Inhibition of Neuronal Apoptosis by a Metalloporphyrin Superoxide Dismutase Mimic
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چکیده
منابع مشابه
A metalloporphyrin-based superoxide dismutase mimic inhibits adoptive transfer of autoimmune diabetes by a diabetogenic T-cell clone.
We present here the first report of a metalloporphyrin-based antioxidant that can prevent or delay the onset of autoimmune diabetes. Type 1 diabetes is an autoimmune process whereby T-cells recognize pancreatic beta-cell antigens and initiate a leukocyte infiltrate that produces proinflammatory cytokines and reactive oxygen species (ROS), ultimately leading to beta-cell destruction. Because isl...
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A lot of effort has been put into the synthesis of copper complexes with superoxide-dismutase (SOD) activity because of their potential pharmaceutical applications. In this work, we study a model for these so-called SOD mimics (SODm), namely a copper complex of 6-(2-hydroxy-benzaldehyde) hydrazono-as-triazine-3,5-dione, which shows an extremely high SOD-like activity in solution. X-Ray diffract...
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Many Gram-negative bacteria interact with extracellular metal ions by expressing one or more siderophore types. Among these, the virulence-associated siderophore yersiniabactin (Ybt) is an avid copper chelator, forming stable cupric (Cu(II)-Ybt) complexes that are detectable in infected patients. Here we show that Ybt-expressing E. coli are protected from intracellular killing within copper-rep...
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Sympathetic neurons in culture die by apoptosis when deprived of nerve growth factor (NGF). We used this model of programmed cell death to study the mechanisms that mediate neuronal apoptosis. Cultured sympathetic neurons were injected with copper/zinc superoxide dismutase protein (SOD) or with an expression vector containing an SOD cDNA. In both cases apoptosis was delayed when the neurons wer...
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BACKGROUND AND PURPOSE Recently, apoptosis- inducing factor (AIF), a mitochondrial proapoptotic protein, and its nuclear translocation have been reported in caspase-independent neuronal apoptosis. In this study, we investigated the contribution of reactive oxygen species (ROS) to the nuclear translocation of AIF and the subsequent DNA fragmentation after permanent focal cerebral ischemia (pFCI)...
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ژورنال
عنوان ژورنال: Journal of Neurochemistry
سال: 2002
ISSN: 0022-3042,1471-4159
DOI: 10.1046/j.1471-4159.1998.71031068.x