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  • Title: Development of T cells in vitro from precursors in mouse bone marrow.
    Author: Benveniste P, Chadwick BS, Miller RG.
    Journal: Cell Immunol; 1990 Apr 15; 127(1):92-104. PubMed ID: 2138521.
    Abstract:
    Bone marrow cells from 6- to 8-week-old athymic nude mice were depleted of nylon-wool adherent cells and cultured in vitro at low cell numbers (300 cells/well) in medium supplemented with a supernatant from a thymoma cell line. About 1% of cultured cells grew. Pooled cultures contained cells expressing CD3 (52%), CD4 (37%), CD8 (11%), Thy 1.2 (72%), MAC-1 (43%) and J11d (86%) but no cells expressing sIg. They also contained cells expressing mRNA for the alpha, beta, gamma, and delta chains of the T cell receptor as assessed with C region probes using a sensitive dot blot assay. These cells appear to develop from progenitors which are CD3-. When pooled Day 10 cultures were depleted of nylon-wool adherent cells, the remaining cells were nearly all J11d+, Thy 1.2+, MAC-1-, CD3+, and either CD4+CD8+; CD4+CD8-; CD4-CD8+, or CD4-CD8-; i.e., their surface marker patterns were reminiscent of those of thymocytes. We conclude that our culture system is enabling bone marrow precursors to commence differentiation down the T cell lineage in the absence of a thymic environment.
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