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Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2
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| Zeitschriftentitel: | Molecular Cancer Therapeutics |
|---|---|
| Personen und Körperschaften: | , , , , , , , , , |
| In: | Molecular Cancer Therapeutics, 5, 2006, 8, S. 1918-1926 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Association for Cancer Research (AACR)
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| Schlagwörter: |
| author_facet |
Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony |
|---|---|
| author |
Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony |
| spellingShingle |
Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony Molecular Cancer Therapeutics Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 Cancer Research Oncology |
| author_sort |
xu, changjiang |
| spelling |
Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony 1535-7163 1538-8514 American Association for Cancer Research (AACR) Cancer Research Oncology http://dx.doi.org/10.1158/1535-7163.mct-05-0497 <jats:title>Abstract</jats:title> <jats:p>The up-regulation of phase II detoxifying and stress-responsive genes is believed to play an important role in cancer prevention, and many natural compounds have been shown to be potent inducers of these genes. Previous studies showed that the antioxidant responsive element (ARE), found in these genes, can be bound by the transcription factor Nrf2, and is responsive to the activation by chemopreventive compounds and by oxidative stress. In the present study, we investigated the roles of extracellular signal-regulated kinase (ERK) and c-Jun-NH2-kinase (JNK) in the regulation of phenethyl isothiocyanate (PEITC)–induced and Nrf2-dependent ARE activity and ARE-driven heme oxygenase-1 (HO-1) gene expression in PC-3 cells. ARE activity and HO-1 expression were strongly increased after treatment with PEITC. PEITC also increased the phosphorylation of ERK1/2 and JNK1/2 and caused release of Nrf2 from sequestration by Keap1, and its subsequent translocation into the nucleus. Importantly, Nrf2 was also translocated into the nucleus after transfection with ERK or JNK and that these activated ERK and JNK colocalized with Nrf2 in the nucleus. Activation of ERK and JNK signaling also resulted in the elevation of ARE activity and HO-1 expression. Importantly, PEITC-induced ARE activity was attenuated by inhibition of ERK and JNK signaling. In vitro kinase assays showed that both ERK2 and JNK1 could directly phosphorylate glutathione S-transferase–Nrf2 protein. Taken together, these results strongly suggest a model in which PEITC treatment of PC-3 cells activates ERK and JNK, which, in turn, phosphorylate Nrf2 and induce its translocation to the nucleus. Nuclear Nrf2 activates ARE elements and induces expression of stress-responsive genes, including HO-1. [Mol Cancer Ther 2006;5(8):1918–26]</jats:p> Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 Molecular Cancer Therapeutics |
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American Association for Cancer Research (AACR), 2006 |
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American Association for Cancer Research (AACR), 2006 |
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1535-7163 1538-8514 |
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| title |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_unstemmed |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_full |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_fullStr |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_full_unstemmed |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_short |
Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_sort |
mechanism of action of isothiocyanates: the induction of are-regulated genes is associated with activation of erk and jnk and the phosphorylation and nuclear translocation of nrf2 |
| topic |
Cancer Research Oncology |
| url |
http://dx.doi.org/10.1158/1535-7163.mct-05-0497 |
| publishDate |
2006 |
| physical |
1918-1926 |
| description |
<jats:title>Abstract</jats:title>
<jats:p>The up-regulation of phase II detoxifying and stress-responsive genes is believed to play an important role in cancer prevention, and many natural compounds have been shown to be potent inducers of these genes. Previous studies showed that the antioxidant responsive element (ARE), found in these genes, can be bound by the transcription factor Nrf2, and is responsive to the activation by chemopreventive compounds and by oxidative stress. In the present study, we investigated the roles of extracellular signal-regulated kinase (ERK) and c-Jun-NH2-kinase (JNK) in the regulation of phenethyl isothiocyanate (PEITC)–induced and Nrf2-dependent ARE activity and ARE-driven heme oxygenase-1 (HO-1) gene expression in PC-3 cells. ARE activity and HO-1 expression were strongly increased after treatment with PEITC. PEITC also increased the phosphorylation of ERK1/2 and JNK1/2 and caused release of Nrf2 from sequestration by Keap1, and its subsequent translocation into the nucleus. Importantly, Nrf2 was also translocated into the nucleus after transfection with ERK or JNK and that these activated ERK and JNK colocalized with Nrf2 in the nucleus. Activation of ERK and JNK signaling also resulted in the elevation of ARE activity and HO-1 expression. Importantly, PEITC-induced ARE activity was attenuated by inhibition of ERK and JNK signaling. In vitro kinase assays showed that both ERK2 and JNK1 could directly phosphorylate glutathione S-transferase–Nrf2 protein. Taken together, these results strongly suggest a model in which PEITC treatment of PC-3 cells activates ERK and JNK, which, in turn, phosphorylate Nrf2 and induce its translocation to the nucleus. Nuclear Nrf2 activates ARE elements and induces expression of stress-responsive genes, including HO-1. [Mol Cancer Ther 2006;5(8):1918–26]</jats:p> |
