Abstract:
SIGNIFICANCE:Glutathione metabolism is comparable to a jigsaw puzzle with too many pieces. It is supposed to comprise (i) the reduction of disulfides, hydroperoxides, sulfenic acids, and nitrosothiols, (ii) the detoxification of aldehydes, xenobiotics, and heavy metals, and (iii) the synthesis of eicosanoids, steroids, and iron-sulfur clusters. In addition, glutathione affects oxidative protein folding and redox signaling. Here, I try to provide an overview on the relevance of glutathione-dependent pathways with an emphasis on quantitative data. Recent Advances: Intracellular redox measurements reveal that the cytosol, the nucleus, and mitochondria contain very little glutathione disulfide and that oxidative challenges are rapidly counterbalanced. Genetic approaches suggest that iron metabolism is the centerpiece of the glutathione puzzle in yeast. Furthermore, recent biochemical studies provide novel insights on glutathione transport processes and uncoupling mechanisms. CRITICAL ISSUES:Which parts of the glutathione puzzle are most relevant? Does this explain the high intracellular concentrations of reduced glutathione? How can iron-sulfur cluster biogenesis, oxidative protein folding, or redox signaling occur at high glutathione concentrations? Answers to these questions not only seem to depend on the organism, cell type, and subcellular compartment but also on different ideologies among researchers. FUTURE DIRECTIONS:A rational approach to compare the relevance of glutathione-dependent pathways is to combine genetic and quantitative kinetic data. However, there are still many missing pieces and too little is known about the compartment-specific repertoire and concentration of numerous metabolites, substrates, enzymes, and transporters as well as rate constants and enzyme kinetic patterns. Gathering this information might require the development of novel tools but is crucial to address potential kinetic competitions and to decipher uncoupling mechanisms to solve the glutathione puzzle. Antioxid. Redox Signal. 27, 1130-1161.
journal_name
Antioxid Redox Signaljournal_title
Antioxidants & redox signalingauthors
Deponte Mdoi
10.1089/ars.2017.7123subject
Has Abstractpub_date
2017-11-20 00:00:00pages
1130-1161issue
15eissn
1523-0864issn
1557-7716journal_volume
27pub_type
杂志文章,评审abstract:: Aims: The management of myocardial ischemia has been challenged by reperfusion injury. Reactive oxygen species (ROS) production is the critical cause of reperfusion injury, but antioxidant treatment failed to gain satisfactory effects. We hypothesized that improvement of r...
journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2018.7624
更新日期:2019-07-20 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2017.7092
更新日期:2018-10-20 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2013.5397
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3488
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journal_title:Antioxidants & redox signaling
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doi:10.1089/ars.2018.7503
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.3029
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.2790
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journal_title:Antioxidants & redox signaling
pub_type: 信件
doi:10.1089/152308603770310301
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2006.8.1549
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2016.6895
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2011.3895
更新日期:2011-09-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2007.1546
更新日期:2007-06-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2010.3300
更新日期:2011-05-15 00:00:00
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journal_title:Antioxidants & redox signaling
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doi:10.1089/ars.2006.8.671
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2013.5782
更新日期:2014-11-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2013.5624
更新日期:2014-02-20 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2013.5361
更新日期:2014-01-10 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
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journal_title:Antioxidants & redox signaling
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更新日期:1999-10-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2013.5308
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journal_title:Antioxidants & redox signaling
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doi:10.1089/ars.2019.7969
更新日期:2020-11-23 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2009.2584
更新日期:2009-10-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章,评审
doi:10.1089/ars.2009.2488
更新日期:2009-08-01 00:00:00
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journal_title:Antioxidants & redox signaling
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doi:10.1089/ars.2016.6833
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pub_type: 杂志文章,评审
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更新日期:2009-12-01 00:00:00
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journal_title:Antioxidants & redox signaling
pub_type: 杂志文章
doi:10.1089/ars.2007.1968
更新日期:2008-07-01 00:00:00
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更新日期:2016-11-01 00:00:00