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Related Experiment Videos

Angulate lysosomes.

K P Dingemans, W J Mooi, M A van den Bergh Weerman

    Ultrastructural Pathology
    |September 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Macrophages can store undigested materials in lysosomes, creating angulate lysosomes. These are found in various conditions beyond Gaucher disease, indicating incomplete cellular digestion.

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    Area of Science:

    • Cell Biology
    • Pathology
    • Histology

    Background:

    • Macrophages are key immune cells involved in phagocytosis and cellular debris clearance.
    • Lysosomes are cellular organelles responsible for degrading waste materials.
    • Angulate lysosomes, characterized by their irregular shape, are typically associated with lipid accumulation.

    Purpose of the Study:

    • To investigate the occurrence and origins of angulate lysosomes in various pathological conditions.
    • To broaden the understanding of cellular mechanisms leading to lysosomal storage.

    Main Methods:

    • Literature review of existing studies on macrophages and lysosomes.
    • Analysis of internal case files for instances of angulate lysosomes.
    • Histopathological examination of affected tissues.

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    Main Results:

    • Angulate lysosomes were identified in numerous conditions not previously associated with them.
    • The stored material often originates from incompletely digested phagocytosed cells (e.g., blood cells, tumor cells, myelin, bacteria).
    • Incomplete digestion may result from overwhelming phagocytic load or intrinsic metabolic deficiencies.

    Conclusions:

    • Angulate lysosomes are not exclusive to Gaucher disease and can arise in a wider range of conditions.
    • Their presence indicates a common pathway of incomplete lysosomal digestion within macrophages.
    • Further research is needed to elucidate the origin of lysosomal contents in some observed cases.