Stable lines and clones of long-term proliferating normal, genetically unmodified murine common lymphoid progenitors

• Published in: Blood Vol. 131; no. 18; pp. 2026 - 2035
• Main Authors: Kawano, Yohei, Petkau, Georg, Stehle, Christina, Durek, Pawel, Heinz, Gitta Anne, Tanimoto, Kousuke, Karasuyama, Hajime, Mashreghi, Mir-Farzin, Romagnani, Chiara, Melchers, Fritz
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 03.05.2018
• Subjects: Animals; Bone Marrow Cells - cytology; Bone Marrow Cells - metabolism; Cell Differentiation - genetics; Cell Line; Cell Lineage; Cell Proliferation; Cell Survival - genetics; Cells, Cultured; Clone Cells; Gene Expression; Genes, Reporter; Ligands; Lymphoid Progenitor Cells - cytology; Lymphoid Progenitor Cells - metabolism; Mice; Myeloid Cells - cytology; Myeloid Cells - metabolism; Transduction, Genetic
• ISSN: 0006-4971; 1528-0020
• DOI: 10.1182/blood-2017-09-805259

Common lymphoid progenitors (CLPs) differentiate to T and B lymphocytes, dendritic cells, natural killer cells, and innate lymphoid cells. Here, we describe culture conditions that, for the first time, allow the establishment of lymphoid-restricted, but uncommitted, long-term proliferating CLP cell lines and clones from a small pool of these cells from normal mouse bone marrow, without any genetic manipulation. Cells from more than half of the cultured CLP clones could be induced to differentiate to T, B, natural killer, dendritic, and myeloid cells in vitro. Cultured, transplanted CLPs transiently populate the host and differentiate to all lymphoid subsets, and to myeloid cells in vivo. This simple method to obtain robust numbers of cultured noncommitted CLPs will allow studies of cell-intrinsic and environmentally controlled lymphoid differentiation programs. If this method can be applied to human CLPs, it will provide new opportunities for cell therapy of patients in need of myeloid-lymphoid reconstitution. •We have established a novel culture system for long-term proliferating murine lymphoid progenitors without any genetic manipulation.•The cultured lymphoid progenitors can differentiate to lymphoid and myeloid lineages in vitro and in vivo. [Display omitted]