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Related Experiment Videos

The malignant cell and its membranes.

L Warren

    The American Journal of Pathology
    |October 1, 1974
    PubMed
    Summary
    This summary is machine-generated.

    Altered membrane proteins and glycoproteins are key to cancer development. Changes in cell surface carbohydrates are linked to malignant expression in cancer cells.

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    Area of Science:

    • Biochemistry
    • Cell Biology
    • Oncology

    Background:

    • Cellular membranes play a crucial role in cell function and communication.
    • Alterations in cell surface molecules are often observed in cancerous cells.
    • Understanding these changes is vital for cancer research.

    Purpose of the Study:

    • To review the hypothesis linking altered membrane proteins and glycoproteins to malignant expression.
    • To present examples of membrane protein alterations in malignancy.
    • To summarize data on changes in glycoprotein carbohydrates in malignant cells.

    Main Methods:

    • Literature review of studies on membrane proteins and glycoproteins in cancer.
    • Presentation of examples of altered membrane proteins in malignant conditions.

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  • Summary of data comparing carbohydrate components of glycoproteins in normal versus malignant cells.

    • Main Results:

    • Evidence suggests that altered membrane proteins and glycoproteins are critical mediators of malignant expression.
    • Specific examples of membrane protein alterations in various malignancies are discussed.
    • Significant changes in the carbohydrate structures of glycoproteins on both surface and internal membranes of cultured malignant cells compared to normal cells were observed.

    Conclusions:

    • Altered membrane proteins and glycoproteins are strongly implicated as mediators of malignant cell behavior.
    • Changes in the carbohydrate composition of glycoproteins represent a key feature of malignant cells.
    • Further research into these molecular alterations may offer new avenues for cancer diagnosis and therapy.