Multi-omics analyses reveal the pathogenic role of terminal ileum-derived IgA+β7+ cells in IgA nephropathy.

Key Points

• The research aims to understand the role of terminal ileum-derived IgA+β7+ cells in IgA nephropathy (IgAN).
• Conducted multi-omics analyses of B cell behavior in the terminal ileum.
• Examined the interactions between α4β7 and MAdCAM-1.
• Analyzed the dysregulation of B cell responses in IgAN.
• Identified a significant correlation between IgA+β7+ cells and IgAN severity.
• Revealed potential therapeutic targeting of the α4β7-MAdCAM-1 axis.
• Demonstrated dysregulation of B cell responses in the terminal ileum contributing to IgAN.