Russian Research Institute of Hematology and Transfusiology, Russian Federal Medico-biological Agency,
Brief summary
Using multi-colour flow cytometry we have studied the changes of parameters of cell immunity during the course of red blood cell transfusions in patients with aplastic anaemia (n=54), of whom 61,1% have not received any red blood cell transfusions, 18,5% have received only leukodepleted red blood cells and 20,4% - washed, unfreezed red blood cells and erythrocyte mass. Also we have examined patients with haemophilia A (n=102), of whom 38,2% were red blood cell recipients. There have not been revealed any significant differences between examined groups in the amount of total T-cell population (CD3+) and its main immunoregulatory subsets (СD3+/CD4+ - T-helpers and CD3+/CD8+ - T-cytotoxic cells) and B-cells (CD19+). Nevertheless, we have revealed the mediate immunosuppressive effect of haemotransfusion therapy manifesting by changes of amount of minor lymphoid subsets: increase of percent of CD8+/CD3- cells and decrease of activated CD3+/DR+ and NKT (CD3+/CD16/56+ lymphocytes). The obtained data are the evidence that patients with history of multiple haemocomponent transfusions should be referred as a group with increased risk of secondary immune deficiency and infectious complications. This should be considered during prescribing of immunosupresive therapy to transfusion-dependent patients and while choosing the tactics of haemocomponent transfusions.
Key words
cell immunity, red blood cells, transfusions, haemocomponents, aplastic anaemia, haemophilia.
1. J. Gorham. Transfusion tickles T cells through cross-priming // Blood. – 2006. – Vol. 107, N 1. – R. 6-7.
2. J.Waters. Trauma surgery and transfusion options // International Trauma Care. – 2008. – Vol. 18, N 1 – P. 66-69.
3. M. Raghavan, P. Marik, Anemia, Allogenic Blood Transfusion, Immunomodulation in the Critically Ill. // Chest. – 2005. - Vol.127. – P. 295-307.
4. Y. Min, Chen Gang, Fang Ling-ling, et al. Immunologic changes to autologous transfusion after operational trauma in malignant tumor patients. Neopterin and Interleukin-2 //Journal of Zhejiang University Science. – 2005. – Vol. 6B, N 1. – P.49-52.
5. O. Mathiesen, L.Lund, U.Brodthagen, P.Gandrup Leukocyte filtration does not affect lymphocyte subpopulations and NK cell function in recipients of blood transfusion // Vox Sang. – 1998. – Vol.74, N 1. – P.15-20.
6. J. Zimring, Gregory A. Hair, Seema S. Deshpande, and John T. Horan Immunization to minor histocompatibility antigens on transfused RBCs through crosspriming into recipient MHC class I pathways // Blood. – 2005. – Vol. 105, N 10. – P. 4106-4114.
7. R. Brutkiewicz, S. Venkataraman. Natural killer (NKT) cells and their role in antitumor immunity //Clin.Rev.in Oncol./Hematol. – 2002. – Vol. 41. – P.287-298.
8. S. Yang, J. Lee. Role of NKT cells in allogenic islet graft survival // Clin. immunol. – 2007. – Vol. 124. – P. 258-266.
9. Jakóbisiak M, Lasek W, Gołab J. Natural mechanisms protecting against cancer // Immunol.Lett. – 2003. – Vol. 15, N 9. – P. 103-122.
10. M. Nikolova, J.-D. Lelievre, M. Carriere, A. Bensussan, Y. Lévy. Treg modulate CD8 subsets through pd-1/pdl1 pathway // Blood. – 2009. – Vol. 113, N 19. – P. 4556-4565.
11. M. Terabe, J. Berzofsky. NKT cells in immunomodulation of tumor immunity: a new immunoregulatory axis. // Trends in Immunol. – 2007. – Vol. 28, N 11. – P. 491-496.