Isolated human polymorphonuclear leukocytes were found to contain two distinct superoxide dismutases, electrophoretically identical to the superoxide dismutases found in other human tissues. One is inhibited by cyanide and is located in the cytosol. The other is not inhibited by cyanide and is mitochondrial. These findings disagree with reports by other laboratories, which did not find the cyanide-sensitive cytoplasmic enzyme. The superoxide dismutase-containing preparation of leukocytes released large amounts of superoxide into the medium when the cells were phagocytizing, suggesting that, if the cell population is homogeneous, superoxide production probably takes place on the outer surface of the cell membrane, in addition to inside the phagocytic vacuole.
Marvin L. Salin, Joe M. McCord
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Title and authors | Publication | Year |
---|---|---|
Unique characteristics of superoxide production by human eosinophils in eosinophilic states
AI Tauber, EJ Goetzl, BM Babior |
Inflammation | 1979 |
Superoxide dismutase and glutathione peroxidase in polymorphonuclear leucocytes
M Rister, K Bauermeister, U Gravert, E Gladtke |
European Journal of Pediatrics | 1979 |
Catalase and dehydroascorbate reductase in human polymorphonuclear leukocytes (PMN): Possible functional relationship
L Stankova, R Bigley, SR Wyss, H Aebi |
Experientia | 1979 |
Inability to Demonstrate Hydroxylation of Tyrosine by Murine Melanoma "Tyrosinase" (L-DOPA Oxidase), Using the Tritiated Water Assay Technique
HC Shapiro, LM Edelstein, RP Patel, MR Okun, M Blackburn, M Snyder, T Brennan, G Wilgram |
Journal of Investigative Dermatology | 1979 |
The release of superoxide anion from granulocytes: Effect of inhibitors of anion permeability
R Gennaro, D Romeo |
Biochemical and Biophysical Research Communications | 1979 |
Heat Inactivation of Superoxide Dismutase in Bovine Milk
CL Hicks, J Bucy, W Stofer |
Journal of Dairy Science | 1979 |
Superoxide dismutase activity of T lymphocytes and non-T lymphocytes
Y Kobayashi, S Okahata, T Sakano, K Tanabe, T Usui |
FEBS Letters | 1979 |
Cell Biology and Immunology of Leukocyte Function
MH Freedman |
Cell Biology and Immunology of Leukocyte Function | 1979 |
Evaluation of negative staining technique for determination of CN−-insensitive superoxide dismutase activity
GD Rosa, DS Duncan, CL Keen, LS Hurley |
Biochimica et Biophysica Acta (BBA) - Enzymology | 1979 |
Different effects of concanavalin A and its succinylated derivative on superoxide release in peritoneal macrophages
T Yasaka, T Kambara |
Biochimica et Biophysica Acta (BBA) - General Subjects | 1979 |
The effect of oxidant stress on diamide-treated human granulocytes
SJ Weiss, AL Sagone |
Biochimica et Biophysica Acta (BBA) - General Subjects | 1979 |
Structural and catalytic properties of the solubilized superoxide-generating activity of human polymorphonuclear leukocytes. Solubilization, stabilization in solution, and partial characterization
AI Tauber, EJ Goetzl |
Biochemistry | 1979 |
Inborn Errors of Immunity and Phagocytosis
F Güttler, JW Seakins, RA Harkness |
1979 |