alexa Recent progress in the genetics of Wegener's granulomatosis and Churg-Strauss syndrome.


Immunome Research

Author(s): Wieczorek S, Holle JU, Epplen JT, Wieczorek S, Holle JU, Epplen JT

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Abstract PURPOSE OF REVIEW: Recently, numerous studies have been performed to elucidate the genetic background of Wegener's granulomatosis and Churg-Strauss syndrome (CSS). Many of these investigations suffer from low statistical power, inconsistent case classification and other error-prone study designs. The majority of these findings has to be considered preliminary, if not spurious. We summarize the most important and robust findings. RECENT FINDINGS: HLA-DPB1, the association of which with Wegener's granulomatosis has been discovered some years ago, is still the strongest and best replicated risk locus for this condition. Yet, no association is demonstrable for CSS, in which another HLA locus, HLA-DR, seems to be more important. Vice versa, a strong association with IL10 promotor polymorphisms was detected in CSS but not in a large Wegener's granulomatosis panel. Numerous other associations, including CTLA4, CD226 and copy number polymorphisms of FCGR3B still need further investigation, before reliable conclusions can be drawn. SUMMARY: In order to be able to evaluate critically the genetic background of Wegener's granulomatosis and CSS future projects should take into account several aspects of study design. These preconditions include sufficient numbers of cases (i.e. statistical power) and a clear-cut classification of these cases, thus allowing differentiated analyses of certain disease subgroups. This article was published in Curr Opin Rheumatol and referenced in Immunome Research

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