Methods of diagnosing clinical substypes of crohn's disease with characteristic responsiveness to anti-th1 cytokine therapy and a kit for diagnosing the same

摘要

The present invention provides methods based on serological and genetic markers for diagnosing clinical subtypes of Crohn's disease (CD) having characteristic responsiveness to anti-Th1 cytokine therapy. In the methods of the invention, the presence of perinuclear anti-neutrophil antibody (pANCA), the presence of the TNFa10b4c1d3e3 haplotype or the presence of TNFa11b4c1d3e3 haplotype each is independently diagnostic of a clinical subtype of CD having an inferior clinical response to anti-Th1 cytokine therapy. In addition, the presence of the homozygous TNF-β 1111 haplotype involving the TNFc, aa13L, aa26 and NcoI loci is independently diagnostic of a clinical subtype of CD having an inferior clinical response to anti-Th1 cytokine therapy. The presence of speckling anti-pan polymorphonuclear antibody (SAPPA) is diagnostic of a clinical subtype of CD having a superior clinical response to anti-Th1 cytokine therapy.