Induction of regulatory T cells after prophylactic treatment with photopheresis in renal transplant recipients

Andrea Lamioni, Rita Carsetti, Antonia Legato, Attilio Landolfo, Giancarlo Isacchi, Francesco Emma, Gian Franco Bottazzo, Luca Dello Strologo

Research output: Contribution to journalArticlepeer-review


Extracorporeal photopheresis (ECP), originally used to treat cutaneous T-cell lymphoma, also has been applied to the therapy of transplant rejection. Our aim was to investigate the biologic response in two children who underwent kidney transplantation with ECP as prophylactic treatment. They received conventional immunosuppressive therapy and ECP immediately after transplantation: six applications over the course of 3 weeks. During a 12-month follow-up, the clinical course was favorable in both patients; renal histology was normal 6 months after transplantation. When compared with four transplanted controls, the ECP-treated patients showed lower tumor necrosis factor-α serum levels in the short-term and a marked increase of Foxp3-positive T-regulatory cells. T-regulatory cells were still higher than in the controls 1 year after transplantation. These preliminary results suggest that the addition of ECP to standard immunosuppressive therapy induces a tolerogenic shift in the immune system of kidney transplanted patients and may pave the way to preventing chronic rejection.

Original languageEnglish
Pages (from-to)1393-1396
Number of pages4
Issue number10
Publication statusPublished - May 2007


  • Children
  • Kidney transplantation
  • Photopheresis
  • Regulatory T cells

ASJC Scopus subject areas

  • Transplantation
  • Immunology

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