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Single cell RNA sequencing of mouse indced pluripotent stem cell (iPSC)-derived and mouse primary embryonic lung mesenchyme

ABSTRACT: The lung mesenchyme plays important roles in lung development and is affected in many respiratory diseases, yet relatively little is known about the biology of lung mesenchymal progenitors. We sought to establish an induced pluripotent stem cell (iPSC)-based model to study lung mesenchyme development and epithelial-mesenchymal interactions. We generated a mouse iPSC line carrying a lung mesenchyme-specific reporter/tracer to establish a protocol for differentiation into lung mesenchymal progenitors. We derived lung mesenchyme from iPSCs both by directed differentiation via a lateral plate mesodermal progenitor state (induced lung mesenchyme, iLM), and by co-development during lung epithelial differentiation (co-developed lung mesenchyme, cLM). We found that directed differentiation via a lateral plate mesoderm progenitor was not only more efficient, but also yielded engineered lung mesenchymal cells that were more similar to primary lung mesenchyme from day 12.5 mouse embryos, as determined by single cell RNAseq. Our iPSC-derived population will provide an inexhaustible source of cells for studying lung development, modeling diseases, and developing therapeutics.

ORGANISM(S): Mus

PROVIDER: GSE203245 | GEO | 2023/05/12

REPOSITORIES: GEO

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Project description:Mesenchymal stem/stromal cells (MSCs) are multipotent cells that can differentiate into a variety of cell types forming connective tissue and skeleton, and are essential participants in the development of all organs. However, MSC precursors remain largely unknown. In human embryonic stem cells (hESCs) directed to mesendodermal differentiation through coculture with OP9 stromal cells, we identified a population of mesodermal cells by surface expression of apelin receptor (APLNR1). APLNR+ cells were enriched with precursors generating compact spheroid colonies in semisolid suspension culture. Being formed by single cells, these colonies consisted of a uniform population of mesenchymal cells with a transcriptional profile representative of embryonic mesenchyme originating from lateral plate/extraembryonic mesoderm. Mesenchymal colony formation required serum-free medium and FGF2 as a colony-forming factor, could be significantly enhanced by PDGF-BB, but suppressed by VEGF. When transferred to the adherent cultures in serum-free medium with FGF2, individual colonies gave rise to multipotential mesenchymal cell lines with typical phenotype (CD146+CD105+CD73+CD31-CD43-CD45-), differentiation (chondro-, osteo-, and adipogenesis) and proliferation (>80 doublings) potentials. Consistent with lineage-restricted differentiation pattern, neither endothelial nor hematopoietic cells could be produced from adherent mesenchymal cultures, however endothelial cells could be derived from mesenchymal colonies in the early days of colony-forming culture suggesting that mesenchymal cells arose from cells with primary angiogenic potential (mesangioblasts). Together these studies identified mesangioblasts as the earliest clonogenic mesenchymal precursors at this stage of their specification from mesoderm. This set (11 samples) of expression data is sequential stages of MSC development from hESCs (H1), namely ALPNR+ mesodermal precursors isolated on day 2 and day 3 differentiation, mesangioblast (MB) cores (Day 2 H1-derived cores), hemangioblast (HB) cores (day 3 H1-derived cores), mesangioblast (MB) and hemangioblast (HB) colonies, and colony-derived MSC lines at passage 1 and 5.

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Single cell RNA sequencing of mouse indced pluripotent stem cell (iPSC)-derived and mouse primary embryonic lung mesenchyme

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