Role of RFRP-3 in the Regulation of Kiss-1 Gene Expression in the AVPV Hypothalamic Cell Model mHypoA-50

Haruhiko Kanasaki, Tuvshintugs Tumurbaatar, Aki Oride, Zolzaya Tumurgan, Hiroe Okada, Tomomi Hara, Kazuyoshi Tsutsui, Satoru Kyo

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Kisspeptin, encoded by the Kiss-1 gene, plays a crucial role in reproductive function by governing the hypothalamic–pituitary–gonadal axis. The recently established Kiss-1-expressing cell model mHypoA-50 displays characteristics of neuronal cells of the anteroventral periventricular (AVPV) region of the mouse hypothalamus. Because Kiss-1 gene expression in these cells is upregulated by estradiol (E2), mHypoA-50 cells are regarded as a valuable model for the study of Kiss-1-expressing neurons in the AVPV region. These cells also express RFamide-related peptide-3 (RFRP-3), a mammalian homolog of gonadotropin inhibitory hormone. The RFRP-3 expression in mHypoA-50 cells was increased by melatonin stimulation. In addition, E2 stimulation increased RFRP-3 expression in these cells. Treatment of the mHypoA-50 cells with exogenous RFRP-3 resulted in the increase of Kiss-1 messenger RNA expression within the cells; however, RFRP-3 did not modify gonadotropin-releasing hormone or kisspeptin-induced Kiss-1 gene expression in these cells. In addition, we found that RFRP-3 stimulation increased the expression of corticotropin-releasing hormone, which may be involved in E2-induced positive feedback in mHypoA-50 cells. Our observations suggest that RFRP-3 might be involved in positive feedback regulation by directly or indirectly increasing Kiss-1 gene expression.

    Original languageEnglish
    JournalReproductive Sciences
    DOIs
    Publication statusAccepted/In press - 2018 Jan 1

    Fingerprint

    Gene Expression
    Kisspeptins
    RFamide peptide
    Corticotropin-Releasing Hormone
    Melatonin
    Gonadotropins
    Gonadotropin-Releasing Hormone
    Hypothalamus
    Estradiol
    Hormones
    Neurons
    Messenger RNA
    Genes

    Keywords

    • estradiol
    • GnIH
    • hypothalamus
    • kisspeptin
    • RFRP-3

    ASJC Scopus subject areas

    • Obstetrics and Gynaecology

    Cite this

    Kanasaki, H., Tumurbaatar, T., Oride, A., Tumurgan, Z., Okada, H., Hara, T., ... Kyo, S. (Accepted/In press). Role of RFRP-3 in the Regulation of Kiss-1 Gene Expression in the AVPV Hypothalamic Cell Model mHypoA-50. Reproductive Sciences. https://doi.org/10.1177/1933719118813456

    Role of RFRP-3 in the Regulation of Kiss-1 Gene Expression in the AVPV Hypothalamic Cell Model mHypoA-50. / Kanasaki, Haruhiko; Tumurbaatar, Tuvshintugs; Oride, Aki; Tumurgan, Zolzaya; Okada, Hiroe; Hara, Tomomi; Tsutsui, Kazuyoshi; Kyo, Satoru.

    In: Reproductive Sciences, 01.01.2018.

    Research output: Contribution to journalArticle

    Kanasaki, Haruhiko ; Tumurbaatar, Tuvshintugs ; Oride, Aki ; Tumurgan, Zolzaya ; Okada, Hiroe ; Hara, Tomomi ; Tsutsui, Kazuyoshi ; Kyo, Satoru. / Role of RFRP-3 in the Regulation of Kiss-1 Gene Expression in the AVPV Hypothalamic Cell Model mHypoA-50. In: Reproductive Sciences. 2018.
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