07Jul 2023
The bone marrow side of axial spondyloarthritis

The bone marrow side of axial spondyloarthritis

Spondyloarthritis (SpA) is characterized by the infiltration of immune cells into the bone marrow and entheses. Recent evidence highlights the presence of bone marrow inflammation as a key feature of SpA. Bone marrow involvement plays a critical role in the pathogenesis of SpA in both the spine and peripheral joints. Mechanisms such as mechano-inflammation and intestinal inflammation contribute to bone marrow inflammation in SpA. Various cell types (mesenchymal stem cells, innate lymphoid cells, γδ T cells) and mediators (Toll-like receptors, TNF, IL-17A, IL-22, IL-23, GM-CSF, TGFβ) are involved in these processes. Recognizing the bone marrow as the primary site of inflammation in SpA can reshape our understanding of disease development and guide therapeutic strategies.

  • #rheumatology

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