MAJOR AND LYMPHOCYTE POPULATIONS OF HUMAN PERIPHERAL BLOOD LYMPHOCYTES AND THEIR REFERENCE VALUES, AS ASSAYED BY MULTI-COLOUR CYTOMETRY

Abstract. Determination of lymphocyte subpopulations and their phenotypes is an important diagnostic feature, in order to elucidate some disturbances connected with immune system functioning. However, insufficient data are obtained when analyzing only major populations of peripheral lymphocytes. In order to perform clinical diagnostics, the data about minor lymphocytic populations and activated cellular pools seem to be more pertinent.

Studies of peripheral blood cell subpopulations of healthy donors performed in different Russian regions allowed to assess quantitative distribution intervals for both major and minor immune cell subpopulations in humans. The results obtained, as compared with data from literature, provide an evidence for similar reference intervals for main immune cell subpopulations in healthy donors, independent on their habitation area.

Present work has resulted into development of algorithms for cytometric studies and generation of certain panels of monoclonal antibodies enabling evaluation of all main lymphocyte subpopulations, as well as their minor subsets participating in emerging immune response. The distribution intervals have been estimated for such minor subpopulations, as B1- and B2-lymphocytes, memory B-cells, γδ- and αβT-cells, regulatory and naїve T-cells, cytotoxic and secretory NK-cell polupations.

The results of present study, while been performed with peripheral blood of healthy donors, may provide a basis of reference values when studying subpopulation profile of immune cells.

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