Can we cure Behçet syndrome?

Area of Science:

• Rheumatology
• Immunology
• Genetics

Background:

• Behçet syndrome management has advanced, yet a definitive cure is lacking.
• Understanding the underlying causes and disease mechanisms remains a significant challenge.
• Existing research often overlooks critical factors like distinct phenotypes, variable treatment responses, and geographical/ethnic variations.

Purpose of the Study:

• To critically evaluate the current understanding of Behçet syndrome.
• To highlight the heterogeneity of Behçet syndrome and its implications for research.
• To advocate for a "splitter" approach in classifying Behçet syndrome subtypes.

Main Methods:

• Review of existing literature on Behçet syndrome.
• Analysis of clinical presentation, treatment responses, and genetic associations.
• Examination of geographical and ethnic variations in disease expression.

Main Results:

• Behçet syndrome exhibits diverse phenotypes, organ involvement, and responses to therapies, suggesting it may not be a single entity.
• Geographical and ethnic factors significantly influence disease presentation, including pathergy reaction and HLA-B51 association.
• Male patients generally experience a more severe disease course than females, a factor often underrepresented in research.

Conclusions:

• The heterogeneity of Behçet syndrome necessitates a "splitter" approach, classifying distinct subtypes rather than a "lumped" entity.
• Further research is required to elucidate specific causes and mechanisms for different Behçet syndrome phenotypes.
• Addressing sex-based differences and incorporating diverse patient populations are crucial for advancing Behçet syndrome research and treatment.