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Stem Cell Reports . Micro-patterned culture of iPSC-derived alveolar and airway cells distinguishes SARS-CoV-2 variants

tetano

Editor, Senior Moderator
Stem Cell Reports


. 2024 Mar 15:S2213-6711(24)00048-1.
doi: 10.1016/j.stemcr.2024.02.011. Online ahead of print. Micro-patterned culture of iPSC-derived alveolar and airway cells distinguishes SARS-CoV-2 variants

Atsushi Masui[SUP] 1 [/SUP], Rina Hashimoto[SUP] 2 [/SUP], Yasufumi Matsumura[SUP] 3 [/SUP], Takuya Yamamoto[SUP] 4 [/SUP], Miki Nagao[SUP] 3 [/SUP], Takeshi Noda[SUP] 5 [/SUP], Kazuo Takayama[SUP] 6 [/SUP], Shimpei Gotoh[SUP] 7 [/SUP]



Affiliations
Free article Abstract

The emergence of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) variants necessitated a rapid evaluation system for their pathogenesis. Lung epithelial cells are their entry points; however, in addition to their limited source, the culture of human alveolar epithelial cells is especially complicated. Induced pluripotent stem cells (iPSCs) are an alternative source of human primary stem cells. Here, we report a model for distinguishing SARS-CoV-2 variants at high resolution, using separately induced iPSC-derived alveolar and airway cells in micro-patterned culture plates. The position-specific signals induced the apical-out alveolar type 2 and multiciliated airway cells at the periphery and center of the colonies, respectively. The infection studies in each lineage enabled profiling of the pathogenesis of SARS-CoV-2 variants: infection efficiency, tropism to alveolar and airway lineages, and their responses. These results indicate that this culture system is suitable for predicting the pathogenesis of emergent SARS-CoV-2 variants.

Keywords: SARS-CoV-2; airway epithelial cell; alveolar epithelial cell; human iPSC; image analysis; micro-patterned; organoid; variant.

 
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