Activation of NOTCH1 or NOTCH3 signaling skews human airway basal cell differentiation toward a secretory pathway

Kazunori Gomi, Vanessa Arbelaez, Ronald G. Crystal, Matthew S. Walters

    研究成果: Article査読

    39 被引用数 (Scopus)

    抄録

    Airway basal cells (BC) function as stem/progenitor cells capable of differentiating into the luminal ciliated and secretory cells to replenish the airway epithelium during physiological turnover and repair. The objective of this study was to define the role of Notch signaling in regulating human airway BC differentiation into a pseudostratified mucociliated epithelium. Notch inhibition with γ-secretase inhibitors demonstrated Notch activation is essential for BC differentiation into secretory and ciliated cells, but more so for the secretory lineage. Sustained cell autonomous ligand independent Notch activation via lentivirus expression of the intracellular domain of each Notch receptor (NICD1-4) demonstrated that the NOTCH2 and 4 pathways have little effect on BC differentiation into secretory and ciliated cells, while activation of the NOTCH1 or 3 pathways has a major influence, with persistent expression of NICD1 or 3 resulting in a skewing toward secretory cell differentiation with a parallel decrease in ciliated cell differentiation. These observations provide insights into the control of the balance of BC differentiation into the secretory vs ciliated cell lineage, a balance that is critical for maintaining the normal function of the airway epithelium in barrier defense against the inhaled environment.

    本文言語English
    論文番号e0116507
    ジャーナルPloS one
    10
    2
    DOI
    出版ステータスPublished - 2015 2 20

    ASJC Scopus subject areas

    • 生化学、遺伝学、分子生物学(全般)
    • 農業および生物科学(全般)
    • 一般

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