Integrative single-cell transcriptomics and mendelian randomization identifies BTN3A2 as a shared protective factor in Behçet’s disease and inflammatory bowel disease - Report - MDSpire

Integrative single-cell transcriptomics and mendelian randomization identifies BTN3A2 as a shared protective factor in Behçet’s disease and inflammatory bowel disease

  • By

  • Qinjin Dai

  • Yuelan Wu

  • Wenbo Geng

  • Mengna Li

  • Wanyun Zhang

  • Yuxian Lai

  • Pei Zhang

  • Chunjiang Zhou

  • Yinuo Wang

  • Qingfeng Cao

  • Xiang Luo

  • Yujie Lai

  • Changwei Huang

  • Peizeng Yang

  • June 24, 2026

  • 0 min

Share

Clinical Report: BTN3A2 as a Common Protective Factor in Behçet’s Disease and IBD

Overview

This study identifies BTN3A2 as a shared protective factor in Behçet’s disease (BD) and inflammatory bowel disease (IBD). It provides experimental evidence of their comorbidity.

Background

Behçet’s disease and inflammatory bowel disease are chronic inflammatory disorders with significant clinical and immunological overlap. This research aims to explore the potential commonalities in the pathogenesis of these two diseases.

Data Highlights

No numerical data provided in the source material.

Key Findings

  • scRNA-seq analysis showed a decrease in CD4+ TEM_TH1-like cells in both BD and IBD.
  • BTN3A2 was identified as a protective gene in both BD and IBD.
  • Co-localization analysis indicated spatial consistency between BTN3A2 eQTL and BD GWAS signals.
  • Distinct cell-cell communication networks were observed between BTN3A2+ and BTN3A2- CD4+ TEM_TH1-like cells.
  • EAU mouse model exhibited IBD-like colonic pathology alongside BD-like ocular inflammation.
  • Independent datasets showed downregulation of BTN3A2 at mRNA and protein levels in BD patients with uveitis.

Clinical Implications

The identification of BTN3A2 as a protective factor may inform future research directions.

Conclusion

This study establishes BTN3A2 as a common protective factor in BD and IBD, linking ocular inflammation in BD to intestinal pathology.

Related Resources & Content

  1. EULAR recommendations for the management of Behçet's syndrome: 2025 update - PubMed
  2. Impact of rs2032582 Variant in ATP Binding Cassette Subfamily B Member 1 on Inflammatory Bowel Disease Risk: A Comprehensive Meta-Analysis Involving 14,876 Participants
  3. Exploration of New Potential Therapeutic Targets for Inflammatory Bowel Disease Through Mendelian Randomization Analysis
  4. Blood Cancer Journal — Functional Assessment and Validation of GWAS-Identified Genetic Variants Linked to Chronic Lymphocytic Leukemia: Insights from the CRuCIAL Study
  5. Blood Cancer Journal — B Cell Receptor Signaling Regulates APOBEC3 Expression Through Direct Enhancer Interaction in B Cells Affected by Chronic Lymphocytic Leukemia
  6. EULAR recommendations for the management of Behçet's syndrome: 2025 update - PubMed
  7. Official journal of the American College of Gastroenterology | ACG
  8. U.S. FDA approves TREMFYA® (guselkumab), the first and only IL-23 inhibitor offering both subcutaneous and intravenous induction options, for adult patients with moderately to severely active Crohn's disease

Original Source(s)

Integrative single-cell transcriptomics and mendelian randomization identifies BTN3A2 as a shared protective factor in Behçet’s disease and inflammatory bowel disease

  • by Qinjin Dai, Yuelan Wu, Wenbo Geng, Mengna Li, Wanyun Zhang, Yuxian Lai, Pei Zhang, Chunjiang Zhou, Yinuo Wang, Qingfeng Cao, Xiang Luo, Yujie Lai, Changwei Huang, Peizeng Yang

  • June 24, 2026

Related Content

NPs Top US Jobs List Again

The nurse practitioner profession claims the No. 1 spot across three categories in the U.S. News & World Report 2026 Best Jobs rankings for the third consecutive year.

The role of a multidisciplinary approach in the early and differential diagnosis of inflammatory bowel disease–related spondyloarthritis: insights from a cross-sectional study

Development and Validation of a Sexual Quality of Life Score for Youths With Inflammatory Bowel Disease