Effects of Recombinant Human Erythropoietin Pretreatment on Anti-HLA Antibody Titer: A Preclinical Experience in Rats

Authors

  • Akbar Vahdati Biology Department, Faculty of Sciences, Isfahan University, Isfahan
  • Edna Abkar Immunogenetics Lab., Ali Asghar hospital, Isfahan, Iran
  • Minoo Adib Immunology Department, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan,
  • Shirin Kashfi Biology Department, Faculty of Sciences, Isfahan University, Isfahan
  • Taji Afrooz Biology Department, Faculty of Sciences, Isfahan University, Isfahan
Abstract:

Background: Erythropoietin (EPO) was first known as a factor for red blood cell proliferation and differentiation. New studies show the effects of EPO on immune system. Objective: In this study, the effects of pretreatment with recombinant human erythropoietin (rHuEPO) on the anti-human leukocyte antibody (anti-HLA) titer were determined. Methods: Three groups of rats were sensitized with human lymphocytes. Two of the groups were given 20 or 100 IU/Kg rHuEPO after two sensitizations with human lymphocytes. Control group did not receive rHuEPO. Microlymphocytotoxicity method was used to detect anti-HLA antibodies. Results: Treatment with rHuEPO caused a significant decline in anti-HLA antibody titer compared to control group. Also, pretreatment with rHuEPO suppressed antibody response after repeated antigenic stimulation. Conclusion: Such results could be due to the effects of rHuEPO on the number or the activity of the B and the T cells. Moreover, the dose of rHuEPO and the length of treatment might affect anti-HLA antibody titer.

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Journal title

volume 2  issue 4

pages  208- 212

publication date 2005-12-01

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