A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation
Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to e...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Hallak, Maher [verfasserIn] Vazana, Liat [verfasserIn] Shpilberg, Ofer [verfasserIn] Levy, Itai [verfasserIn] Mazar, Julia [verfasserIn] Nathan, Ilana [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2007 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Apoptosis - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996, 13(2007), 1 vom: 04. Dez., Seite 147-155 |
|---|---|
| Übergeordnetes Werk: |
volume:13 ; year:2007 ; number:1 ; day:04 ; month:12 ; pages:147-155 |
| Links: |
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| DOI / URN: |
10.1007/s10495-007-0156-7 |
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| Katalog-ID: |
SPR010492291 |
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| 245 | 1 | 2 | |a A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation |
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| 520 | |a Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. | ||
| 650 | 4 | |a Apoptosis |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Mimosine |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Mitochondria |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Reactive oxygen species |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Vazana, Liat |e verfasserin |4 aut | |
| 700 | 1 | |a Shpilberg, Ofer |e verfasserin |4 aut | |
| 700 | 1 | |a Levy, Itai |e verfasserin |4 aut | |
| 700 | 1 | |a Mazar, Julia |e verfasserin |4 aut | |
| 700 | 1 | |a Nathan, Ilana |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Apoptosis |d Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 |g 13(2007), 1 vom: 04. Dez., Seite 147-155 |w (DE-627)306311577 |w (DE-600)1495863-6 |x 1573-675X |7 nnns |
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| 912 | |a GBV_ILN_2034 | ||
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| 912 | |a GBV_ILN_2039 | ||
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| 912 | |a GBV_ILN_2048 | ||
| 912 | |a GBV_ILN_2049 | ||
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| 912 | |a GBV_ILN_2057 | ||
| 912 | |a GBV_ILN_2059 | ||
| 912 | |a GBV_ILN_2061 | ||
| 912 | |a GBV_ILN_2064 | ||
| 912 | |a GBV_ILN_2065 | ||
| 912 | |a GBV_ILN_2068 | ||
| 912 | |a GBV_ILN_2070 | ||
| 912 | |a GBV_ILN_2086 | ||
| 912 | |a GBV_ILN_2088 | ||
| 912 | |a GBV_ILN_2093 | ||
| 912 | |a GBV_ILN_2106 | ||
| 912 | |a GBV_ILN_2107 | ||
| 912 | |a GBV_ILN_2108 | ||
| 912 | |a GBV_ILN_2110 | ||
| 912 | |a GBV_ILN_2111 | ||
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| 912 | |a GBV_ILN_2122 | ||
| 912 | |a GBV_ILN_2129 | ||
| 912 | |a GBV_ILN_2143 | ||
| 912 | |a GBV_ILN_2144 | ||
| 912 | |a GBV_ILN_2147 | ||
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10.1007/s10495-007-0156-7 doi (DE-627)SPR010492291 (SPR)s10495-007-0156-7-e DE-627 ger DE-627 rakwb eng 570 ASE 44.00 bkl Hallak, Maher verfasserin aut A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. Apoptosis (dpeaa)DE-He213 Mimosine (dpeaa)DE-He213 Mitochondria (dpeaa)DE-He213 Reactive oxygen species (dpeaa)DE-He213 Vazana, Liat verfasserin aut Shpilberg, Ofer verfasserin aut Levy, Itai verfasserin aut Mazar, Julia verfasserin aut Nathan, Ilana verfasserin aut Enthalten in Apoptosis Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 13(2007), 1 vom: 04. Dez., Seite 147-155 (DE-627)306311577 (DE-600)1495863-6 1573-675X nnns volume:13 year:2007 number:1 day:04 month:12 pages:147-155 https://dx.doi.org/10.1007/s10495-007-0156-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.00 ASE AR 13 2007 1 04 12 147-155 |
| spelling |
10.1007/s10495-007-0156-7 doi (DE-627)SPR010492291 (SPR)s10495-007-0156-7-e DE-627 ger DE-627 rakwb eng 570 ASE 44.00 bkl Hallak, Maher verfasserin aut A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. Apoptosis (dpeaa)DE-He213 Mimosine (dpeaa)DE-He213 Mitochondria (dpeaa)DE-He213 Reactive oxygen species (dpeaa)DE-He213 Vazana, Liat verfasserin aut Shpilberg, Ofer verfasserin aut Levy, Itai verfasserin aut Mazar, Julia verfasserin aut Nathan, Ilana verfasserin aut Enthalten in Apoptosis Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 13(2007), 1 vom: 04. Dez., Seite 147-155 (DE-627)306311577 (DE-600)1495863-6 1573-675X nnns volume:13 year:2007 number:1 day:04 month:12 pages:147-155 https://dx.doi.org/10.1007/s10495-007-0156-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.00 ASE AR 13 2007 1 04 12 147-155 |
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10.1007/s10495-007-0156-7 doi (DE-627)SPR010492291 (SPR)s10495-007-0156-7-e DE-627 ger DE-627 rakwb eng 570 ASE 44.00 bkl Hallak, Maher verfasserin aut A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. Apoptosis (dpeaa)DE-He213 Mimosine (dpeaa)DE-He213 Mitochondria (dpeaa)DE-He213 Reactive oxygen species (dpeaa)DE-He213 Vazana, Liat verfasserin aut Shpilberg, Ofer verfasserin aut Levy, Itai verfasserin aut Mazar, Julia verfasserin aut Nathan, Ilana verfasserin aut Enthalten in Apoptosis Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 13(2007), 1 vom: 04. Dez., Seite 147-155 (DE-627)306311577 (DE-600)1495863-6 1573-675X nnns volume:13 year:2007 number:1 day:04 month:12 pages:147-155 https://dx.doi.org/10.1007/s10495-007-0156-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.00 ASE AR 13 2007 1 04 12 147-155 |
