Autoimmunity and Atopic Disease in Childhood

Autoimmune and atopic conditions represent two major categories of chronic immune‐mediated disorders in children. Autoimmunity arises when tolerance to self‐antigens fails, leading to diseases such as type 1 diabetes, coeliac disease and thyroiditis, whereas atopic disorders involve hypersensitivity driven by immunoglobulin E responses to environmental allergens, manifesting as asthma, atopic dermatitis and allergic rhinitis. Historically, the Th1/Th2 paradigm suggested mutual exclusivity between these pathways, yet growing evidence indicates considerable overlap in genetic predisposition, epithelial barrier integrity, gut microbiota and regulatory networks. This convergence challenges established models and points towards shared immunological triggers, including cytokine imbalances and impaired T regulatory cell function. Clinically, the coexistence of autoimmunity and atopy in childhood has important implications for early detection, risk stratification and personalised management, especially as both groups of disorders show rising incidence worldwide.

Research from Nature Portfolio

Recent large‐scale registry analyses have refined our understanding of bidirectional links between type 1 diabetes and atopic diseases. One national cohort study of children found no overall increase in rates of atopic dermatitis, allergic rhinitis or asthma following a diagnosis of type 1 diabetes after age five, although an elevated risk of persistent wheezing in the early years suggests subtle early immune perturbations. Conversely, children presenting with persistent wheezing had a modestly increased risk of later onset type 1 diabetes, highlighting a potential window of early immune dysregulation.

Another nationwide investigation examined childhood asthma as a predictor of subsequent autoimmune conditions. This work revealed that children with asthma face higher hazards of developing type 1 diabetes and inflammatory bowel disease than their non‐asthmatic peers. These findings run counter to rigid Th1/Th2 expectations and underscore the likelihood of shared environmental or genetic factors that predispose to both atopic and autoimmune pathways.

Autoimmunity and Atopic Disease in Childhood publication trend

The graph below shows the total number of articles in autoimmunity and atopic disease in childhood across all publications each year (not limited to Nature Index journals).

Technical terms

Autoimmunity: Immune response directed against self‐antigens leading to tissue damage.

Atopic disease: Hypersensitivity conditions mediated by immunoglobulin E, such as asthma and eczema.

Th1/Th2 paradigm: Historical model describing two polarised helper T-cell pathways, one driving autoimmunity (Th1) and the other atopy (Th2).

Cytokines: Soluble proteins that mediate and regulate immune and inflammatory responses.

T regulatory (Treg) cells: Subset of T cells that suppress excessive immune activation and maintain self‐tolerance.

Gut microbiota dysbiosis: Alterations in the composition or function of intestinal microbes that can influence systemic immunity.

References

1. No associations between type 1 diabetes and atopic dermatitis, allergic rhinitis, or asthma in childhood: a nationwide Danish case-cohort study. Scientific Reports (2023).
2. Childhood asthma is associated with development of type 1 diabetes and inflammatory bowel diseases: a Danish nationwide registry study. Scientific Reports (2022).
3. Prevalence of asthma in people with type 1 diabetes mellitus: a scoping review. Allergy, Asthma & Clinical Immunology (2024).
4. Allergy and autoimmunity in children: non-mutually exclusive diseases. A narrative review. Frontiers in Pediatrics (2023).