Louis
Pasteur
made
seminal
discoveries
in
microbiology,
immunology
and
vaccinology
that
transformed
clinical
science
saved
millions
of
lives.
Since
the
19th
century,
our
ability
to
study
infectious
disease
has
undergone
radical
changes
due
newly
emerging
technologies
infection
models.
In
this
Editorial,
I
consider
Pasteur's
impact
on
understand
combat
context
two
modern-day
pandemics:
coronavirus
2019
(COVID-19)
antimicrobial
resistance
(AMR).
During
COVID-19
pandemic,
we
witnessed
remarkable
ambition
severe
acute
respiratory
syndrome
2
(SARS-CoV-2)
innovate
effective
vaccines
prevent
disease.
For
comparatively
overlooked
pandemic
AMR,
require
same
level
urgency
develop
alternative
approaches
antibiotic-resistant
bacterial
strains
cause
deaths
annually.
statement
"chance
only
favours
mind
which
is
prepared"
a
principle
captures
'l'esprit
Pasteur'.
This
should
continue
guide
research
disease,
for
need
support
development
predictive
models
cutting-edge
mechanistic
prepare
us
discovery
therapeutic
impact.
Cell,
Journal Year:
2022,
Volume and Issue:
185(15), P. 2756 - 2769
Published: July 1, 2022
For
decades,
insight
into
fundamental
principles
of
human
biology
and
disease
has
been
obtained
primarily
by
experiments
in
animal
models.
While
this
allowed
researchers
to
understand
many
biological
processes
great
detail,
some
developmental
mechanisms
have
proven
difficult
study
due
inherent
species
differences.
The
advent
organoid
technology
more
than
10
years
ago
established
laboratory-grown
organ
tissues
as
an
additional
model
system
recapitulate
human-specific
aspects
biology.
use
3D
organoids,
well
other
advances
single-cell
technologies,
revealed
unprecedented
insights
mechanisms,
especially
those
that
distinguish
humans
from
species.
This
review
highlights
novel
with
a
focus
on
how
generated
better
understanding
development
disease.
Frontiers in Cell and Developmental Biology,
Journal Year:
2022,
Volume and Issue:
10
Published: Nov. 21, 2022
Medicine
today
faces
the
combined
challenge
of
an
increasing
number
untreatable
diseases
and
fewer
drugs
reaching
clinic.
While
pharmaceutical
companies
have
increased
in
early
development
entering
phase
I
clinical
trials,
actually
successfully
pass
III
launch
into
market.
In
fact,
only
1
out
every
9
will
launch.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2022,
Volume and Issue:
12
Published: Oct. 21, 2022
As
new
pathogens
emerge,
challenges
must
be
faced.
This
is
no
different
in
infectious
disease
research,
where
identifying
the
best
tools
available
laboratories
to
conduct
an
investigation
can,
at
least
initially,
particularly
complicated.
However,
context
of
emerging
virus,
such
as
SARS-CoV-2,
which
was
recently
detected
China
and
has
become
a
global
threat
healthcare
systems,
developing
models
infection
pathogenesis
urgently
required.
Cell-based
approaches
are
crucial
understanding
coronavirus
biology,
growth
kinetics,
tropism.
Usually,
laboratory
cell
lines
first
line
experimental
study
viral
pathogenicity
perform
assays
aimed
screening
antiviral
compounds
efficient
blocking
replication
viruses,
saving
time
resources,
reducing
use
animals.
determining
ideal
type
can
challenging,
especially
when
several
researchers
have
adapt
their
studies
specific
requirements.
review
strives
guide
scientists
who
venturing
into
studying
SARS-CoV-2
help
them
choose
right
cellular
models.
It
revisits
basic
concepts
virology
presents
currently
Frontiers in Immunology,
Journal Year:
2021,
Volume and Issue:
12
Published: Aug. 18, 2021
Respiratory
tract
infections
(RTI)
are
a
major
cause
of
morbidity
and
mortality
in
humans.
