Distribution and localization of pituitary adenylate cyclase-activating polypeptide-specific receptor (PAC1R) in the rostral migratory stream of the infant mouse brain

Ryosuke Matsuno, Hirokazu Ohtaki, Tomoya Nakamachi, Jun Watanabe, Sachiko Yofu, Daisuke Hayashi, Takaaki Takeda, Naoko Nonaka, Mayumi Seki, Masahisa Nakamura, Kazuo Itabashi, Seiji Shioda*

*この研究の対応する著者

    研究成果: Article査読

    13 被引用数 (Scopus)

    抄録

    Pituitary adenylate cyclase-activating polypeptide (PACAP) is known to participate in the regulation of neuronal proliferation and differentiation. While these processes are considered to be mediated via PACAP's actions on the PACAP-specific receptor, PAC1R, the precise distribution of PAC1R during neurodevelopment has not yet to be elucidated in detail. The purpose of this study is to examine the distribution of PAC1R in the neurogenic region of the rostral migratory stream (RMS) from the apical subventricular zone (SVZa) to the olfactory bulb (OB) in infant mice using immunostaining. Co-immunostaining for PAC1R in a variety types of cell were carried out using different markers. These included the neural stem cell markers, nestin and glial fibrillary acidic protein (GFAP), a marker for migrating neuroblasts (doublecortin, DCX), a marker for immature neurons βIII-tubulin, (Tuj1), and a marker for mature neurons, neuronal nuclei (NeuN). PAC1R-like immunoreactivity (LI) was observed in the RMS. However, the intensity of PAC1R- LI was different depending on the regions which were investigated. PAC1R-LI was strong in nestin- and GFAP-positive cells in the SVZa and was also observed in NeuN-positive cells in the OB. However, the intensities of PAC1R-LI in DCX- and Tuj1-positive cells were weaker than the other markers. These results suggest that PACAP may participate in the neurodevelopment with the stage-specific expression of PAC1R and that PACAP plays important roles in neurons as well as in glial cells.

    本文言語English
    ページ(範囲)80-87
    ページ数8
    ジャーナルRegulatory Peptides
    145
    1-3
    DOI
    出版ステータスPublished - 2008 1 10

    ASJC Scopus subject areas

    • 生化学
    • 内分泌学
    • 生理学
    • 神経科学(全般)

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