Characterization of Phleum pratense pollen extracts by 2-D DIGE and allergen immunoreactivity.

Abstract:

:The allergen content of standardized pollen material is crucial for an effective diagnosis and treatment. However, variations in IgE reactivities of allergic patients to different preparations of Phleum pratense pollen have been reported. In order to define and directly compare the allergen composition of pollen preparations provided by different suppliers, a comprehensive proteome analysis of three different timothy grass pollen extracts was performed. More than 140 proteins were annotated comprising the pollen proteome/allergome in a global 2-D map. With regard to the individual pollen preparations, several major differences in the overall protein composition were detected that also affected known Phleum allergens and their isoforms. Importantly, these differences were also reflected at the level of antibody reactivities in 1-D and 2-D immunoblots. As a consequence, it is suggested that the observed differences should be taken into consideration aiming for a standardized diagnosis and therapy of grass pollen allergies as recommended by international medical agencies.

journal_name

Proteomics

journal_title

Proteomics

authors

Schmidt H,Gelhaus C,Nebendahl M,Janssen O,Petersen A

doi

10.1002/pmic.201000451

subject

Has Abstract

pub_date

2010-12-01 00:00:00

pages

4352-62

issue

24

eissn

1615-9853

issn

1615-9861

journal_volume

10

pub_type

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