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Journal of Clinical Immunology

Erschienen in:

01.09.2008

IL1 Gene Cluster Polymorphisms and Its Haplotypes may Predict the Risk to Develop Invasive Pulmonary Aspergillosis and Modulate C-reactive Protein Level

verfasst von: J. Sainz, E. Pérez, S. Gómez-Lopera, M. Jurado

Erschienen in: Journal of Clinical Immunology | Ausgabe 5/2008

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Abstract

Objective

The aim of this study was to determine whether interleukin-1 alpha (IL1α), interleukin-1 beta (IL1β), and IL1 receptor antagonist (IL1Ra) polymorphisms are implicated in invasive pulmonary aspergillosis (IPA) pathogenesis.

Materials and Methods

Subjects comprised 110 hematological patients and 148 healthy controls. Genotypic and allelic frequencies were similar between hematological patients and controls. IPA was diagnosed in 59 of the 110 patients according to consensus criteria published by the European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group (EORTC/IFICG).

Results and Discussions

Individual locus analysis showed that IL1α and IL1Ra polymorphisms were not associated with the presence of IPA (p = 0.560 and p = 0.680, respectively). However, a trend towards a higher presence of IL1β_- _511TT genotype (or IL1β_-511T allele) in the IPA group than in the non-IPA patient group (p = 0.092 and p = 0.095, respectively) was found. Haplotype analysis revealed that VNTR2/-889C/-511T haplotype was strongly associated with susceptibility to develop IPA infection (p = 0.020). Haplotype analysis also showed an association between VNTR2/-889C/-511C haplotype and resistance to IPA infection (p = 0.028). Furthermore, patients with IL1Ra VNTR2/2 and IL1β_-511T/T genotypes had a higher positive serum galactomannan percentage versus patients with other genotypes. Finally, C-reactive protein (CRP) production was significantly associated with IL1 gene cluster polymorphisms, although CRP values were similar between IPA and non-IPA groups.

Conclusion

These findings indicate a critical role of IL1 gene cluster polymorphisms in the susceptibility to IPA infection and CRP production.

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Titel: IL1 Gene Cluster Polymorphisms and Its Haplotypes may Predict the Risk to Develop Invasive Pulmonary Aspergillosis and Modulate C-reactive Protein Level
verfasst von: J. Sainz
E. Pérez
S. Gómez-Lopera
M. Jurado
Publikationsdatum: 01.09.2008
Verlag: Springer US
Erschienen in: Journal of Clinical Immunology / Ausgabe 5/2008
Print ISSN: 0271-9142
Elektronische ISSN: 1573-2592
DOI: https://doi.org/10.1007/s10875-008-9197-0

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