Neurosteroid biosynthesis and action in the Purkinje cell

    Research output: Contribution to journalReview article

    3 Citations (Scopus)

    Abstract

    It is now clearly established that steroids can be synthesized de novo by the vertebrate brain. Such steroids are called neurosteroids. To understand neurosteroid action in the brain, data on the regio- and temporal-specifi c synthesis of neurosteroids are needed. In the middle 1990s, the Purkinje cell, an important cerebellar neuron, was identifi ed as a major site for neurosteroid formation in vertebrates. This discovery has allowed deeper insights into neuronal neurosteroidogenesis and biological actions of neurosteroids have become clear by the studies using the Purkinje cell as an excellent cellular model, which is known to play an important role in memory and learning processes. From the past 10 years of research on mammals, we now know that the Purkinje cell actively synthesizes progesterone and estradiol de novo from cholesterol during neonatal life, when cerebellar neuronal circuit formation occurs. Both progesterone and estradiol promote dendritic growth, spinogenesis, and synaptogenesis via each cognate nuclear receptor in the developing Purkinje cell. Such neurosteroid actions that may be mediated by neurotrophic factors contribute to the formation of cerebellar neuronal circuit during neonatal life. Allopregnanolone, a progesterone metabolite, is also synthesized in the cerebellum and acts on Purkinje cell survival in the neonate. The aim of this review is to summarize the current knowledge regarding the biosynthesis and biological actions of neurosteroids in the Purkinje cell during development.

    Original languageEnglish
    Pages (from-to)1-12
    Number of pages12
    JournalJournal of Experimental Neuroscience
    Volume2009
    Issue number2
    Publication statusPublished - 2009

    Fingerprint

    Purkinje Cells
    Neurotransmitter Agents
    Progesterone
    Vertebrates
    Estradiol
    Steroids
    Pregnanolone
    Nerve Growth Factors
    Brain
    Cytoplasmic and Nuclear Receptors
    Cerebellum
    Mammals
    Cell Survival
    Cholesterol
    Learning
    Neurons
    Growth
    Research

    Keywords

    • Estradiol
    • Neuronal growth
    • Neurosteroids
    • Progesterone
    • Purkinje cell
    • Synaptogenesis

    ASJC Scopus subject areas

    • Neuroscience(all)

    Cite this

    Neurosteroid biosynthesis and action in the Purkinje cell. / Tsutsui, Kazuyoshi.

    In: Journal of Experimental Neuroscience, Vol. 2009, No. 2, 2009, p. 1-12.

    Research output: Contribution to journalReview article

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