AF6 orchestrates macrophage polarization via JAK2-STAT3 signaling and supports intestinal regeneration by stimulating stem cell proliferation - Summary - MDSpire

AF6 orchestrates macrophage polarization via JAK2-STAT3 signaling and supports intestinal regeneration by stimulating stem cell proliferation

  • By

  • Tao Jian

  • Xiaoxia Dong

  • Jingwen Kong

  • Xinyu Wang

  • Meiyan Qi

  • Lixing Zhan

  • Lilei Zhuang

  • June 19, 2026

  • 0 min

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Objective:

To investigate the role of the scaffold protein AF6 in macrophage polarization and its impact on colitis pathogenesis.

Approach:
    Key Findings:
    • AF6 promotes pro-inflammatory macrophage polarization and exacerbates colitis.
    • Deletion of AF6 in macrophages impairs JAK-STAT3 signaling and shifts polarization away from pro-inflammatory M1.
    • AF6-deficient macrophages enhance epithelial regeneration through increased IL-10 production and activation of Wnt/β-catenin signaling.
    Interpretation:

    The study identifies AF6 as a critical regulator of macrophage polarization via the JAK2-STAT3 pathway.

    Limitations:
    • The study primarily utilizes a mouse model, which may not fully replicate human IBD.
    • Further research is needed to explore the clinical relevance of targeting the AF6-JAK2-STAT3 axis.
    Conclusion:

    AF6 serves as a key immune regulator in macrophages, influencing inflammation and tissue repair in colitis.

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