A study examining the genetic and immunological determinants among children who develop type 1 diabetes, with the aim of elucidating the disease’s underlying heterogeneity and advancing understanding of why different children progress to disease onset

Type 1 diabetes (T1D) in children is increasingly recognized as a heterogeneous disease. Although traditionally viewed as an autoimmune condition, growing evidence indicates substantial variation in its clinical presentation, progression, genetic underpinnings, and immune responses. This heterogeneity has important implications for our understanding of the disease’s etiology—its causes and mechanisms.

Differences in HLA genes constitute a major contributor to disease risk, yet genetic variants outside the HLA region also play significant roles, with varying relevance across populations. Moreover, some children with T1D lack the classical genetic risk factors, suggesting that alternative disease mechanisms may be involved. Variations in autoantibody profiles and their combinations further imply that multiple immunological pathways may lead to disease onset.

We aim to map the complex factors—genetic, immunological, and environmental—that contribute to T1D in order to better understand the disease’s heterogeneity.
Our goal is to identify distinct subtypes that may reveal different mechanisms of disease initiation and progression, and to help pinpoint genetic or environmental triggering factors. By identifying subgroups with differing etiologies (e.g., virus induced or microbiome mediated), tailored preventive strategies can be developed.

By integrating genetic, immunological, and environmental data with treatment outcomes, we can advance the development of more precise, individualized therapies that meet the needs of different patient subgroups and move clinical care toward a more person centered approach.