ArticleHistochemistry and cell biology2019
FoxN1 mediates thymic cortex-medulla differentiation through modifying a developmental pattern based on epithelial tubulogenesis.
Article in Histochemistry and cell biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Thymus Ontogeny and Development.Advances in experimental medicine and biology · 2025Review
- Integration of single-cell transcriptomes and chromatin landscapes reveals regulatory programs driving pharyngeal organ development.Nature communications · 2022Article
- Thymus Inception: Molecular Network in the Early Stages of Thymus Organogenesis.International journal of molecular sciences · 2020Review
- T-Cell Immunodeficiencies With Congenital Alterations of Thymic Development: Genes Implicated and Differential Immunological and Clinical Features.Frontiers in immunology · 2020Review
- In focus in HCB.Histochemistry and cell biology · 2019Article
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Authors and funding
5 authors.
Funding
Abstract
The mechanisms that determine the commitment of thymic epithelial precursors to the two major thymic epithelial cell lineages, cTECs and mTECs, remain unknown. Here we show that FoxN1 nu mutation, which abolishes thymic epithelium differentiation, results in the formation of a tubular branched structure according to a typical branching morphogenesis and tubulogenesis developmental pattern. In the presence of FoxN1, in alymphoid NSG and fetal Ikaros-/- thymi, there is no lumen formation and only partial apical differentiation. This initiates cortex-medulla differentiation inducing expression of medullary genes in the apically differentiating cells and of cortical genes in the non-apically differentiating cells, which will definitely differentiate in wt and postnatal Ikaros-/- mice. Therefore, the thymus development is based on a branching morphogenesis and tubulogenesis developmental pattern: FoxN1 expression in the thymic primordium inhibits tubulogenesis and induces the expression of genes involved in TEC differentiation, which culminates with the expression of functional cell markers, i.e., MHCII, CD80, Aire in both postnatal Ikaros-/- and WT thymi after arrival of lymphoid progenitor cells.
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