1. Immune Profiling of Peripheral Blood Mononuclear Cells at Pancreas Acute Rejection Episodes in Kidney-Pancreas Transplant Recipients
- Author
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Jordi Rovira, Maria Jose Ramirez-Bajo, Elisenda Bañón-Maneus, Natalia Hierro-Garcia, Marta Lazo-Rodriguez, Gaston J. Piñeiro, Enrique Montagud-Marrahi, David Cucchiari, Ignacio Revuelta, Miriam Cuatrecasas, Josep M. Campistol, Maria Jose Ricart, Fritz Diekmann, Angeles Garcia-Criado, and Pedro Ventura-Aguiar
- Subjects
Transplantation ,Leukocytes, Mononuclear ,Humans ,Pancreas Transplantation ,Kidney ,Pancreas ,Retrospective Studies - Abstract
Profiling of circulating immune cells provides valuable insight to the pathophysiology of acute rejection in organ transplantation. Herein we characterized the peripheral blood mononuclear cells in simultaneous kidney-pancreas transplant recipients. We conducted a retrospective analysis in a biopsy-matched cohort (n = 67) and compared patients with biopsy proven acute rejection (BPAR; 41%) to those without rejection (No-AR). We observed that CD3+ T cells, both CD8+ and CD4+, as well as CD19+ B cells were increased in patients with BPAR, particularly in biopsies performed in the early post-transplant period (p < 0.05) and outperformed lipase (AUC 0.62; p = 0.12) for the diagnosis of acute rejection. We further evaluated whether this could be explained by differences in frequencies prior to transplantation. Patients presenting with early post-transplant rejection (p < 0.01), which were associated with a significant inferior rejection-free graft survival. T cell frequencies in peripheral blood correlated with pancreas acute rejection episodes, and variations prior to transplantation were associated with pancreas early acute rejection.
- Published
- 2022