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  • Title: Severe and selective deficiency of interferon-gamma-producing invariant natural killer T cells in patients with myelodysplastic syndromes.
    Author: Fujii S, Shimizu K, Klimek V, Geller MD, Nimer SD, Dhodapkar MV.
    Journal: Br J Haematol; 2003 Aug; 122(4):617-22. PubMed ID: 12899717.
    Abstract:
    Here we show that patients with myelodysplastic syndromes (MDS) have a severe deficiency of glycolipid reactive Valpha24+/Vbeta11+ natural killer T (NKT) cells, but not NK cells or CD4+ or CD8+ T cells. Neither the blood nor marrow of MDS patients had detectable interferon-gamma-producing NKT cells in response to the NKT ligand, alpha-galactosyl ceramide, although influenza-virus-specific effector T-cell function was preserved. This severe and selective deficiency of an important immune regulatory cell may contribute to the pathogenesis of MDS.
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