Dataset Information


Genome-wide expression kinetics of children with T1D-associated autoantibodies compared to healthy matched controls II

ABSTRACT: To unravel genes and molecular pathways involved in the pathogenesis of type 1 diabetes (T1D), we performed genome-wide gene expression profiling of prospective venous blood samples from children developing T1D-associated autoantibodies or progressing towards clinical diagnosis. 58 peripheral blood RNA samples from 4 autoantibody-positive children and their matched controls were analyzed with Illumina Sentrix WG-6 v2 genome-wide arrays, in order to study the gene expression changes occuring during the pathogenesis of Type 1 diabetes (T1D). Each case child (positive for T1D-specific autoantibodies) was matched with a persistently autoantibody-negative control child, with the same HLA-DQB1 risk category, gender, and place and date of birth. Seroconversion is determined as the first detection of T1D-specific autoantibody/autoantibodies (ICA titre >4 JDFU, IAA >3.47 RU, GADA >5.4 RU, IA-2A >0.43 RU, ZnT8A >0.61 RU).

ORGANISM(S): Homo sapiens  

SUBMITTER: Harri Lähdesmäki   Cisca Wijmenga  Heikki Hyöty  Jorma Ilonen  Essi Laajala  Riitta Veijola  Mikael Knip  Riitta Lahesmaa  Tuula Simell  Juha Mykkänen  Matti Vaarma  Isis Ricaño-Ponce  Laura L Elo  Olli Simell  Teemu D Laajala  Henna Kallionpää 

PROVIDER: E-GEOD-30209 | ArrayExpress | 2014-02-20



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The insult leading to autoantibody development in children who will progress to develop type 1 diabetes (T1D) has remained elusive. To investigate the genes and molecular pathways in the pathogenesis of this disease, we performed genome-wide transcriptomics analysis on a unique series of prospective whole-blood RNA samples from at-risk children collected in the Finnish Type 1 Diabetes Prediction and Prevention study. We studied 28 autoantibody-positive children, out of which 22 progressed to cli  ...[more]

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