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Updated: Nov 18, 2025

Mouse Kidney Transplantation: Models of Allograft Rejection
Published on: October 11, 2014
Acute rejection and growth outcomes in paediatric kidney allograft recipients treated with a corticosteroid
James McCaffrey1, Mohan Shenoy2
1Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Addenbrooke's Hospital, Cambridge, UK.
Insights
Corticosteroid minimisation protocols (CMP) in pediatric kidney transplant recipients improve height, reduce obesity and hypertension without increasing acute rejection risk. This approach offers a safer long-term strategy for managing side effects.
Area of Science:
- Pediatric Nephrology
- Transplantation Immunology
- Immunosuppression Therapy
Background:
- Long-term corticosteroid use in pediatric kidney transplant recipients is associated with significant side effects.
- Corticosteroid minimisation protocols (CMP) aim to reduce these adverse effects.
- Evaluating the safety and efficacy of CMP in children is crucial for improving transplant outcomes.
Purpose of the Study:
- To assess the incidence of acute rejection in children undergoing kidney transplantation with CMP.
- To evaluate growth and long-term outcomes in pediatric kidney transplant recipients on CMP.
- To compare outcomes of CMP with historical control groups.
Main Methods:
- Retrospective analysis of pediatric kidney transplant recipients treated with CMP between 2009 and 2019.
- Comparison of acute rejection rates and graft function with 5 control groups from recent studies.
- Assessment of growth parameters, obesity, and hypertension at extended follow-up.
Main Results:
- No significant difference in acute rejection rates between CMP-treated recipients and controls.
- Graft function was lower in recipients experiencing acute rejection.
- Children on CMP demonstrated improved height attainment, reduced obesity, and lower rates of hypertension compared to controls.
Conclusions:
- Corticosteroid minimisation protocols (CMP) in pediatric kidney transplantation are safe and effective.
- CMP is associated with better growth, reduced obesity, and decreased hypertension rates.
- CMP offers a viable strategy to mitigate long-term side effects of immunosuppression in pediatric kidney transplant recipients.
Background:
Corticosteroid minimisation immunosuppressive protocols (CMP) for children are an approach to safely reduce unwanted medication side effects associated with long-term exposure following kidney transplantation. Here, we provide data regarding the incidence of acute rejection and growth over an extended follow-up in children receiving the CMP used in our centre.
Methods:
We retrospectively analysed all children treated with a CMP who received a kidney transplant and had follow-up care in our centre between 2009 and 2019. Data were compared to 5 control groups from recent studies.
Results:
Ninety-nine kidney allograft recipients were included in the study (mean follow-up 4.4 years). There was no difference in the cumulative frequency of acute rejection in CMP-treated graft recipients compared to controls. Graft function at latest follow-up was significantly lower in graft recipients experiencing acute rejection compared to those without acute rejection (53.7 mL/min/1.73 m2 vs. 66.8 mL/min/1.73 m2, p = 0.021). Children experiencing >1 acute rejection episode had a greatly elevated risk of graft failure (p = 0.0009, OR 68.25). At latest follow-up, 64/90 (71.1%) graft recipients had a normal height, and younger graft recipients demonstrated greater catch up growth than older children. CMP-treated graft recipients showed a reduced rate of height deficit (28.9% vs. 55.1%, p = 0.0025), less obesity (12.2% vs. 23.9%, p = 0.031), and reduced rates of hypertension (35.4% vs. 68.2%, p< 0.0001).
Conclusions:
Children treated with a CMP show greater height attainment, lower frequency of obesity, and reduced rates of hypertension, without an increased risk of acute rejection. Graphical abstract.
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