Project name: Homo sapiens

Description: Clinical score and transcript abundance patterns identify Kawasaki disease patients who may benefit from addition of methylprednisolone.Intravenous immunoglobulin (IVIG) treatment-resistant patients are high risk of developing coronary artery lesions (CALs) with Kawasaki disease (KD). The IVIG-responsive (Group A; n = 6) and -resistant patients (Group B) were predicted before starting the initial treatment using the Egami scoring system, and randomly allocated a single-IVIG treatment group (Group B1; n = 6) or a IVIG-plus-methylprednisolone (IVMP) combined therapy group (Group B2; n = 5). We investigated transcript abundance in the leukocytes of those patients using microarray analysis.Results: five patients in Group A and 1 patient in Group B1 responded to initial IVIG treatment. All Group B2 patients responded to IVIP-plus-IVMP combined therapy. Prior to performing these treatments, those transcripts related to IVIG-resistance and to the development of CALs, such as IL1R, IL18R, oncostatin M, suppressor of cytokine signaling-3, S100A12 protein, carcinoembryonic antigen-related cell adhesion molecule-1, matrix metallopeptidase-9 and polycythemia rubra vera-1 were more abundant in Group B patients in comparison to Group A patients. Moreover, those transcripts in Group B2 patients were more profoundly and broadly suppressed than Group B1 patients after treatment. Conclusion: this study elucidated the molecular mechanism of the effectiveness of IVIG-plus-IVMP combined therapy.Overall design: 34 samples of pre- and post-treatment in three groups consisting of predicted as IVIG-responsive patients, given single-IVIG treatment patients and IVIG-plus-IVMP combined therapy group in predicted as IVIG-resistant patients. Samples were analyzed without replicates.

Data type: Transcriptome or Gene expression

Sample scope: Multiisolate

Relevance: Medical

Release date: 2010-06-17

Last updated: 2009-06-24