The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
Glutaredoxin Exerts an Antiapoptotic Effect by Regulating the Redox State of Akt
Open accessAbstract
Glutaredoxin (GRX) is a small dithiol protein involved in various cellular functions, including the redox regulation of certain enzyme activities. GRX functions via a disulfide exchange reaction by utilizing the active site Cys-Pro-Tyr-Cys. Here we demonstrated that overexpression of GRX protected cells from hydrogen peroxide (H2O2)-induced apoptosis by regulating the redox state of Akt. Akt was transiently phosphorylated, dephosphorylated, and then degraded in cardiac H9c2 cells undergoing H2O2-induced apoptosis. Under stress, Akt underwent disulfide bond formation between Cys-297 and Cys-311 and dephosphorylation in accordance with an increased association with protein phosphatase 2A. Overexpression of GRX protected Akt from H2O2-induced oxidation and suppressed recruitment of protein phosphatase 2A to Akt, resulting in a sustained phosphorylation of Akt and inhibition of apoptosis. This effect was reversed by cadmium, an inhibitor of GRX. Furthermore an in vitro assay revealed that GRX reduced oxidized Akt in concert with glutathione, NADPH, and glutathione-disulfide reductase. Thus, GRX plays an important role in protecting cells from apoptosis by regulating the redox state of Akt.
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Redox regulation of cell survival
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Metadata
- Authors
- Murata, H., Ihara, Y., Nakamura, H., Yodoi, J., Sumikawa, K., & Kondo, T.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2003-12
- Volume
- 278
- Issue
- 50
- Pages
- 50226-50233
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1975287242
- Cited by
- 314
- References
- 44
- FWCI
- 4.07
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Murata, H., Ihara, Y., Nakamura, H., Yodoi, J., Sumikawa, K., & Kondo, T. (2003). Glutaredoxin Exerts an Antiapoptotic Effect by Regulating the Redox State of Akt. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m310171200
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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