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Intercellular junctions in the rhesus monkey pars distalis.

D C Herbert

    The Anatomical Record
    |September 1, 1979
    PubMed
    Summary
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    This study identified three intercellular junction types in rhesus monkey pituitary glands. Desmosomes were most common between granular cells, while zonula adherens-type junctions linked folliculo-stellate cells.

    Area of Science:

    • Endocrinology
    • Cell Biology
    • Histology

    Background:

    • The pituitary gland's cellular organization is crucial for hormone regulation.
    • Understanding intercellular junctions provides insights into pituitary cell communication and function.

    Purpose of the Study:

    • To investigate the types and distribution of intercellular junctions in the rhesus monkey pituitary gland.
    • To characterize the specific cell types associated with different junctional structures.

    Main Methods:

    • Transmission electron microscopy was used to examine four rhesus monkey pituitary glands.
    • Ultrastructural analysis focused on identifying and classifying intercellular junctions between various pituitary cell types.

    Main Results:

    Related Experiment Videos

    • Three types of intercellular junctions were identified: desmosomes, hemidesmosomes, and zonula adherens-type junctions.
    • Desmosomes were predominantly observed between granular cells.
    • Zonula adherens-type junctions were mainly found between folliculo-stellate cells, with some also observed between granular and folliculo-stellate cells.

    Conclusions:

    • The rhesus monkey pituitary gland exhibits diverse intercellular junctions facilitating cell-cell adhesion and communication.
    • Specific junction types are preferentially associated with distinct pituitary cell populations, suggesting functional specialization.