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Cell surface modifications in neuronal maturation

S Denis-Donini, M Estenoz, G Augusti-Tocco

    Cell Differentiation
    |August 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Cell surface carbohydrate changes during neuronal maturation were studied using lectin binding. Neuroblastoma and dorsal root ganglia (DRG) neurons showed distinct surface changes correlating with differentiation.

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    Area of Science:

    • Neuroscience
    • Cell Biology
    • Developmental Biology

    Background:

    • Neuronal maturation involves significant cell surface alterations.
    • Carbohydrate composition is a key aspect of cell surface changes.
    • Lectins are valuable tools for probing cell surface carbohydrates.

    Purpose of the Study:

    • To investigate changes in cell surface carbohydrate composition during neuronal maturation.
    • To compare these changes in neuroblastoma cell lines and primary dorsal root ganglia (DRG) cultures.
    • To explore the correlation between surface changes and neuronal differentiation.

    Main Methods:

    • Utilized fluorescein-conjugated lectins for cell surface analysis.
    • Examined neuroblastoma cell cultures.
    • Studied primary cultures of embryonic dorsal root ganglia (DRG) at different developmental stages.

    Main Results:

    • Distinct lectin binding patterns observed between neuroblastoma cell bodies and fibers using Concanavalin A (Con A) and WGA.
    • Lectin binding was initially absent in early-stage (5-6 days) embryonic DRG cultures.
    • Detectable lectin binding emerged by day 7 and increased progressively, with Con A patterns resembling neuroblastoma cells at day 7.

    Conclusions:

    • Neuronal maturation is associated with dynamic changes in cell surface carbohydrate expression.
    • These changes are observable in both cell lines and primary neuronal cultures.
    • The study suggests a potential link between cell surface carbohydrate modifications and neuronal adhesion and differentiation.