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Updated: Aug 21, 2026

Co-Culture and Transduction of Murine Thymocytes on Delta-Like 4-Expressing Stromal Cells to Study Oncogenes in T-Cell Leukemia
Published on: June 9, 2023
Human bone marrow CD34+ progenitor cells mature to T cells on OP9-DL1 stromal cell line without thymus
Magda De Smedt1, Inge Hoebeke, Jean Plum
1Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, University Hospital Ghent, Ghent University, B9000 Ghent, Belgium.
Abstract:
In this paper, we confirm data reported by the group of Zúñiga-Pflücker that human cord blood CD34(+)38(-)Lin- progenitor cells when co-cultured with the murine stromal cell line OP9-DL engineered to express the Notch ligand delta-like-1 mature into T lymphocytes with a phenotypic progression as the one seen in thymus. We show that this is also the case for human T cells starting from CD34(+) adolescent bone marrow cells. These findings offer the theoretical possibility to generate ex vivo human T cells and administer them in vivo in patients to overcome their immune deficient window period after transplantation. However, the practical and theoretical problems that this new technology has to overcome before this technique can be applied in clinic are still enormous and discussed.
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