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Updated: Jun 21, 2026
08:41
Functional Characterization of Regulatory Macrophages That Inhibit Graft-reactive Immunity
Published on: June 7, 2017
Monocytes/macrophages in renal allograft rejection
1Department of Pathology and Laboratory Medicine, St. Paul's Hospital and the University of British Columbia, Vancouver, BC, Canada. amagil@providencehealth.bc.ca
Transplantation Reviews (Orlando, Fla.)
|July 31, 2009
Summary
Monocytes/macrophages (MO) are key players in renal allograft rejection. High MO infiltration, especially in glomeruli, indicates severe rejection and predicts poor kidney transplant outcomes.
Area of Science:
- Nephrology
- Immunology
- Transplantation
Background:
- Monocytes/macrophages (MO) play a critical role in renal allograft rejection.
- These immune cells infiltrate glomerular, vascular, and tubulointerstitial areas during rejection.
Purpose of the Study:
- To elucidate the specific role and prognostic significance of monocytes/macrophages in renal allograft rejection.
- To investigate the association between MO infiltration and antibody-mediated rejection markers.
Main Methods:
- Analysis of immune cell infiltration in renal allografts during rejection episodes.
- Correlation of monocyte/macrophage presence with C4d deposition and clinical outcomes.
Main Results:
- Peritubular capillary C4d deposition, a marker of antibody-mediated rejection, correlates with significant MO infiltration.
- Elevated MO levels in rejecting allografts are linked to severe rejection.
- Glomerular MO infiltration is a specific indicator of poor renal allograft outcomes.
Conclusions:
- Monocyte/macrophage infiltration is a significant factor in renal allograft rejection severity and prognosis.
- Targeting MO may offer therapeutic strategies for improving kidney transplant success.
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