Manganese Superoxide Dismutase Levels Are Elevated in a Proportion of Amyotrophic Lateral Sclerosis Patient Cell Lines

2000 ◽  
Vol 273 (1) ◽  
pp. 359-363 ◽  
Author(s):  
Gillian McEachern ◽  
Sacha Kassovska-Bratinova ◽  
Sandeep Raha ◽  
Mark A. Tarnopolsky ◽  
John Turnbull ◽  
...  
Keyword(s):  
Amyotrophic Lateral Sclerosis ◽  
Superoxide Dismutase ◽  
Cell Lines ◽  
Manganese Superoxide Dismutase ◽  
Amyotrophic Lateral Sclerosis Patient ◽  
Manganese Superoxide ◽  
Lateral Sclerosis ◽  
Patient Cell

Mutation screening of manganese superoxide dismutase in amyotrophic lateral sclerosis

Neuroreport ◽  
2001 ◽  
Vol 12 (11) ◽  
pp. 2319-2322 ◽  
Author(s):  
Janine Tomkins ◽  
Steven J. Banner ◽  
Christopher J. McDermott ◽  
Pamela J. Shaw
Keyword(s):  
Amyotrophic Lateral Sclerosis ◽  
Superoxide Dismutase ◽  
Manganese Superoxide Dismutase ◽  
Mutation Screening ◽  
Manganese Superoxide ◽  
Lateral Sclerosis

scholarly journals Regulation of manganese superoxide dismutase and other antioxidant genes in normal and leukemic hematopoietic cells and their relationship to cytotoxicity by tumor necrosis factor

Blood ◽  
1993 ◽  
Vol 82 (4) ◽  
pp. 1142-1150 ◽  
Author(s):  
M Kizaki ◽  
A Sakashita ◽  
A Karmakar ◽  
CW Lin ◽  
HP Koeffler
Keyword(s):  
Superoxide Dismutase ◽  
Tumor Necrosis Factor ◽  
Cell Lines ◽  
Tumor Necrosis ◽  
Manganese Superoxide Dismutase ◽  
Hematopoietic Cells ◽  
Antioxidant Genes ◽  
Normal Peripheral Blood ◽  
Manganese Superoxide ◽  
Necrosis Factor

Myeloid cells are a major source of superoxide and other oxygen metabolites. As a protective mechanism, cells express antioxidant enzymes including manganese superoxide dismutase (Mn-SOD), copper-zinc SOD (Cu/Zn-SOD), and glutathione peroxidase (GSX-PX). Even though hematopoietic cells are a major source of oxidants, little is known of their expression of antioxidants. We found that seven myeloid leukemic cell lines blocked at different stages of differentiation constitutively expressed Mn-SOD, Cu/Zn-SOD, and GSX-PX RNAs. Level of Mn-SOD activities paralleled levels of Mn-SOD RNA. Terminal differentiation of native HL-60 cells to either granulocytes or macrophages did not alter levels of Mn-SOD RNA but markedly decreased cell division. Myeloid leukemic lines sensitive to cytotoxic effects of tumor necrosis factor (TNF) as well as normal peripheral blood lymphocytes and monocytes, dramatically increased their levels of Mn- SOD RNA in the presence of TNF. In contrast, Cu/Zn-SOD and GSX-PX RNA levels did not increase in these same cells. TNF-resistant leukemic lines had higher constitutive levels of Mn-SOD RNA and activity; and these levels did not change in the presence of TNF. Antisense but not random oligonucleotides to Mn-SOD markedly increased the sensitivity to the inhibitory effects of TNF for both the native HL-60 (TNF-sensitive) and K562 (TNF-resistant) cell lines. Further studies showed that the antisense oligonucleotides entered the cells and resulted in decreased levels of Mn-SOD RNA. The data suggest that Mn-SOD may provide protection against cytotoxicity of TNF in hematopoietic cells.

scholarly journals Conditional Radioresistance of tet-Inducible Manganese Superoxide Dismutase Bone Marrow Stromal Cell Lines

2013 ◽  
Vol 180 (2) ◽  
pp. 189 ◽  
Author(s):  
Michael W. Epperly ◽  
J. Richard Chaillet ◽  
Ronny Kalash ◽  
Ben Shaffer ◽  
Julie Goff ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Superoxide Dismutase ◽  
Cell Lines ◽  
Stromal Cell ◽  
Manganese Superoxide Dismutase ◽  
Bone Marrow Stromal Cell ◽  
Marrow Stromal Cell ◽  
Manganese Superoxide
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