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Related Experiment Videos

Golgi architecture and inheritance.

James Shorter, Graham Warren

    Annual Review of Cell and Developmental Biology
    |July 27, 2002
    PubMed
    Summary
    This summary is machine-generated.

    Golgi inheritance during cell division involves fragmentation and reassembly. A dynamic structural matrix guides this process, ensuring accurate inheritance of Golgi components.

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    Area of Science:

    • Cell Biology
    • Molecular Biology
    • Biochemistry

    Background:

    • Golgi inheritance occurs through sequential biogenesis and partitioning phases.
    • Golgi partitioning during mitosis in mammalian cells involves fragmentation into tubulovesicular clusters.
    • This process is regulated by mitotic kinases and the inhibition of membrane fusion events.

    Purpose of the Study:

    • To integrate recent findings on mitotic Golgi fragmentation and reassembly.
    • To present a coherent molecular picture of Golgi inheritance.
    • To highlight the role of a dynamic Golgi structural matrix in inheritance.

    Main Methods:

    • Ultrastructural and fluorescence analyses of Golgi partitioning during mitosis.
    • Utilizing semi-intact cell and cell-free assays for molecular dissection.

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  • Review and integration of recent research findings.

    • Main Results:

    • Accurate Golgi partitioning occurs early in mitosis via equilibration of components.
    • Disseminated Golgi components coalesce to regenerate stacks during telophase.
    • A dynamic Golgi structural matrix interfaces with key molecular players (cargo receptors, enzymes, Rab-GTPases, SNAREs).

    Conclusions:

    • The Golgi structural matrix is crucial for coupling transport to architecture.
    • This framework may guide Golgi biogenesis and encode information for accurate inheritance.
    • Understanding this matrix helps resolve discrepancies in Golgi inheritance research.