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Related Experiment Videos

Different surface glycoprotein patterns on human T-, B- and leukemic-lymphocytes.

L C Andersson, C Wasastjerna, C G Gahmberg

    International Journal of Cancer
    |January 15, 1976
    PubMed
    Summary

    Human T- and B-lymphocytes exhibit distinct surface glycoprotein patterns. Chronic lymphocytic leukemia cells show altered patterns compared to normal lymphocytes, suggesting a link to leukemia-associated antigen expression.

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    Area of Science:

    • Immunology
    • Biochemistry
    • Hematology

    Background:

    • Surface glycoproteins play crucial roles in lymphocyte function and cell recognition.
    • Alterations in cell surface molecules are often associated with hematological malignancies like chronic lymphocytic leukemia (CLL).

    Purpose of the Study:

    • To characterize and compare the surface glycoprotein profiles of normal human T- and B-lymphocytes with those of leukemic cells from CLL patients.
    • To investigate potential correlations between altered surface glycoprotein patterns and the expression of leukemia-associated antigens.

    Main Methods:

    • Utilized the galactose oxidase-tritiated sodium borohydride method for labeling exposed surface glycoproteins on lymphocytes.
    • Employed polyacrylamide slab gel electrophoresis for separation of labeled glycoproteins.

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  • Visualized separated glycoproteins using autoradiography.

    • Main Results:

    • Distinct and characteristic surface glycoprotein patterns were identified for T-lymphocytes and B-lymphocytes.
    • Leukemic cells from CLL patients displayed significantly different surface glycoprotein patterns compared to normal lymphocytes.
    • The study suggests a relationship between the modified surface glycoprotein expression on leukemic cells and the presence of leukemia-associated antigens.

    Conclusions:

    • Surface glycoprotein profiling can differentiate between normal T- and B-lymphocytes.
    • Chronic lymphocytic leukemia cells exhibit unique surface glycoprotein alterations compared to their normal counterparts.
    • These alterations may be linked to the pathogenesis and diagnostic markers of CLL.