Abstract:
:Effects of endogenous Notch ligands Jagged-1 and Delta-1 on maturation markers in adult mouse lymphocytes were checked in vitro on putative thymocyte precursors from bone marrow and on DN3 cells from the thymus. Both populations were cocultured with stromal cells (Small M, Histochem Cell Biol 2005;123:513) naturally expressing high levels of either Jagged-1 or Delta-1. Initially the bone marrow cells were Thy-1.2(neg) while the majority were B220(hi). These trends were reversed by culture on both the Jagged-1(hi) and Delta-1(hi) monolayers. Then DN3 thymocytes were cultured with stroma expressing these two ligands and the T cell receptor beta chain was expressed more clearly after coculture on Delta-1(hi) stroma. These findings indicate that stromal cells with endogenous Jagged-1 as well as Delta-1 could initiate early changes toward T cell commitment while Delta-1 favored later alphabeta-TCR development.
journal_name
Dev Comp Immunoljournal_title
Developmental and comparative immunologyauthors
Small Mdoi
10.1016/j.dci.2005.12.003keywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
966-73issue
10eissn
0145-305Xissn
1879-0089pii
S0145-305X(05)00240-5journal_volume
30pub_type
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journal_title:Developmental and comparative immunology
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