Amelioration of lytic abnormalities of paroxysmal nocturnal hemoglobinuria with decay-accelerating factor.

A case of paroxysmal nocturnal hemoglobinuria without deficiency of decay-accelerating factor on erythrocytes.

Distribution of decay-accelerating factor in the peripheral blood of normal individuals and patients with paroxysmal nocturnal hemoglobinuria

Decay-accelerating factor (DAF) is a 70,000 Mr protein that has been isolated from the membrane of red cells. The function of DAF is to inhibit the assembly of amplifying enzymes of the complement cascade on the cell surface, thereby protecting them from damage by autologous complement. We raised monoclonal antibodies to DAF and used them to study its distribution in cells from the peripheral b...

Membrane expression of decay-accelerating factor on neutrophils from normal individuals and patients with paroxysmal nocturnal hemoglobinuria.

Decay-accelerating factor (DAF), a complement-regulating glycoprotein, was found to be a maturational protein for normal neutrophils, and a remarkable correlation was found between the DAF level and alkaline phosphatase activity in neutrophils. We studied the relationship between the amount of DAF on the membrane and cell maturity in total nucleated bone marrow (BM) cells, mature BM and periphe...

Intestinal perforation in a patient with paroxysmal nocturnal hemoglobinuria

Paroxysmal nocturnal hemoglobinuria (PNH) is a rare hematologic disorder that manifests with hemolytic anemia, thrombosis, and peripheral blood cytopenias.Acute abdominal pain is one of the PNH clinical manifestations due to venous thrombosis of intra-abdominal sites including hepatic, portal, mesenteric, and splenic veins.Eculizumaband allogeneic bone marrow transplantation (BMT) arethe only w...

Different distribution of decay-accelerating factor on hematopoietic progenitors from normal individuals and patients with paroxysmal nocturnal hemoglobinuria.

Deficiency of decay-accelerating factor (DAF) occurs in blood cells in paroxysmal nocturnal hemoglobinuria (PNH), characterized by an unusual susceptibility to hemolysis by complement activation. This study examined DAF expression on hematopoietic progenitors from normal individuals and PNH patients using a fluorescence-activated cell sorter (FACS) with monoclonal antibodies to DAF. Nonphagocyt...