Potential viral pathogenic mechanism in human type 1 diabetes

Diabetologia. 2014 Oct;57(10):2009-18. doi: 10.1007/s00125-014-3340-7. Epub 2014 Jul 30.


In type 1 diabetes, as a result of as yet unknown triggering events, auto-aggressive CD8(+) T cells, together with a significant number of other inflammatory cells, including CD8(+) T lymphocytes with unknown specificity, infiltrate the pancreas, leading to insulitis and destruction of the insulin-producing beta cells. Type 1 diabetes is a multifactorial disease caused by an interactive combination of genetic and environmental factors. Viruses are major environmental candidates with known potential effects on specific key points in the pathogenesis of type 1 diabetes and recent findings seem to confirm this presumption. However, we still lack well-grounded mechanistic explanations for how exactly viruses may influence type 1 diabetes aetiology. In this review we provide a summary of experimentally defined viral mechanisms potentially involved in the ontology of type 1 diabetes and discuss some novel hypotheses of how viruses may affect the initiation and natural history of the disease.

Publication types

  • Review

MeSH terms

  • Autoimmunity / immunology
  • CD8-Positive T-Lymphocytes / immunology
  • Diabetes Mellitus, Type 1 / etiology*
  • Diabetes Mellitus, Type 1 / immunology
  • Diabetes Mellitus, Type 1 / virology*
  • Humans
  • Virus Diseases / complications
  • Virus Diseases / immunology