Differentiation of Human Pluripotent Stem Cells into Functional Lung Alveolar Epithelial Cells.

Differentiation of Human Pluripotent Stem Cells into Functional Lung Alveolar Epithelial Cells.
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DOI:
10.1016/j.stem.2017.08.014
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发表时间:
2017-10-05
期刊:
影响因子:
23.9
通讯作者:
Kotton DN
Kotton DN
中科院分区:
医学1区
文献类型:
--
作者:
Jacob A;Morley M;Hawkins F;McCauley KB;Jean JC;Heins H;Na CL;Weaver TE;Vedaie M;Hurley K;Hinds A;Russo SJ;Kook S;Zacharias W;Ochs M;Traber K;Quinton LJ;Crane A;Davis BR;White FV;Wambach J;Whitsett JA;Cole FS;Morrisey EE;Guttentag SH;Beers MF;Kotton DN

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Lung alveoli, which are unique to air-breathing organisms, have been challenging to generate from pluripotent stem cells (PSCs) in part because there are limited model systems available to provide the necessary developmental roadmaps for in vitro differentiation. Here we report the generation of alveolar epithelial type 2 cells (AEC2s), the facultative progenitors of lung alveoli, from human PSCs. Using multicolored fluorescent reporter lines, we track and purify human SFTPC+ alveolar progenitors as they emerge from endodermal precursors in response to stimulation of Wnt and FGF signaling. Purified PSC-derived SFTPC+ cells form monolayered epithelial “alveolospheres” in 3D cultures without the need for mesenchymal support, exhibit self-renewal capacity, and display additional AEC2 functional capacities. Footprint-free CRISPR-based gene correction of PSCs derived from patients carrying a homozygous surfactant mutation (SFTPB121ins2) restores surfactant processing in AEC2s. Thus, PSC-derived AEC2s provide a platform for disease modeling and future functional regeneration of the distal lung.
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