A
large
number
RTIs
is
caused
by
viruses,
often
resulting
more
severe
disease
infants,
elderly
the
immunocompromised.
Upon
viral
infection,
most
individuals
experience
common
cold-like
symptoms
associated
with
an
upper
RTI.
However,
some
cases
sometimes
life-threatening
lower
RTI
may
develop.
Reproducible
scalable
vitro
culture
models
that
accurately
reflect
human
respiratory
needed
to
study
interactions
between
viruses
host,
test
novel
therapeutic
interventions.
Multiple
cell
systems
have
been
described,
but
majority
these
based
on
immortalized
lines.
Although
useful
for
studying
certain
aspects
infections,
such
monomorphic,
unicellular
fall
short
creating
understanding
processes
occur
at
integrated
tissue
level.
Novel
involving
primary
airway
epithelial
cells
and,
recently,
organoids,
now
use.
In
this
review,
we
describe
evolution
their
characteristics
context
RTIs,
starting
from
advances
after
cultures
recently
developed
organoid
systems.
Furthermore,
how
used
virus-host
interactions,
e.g.
tropism
receptor
studies
as
well
innate
immune
system.
Finally,
provide
outlook
future
developments
field,
including
co-factors
mimic
microenvironment
tract.
Journal of Virology,
Journal Year:
2022,
Volume and Issue:
96(11)
Published: May 11, 2022
It
has
recently
been
shown
that
an
early
SARS-CoV-2
isolate
(NL-02-2020)
hijacks
interferon-induced
transmembrane
proteins
(IFITMs)
for
efficient
replication
in
human
lung
cells,
cardiomyocytes,
and
gut
organoids.
To
date,
several
"variants
of
concern"
(VOCs)
showing
increased
infectivity
resistance
to
neutralization
have
emerged
globally
replaced
the
viral
strains.
Here,
we
determined
whether
five
current
VOCs
(Alpha,
Beta,
Gamma,
Delta,
Omicron)
maintained
dependency
on
IFITM
replication.
We
found
depletion
IFITM2
strongly
reduces
RNA
production
by
all
epithelial
cancer
cell
line
Calu-3.
Silencing
IFITM1
had
modest
effects,
while
knockdown
IFITM3
resulted
intermediate
phenotype.
Strikingly,
generally
reduced
infectious
virus
more
than
4
orders
magnitude.
In
addition,
antibody
directed
against
N
terminus
inhibited
VOC
induced
pluripotent
stem
(iPSC)-derived
alveolar
type
II
thought
represent
major
target
cells
lung.
conclusion,
endogenously
expressed
(especially
IFITM2)
are
critical
cofactors
genuine
VOCs,
including
currently
dominant
Omicron
variant.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2022,
Volume and Issue:
12
Published: March 14, 2022
The
ongoing
coronavirus
disease
2019
(COVID-19)
pandemic
has
led
to
the
initiation
of
unprecedented
research
efforts
understand
pathogenesis
mediated
by
Severe
Acute
Respiratory
Syndrome
Coronavirus
2
(SARS-CoV-2).
More
knowledge
is
needed
regarding
cell
type-specific
cytopathology
and
its
impact
on
cellular
tropism.
Furthermore,
novel
SARS-CoV-2
mutations
tropism,
alternative
routes
entry,
co-infections,
virus
replication
kinetics
along
respiratory
tract
remains
be
explored
in
improved
models.
Most
applied
virology
models
are
not
well
suited
address
remaining
questions,
as
they
do
recapitulate
histoarchitecture
composition
human
tissues.
overall
aim
this
work
was
establish
from
single
biopsy
specimens,
a
adult
stem
cell-derived
organoid
model
representing
upper
airways
lungs
explore
applicability
study
infection.
First,
we
characterized
with
respect
growth
pattern
histoarchitecture,
composition,
functional
characteristics.
