Characterisation of Alternaria alternata Allergoids: Evaluation of the Stability of Grass Pollen Allergen Extracts Mixed with Alternaria alternata Allergoids
Journal of Fungi,
Journal Year:
2025,
Volume and Issue:
11(3), P. 181 - 181
Published: Feb. 25, 2025
Allergens
from
pollen,
mites,
and
moulds
often
sensitise
patients
simultaneously,
posing
challenges
for
developing
stable
effective
combination
vaccines.
Alternaria
alternata,
a
major
source
of
indoor
outdoor
allergens,
is
strongly
linked
to
asthma
development
contains
proteolytic
enzymes
that
can
degrade
other
potentially
reducing
vaccine
efficacy.
This
study
aimed
evaluate
the
safety,
efficacy,
stability
polymerised
A.
alternata
extracts
(allergoids)
compared
native
their
compatibility
with
pollen
(Phleum
pratense).
Allergoids
were
prepared
using
glutaraldehyde
characterised
through
SDS-PAGE,
LC-MS/MS,
NMR,
gas
chromatography.
Their
immunogenicity
IgE-binding
properties
assessed
via
Western
blot
ELISA
competition
assays,
while
enzymatic
activity
was
analysed
ApiZym
kits.
Mice
immunisation
experiments
conducted
antibody
responses.
Polymerised
exhibited
reduced
capacity
maintaining
IgG-binding
immunogenicity.
immunised
allergoids
generated
antibodies
efficiently
blocked
IgE
binding
in
allergic
patients.
Proteolytic
significantly
allergoids,
remained
when
combined
them.
These
findings
demonstrate
are
safer,
more
alternative
immunotherapy,
offering
enhanced
efficacy
injections
polysensitised
provides
critical
insights
designing
optimised
Language: Английский
Airborne Alternaria Spores: 70 Annual Records in Northwestern Spain
Journal of Fungi,
Journal Year:
2024,
Volume and Issue:
10(10), P. 681 - 681
Published: Sept. 29, 2024
This
study
presents
data
on
the
concentration
of
Alternaria
spores
in
atmosphere
northwestern
Iberian
Peninsula.
A
non-viable
volumetric
method
was
used
to
collect
samples,
resulting
a
database
70
annual.
When
annual
averages
for
each
locality
are
calculated,
Ourense
stands
out
with
2152
spores/m3,
followed
by
Vigo
and
Lugo,
while
Santiago
de
Compostela
recorded
lowest
concentrations.
Focusing
total
locality,
main
sporulation
period
started
May
ended
October
all
localities,
centered
single
phase,
an
earlier
onset
longer
duration
Vigo.
The
number
days
concentrations
excess
100
spores/m3
very
low
Compostela,
Ourense,
null
Lugo.
Temperature
meteorological
parameter
which
highest
statistical
correlation
obtained
locations,
being
favorable
air.
ranges
presence
airborne
area
ranged
from
25.5
31.2
°C.
Based
analysis
collected,
it
is
concluded
that
spore
throughout
most
year.
Language: Английский