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Related Experiment Videos

[Gap junctions--major structures promoting intercellular communication].

M G Shubich, B G Ermoshenko, Iu M Perov

    Morfologiia (Saint Petersburg, Russia)
    |August 6, 2005
    PubMed
    Summary

    Gap junctions, formed by connexins, facilitate cell communication and cooperation. Their dynamic assembly and destruction are regulated by genetic activity and cellular factors.

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    Area of Science:

    • Cell Biology
    • Molecular Biology
    • Physiology

    Context:

    • Gap junctions mediate intercellular communication via connexin channels.
    • These channels are dynamic structures with short half-lives.
    • Their function is influenced by connexin properties and cellular factors.

    Purpose:

    • To review the structure and function of gap junctions.
    • To discuss the regulation of gap junction assembly and degradation.
    • To highlight the role of gap junctions in the nervous system, heart, and epidermis.

    Summary:

    • Gap junctions are crucial for cell-to-cell communication, formed by connexin proteins creating intercellular channels.
    • Channel permeability and conductivity depend on connexin characteristics, phosphorylation, and cellular environment.

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  • Gap junctions are dynamic, with regulated assembly and destruction influenced by genome activity and intracellular/extracellular signals.

    • Impact:

    • Understanding gap junctions aids research in cellular cooperation and tissue function.
    • Insights into gap junction regulation are vital for studying diseases affecting the nervous system, heart, and skin.
    • This review provides a comprehensive overview of gap junction dynamics and their physiological relevance.