PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation
Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Xiao-feng [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2018transfer abstract |
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| Schlagwörter: |
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| Umfang: |
7 |
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| Übergeordnetes Werk: |
Enthalten in: Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag - Zhang, Zhikun ELSEVIER, 2019, BBRC, Orlando, Fla |
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| Übergeordnetes Werk: |
volume:501 ; year:2018 ; number:1 ; day:18 ; month:06 ; pages:293-299 ; extent:7 |
| Links: |
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| DOI / URN: |
10.1016/j.bbrc.2018.05.003 |
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ELV043083943 |
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| 520 | |a Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. | ||
| 520 | |a Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. | ||
| 650 | 7 | |a UVR |2 Elsevier | |
| 650 | 7 | |a Retinal pigment epithelium cells |2 Elsevier | |
| 650 | 7 | |a Oxidative stress |2 Elsevier | |
| 650 | 7 | |a Nrf2 |2 Elsevier | |
| 650 | 7 | |a AMPK |2 Elsevier | |
| 650 | 7 | |a PF-06409577 |2 Elsevier | |
| 700 | 1 | |a Liu, Xiu-ming |4 oth | |
| 700 | 1 | |a Huang, Da-rui |4 oth | |
| 700 | 1 | |a Cao, Hai-jing |4 oth | |
| 700 | 1 | |a Wang, Jun-ying |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Academic Press |a Zhang, Zhikun ELSEVIER |t Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag |d 2019 |d BBRC |g Orlando, Fla |w (DE-627)ELV002811154 |
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10.1016/j.bbrc.2018.05.003 doi GBV00000000000234A.pica (DE-627)ELV043083943 (ELSEVIER)S0006-291X(18)31042-8 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Li, Xiao-feng verfasserin aut PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. UVR Elsevier Retinal pigment epithelium cells Elsevier Oxidative stress Elsevier Nrf2 Elsevier AMPK Elsevier PF-06409577 Elsevier Liu, Xiu-ming oth Huang, Da-rui oth Cao, Hai-jing oth Wang, Jun-ying oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 https://doi.org/10.1016/j.bbrc.2018.05.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 501 2018 1 18 0618 293-299 7 045F 570 |
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10.1016/j.bbrc.2018.05.003 doi GBV00000000000234A.pica (DE-627)ELV043083943 (ELSEVIER)S0006-291X(18)31042-8 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Li, Xiao-feng verfasserin aut PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. UVR Elsevier Retinal pigment epithelium cells Elsevier Oxidative stress Elsevier Nrf2 Elsevier AMPK Elsevier PF-06409577 Elsevier Liu, Xiu-ming oth Huang, Da-rui oth Cao, Hai-jing oth Wang, Jun-ying oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 https://doi.org/10.1016/j.bbrc.2018.05.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 501 2018 1 18 0618 293-299 7 045F 570 |
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10.1016/j.bbrc.2018.05.003 doi GBV00000000000234A.pica (DE-627)ELV043083943 (ELSEVIER)S0006-291X(18)31042-8 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Li, Xiao-feng verfasserin aut PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. UVR Elsevier Retinal pigment epithelium cells Elsevier Oxidative stress Elsevier Nrf2 Elsevier AMPK Elsevier PF-06409577 Elsevier Liu, Xiu-ming oth Huang, Da-rui oth Cao, Hai-jing oth Wang, Jun-ying oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 https://doi.org/10.1016/j.bbrc.2018.05.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 501 2018 1 18 0618 293-299 7 045F 570 |
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10.1016/j.bbrc.2018.05.003 doi GBV00000000000234A.pica (DE-627)ELV043083943 (ELSEVIER)S0006-291X(18)31042-8 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Li, Xiao-feng verfasserin aut PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. UVR Elsevier Retinal pigment epithelium cells Elsevier Oxidative stress Elsevier Nrf2 Elsevier AMPK Elsevier PF-06409577 Elsevier Liu, Xiu-ming oth Huang, Da-rui oth Cao, Hai-jing oth Wang, Jun-ying oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 https://doi.org/10.1016/j.bbrc.2018.05.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 501 2018 1 18 0618 293-299 7 045F 570 |
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10.1016/j.bbrc.2018.05.003 doi GBV00000000000234A.pica (DE-627)ELV043083943 (ELSEVIER)S0006-291X(18)31042-8 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Li, Xiao-feng verfasserin aut PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation 2018transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. UVR Elsevier Retinal pigment epithelium cells Elsevier Oxidative stress Elsevier Nrf2 Elsevier AMPK Elsevier PF-06409577 Elsevier Liu, Xiu-ming oth Huang, Da-rui oth Cao, Hai-jing oth Wang, Jun-ying oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 https://doi.org/10.1016/j.bbrc.2018.05.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 501 2018 1 18 0618 293-299 7 045F 570 |
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Enthalten in Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag Orlando, Fla volume:501 year:2018 number:1 day:18 month:06 pages:293-299 extent:7 |
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PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. 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pf-06409577 activates ampk signaling to protect retinal pigment epithelium cells from uv radiation |
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PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation |
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Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. |
| abstractGer |
Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. |
| abstract_unstemmed |
Ultra-violet (UV) radiation (UVR) to human retinas induces oxidative injury to the resident retinal pigment epithelium (RPE) cells. PF-06409577 a novel, potent and direct AMP-activated protein kinase (AMPK) activator. In ARPE-19 cells and primary murine RPE cells, PF-06409577 significantly inhibited UVR-induced viability reduction, cell death and apoptosis. PF-06409577 activated AMPK signaling in RPE cells by increasing AMPKα1-acetyl-CoA carboxylase phosphorylation and AMPK activity. AMPK inhibition, by AMPKα1-shRNA, -CRISPR/Cas9 knockout or -T172A dominant negative mutation, almost abolished PF-06409577-induced RPE cytoprotection against UVR. PF-06409577 enhanced nicotinamide adenine dinucleotide phosphate (NADPH) activity and expression levels of Nrf2-dependent genes in RPE cells. Furthermore, UVR-induced reactive oxygen species (ROS) production, lipid peroxidation and DNA damage were largely inhibited by the AMPK activator. In summary, PF-06409577 inhibits UVR-induced oxidative stress and RPE cell death by activating AMPK signaling. |
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PF-06409577 activates AMPK signaling to protect retinal pigment epithelium cells from UV radiation |
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Liu, Xiu-ming Huang, Da-rui Cao, Hai-jing Wang, Jun-ying |
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