Abstract: |
Using genetic and phenotypic analyses, we have analyzed the developmental pathway of mouse CD1d-restricted invariant NKT cells. We provide strong evidence that similar to conventional T cells, positive selection of NKT cells occurs during a CD4+CD8+ stage. Later stages of NKT cell development involved the down-regulation of both TCR and CD4 levels and therefore diverge from conventional T cell development pathways. A unique and complete dependency for development on Fyn, a Src family kinase member, also distinguishes the NKT cell and conventional T cell populations. © 2004 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Keywords: |
controlled study; proto-oncogene proteins; nonhuman; genetic analysis; cd8 antigen; t lymphocyte; t-lymphocytes; animal cell; mouse; phenotype; animals; mice; cell maturation; cell differentiation; protein tyrosine kinase; mice, transgenic; t lymphocyte receptor; thymus; receptors, antigen, t-cell; thymus gland; natural killer cell; killer cells, natural; down regulation; cd4 antigen; protein family; src-family kinases; developmental stage; t lymphocyte subpopulation; cell selection; cd1d antigen; protein kinase fyn; proto-oncogene proteins c-fyn; t cell receptor; antigens, cd1; cd1d; priority journal; article; inkt cells
|