Abstract:
AIMS:We studied the influence of IL-4 gene polymorphisms on the IPF phenotype, i.e., extent of radiological changes (HRCT interstitial (IS) and alveolar (AS) score) and histopathological markers from lung biopsies. PATIENTS AND METHODS:46 IPF patients underwent genotyping, 43 of them had HRCT and 14 patients had a surgical lung biopsy. The HRCT scans were evaluated for AS and IS. The histopathological evaluation comprised myofibroblast foci (MF), intensity of inflammation and fibrosis (Ashcroft score) and numbers of eosinophils and granulomas. For immunohistochemical evaluation primary antibodies against PAR-2, CD124, TGF beta, YY-1 and TSLP were used. The IL-4 and IL-4 R alpha gene polymorphisms were characterized. RESULTS:We found a correlation between eosinophils in lung biopsies and AS. The Ashcroft score was higher in IL-4 HA 2 GCC and MF were more frequent in IL-4 HA 2 TCC carriers. A relationship was found between IL-4 (-1098) A2 T and PAR-2 expression and IL-4 (-590) A1 T, IL-4 HA1TTT and CD124 expression. AS was lower in IL-4 (-590) A1 C, in IL-4 HA1 TCC and in IL-4RA (+1902) A1 A carriers. CONCLUSIONS:We suggest that the polymorphisms of IL-4 genes might influence the phenotype of IPF reflected by histopathological changes in lung biopsies and HRCT score.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Vasakova M,Sterclova M,Matej R,Olejar T,Kolesar L,Skibova J,Striz Idoi
10.1016/j.humimm.2013.07.011subject
Has Abstractpub_date
2013-10-01 00:00:00pages
1346-51issue
10eissn
0198-8859issn
1879-1166pii
S0198-8859(13)00212-7journal_volume
74pub_type
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