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| author | Xu, Changjiang, Yuan, Xiaoling, Pan, Zui, Shen, Guoxiang, Kim, Jung-Hwan, Yu, Siwang, Khor, Tin Oo, Li, Wenge, Ma, Jianjie, Kong, Ah-Ng Tony |
| author_facet | Xu, Changjiang, Yuan, Xiaoling, Pan, Zui, Shen, Guoxiang, Kim, Jung-Hwan, Yu, Siwang, Khor, Tin Oo, Li, Wenge, Ma, Jianjie, Kong, Ah-Ng Tony, Xu, Changjiang, Yuan, Xiaoling, Pan, Zui, Shen, Guoxiang, Kim, Jung-Hwan, Yu, Siwang, Khor, Tin Oo, Li, Wenge, Ma, Jianjie, Kong, Ah-Ng Tony |
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| description | <jats:title>Abstract</jats:title> <jats:p>The up-regulation of phase II detoxifying and stress-responsive genes is believed to play an important role in cancer prevention, and many natural compounds have been shown to be potent inducers of these genes. Previous studies showed that the antioxidant responsive element (ARE), found in these genes, can be bound by the transcription factor Nrf2, and is responsive to the activation by chemopreventive compounds and by oxidative stress. In the present study, we investigated the roles of extracellular signal-regulated kinase (ERK) and c-Jun-NH2-kinase (JNK) in the regulation of phenethyl isothiocyanate (PEITC)–induced and Nrf2-dependent ARE activity and ARE-driven heme oxygenase-1 (HO-1) gene expression in PC-3 cells. ARE activity and HO-1 expression were strongly increased after treatment with PEITC. PEITC also increased the phosphorylation of ERK1/2 and JNK1/2 and caused release of Nrf2 from sequestration by Keap1, and its subsequent translocation into the nucleus. Importantly, Nrf2 was also translocated into the nucleus after transfection with ERK or JNK and that these activated ERK and JNK colocalized with Nrf2 in the nucleus. Activation of ERK and JNK signaling also resulted in the elevation of ARE activity and HO-1 expression. Importantly, PEITC-induced ARE activity was attenuated by inhibition of ERK and JNK signaling. In vitro kinase assays showed that both ERK2 and JNK1 could directly phosphorylate glutathione S-transferase–Nrf2 protein. Taken together, these results strongly suggest a model in which PEITC treatment of PC-3 cells activates ERK and JNK, which, in turn, phosphorylate Nrf2 and induce its translocation to the nucleus. Nuclear Nrf2 activates ARE elements and induces expression of stress-responsive genes, including HO-1. [Mol Cancer Ther 2006;5(8):1918–26]</jats:p> |
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| imprint_str_mv | American Association for Cancer Research (AACR), 2006 |
| institution | DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1 |
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| physical | 1918-1926 |
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| spelling | Xu, Changjiang Yuan, Xiaoling Pan, Zui Shen, Guoxiang Kim, Jung-Hwan Yu, Siwang Khor, Tin Oo Li, Wenge Ma, Jianjie Kong, Ah-Ng Tony 1535-7163 1538-8514 American Association for Cancer Research (AACR) Cancer Research Oncology http://dx.doi.org/10.1158/1535-7163.mct-05-0497 <jats:title>Abstract</jats:title> <jats:p>The up-regulation of phase II detoxifying and stress-responsive genes is believed to play an important role in cancer prevention, and many natural compounds have been shown to be potent inducers of these genes. Previous studies showed that the antioxidant responsive element (ARE), found in these genes, can be bound by the transcription factor Nrf2, and is responsive to the activation by chemopreventive compounds and by oxidative stress. In the present study, we investigated the roles of extracellular signal-regulated kinase (ERK) and c-Jun-NH2-kinase (JNK) in the regulation of phenethyl isothiocyanate (PEITC)–induced and Nrf2-dependent ARE activity and ARE-driven heme oxygenase-1 (HO-1) gene expression in PC-3 cells. ARE activity and HO-1 expression were strongly increased after treatment with PEITC. PEITC also increased the phosphorylation of ERK1/2 and JNK1/2 and caused release of Nrf2 from sequestration by Keap1, and its subsequent translocation into the nucleus. Importantly, Nrf2 was also translocated into the nucleus after transfection with ERK or JNK and that these activated ERK and JNK colocalized with Nrf2 in the nucleus. Activation of ERK and JNK signaling also resulted in the elevation of ARE activity and HO-1 expression. Importantly, PEITC-induced ARE activity was attenuated by inhibition of ERK and JNK signaling. In vitro kinase assays showed that both ERK2 and JNK1 could directly phosphorylate glutathione S-transferase–Nrf2 protein. Taken together, these results strongly suggest a model in which PEITC treatment of PC-3 cells activates ERK and JNK, which, in turn, phosphorylate Nrf2 and induce its translocation to the nucleus. Nuclear Nrf2 activates ARE elements and induces expression of stress-responsive genes, including HO-1. [Mol Cancer Ther 2006;5(8):1918–26]</jats:p> Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 Molecular Cancer Therapeutics |
| spellingShingle | Xu, Changjiang, Yuan, Xiaoling, Pan, Zui, Shen, Guoxiang, Kim, Jung-Hwan, Yu, Siwang, Khor, Tin Oo, Li, Wenge, Ma, Jianjie, Kong, Ah-Ng Tony, Molecular Cancer Therapeutics, Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2, Cancer Research, Oncology |
| title | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_full | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_fullStr | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_full_unstemmed | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_short | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| title_sort | mechanism of action of isothiocyanates: the induction of are-regulated genes is associated with activation of erk and jnk and the phosphorylation and nuclear translocation of nrf2 |
| title_unstemmed | Mechanism of action of isothiocyanates: the induction of ARE-regulated genes is associated with activation of ERK and JNK and the phosphorylation and nuclear translocation of Nrf2 |
| topic | Cancer Research, Oncology |
| url | http://dx.doi.org/10.1158/1535-7163.mct-05-0497 |