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The analysis of interleukin-1 receptor antagonist and interleukin-1β gene polymorphisms in Turkish FMF patients: do they predispose to secondary amyloidosis?

B. Balci-Peynircioğlu, Z. E. Taşkıran, B. Türel, M. Arıcı, A. Bakkaloğlu, S. Özen, E. Yılmaz


2008 Vol.26, N°4 ,Suppl.50
PI 0099, PF 0102
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PMID: 19026124 [PubMed]


Amyloid development in familial Mediterranean fever (FMF) patients is associated with acute phase response and the acute phase reactant serum amyloid A which is induced by IL-1Β. Its concentration can increase to more than 1000 fold during inflammation. In view of the inflammatory nature of FMF disease we have investigated whether IL-1Β and IL-1 receptor antagonist gene polymorphisms may be involved in amyloid development in FMF patients.
Ninety-nine FMF patients without amyloidosis; 54 FMF patients with amyloidosis and 60 healthy controls samples were genotyped for IL-1Β-511 (C/T) and IL-1Β+3953 (C/T) polymorphisms using PCR-RFLP and for IL-1Ra VNTR polymorphism using PCR.
The allele and genotype frequencies of IL-1Β-511 (C/T), IL-1Β+3953 (C/T) and IL-1Ra VNTR polymorphisms in FMF patients with and without amyloidosis were all compared with those in controls. There were no significant differences between FMF patients with and without amyloidosis and healthy control samples for these polymorphisms (all P-values are >0.05). These polymorphisms were not associated with M694V mutation in FMF patients with and without amyloidosis.
IL-1Β-511 (C/T), IL-1Β+3953 (C/T) and IL-1Ra VNTR polymorphisms are not associated with the development of amyloid in FMF patients.

Rheumatology Article