Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System
Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also c...
Ausführliche Beschreibung
Autor*in: |
Spina, Mary Beth [verfasserIn] Squinto, Stephen P. [verfasserIn] Miller, James [verfasserIn] |
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E-Artikel |
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Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1992 |
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Online-Ressource |
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Reproduktion: |
2006 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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Übergeordnetes Werk: |
In: Journal of neurochemistry - Oxford : Wiley-Blackwell, 1956, 59(1992), 1, Seite 0 |
Übergeordnetes Werk: |
volume:59 ; year:1992 ; number:1 ; pages:0 |
Links: |
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DOI / URN: |
10.1111/j.1471-4159.1992.tb08880.x |
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520 | |a Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. | ||
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10.1111/j.1471-4159.1992.tb08880.x doi (DE-627)NLEJ240255917 DE-627 ger DE-627 rakwb Spina, Mary Beth verfasserin aut Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System Oxford, UK Blackwell Publishing Ltd 1992 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Neurotrophic factor Squinto, Stephen P. verfasserin aut Miller, James verfasserin aut Lindsay, Ronald M. oth Hyman, Carolyn oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 59(1992), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:59 year:1992 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 59 1992 1 0 |
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10.1111/j.1471-4159.1992.tb08880.x doi (DE-627)NLEJ240255917 DE-627 ger DE-627 rakwb Spina, Mary Beth verfasserin aut Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System Oxford, UK Blackwell Publishing Ltd 1992 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Neurotrophic factor Squinto, Stephen P. verfasserin aut Miller, James verfasserin aut Lindsay, Ronald M. oth Hyman, Carolyn oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 59(1992), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:59 year:1992 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 59 1992 1 0 |
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10.1111/j.1471-4159.1992.tb08880.x doi (DE-627)NLEJ240255917 DE-627 ger DE-627 rakwb Spina, Mary Beth verfasserin aut Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System Oxford, UK Blackwell Publishing Ltd 1992 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Neurotrophic factor Squinto, Stephen P. verfasserin aut Miller, James verfasserin aut Lindsay, Ronald M. oth Hyman, Carolyn oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 59(1992), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:59 year:1992 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 59 1992 1 0 |
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10.1111/j.1471-4159.1992.tb08880.x doi (DE-627)NLEJ240255917 DE-627 ger DE-627 rakwb Spina, Mary Beth verfasserin aut Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System Oxford, UK Blackwell Publishing Ltd 1992 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Neurotrophic factor Squinto, Stephen P. verfasserin aut Miller, James verfasserin aut Lindsay, Ronald M. oth Hyman, Carolyn oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 59(1992), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:59 year:1992 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 59 1992 1 0 |
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10.1111/j.1471-4159.1992.tb08880.x doi (DE-627)NLEJ240255917 DE-627 ger DE-627 rakwb Spina, Mary Beth verfasserin aut Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System Oxford, UK Blackwell Publishing Ltd 1992 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Neurotrophic factor Squinto, Stephen P. verfasserin aut Miller, James verfasserin aut Lindsay, Ronald M. oth Hyman, Carolyn oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 59(1992), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:59 year:1992 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 59 1992 1 0 |
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Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System |
abstract |
Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. |
abstractGer |
Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. |
abstract_unstemmed |
Brain-derived neurotrophic factor (BDNF) has recently been shown to enhance the survival of dopamine neurons in cultures derived from the embryonic rat mesencephalon. We now extend this study by demonstrating that, in addition to the effect of sustaining survival of dopaminergic neurons, BDNF also confers protection against the neurotoxic effects of 6-hydroxydopamine (6-OHDA) and N-methyl-4-phenylpyridinium ion (MPP+). Exposure of mesencephalic cultures to either 6-OHDA or MPP+ resulted in a loss of 70–80% of dopaminergic neurons, as determined by tyrosine hydroxylase (TH) immunocytochemistry. In BDNF-treated cultures, loss of TH-positive cells after exposure to either toxin was reduced to only 30%. To facilitate biochemical measurements, we studied SH-SY5Y dopaminergic neuroblastoma cells. BDNF was found to protect these cells from the dopaminergic neurotoxins, 6-OHDA and MPP+. Indicative of oxidative stress, treatment of SH-SY5Y cells with 10 μM 6-OHDA for 24 h caused a fivefold increase in the levels of oxidized glutathione (GSSG). Pre-treatment with BDNF for 24 h completely prevented the rise in GSSG. Further examination revealed that BDNF increased the activity of the protective enzyme, glutathione reductase, by 100%. In contrast, BDNF had no effect on the activity of catalase. These results add further impetus to exploring the therapeutic potential of BDNF in animal models of Parkinson's disease. |
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title_short |
Brain-Derived Neurotrophic Factor Protects Dopamine Neurons Against 6-Hydroxydopamine and N-Methyl-4-Phenylpyridinium Ion Toxicity: Involvement of the Glutathione System |
url |
http://dx.doi.org/10.1111/j.1471-4159.1992.tb08880.x |
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author2 |
Squinto, Stephen P. Miller, James Lindsay, Ronald M. Hyman, Carolyn |
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Squinto, Stephen P. Miller, James Lindsay, Ronald M. Hyman, Carolyn |
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doi_str |
10.1111/j.1471-4159.1992.tb08880.x |
up_date |
2024-07-06T09:29:21.709Z |
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score |
7.402128 |