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  • Title: Increase of superoxide dismutase activity in various human leukemia cells.
    Author: Yamanaka N, Nishida K, Ota K.
    Journal: Physiol Chem Phys; 1979; 11(3):253-6. PubMed ID: 294594.
    Abstract:
    (1) Superoxide dismutase activity in polymorphonuclear cells from human blood is considerably lower than that in lymphocytes. Macrophages from ascites show the middle level between the other two cells. (2) In myelocytic, monocytic, and lymphocytic leukemia cells, the enzyme activities are increased compared to those in the corresponding normal cells. (3) Gel electrophoresis patterns of all normal cells reveal bands corresponding to the cytosol and mitochondrial bands reported in previous studies. However, the mitochondrial Mn-containing superoxide dismutase activities are diminished or absent in leukemia cells. CN-insensitive superoxide dismutase activity in leukemia cells is not detected under the conditions.
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