Detailed immunophenotypic characterization of different major and minor subsets of peripheral blood cells in patients with paroxysmal nocturnal hemoglobinuria

Transfusion ◽  
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Vol 48 (7) ◽  
pp. 1403-1414 ◽  
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Julia Almeida ◽  
Mara J. Acevedo ◽  
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Blood ◽  
1994 ◽  
Vol 83 (3) ◽  
pp. 853-859 ◽  
Author(s):  
H Ohashi ◽  
T Hotta ◽  
A Ichikawa ◽  
T Kinoshita ◽  
R Taguchi ◽  
...  

To investigate clonal compositions of hematologic cells in paroxysmal nocturnal hemoglobinuria (PNH), we analyzed peripheral blood (PB) cells of 12 female patients with PNH, by clonality analysis using X-chromosome inactivation and assessment of expression of glycophosphatidylinositol-anchored proteins (GPI-APs) by flow cytometry. Southern hybridization showed that granulocytes were monoclonal in three and polyclonal in eight patients, respectively, whereas lymphocytes were polyclonal in all nine patients examined. Expressions of CD16 and CD59 on granulocytes varied greatly in seven patients examined. Clonality analysis of granulocytes by the polymerase chain reaction showed that CD59-and CD59low+ cells were monoclonal, whereas CD59+ cells were polyclonal. It was shown that PB cells are predominantly chimeric of clonal (GPI-AP-or GPI-APlow+) and nonclonal (GPI-AP+) cells in PNH, and that degrees of chimerism differ greatly from patient to patient.


Blood ◽  
1994 ◽  
Vol 83 (3) ◽  
pp. 853-859 ◽  
Author(s):  
H Ohashi ◽  
T Hotta ◽  
A Ichikawa ◽  
T Kinoshita ◽  
R Taguchi ◽  
...  

Abstract To investigate clonal compositions of hematologic cells in paroxysmal nocturnal hemoglobinuria (PNH), we analyzed peripheral blood (PB) cells of 12 female patients with PNH, by clonality analysis using X-chromosome inactivation and assessment of expression of glycophosphatidylinositol-anchored proteins (GPI-APs) by flow cytometry. Southern hybridization showed that granulocytes were monoclonal in three and polyclonal in eight patients, respectively, whereas lymphocytes were polyclonal in all nine patients examined. Expressions of CD16 and CD59 on granulocytes varied greatly in seven patients examined. Clonality analysis of granulocytes by the polymerase chain reaction showed that CD59-and CD59low+ cells were monoclonal, whereas CD59+ cells were polyclonal. It was shown that PB cells are predominantly chimeric of clonal (GPI-AP-or GPI-APlow+) and nonclonal (GPI-AP+) cells in PNH, and that degrees of chimerism differ greatly from patient to patient.


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