Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver
Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Choi, Hee Yoon [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
12 |
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| Übergeordnetes Werk: |
Enthalten in: Ambiguous information and dilation: An experiment - Shishkin, Denis ELSEVIER, 2023, a journal of molecular and biochemical toxicology, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:245 ; year:2016 ; day:5 ; month:02 ; pages:110-121 ; extent:12 |
| Links: |
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| DOI / URN: |
10.1016/j.cbi.2015.06.024 |
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| 520 | |a Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. | ||
| 520 | |a Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. | ||
| 650 | 7 | |a tBHP |2 Elsevier | |
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10.1016/j.cbi.2015.06.024 doi GBVA2016020000007.pica (DE-627)ELV035548827 (ELSEVIER)S0009-2797(15)00255-0 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 330 VZ 31.00 bkl 83.10 bkl Choi, Hee Yoon verfasserin aut Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver 2016transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. tBHP Elsevier DMSO Elsevier DTT Elsevier HO-1 Elsevier PARP Elsevier MTT Elsevier Rh123 Elsevier DCFH-DA Elsevier DMEM Elsevier OXY Elsevier GCLC Elsevier PEG Elsevier ARE Elsevier Nrf2 Elsevier PMSF Elsevier FBS Elsevier GSTA2 Elsevier ROS Elsevier PI Elsevier GSH Elsevier ERK Elsevier Lee, Ju-Hee oth Jegal, Kyung Hwan oth Cho, Il Je oth Kim, Young Woo oth Kim, Sang Chan oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:245 year:2016 day:5 month:02 pages:110-121 extent:12 https://doi.org/10.1016/j.cbi.2015.06.024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 245 2016 5 0205 110-121 12 045F 570 |
| spelling |
10.1016/j.cbi.2015.06.024 doi GBVA2016020000007.pica (DE-627)ELV035548827 (ELSEVIER)S0009-2797(15)00255-0 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 330 VZ 31.00 bkl 83.10 bkl Choi, Hee Yoon verfasserin aut Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver 2016transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. tBHP Elsevier DMSO Elsevier DTT Elsevier HO-1 Elsevier PARP Elsevier MTT Elsevier Rh123 Elsevier DCFH-DA Elsevier DMEM Elsevier OXY Elsevier GCLC Elsevier PEG Elsevier ARE Elsevier Nrf2 Elsevier PMSF Elsevier FBS Elsevier GSTA2 Elsevier ROS Elsevier PI Elsevier GSH Elsevier ERK Elsevier Lee, Ju-Hee oth Jegal, Kyung Hwan oth Cho, Il Je oth Kim, Young Woo oth Kim, Sang Chan oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:245 year:2016 day:5 month:02 pages:110-121 extent:12 https://doi.org/10.1016/j.cbi.2015.06.024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 245 2016 5 0205 110-121 12 045F 570 |
| allfields_unstemmed |
10.1016/j.cbi.2015.06.024 doi GBVA2016020000007.pica (DE-627)ELV035548827 (ELSEVIER)S0009-2797(15)00255-0 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 330 VZ 31.00 bkl 83.10 bkl Choi, Hee Yoon verfasserin aut Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver 2016transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. tBHP Elsevier DMSO Elsevier DTT Elsevier HO-1 Elsevier PARP Elsevier MTT Elsevier Rh123 Elsevier DCFH-DA Elsevier DMEM Elsevier OXY Elsevier GCLC Elsevier PEG Elsevier ARE Elsevier Nrf2 Elsevier PMSF Elsevier FBS Elsevier GSTA2 Elsevier ROS Elsevier PI Elsevier GSH Elsevier ERK Elsevier Lee, Ju-Hee oth Jegal, Kyung Hwan oth Cho, Il Je oth Kim, Young Woo oth Kim, Sang Chan oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:245 year:2016 day:5 month:02 pages:110-121 extent:12 https://doi.org/10.1016/j.cbi.2015.06.024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 245 2016 5 0205 110-121 12 045F 570 |
| allfieldsGer |
10.1016/j.cbi.2015.06.024 doi GBVA2016020000007.pica (DE-627)ELV035548827 (ELSEVIER)S0009-2797(15)00255-0 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 330 VZ 31.00 bkl 83.10 bkl Choi, Hee Yoon verfasserin aut Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver 2016transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. tBHP Elsevier DMSO Elsevier DTT Elsevier HO-1 Elsevier PARP Elsevier MTT Elsevier Rh123 Elsevier DCFH-DA Elsevier DMEM Elsevier OXY Elsevier GCLC Elsevier PEG Elsevier ARE Elsevier Nrf2 Elsevier PMSF Elsevier FBS Elsevier GSTA2 Elsevier ROS Elsevier PI Elsevier GSH Elsevier ERK Elsevier Lee, Ju-Hee oth Jegal, Kyung Hwan oth Cho, Il Je oth Kim, Young Woo oth Kim, Sang Chan oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:245 year:2016 day:5 month:02 pages:110-121 extent:12 https://doi.org/10.1016/j.cbi.2015.06.024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 245 2016 5 0205 110-121 12 045F 570 |
| allfieldsSound |