Next,
situ
expression
viral
entry
receptors,
including
influenza
virus-relevant
sialic
acids
receptor
ACE2
TMPRSS2,
were
confirmed
organoids
bronchiolar
alveolar
differentiation.
We
further
showed
successful
infection
pseudotype
A
H7N1
H5N1
virus,
ability
support
virus.
Finally,
clinical
isolate
TCID50
assay
immunostaining
detect
intracellular
specific
nucleocapsid
dsRNA.
prominent
syncytia
formation
tissues
following
mimics
findings
infected
.
conclude
that
organotypic
described
here
may
particularly
useful
for
studies
evaluate
regional
differences
host
response
contains
various
types
tract,
expresses
factors,
supports
SARS-CoV-2.
Thus,
serve
relevant
reliable
tool
aid
preparedness,
efficient
evaluation
antiviral
strategies.
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(2), P. 835 - 835
Published: Jan. 13, 2022
The
global
urgency
to
uncover
medical
countermeasures
combat
the
COVID-19
pandemic
caused
by
severe
acute
respiratory
syndrome-coronavirus
2
(SARS-CoV-2)
has
revealed
an
unmet
need
for
robust
tissue
culture
models
that
faithfully
recapitulate
key
features
of
human
tissues
and
disease.
Infection
nose
is
considered
dominant
initial
site
SARS-CoV-2
infection
replicate
this
entry
portal
offer
greatest
potential
examining
demonstrating
effectiveness
designed
prevent
or
manage
highly
communicable
Here,
we
test
air–liquid-interface
(ALI)
differentiated
nasal
epithelium
(HNE)
system
as
a
model
authentic
infection.
Progenitor
cells
(basal
cells)
were
isolated
from
turbinate
brushings,
expanded
under
conditionally
reprogrammed
cell
(CRC)
conditions
at
ALI.
Differentiated
inoculated
with
different
clinical
isolates.
Infectious
virus
release
into
apical
washes
was
determined
TCID50,
while
infected
visualized
immunofluorescence
confocal
microscopy.
We
demonstrate
robust,
reproducible
ALI-HNE
established
donors.
Viral
occurred
surface,
primarily
observed
in
ciliated
cells.
In
contrast
ancestral
isolate,
Delta
variant
considerable
damage.
Successful
establishment
donor
dependent.
can
serve
pre-clinical
without
invasive
collection
samples.
Viruses,
Journal Year:
2023,
Volume and Issue:
15(2), P. 428 - 428
Published: Feb. 3, 2023
The
emergence
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
has
highlighted
the
importance
having
proper
tools
and
models
to
study
pathophysiology
emerging
infectious
diseases
test
therapeutic
protocols,
assess
changes
in
viral
phenotypes,
evaluate
effects
evolution.
This
provided
a
comprehensive
characterization
Syrian
hamster
(Mesocricetus
auratus)
as
an
animal
model
for
SARS-CoV-2
infection
using
different
approaches
(description
clinical
signs,
load,
receptor
profiling,
host
immune
response)
targeting
four
organs
(lungs,
intestine,
brain,
PBMCs).
Our
data
showed
that
both
male
female
hamsters
were
susceptible
developed
disease
similar
one
observed
patients
with
COVID-19
included
moderate
pulmonary
lesions,
inflammation,
recruitment
system
lungs
at
systemic
level.
However,
all
animals
recovered
within
14
days
without
developing
pathology
seen
humans,
none
them
died.
We
found
faint
evidence
intestinal
neurological
tropism
associated
absence
lesions
minimal
response
intestines
brains,
which
another
crucial
difference
multiorgan
impairment
COVID-19.
When
comparing
hamsters,
we
males
sustained
higher
RNA
shedding
replication
lungs,
suffered
from
more
symptoms
histopathological
triggered
inflammation.
Overall,
these
confirmed
suitable
mild
reflected
sex-related
differences
against
virus
humans.