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- W2123231154 abstract "In humans, the thymus is the primary lymphoid organ able to support the development of T cells through its three-dimensional (3D) organization of the thymic stromal cells. Since a remarkable number of similarities are shared between the thymic epithelial cells (TECs) and skin-derived keratinocytes and fibroblasts, in this study we used human keratinocytes seeded with fibroblasts on the 3D poly ε-caprolactone scaffold to evaluate their ability to replace TECs in supporting T-cell differentiation from human haematopoietic stem cells (HSCs). We observed that in the multicellular biocomposite, early thymocytes expressing CD7(+)CD1a(+), peculiar markers of an initial T-cell commitment, were de novo generated. Molecular studies of genes selectively expressed during T-cell development revealed that TAL1 was down-regulated and Spi-B was up-regulated in the cell suspension, consistently with a T-cell lineage commitment. Moreover, PTCRA and RAG2 expression was detected, indicative of a recombinant activity, required for the generation of a T-cell receptor repertoire. Our results indicate that in the multicellular biocomposite, containing skin-derived elements in the absence of thymic stroma, HSCs do start differentiating toward a T-cell lineage commitment. In conclusion, the construct described in this study exerts some properties of a lymphoid organoid, suitable for future clinical applications in cell-based therapies." @default.
- W2123231154 created "2016-06-24" @default.
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- W2123231154 date "2013-09-13" @default.
- W2123231154 modified "2023-09-27" @default.
- W2123231154 title "Human skin-derived keratinocytes and fibroblasts co-cultured on 3D poly ε-caprolactone scaffold support <i>in vitro</i> HSC differentiation into T-lineage committed cells" @default.
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- W2123231154 doi "https://doi.org/10.1093/intimm/dxt035" @default.
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- W2123231154 hasPublicationYear "2013" @default.
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