A Novel Antimycobacterial Compound Acts as an Intracellular Iron Chelator
نویسندگان
چکیده
منابع مشابه
Sirtuin inhibitor sirtinol is an intracellular iron chelator.
Sirtinol is a known inhibitor of sirtuin proteins, a family of deacetylases involved in the pathophysiology of aging. Spectroscopic and structural data reveal that this compound is also an iron chelator forming high-spin ferric species in vitro and in cultured leukemia cells. Interactions with the highly regulated iron pool therefore contribute to its overall intracellular agenda.
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Iron is an essential element for life. However, the iron overload can be toxic. Here, we investigated the significant increase of tenellin and iron-tenellin complex production in ferricrocin-deficient mutants of Beauveria bassiana. Our chemical analysis indicated that the ferricrocin-deficient mutants T1, T3 and T5 nearly abolished ferricrocin production. In turn, these mutants had significant ...
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The primary targets of iron chelators used for treating transfusional iron overload are prevention of iron ingress into tissues and its intracellular scavenging. The present study was aimed at elucidating the capacity of clinically important iron chelators such as deferiprone (DFP), desferrioxamine, and ICL670 to (a) gain direct access to intracellular iron pools of key cells of iron accumulati...
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10.1586/14750708.3.4.453 © 2 Regular blood transfusions for the treatment of chronic anemia inevitably lead to iron overload since humans do not possess a physiological mechanism for removing excess iron. Without appropriate treatment, the cumulative effects of iron overload lead to severe organ damage and, ultimately, death. The iron chelating agent, deferoxamine, has been used effectively for...
متن کاملAn intracellular iron chelator pleiotropically suppresses enzymatic and growth defects of superoxide dismutase-deficient Escherichia coli.
Mutants of Escherichia coli that lack cytoplasmic superoxide dismutase (SOD) exhibit auxotrophies for sulfur-containing, branched-chain, and aromatic amino acids and cannot catabolize nonfermentable carbon sources. A secondary-site mutation substantially relieved all of these growth defects. The requirement for fermentable carbon and the branched-chain auxotrophy occur because superoxide (O2-) ...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 2015
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.05114-14