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Decrease in phospholipid methylation during differentiation of cultured mouse myeloid leukemia cells

Y Honma, T Kasukabe, M Hozumi

    Biochimica Et Biophysica Acta
    |May 22, 1981
    PubMed
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    Inducing mouse myeloid leukemia cells (M1) to differentiate into macrophages and granulocytes decreased phospholipid methylation. This change in cellular phospholipid methylation may stem from reduced methyltransferase activity.

    Area of Science:

    • Cell biology
    • Biochemistry

    Background:

    • Mouse myeloid leukemia cells (M1) are a model for studying cell differentiation.
    • Cell differentiation involves complex biochemical changes.

    Purpose of the Study:

    • To investigate the impact of inducers on phospholipid metabolism during M1 cell differentiation.
    • To explore changes in methyl group incorporation during M1 cell differentiation.

    Main Methods:

    • Culturing M1 cells with specific inducers.
    • Measuring the incorporation of methyl groups and choline into cellular phospholipids.

    Main Results:

    • Induction of M1 cell differentiation led to decreased methyl group incorporation into phosphatidylethanolamine.
    • A slight increase in choline incorporation into phosphatidylcholine was observed.

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  • Cellular phospholipid methylation decreased during differentiation.

    • Conclusions:

    • Differentiation of M1 cells alters phospholipid metabolism.
    • Reduced methyltransferase activity may contribute to the observed decrease in phospholipid methylation.