Plasma urokinase-type plasminogen activator in patients with leukemias. 1994

K Wada, and H Takahashi, and M Hanano, and W Tatewaki, and H Niwano, and Y Seki, and A Shibata
First Department of Internal Medicine, Niigata University School of Medicine, Japan.

Plasma levels of urokinase-type plasminogen activator (u-PA) were measured with an enzyme-linked immunosorbent assay in patients with leukemias. As compared with healthy subjects (0.73 +/- SD 0.17 ng/ml), plasma u-PA antigen level was markedly elevated in patients with acute promyelocytic leukemia (APL) (1.76 +/- 0.89 ng/ml) at disease onset. Mean u-PA concentrations in patients with other acute nonlymphoblastic leukemia (0.57 +/- 0.51 ng/ml), acute lymphoblastic leukemia (0.77 +/- 0.82 ng/ml) and chronic myelocytic leukemia in blastic crisis (1.30 +/- 1.35 ng/ml) were not significantly elevated, but some of them showed an elevation of plasma u-PA. Plasma u-PA values were correlated with some of the fibrinolytic parameters such as FDP and D-dimer. Plasma u-PA antigen was decreased after the administration of antileukemic drugs in patients with APL. These results suggest that the coagulopathy in patients with various leukemias may in part be associated with u-PA release from the leukemic cells, especially in patients with APL.

UI MeSH Term Description Entries
D007938 Leukemia A progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006) Leucocythaemia,Leucocythemia,Leucocythaemias,Leucocythemias,Leukemias
D008297 Male Males
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014568 Urokinase-Type Plasminogen Activator A proteolytic enzyme that converts PLASMINOGEN to FIBRINOLYSIN where the preferential cleavage is between ARGININE and VALINE. It was isolated originally from human URINE, but is found in most tissues of most VERTEBRATES. Plasminogen Activator, Urokinase-Type,U-Plasminogen Activator,Urinary Plasminogen Activator,Urokinase,Abbokinase,Kidney Plasminogen Activator,Renokinase,Single-Chain Urokinase-Type Plasminogen Activator,U-PA,Single Chain Urokinase Type Plasminogen Activator,U Plasminogen Activator,Urokinase Type Plasminogen Activator
D015473 Leukemia, Promyelocytic, Acute An acute myeloid leukemia in which abnormal PROMYELOCYTES predominate. It is frequently associated with DISSEMINATED INTRAVASCULAR COAGULATION. Leukemia, Myeloid, Acute, M3,Leukemia, Progranulocytic,Myeloid Leukemia, Acute, M3,Progranulocytic Leukemia,Promyelocytic Leukemia, Acute,AML M3,Acute Promyelocytic Leukemia,Leukemia, Acute Promyelocytic,M3 ANLL,ANLL, M3,Acute Promyelocytic Leukemias

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