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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Suppressor cell-mediated neutropenia in Felty's syndrome.

The mechanism of neutropenia in Felty's Syndrome (FS) was tested. The suppressor capacity of mononuclear cells from patients with FS on normal bone marrow granulopoiesis was tested by the in vitro colony forming unit in culture assay. Peripheral blood, bone marrow, and spleen cells from FS patients with marked neutropenia (less than 1,000 neutrophils/mm3) suppressed the colony forming unit in culture of normal bone marrow. Cells from rheumatoid arthritis patients without neutropenia, cells from patients with drug-induced neutropenia without rheumatoid arthritis, or plasma from FS patients failed to suppress the colony forming unit in culture. Though suppressor cells were predominantly thymus-derived (T) cells, monocytes were also effective in suppression. The suppressor efficiency of cells from the various compartments were spleen greater than bone marrow greater than peripheral blood. Splenectomy in FS transiently corrected the neutropenia and eliminated suppressor cell activity. Hyperactive suppressor cells may be responsible for the neutropenia in some patients with FS. Correction of neutropenia in these patients should be directed at modulating the suppressor cell subpopulation.[1]

References

  1. Suppressor cell-mediated neutropenia in Felty's syndrome. Abdou, N.I., NaPombejara, C., Balentine, L., Abdou, N.L. J. Clin. Invest. (1978) [Pubmed]
 
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