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Novel Dynamics of Human Mucociliary Differentiation Revealed by Single-cell RNA Sequencing of Nasal Epithelial Cultures

Abstract

The upper airway epithelium, which is mainly composed of multiciliated, goblet, club and basal cells, ensures proper mucociliary function and can regenerate in response to assaults. In chronic airway diseases, defective repair leads to tissue remodeling. Delineating key drivers of differentiation dynamics can help understand how normal or pathological regeneration occurs. Using single-cell transcriptomics and lineage inference, we have unraveled trajectories from basal to luminal cells, providing novel markers for specific populations. We report that: (1) a precursor subgroup of multiciliated cells, which we have entitled deuterosomal cells, is defined by specific markers, such as DEUP1, FOXN4, YPEL1, HES6 and CDC20B; (2) goblet cells can be precursors of multiciliated cells, thus explaining the presence of hybrid cells that co-express markers of goblet and multiciliated cells; and (3) a repertoire of molecules involved in the regeneration process, such as keratins or components of the Notch, Wnt or BMP/TGFβ pathways, can be identified. Confirmation of our results on fresh human and pig airway samples, and on mouse tracheal cells, extend and confirm our conclusions regarding the molecular and cellular choreography at work during mucociliary epithelial differentiation.

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References
1.
Jumppanen M, Gruvberger-Saal S, Kauraniemi P, Tanner M, Bendahl P, Lundin M . Basal-like phenotype is not associated with patient survival in estrogen-receptor-negative breast cancers. Breast Cancer Res. 2007; 9(1):R16. PMC: 1851391. DOI: 10.1186/bcr1649. View

2.
Zemke A, Teisanu R, Giangreco A, Drake J, Brockway B, Reynolds S . beta-Catenin is not necessary for maintenance or repair of the bronchiolar epithelium. Am J Respir Cell Mol Biol. 2009; 41(5):535-43. PMC: 2778160. DOI: 10.1165/rcmb.2008-0407OC. View

3.
Wang S, Rosenberger C, Bao Y, Stark J, Harrod K . Clara cell secretory protein modulates lung inflammatory and immune responses to respiratory syncytial virus infection. J Immunol. 2003; 171(2):1051-60. DOI: 10.4049/jimmunol.171.2.1051. View

4.
Schmid A, Sailland J, Novak L, Baumlin N, Fregien N, Salathe M . Modulation of Wnt signaling is essential for the differentiation of ciliated epithelial cells in human airways. FEBS Lett. 2017; 591(21):3493-3506. PMC: 5683904. DOI: 10.1002/1873-3468.12851. View

5.
Rawlins E, Okubo T, Xue Y, Brass D, Auten R, Hasegawa H . The role of Scgb1a1+ Clara cells in the long-term maintenance and repair of lung airway, but not alveolar, epithelium. Cell Stem Cell. 2009; 4(6):525-34. PMC: 2730729. DOI: 10.1016/j.stem.2009.04.002. View