Natural killer expansion, human leukocyte antigens-E expression and CD14+ CD56+ monocytes in a myelodysplastic syndrome patient

    loading  Checking for direct PDF access through Ovid

Abstract

Myelodysplastic syndromes (MDS) are clonal disorders characterized by ineffective hematopoiesis and possible evolution to acute leukemia. Occurrence of stem cell defects and of immune-mediated mechanisms was evidenced as relevant for pathophysiology of MDS. Here, we described one case of MDS patient carrying CD14+CD56+ monocytes in bone marrow (BM), in the presence of a defective human leukocyte antigen (HLA)-E expression on peripheral blood (PB) cells and of natural killer (NK) cell expansion in PB and BM. The defective HLA-E expression and the NK expansion are proposed to be relevant for the pathogenesis of myelodysplasia in those patients showing CD14+CD56+ monocytes in BM.

Related Topics

    loading  Loading Related Articles