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10.1007/s10495-007-0156-7 doi (DE-627)SPR010492291 (SPR)s10495-007-0156-7-e DE-627 ger DE-627 rakwb eng 570 ASE 44.00 bkl Hallak, Maher verfasserin aut A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. Apoptosis (dpeaa)DE-He213 Mimosine (dpeaa)DE-He213 Mitochondria (dpeaa)DE-He213 Reactive oxygen species (dpeaa)DE-He213 Vazana, Liat verfasserin aut Shpilberg, Ofer verfasserin aut Levy, Itai verfasserin aut Mazar, Julia verfasserin aut Nathan, Ilana verfasserin aut Enthalten in Apoptosis Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 13(2007), 1 vom: 04. Dez., Seite 147-155 (DE-627)306311577 (DE-600)1495863-6 1573-675X nnns volume:13 year:2007 number:1 day:04 month:12 pages:147-155 https://dx.doi.org/10.1007/s10495-007-0156-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.00 ASE AR 13 2007 1 04 12 147-155 |
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10.1007/s10495-007-0156-7 doi (DE-627)SPR010492291 (SPR)s10495-007-0156-7-e DE-627 ger DE-627 rakwb eng 570 ASE 44.00 bkl Hallak, Maher verfasserin aut A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation 2007 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. Apoptosis (dpeaa)DE-He213 Mimosine (dpeaa)DE-He213 Mitochondria (dpeaa)DE-He213 Reactive oxygen species (dpeaa)DE-He213 Vazana, Liat verfasserin aut Shpilberg, Ofer verfasserin aut Levy, Itai verfasserin aut Mazar, Julia verfasserin aut Nathan, Ilana verfasserin aut Enthalten in Apoptosis Dordrecht [u.a.] : Springer Science + Business Media B.V, 1996 13(2007), 1 vom: 04. Dez., Seite 147-155 (DE-627)306311577 (DE-600)1495863-6 1573-675X nnns volume:13 year:2007 number:1 day:04 month:12 pages:147-155 https://dx.doi.org/10.1007/s10495-007-0156-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.00 ASE AR 13 2007 1 04 12 147-155 |
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Enthalten in Apoptosis 13(2007), 1 vom: 04. Dez., Seite 147-155 volume:13 year:2007 number:1 day:04 month:12 pages:147-155 |
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Apoptosis Mimosine Mitochondria Reactive oxygen species |
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Apoptosis |
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Hallak, Maher @@aut@@ Vazana, Liat @@aut@@ Shpilberg, Ofer @@aut@@ Levy, Itai @@aut@@ Mazar, Julia @@aut@@ Nathan, Ilana @@aut@@ |
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Hallak, Maher |
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molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation |
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A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation |
| abstract |
Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. |
| abstractGer |
Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. |
| abstract_unstemmed |
Abstract Mimosine, a non-protein amino acid, is mainly known for its action as a reversible inhibitor of DNA replication and, therefore, has been widely used as a cell cycle synchronizing agent. Recently, it has been shown that mimosine also induces apoptosis, as mainly reflected in its ability to elicit characteristic nuclear changes. The present study elucidates the mechanism underlying mimosine’s apoptotic effects, using the U-937 leukemia cell line. We now demonstrate that in isolated rat liver mitochondria, mimosine induces mitochondrial swelling that can be inhibited by cyclosporine A, indicative of permeability transition (PT) mega-channel opening. Mimosine-induced apoptosis was accompanied by formation of hydrogen peroxide and a decrease in reduced glutathione levels. The apoptotic process was partially inhibited by cyclosporine A and substantially blocked by the antioxidant N-acetylcysteine, suggesting an essential role for reactive oxygen species formation during the apoptotic processes. The apoptosis induced by mimosine was also accompanied by a decrease in mitochondrial membrane potential, cytochrome c release and caspase 3 and 9 activation. Our results thus imply that mimosine activates apoptosis through mitochondrial activation and formation of $ H_{2} %$ O_{2} $, both of which play functional roles in the induction of cell death. |
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A molecular mechanism for mimosine-induced apoptosis involving oxidative stress and mitochondrial activation |
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https://dx.doi.org/10.1007/s10495-007-0156-7 |
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Vazana, Liat Shpilberg, Ofer Levy, Itai Mazar, Julia Nathan, Ilana |
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2024-07-03T16:28:21.263Z |
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| score |
7.4016075 |