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Erschienen in: Journal of Cancer Research and Clinical Oncology 8/2014

01.08.2014 | Review - Cancer Research

Nrf2: bane or blessing in cancer?

verfasst von: MingJun Xiang, Akhileshwar Namani, ShiJun Wu, XiaoLi Wang

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 8/2014

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Abstract

Background

The Kelch-like ECH-associated protein 1 (Keap1)–nuclear factor-E2-related factor 2 (Nrf2)–antioxidant response element pathway serves a major function in endogenous cytoprotection in normal cells. Nrf2 is a transcription factor that mainly regulates the expression of a wide array of genes that produce the antioxidants and other proteins responsible for the detoxification of xenobiotics and reactive oxygen species. Nrf2 mediates the chemoprevention of cancer in normal cells.

Results and discussion

Growing body of evidence suggests that Nrf2 is not only involved in the chemoprevention of normal cells but also promotes the growth of cancer cells. However, the mechanism underlying the function of Nrf2 in oncogenesis and tumor protection in cancer cells remains unclear and thus requires further study.

Conclusion

This review aims to rationalize the existing functions of Nrf2 in chemoprevention and tumorigenesis, as well as the somatic mutations of Nrf2 and Keap1 in cancer and Nrf2 cross talk with miRNAs. This review also discusses the future challenges in Nrf2 research.
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Zurück zum Zitat Nguyen T, Sherratt PJ, Huang HC, Yang CS, Pickett CB (2003) Increased protein stability as a mechanism that enhances Nrf2-mediated transcriptional activation of the antioxidant response element. Degradation of Nrf2 by the 26 S proteasome. J Biol Chem 278(7):4536–4541 Nguyen T, Sherratt PJ, Huang HC, Yang CS, Pickett CB (2003) Increased protein stability as a mechanism that enhances Nrf2-mediated transcriptional activation of the antioxidant response element. Degradation of Nrf2 by the 26 S proteasome. J Biol Chem 278(7):4536–4541
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Zurück zum Zitat Rachakonda G, Xiong Y, Sekhar KR, Stamer SL, Liebler DC, Freeman ML (2008) Covalent modification at Cys151 dissociates the electrophile sensor Keap1 from the ubiquitin ligase CUL3. Chem Res Toxicol 21(3):705–710 Rachakonda G, Xiong Y, Sekhar KR, Stamer SL, Liebler DC, Freeman ML (2008) Covalent modification at Cys151 dissociates the electrophile sensor Keap1 from the ubiquitin ligase CUL3. Chem Res Toxicol 21(3):705–710
Zurück zum Zitat Rachakonda G, Sekhar KR, Jowhar D, Samson PC, Wikswo JP, Beauchamp RD, Datta PK, Freeman ML (2010) Increased cell migration and plasticity in Nrf2-deficient cancer cell lines. Oncogene 29(25):3703–3714PubMedCentralPubMedCrossRef Rachakonda G, Sekhar KR, Jowhar D, Samson PC, Wikswo JP, Beauchamp RD, Datta PK, Freeman ML (2010) Increased cell migration and plasticity in Nrf2-deficient cancer cell lines. Oncogene 29(25):3703–3714PubMedCentralPubMedCrossRef
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Zurück zum Zitat Rada P, Rojo AI, Chowdhry S, McMahon M, Hayes JD, Cuadrado A (2011) SCF/{beta}-TrCP promotes glycogen synthase kinase 3-dependent degradation of the Nrf2 transcription factor in a Keap1-independent manner. Mol Cell Biol 31(6):1121–1133PubMedCentralPubMedCrossRef Rada P, Rojo AI, Chowdhry S, McMahon M, Hayes JD, Cuadrado A (2011) SCF/{beta}-TrCP promotes glycogen synthase kinase 3-dependent degradation of the Nrf2 transcription factor in a Keap1-independent manner. Mol Cell Biol 31(6):1121–1133PubMedCentralPubMedCrossRef
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Zurück zum Zitat Reddy NM, Kleeberger SR, Yamamoto M, Kensler TW, Scollick C, Biswal S, Reddy SP (2007) Genetic dissection of the Nrf2- dependent redox signaling-regulated transcriptional programs of cell proliferation and cytoprotection. Physiol Genomics 32(1):74–81PubMedCrossRef Reddy NM, Kleeberger SR, Yamamoto M, Kensler TW, Scollick C, Biswal S, Reddy SP (2007) Genetic dissection of the Nrf2- dependent redox signaling-regulated transcriptional programs of cell proliferation and cytoprotection. Physiol Genomics 32(1):74–81PubMedCrossRef
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Zurück zum Zitat Tang X, Wang H, Fan L, Wu X, Xin A, Ren H, Wang XJ (2011) Luteolin inhibits Nrf2 leading to negative regulation of the Nrf2/ARE pathway and sensitization of human lung carcinoma A549 cells to therapeutic drugs. Free Radic Biol Med 50(11):1599–1609PubMedCrossRef Tang X, Wang H, Fan L, Wu X, Xin A, Ren H, Wang XJ (2011) Luteolin inhibits Nrf2 leading to negative regulation of the Nrf2/ARE pathway and sensitization of human lung carcinoma A549 cells to therapeutic drugs. Free Radic Biol Med 50(11):1599–1609PubMedCrossRef
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Metadaten
Titel
Nrf2: bane or blessing in cancer?
verfasst von
MingJun Xiang
Akhileshwar Namani
ShiJun Wu
XiaoLi Wang
Publikationsdatum
01.08.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
Journal of Cancer Research and Clinical Oncology / Ausgabe 8/2014
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-014-1627-1

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