Transcriptomics

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A topographic atlas defines developmental origins of cell heterogeneity in the human embryonic lung [ST]


ABSTRACT: The lung contains numerous specialized cell-types with distinct roles in tissue function and integrity. To clarify the origins and mechanisms generating cell heterogeneity, we created a comprehensive topographic atlas of early human lung development. Here, we report 83 cell states, several spatially-resolved developmental trajectories and predict cell interactions within defined tissue niches. We integrated scRNA-Seq and spatially resolved transcriptomics into a web-based, open platform for interactive exploration. We show distinct gene expression programs, accompanying sequential events of cell differentiation and maturation of the secretory and neuroendocrine cell-types in proximal epithelium. We define the origin of airway fibroblasts associated with airway smooth muscle in bronchovascular bundles and describe a trajectory of Schwann cell progenitors to intrinsic parasympathetic neurons controlling bronchoconstriction. Our atlas provides a rich resource for further research and a reference for defining deviations from homeostatic and repair mechanisms leading to pulmonary diseases.

ORGANISM(S): Homo sapiens

PROVIDER: GSE215897 | GEO | 2023/01/17

REPOSITORIES: GEO

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