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May 16, 2026Journal of Thrombosis and HaemostasisOpen Access

CX3CR1+ synovial macrophages accumulate in the joint during experimental hemophilic arthropathy but are not required for acute synovitis

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Authors

ALAJ LawrenceTrinity College DublinTMTatenda MurangiTrinity College DublinACAnne ChevalierTrinity College Dublin

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Implication

Randomized trial investigates the role of macrophages in hemophilic arthropathy, suggesting limited impact on acute synovitis.

Key Points

  • This study investigates the role of CX3CR1+ synovial macrophages in the context of hemophilic arthropathy.
  • Utilized knockout mice and the CX3CR1 antagonist AZD8797 for pharmacological inhibition.
  • Measured joint swelling after injury and performed histological assessments at Day 28 post-injury.
  • Macrophage recruitment was observed in experimental hemophilic arthropathy.
  • CX3CR1 antagonist treatment did not significantly alter hemophilic arthropathy development.
  • The CX3CL1-CX3CR1 axis was found to be dispensable for acute synovitis in this model.

Cite This Study

Lawrence et al. (2026) studied this question.

synapsesocial.com/papers/6a080969a487c87a6a40b5f7https://doi.org/10.1016/j.jtha.2026.04.035
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Heterogeneity of active mast cells, endothelial cells, and fibroblasts in hemophilic arthritis defined by synovial single-cell sequencing2025 · 2 citations
  2. 2Joint injury induces a robust proinflammatory cytokine response in hemophilia A mice: Implications for immune-mediated arthropathy2025
  3. 3Loss of synovial tissue macrophage homeostasis precedes rheumatoid arthritis clinical onset2024 · 84 citations
  4. 4Ablation of the Ccr2 gene exacerbates polyarthritis in interleukin-1 receptor antagonist-deficient mice2011
  5. 5Aberrant methylation and expression of TNXB promotes chondrocyte apoptosis and extracullar matrix degradation in hemophilic arthropathy via AKT signaling2024