)
of
complex
traits
point
to
noncoding
genetic
variants
with
putative
gene
regulatory
effects.
However,
currently
identified
expression
quantitative
trait
loci
(eQTLs)
explain
only
a
small
fraction
GWAS
signals.
By
analyzing
hits
for
the
UK
Biobank,
and
cis-eQTLs
from
GTEx
consortium,
we
show
that
these
assays
systematically
discover
different
types
genes
variants:
eQTLs
cluster
strongly
near
transcription
start
sites,
while
do
not.
Genes
are
enriched
numerous
functional
annotations,
under
strong
selective
constraint
have
landscape
across
tissue/cell
types,
depleted
most
relaxed
constraint,
simpler
landscapes.
We
describe
model
understand
observations,
including
how
natural
selection
on
hinders
discovery
functionally-relevant
eQTLs.
Our
results
imply
eQTL
biased
toward
variants,
support
use
complementary
approaches
alongside
next
generation
studies.
Science,
Journal Year:
2023,
Volume and Issue:
380(6644), P. 485 - 490
Published: May 4, 2023
Autoimmune
diseases
display
a
high
degree
of
comorbidity
within
individuals
and
families,
suggesting
shared
risk
factors.
Over
the
past
15
years,
genome-wide
association
studies
have
established
polygenic
basis
these
common
conditions
revealed
widespread
sharing
genetic
effects,
indicative
immunopathology.
Despite
ongoing
challenges
in
determining
precise
genes
molecular
consequences
variants,
functional
experiments
integration
with
multimodal
genomic
data
are
providing
valuable
insights
into
key
immune
cells
pathways
driving
diseases,
potential
therapeutic
implications.
Moreover,
ancient
populations
shedding
light
on
contribution
pathogen-driven
selection
pressures
to
increased
prevalence
autoimmune
disease.
This
Review
summarizes
current
understanding
disease
genetics,
including
mechanisms,
evolutionary
origins.