Pathogenetic significance of CD3+CD56+ T-lymphocytes in hemorrhagic fever with renal syndrome

Aim to evaluate the pathogenetic role of T-lymphocytes carrying the natural killer marker CD56 in hemorrhagic fever with renal syndrome (HFRS). Material and methods. The study group included 65 patients with HFRS receiving the inpatient treatment in the Clinics of SamSMU, and 15 healthy people were chosen for the control group. The following examinations were scheduled for all patients in the different stages of the disease: a clinical blood test, flow cytometry with a given set of monoclonal antibodies, enzyme-linked immunosorbent assay of blood serum to determine the cytokine profile. For statistical analysis we used the SPSS v.23 software. Results. The percentage of CD3+ CD56+ NKT blood content in comparison with those for cells of innate immunity (neutrophil granulocytes, monocytes, natural killers) and lymphocytes of adaptive immune response, as well as the level of cytokines in the blood serum showed that in polyuric and convalescent periods, the number of these cells significantly increases and remains closely embedded in correlations with other components of the immune system. Conclusion. A new hypothesis has been proposed to interpret the role of NKT in the development of the immune response in HFRS.