Autoimmune thyroid disease and type 1 diabetes mellitus: same pathogenesis; new perspective?

Area of Science:

• Endocrinology
• Immunology
• Genetics

Background:

• Autoimmune thyroid disease (AITD) and type 1 diabetes mellitus (T1DM) are common autoimmune conditions that frequently coexist.
• Patients with T1DM exhibit an elevated risk for developing AITD.
• The pathogenesis of T1DM and AITD is believed to involve a complex interplay of genetic and nongenetic factors.

Purpose of the Study:

• To review and synthesize current knowledge on the pathogenic factors contributing to T1DM and AITD.
• To explore the shared and distinct etiological elements of these two autoimmune diseases.
• To provide insights for the development of future immunotherapies for autoimmune disorders.

Main Methods:

• Literature review and synthesis of existing research.
• Identification and analysis of key genetic and environmental factors implicated in T1DM and AITD pathogenesis.
• Discussion of potential targets for immunotherapy.

Main Results:

• Key pathogenic factors identified include human leukocyte antigen (HLA), autoimmune regulator (AIRE), lymphoid protein tyrosine phosphatase (PTPN22), forkhead box protein P3 (FOXP3), cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), infections, vitamin D deficiency, and chemokine (C-X-C motif) ligand (CXCL).
• These factors contribute variably to the development of T1DM and AITD.
• Understanding these factors is crucial for elucidating disease mechanisms.

Conclusions:

• The co-occurrence of T1DM and AITD is influenced by shared and individual pathogenic factors.
• Further research into these factors can guide the development of targeted immunotherapies.
• This review highlights the complex etiology of autoimmune diseases and potential avenues for treatment.