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Related Experiment Videos

PHA response and methylazoxymethanol acetate

L A Evans, E C Jenkins

    Chemico-Biological Interactions
    |July 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Methyl azoxymethanol acetate (MAMac) was found to inhibit blastogenesis, a key immune cell function. This study demonstrates MAMac

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    Area of Science:

    • Toxicology
    • Immunology
    • Cell Biology

    Background:

    • Methyl azoxymethanol (MAM), the aglycone of cycasin, is a known mutagen.
    • Methyl azoxymethanol acetate (MAMac), a stable MAM derivative, inhibits DNA synthesis and cell proliferation.

    Purpose of the Study:

    • To investigate the effects of MAMac on blastogenesis in human short-term leukocyte cultures.
    • To assess MAMac's impact on immune cell activation.

    Main Methods:

    • Human short-term leukocyte cultures were utilized.
    • Blastogenesis was assessed through cytological examination and [3H] thymidine incorporation.
    • Cultures were exposed to varying doses of MAMac (5–800 µg/ml).

    Main Results:

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  • A significant depression in blastogenesis was observed cytologically in cultures from two individuals.
  • Dose-dependent inhibition of blastogenesis was confirmed using [3H] thymidine in cultures from 11 male individuals.

    • Conclusions:

    • MAMac demonstrably inhibits blastogenesis in human leukocytes.
    • These findings suggest MAMac has immunosuppressive properties, impacting lymphocyte activation.