Title
Characterization of distal airway stem-like cells expressing N-terminally truncated p63 and thyroid transcription factor-1 in the human lung
Authors
Yusuke Tanaka, Miki Yamaguchi, Sachie Hirai, Toshiyuki Sumi, Makoto Tada, Atsushi Saito, Hirofumi Chiba, Takashi Kojima, Atsushi Watanabe, Hiroki Takahashi, Yuji Sakuma
Institution
University of Sapporro
Country
Japan
Year
2018
Journal
Experimental Cell Research
Abstract
Distal airway stem cells (DASCs) in the mouse lung can differentiate into bronchioles and alveoli. However, it remains unclear whether the same stem cells exist in the human lung. Here, we found that human lung epithelial (HuL) cells, derived from normal, peripheral lung tissue, in monolayer, mostly express both the N-terminally truncated isoform of p63 (∆Np63), a marker for airway basal cells, and thyroid transcription factor-1 (TTF-1), a marker for alveolar epithelial cells, even though these two molecules are usually expressed in a mutually exclusive way. Three-dimensionally cultured HuL cells differentiated to form bronchiole-like and alveolus-like organoids. We also uncovered a few bronchiolar epithelial cells expressing both ∆Np63 and TTF-1 in the human lung, suggesting that these cells are the cells of origin for HuL cells. Taken together, ΔNp63+ TTF-1+ peripheral airway epithelial cells are possibly the human counterpart of mouse DASCs and may offer potential for future regenerative medicine.
Product use
3D cultured human lung epithelial cells differentiated to form bronchiole-like and alveolus-like organoids
Tissue type
Airway
Tissue info
Humal lung epithelial cells
Species
Human

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