Related Experiment Video
Updated: Jan 1, 2026

Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation
Published on: September 6, 2017
Donor selection in a pediatric stem cell transplantation cohort using PIRCHE and HLA-DPB1 typing
Wiebke Stenger1, Annette Künkele1,2,3,4, Matthias Niemann5
1Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Insights
Optimizing donor selection for pediatric hematopoietic stem cell transplantation (HSCT) using HLA-DPB1 and PIRCHE matching is crucial. High PIRCHE scores significantly increase graft-versus-host disease (GvHD) risk in children undergoing HSCT.
Area of Science:
- Immunogenetics
- Pediatric Hematology
- Transplantation Science
Background:
- Hematopoietic stem cell transplantation (HSCT) strategies are often adult-focused, yet pediatric HSCT differs in disease spectrum and complication risks like graft-versus-host disease (GvHD).
- Optimizing donor selection is critical for improving outcomes in pediatric HSCT.
- Understanding genetic factors influencing HSCT success in children is essential.
Purpose of the Study:
- To evaluate HLA-DPB1 and Predicted Indirectly ReCognizable HLA-Epitope (PIRCHE) matching for donor selection in pediatric HSCT.
- To minimize GvHD and other complications in children undergoing HSCT.
- To assess the impact of HLA-DPB1 and PIRCHE matching on HSCT outcomes in a pediatric cohort.
Main Methods:
- Analysis of HLA-DPB1 and PIRCHE matching in a pediatric cohort undergoing HSCT between 2014 and 2016 in Berlin.
- Evaluation of the association between HLA-DPB1 mismatches and GvHD or relapse incidence.
- Assessment of PIRCHE-I scores in relation to GvHD risk, considering HLA-DPB1 matching.
Main Results:
- Nonpermissive HLA-DPB1 mismatches did not increase GvHD but were linked to higher relapse rates.
- High PIRCHE-I scores significantly correlated with increased GvHD risk in pediatric HSCT recipients from matched unrelated donors.
- The association between high PIRCHE scores and GvHD risk remained significant even after incorporating HLA-DPB1 matching.
Conclusions:
- Implementing PIRCHE typing in donor selection for pediatric HSCT may improve outcomes.
- PIRCHE-based donor selection could particularly benefit pediatric patients with nonmalignant diseases.
- Further validation of PIRCHE-based donor selection in larger, multi-center pediatric cohorts is recommended.
Background:
New strategies to optimize donor selection for hematopoietic stem cell transplantation (HSCT) have mainly been evaluated in adults, but the disease spectrum requiring HSCT differs significantly in children and has consequences for the risk of complications, such as graft-versus-host disease (GvHD).
Procedures:
Here we evaluated whether HLA-DPB1 and Predicted Indirectly ReCognizable HLA-Epitope (PIRCHE) matching can improve donor selection and minimize risks specific for a pediatric cohort undergoing HSCT in Berlin between 2014 and 2016.
Results:
The percentage of HLA-DPB1-mismatched HSCT in the pediatric cohort was in line with the general distribution among matched unrelated donor HSCT. Nonpermissive HLA-DPB1 mismatches were not associated with a higher incidence of GvHD, but the incidence of relapse was higher in patients undergoing HSCT from HLA-DPB1-matched transplantations. High PIRCHE-I scores were associated with a significantly higher risk for developing GvHD in patients undergoing HSCT from nine of ten matched unrelated donors. This finding persisted after including HLA-DPB1 into the PIRCHE analysis.
Conclusions:
Implementing PIRCHE typing in the donor selection process for HSCT in children could particularly benefit children with nonmalignant diseases and support further validation of PIRCHE-based donor selection in a larger number of children treated at different sites.
More Related Videos
11:59Detection of Residual Donor Erythroid Progenitor Cells after Hematopoietic Stem Cell Transplantation for Patients with Hemoglobinopathies
Published on: September 6, 2017
10:11Using Quantitative Real-time PCR to Determine Donor Cell Engraftment in a Competitive Murine Bone Marrow Transplantation Model
Published on: March 7, 2013
Related Concept Videos
Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
Tissue Transplantation
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
Kidney Transplant I: Introduction