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  • Title: [Fractionation of lymphocytes using affinity chromatography with 9 lectins].
    Author: de Dios I, Manso M, López-Borrasca A.
    Journal: Rev Esp Fisiol; 1983 Dec; 39(4):423-8. PubMed ID: 6675094.
    Abstract:
    Lymphocyte subclasses from normal peripheral blood have been fractionated by affinity chromatography with lectins. Concanavalin A (Con A), Lens culinaris lectin (LC), Pisum sativum lectin (PS), Phaseolus vulgaris lectin (PHA), Dolichos biflours lectin (DB), Glicine max lectin (SBA), Ricinus communis lectin (RCA II), Tetragonolobus purpureus lectin (TP) and Triticum vulgaris lectin (WGA), were coupled to Sepharose 6MB, and lymphocytes labelled with 125I were eluted through the chromatographic columns. The binding of lymphocytes to WGA and SBA lectins was 32% and 13% respectively. The binding to the other lectins tested were found to be between 32% and 13%. When solutions of increasing concentrations of specific sugar were added to the columns a progressive elution of bound lymphocytes was observed. These results indicate the existence of a large range of lymphocyte subclasses, with different binding capacity to lectins, which was a function of the receptor number or/and receptor affinity to each lectin. Furthermore, these two parameters were found to vary in each functional population. Even though all the lymphocytes had lectin receptors, T lymphocytes showed higher affinity for Con A, PHA and TP lectins, while B lymphocytes appeared to be more specific for LC, PS, SBA, DB, RCAII and WGA lectins.
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