10.1016/j.cbi.2015.06.024 doi GBVA2016020000007.pica (DE-627)ELV035548827 (ELSEVIER)S0009-2797(15)00255-0 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 330 VZ 31.00 bkl 83.10 bkl Choi, Hee Yoon verfasserin aut Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver 2016transfer abstract 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. tBHP Elsevier DMSO Elsevier DTT Elsevier HO-1 Elsevier PARP Elsevier MTT Elsevier Rh123 Elsevier DCFH-DA Elsevier DMEM Elsevier OXY Elsevier GCLC Elsevier PEG Elsevier ARE Elsevier Nrf2 Elsevier PMSF Elsevier FBS Elsevier GSTA2 Elsevier ROS Elsevier PI Elsevier GSH Elsevier ERK Elsevier Lee, Ju-Hee oth Jegal, Kyung Hwan oth Cho, Il Je oth Kim, Young Woo oth Kim, Sang Chan oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:245 year:2016 day:5 month:02 pages:110-121 extent:12 https://doi.org/10.1016/j.cbi.2015.06.024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 245 2016 5 0205 110-121 12 045F 570 |
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Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver |
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Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. |
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Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. |
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Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV035548827</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230625204643.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">180603s2016 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.cbi.2015.06.024</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">GBVA2016020000007.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV035548827</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0009-2797(15)00255-0</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">570</subfield><subfield code="a">540</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">570</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">540</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">330</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">31.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">83.10</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Choi, Hee Yoon</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Oxyresveratrol abrogates oxidative stress by activating ERK–Nrf2 pathway in the liver</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2016transfer abstract</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">12</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. 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Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Oxyresveratrol is a polyphenolic phytoalexin produced by plants as an antioxidant. This study investigated the hepatoprotective effects of oxyresveratrol as well as its underlying mechanism of action. Here, we evaluated the protective effects of oxyresveratrol against tert-butyl hydroperoxide (tBHP)-induced severe oxidative stress in HepG2 cells as well as acute liver injury caused by carbon tetrachloride (CCl4) in mice. tBHP-induced reactive oxygen species production and cell death in hepatocytes were blocked by oxyresveratrol, as indicated by MTT, TUNEL, and FACS analyses. Moreover, pretreatment with oxyresveratrol increased nuclear translocation and transactivation of NF-E2-related factor 2 (Nrf2), as assessed by antioxidant response element reporter gene expression and immunofluorescence staining, and transactivated expression of both hemeoxygenase-1 and glutamate–cysteine ligase catalytic subunit. More importantly, oxyresveratrol induced phosphorylation of Nrf2 mediated through activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Further, ERK inhibitors such as PD98059 and U0126 blocked phosphorylation of Nrf2 as well as the protective effect of oxyresveratrol in mitochondria. In mice, oral administration of oxyresveratrol significantly prevented hepatocyte degeneration, inflammatory cell infiltration, as well as elevation of plasma markers such as ALT and AST induced by CCl4 injection. In conclusion, this study confirmed that oxyresveratrol protected hepatocytes against oxidative stress and mitochondrial dysfunction, which might be associated with activation of Nrf2.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">tBHP</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">DMSO</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">DTT</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">HO-1</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">PARP</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">MTT</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield 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