Perforin expression in peripheral blood lymphocytes in rejecting and tolerant kidney transplant recipients

Transplantation
D RukavinaE R Podack

Abstract

Perforin (P) is a cytolytic molecule expressed in the granules of cytolytic T cells and natural killer cells. Although cytotoxic cells have been implicated in graft rejection, no prospective clinical study has been published that examines the dynamics of perforin expressing cells in peripheral blood lymphocytes of transplanted patients. The cytofluorimetric assay developed in our laboratory previously for the simultaneous detection of intracellular perforin together with cell surface molecules was used for posttransplantation monitoring of patients, for the assessment of the efficiency of immunosuppressive treatment, and for the prediction of acute kidney transplant rejection and the stability of tolerance to long lived kidney transplants. Immunosuppression for the purpose of allotransplantation causes a decline in the number of perforin-expressing cells in peripheral blood. In contrast, in patients with clinical signs of acute rejection, the total number of perforin-expressing lymphocytes was increased in comparison with nonrejecting patients. Analyzing perforin-expressing subsets, rejection crises were accompanied by a relative decrease of perforin expression in the CD4+ subpopulation while increasing in the CD8+ subset. In t...Continue Reading

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Citations

Aug 17, 2002·Current Opinion in Immunology·Sita Gourishankar, Philip F Halloran
Apr 13, 2005·Nephron. Clinical Practice·Gyu-Tae ShinHeungsoo Kim
Jan 1, 2003·Transplant Immunology·Ahmed S ShokerRezvan Choudry
Apr 7, 2007·Journal of Dermatological Science·Larisa Prpić MassariDaniel Rukavina
Aug 26, 2004·The British Journal of Dermatology·L Prpić MassariD Rukavina
Apr 1, 2004·International Journal of Cancer. Journal International Du Cancer·Daniela MontagnaRita Maccario
Aug 22, 2006·Transplant International : Official Journal of the European Society for Organ Transplantation·Maria YannarakiChristophe Ferrand
Apr 15, 1997·Transplantation·K R AhmedK K Gaal

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