Methamphetamine-induced dopaminergic neurotoxicity

Role of peroxynitrite and neuroprotective role of antioxidants and peroxynitrite decomposition catalysts

Syed Z. Imam, Jamal El-Yazal, Glenn D. Newport, Yossef Itzhak, Jean L. Cadet, William Slikker, Syed F. Ali

Research output: Contribution to journalArticle

145 Citations (Scopus)

Abstract

Oxidative stress, reactive oxygen (ROS), and nitrogen (RNS) species have been known to be involved in a multitude of neurodegenerative disorders such as Parkinson's disease (PD), Alzheimer's disease (AD), and amyotrophic lateral sclerosis (ALS). Both ROS and RNS have very short half-lives, thereby making their identification very difficult as a specific cause of neurodegeneration. Recently, we have developed a high performance liquid chromatography/etectrochemical detection (HPLC/EC) method to identify 3-nitrotyrosine (3-NT), an in vitro and in vivo biomarker of peroxynitrite production, in cell cultures and brain to evaluate if an agent-driven neurotoxicity is produced by the generation of peroxynitrite. We show that a single or multiple injections of methamphetamine (METH) produced a significant increase in the formation of 3-NT in the striatum. This formation of 3-NT correlated with the striatal dopamine depletion caused by METH administration. We also show that PC12 cells treated with METH has significantly increased formation of 3-NT and dopamine depletion. Furthermore, we report that pretreatment with antioxidants such as selenium and melatonin can completety protect against the formation of 3-NT and depletion of striatal dopamine. We also report that pretreatment with peroxynitrite decomposition catalysts such as 5, 10, 15, 20-tetrakis(N-methyl-4′-pyridyl)porphyrinato iron III (FeTMPyP) and 5, 10, 15, 20-tetrakis (2,4,6-trimethyl-3,5-sulfonatophenyl) porphinato iron III (FETPPS) significantly protect against METH-induced 3-NT formation and striatal dopamine depletion. We used two different approaches, pharmacological manipulation and transgenic animal models, in order to further investigate the role of peroxynitrite. We show that a selective neuronal nitric oxide synthase (nNOS) inhibitor, 7-nitroindazole (7-NI), significantly protect against the formation of 3-NT as well as striatal dopamine depletion. Similar results were observed with nNOS knockout and copper zinc superoxide dismutase (CuZnSOD)-overexpressed transgenic mice models. Finally, using the protein data bank crystal structure of tyrosine hydroxylase, we postulate the possible nitration of specific tyrosine moiety in the enzyme that can be responsible for dopaminergic neurotoxicity. Together, these data clearly support the hypothesis that the reactive nitrogen species, peroxynitrite, plays a major role in METH-induced dopaminergic neurotoxicity and that selective antioxidants and peroxynitrite decomposition catalysts can protect against METH-induced neurotoxicity. These antioxidants and decomposition catalysts may have therapeutic potential in the treatment of psychostimulant addictions.

Original languageEnglish
Pages (from-to)366-380
Number of pages15
JournalAnnals of the New York Academy of Sciences
Volume939
StatePublished - Jul 18 2001

Fingerprint

Peroxynitrous Acid
Methamphetamine
Antioxidants
Corpus Striatum
Decomposition
Catalysts
Dopamine
Nitric Oxide Synthase Type I
Nitration
Reactive Nitrogen Species
Genetically Modified Animals
Oxidative stress
PC12 Cells
Amyotrophic Lateral Sclerosis
Tyrosine 3-Monooxygenase
High performance liquid chromatography
Biomarkers
Melatonin
Selenium
3-nitrotyrosine

Keywords

  • Antioxidant
  • Decomposition catalysts
  • Dopaminergic neurotoxicity
  • Methamphetamine
  • Peroxynitrite

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Methamphetamine-induced dopaminergic neurotoxicity : Role of peroxynitrite and neuroprotective role of antioxidants and peroxynitrite decomposition catalysts. / Imam, Syed Z.; El-Yazal, Jamal; Newport, Glenn D.; Itzhak, Yossef; Cadet, Jean L.; Slikker, William; Ali, Syed F.

In: Annals of the New York Academy of Sciences, Vol. 939, 18.07.2001, p. 366-380.

Research output: Contribution to journalArticle

Imam, Syed Z. ; El-Yazal, Jamal ; Newport, Glenn D. ; Itzhak, Yossef ; Cadet, Jean L. ; Slikker, William ; Ali, Syed F. / Methamphetamine-induced dopaminergic neurotoxicity : Role of peroxynitrite and neuroprotective role of antioxidants and peroxynitrite decomposition catalysts. In: Annals of the New York Academy of Sciences. 2001 ; Vol. 939. pp. 366-380.
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T2 - Role of peroxynitrite and neuroprotective role of antioxidants and peroxynitrite decomposition catalysts

AU - Imam, Syed Z.

AU - El-Yazal, Jamal

AU - Newport, Glenn D.

AU - Itzhak, Yossef

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AU - Ali, Syed F.

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N2 - Oxidative stress, reactive oxygen (ROS), and nitrogen (RNS) species have been known to be involved in a multitude of neurodegenerative disorders such as Parkinson's disease (PD), Alzheimer's disease (AD), and amyotrophic lateral sclerosis (ALS). Both ROS and RNS have very short half-lives, thereby making their identification very difficult as a specific cause of neurodegeneration. Recently, we have developed a high performance liquid chromatography/etectrochemical detection (HPLC/EC) method to identify 3-nitrotyrosine (3-NT), an in vitro and in vivo biomarker of peroxynitrite production, in cell cultures and brain to evaluate if an agent-driven neurotoxicity is produced by the generation of peroxynitrite. We show that a single or multiple injections of methamphetamine (METH) produced a significant increase in the formation of 3-NT in the striatum. This formation of 3-NT correlated with the striatal dopamine depletion caused by METH administration. We also show that PC12 cells treated with METH has significantly increased formation of 3-NT and dopamine depletion. Furthermore, we report that pretreatment with antioxidants such as selenium and melatonin can completety protect against the formation of 3-NT and depletion of striatal dopamine. We also report that pretreatment with peroxynitrite decomposition catalysts such as 5, 10, 15, 20-tetrakis(N-methyl-4′-pyridyl)porphyrinato iron III (FeTMPyP) and 5, 10, 15, 20-tetrakis (2,4,6-trimethyl-3,5-sulfonatophenyl) porphinato iron III (FETPPS) significantly protect against METH-induced 3-NT formation and striatal dopamine depletion. We used two different approaches, pharmacological manipulation and transgenic animal models, in order to further investigate the role of peroxynitrite. We show that a selective neuronal nitric oxide synthase (nNOS) inhibitor, 7-nitroindazole (7-NI), significantly protect against the formation of 3-NT as well as striatal dopamine depletion. Similar results were observed with nNOS knockout and copper zinc superoxide dismutase (CuZnSOD)-overexpressed transgenic mice models. Finally, using the protein data bank crystal structure of tyrosine hydroxylase, we postulate the possible nitration of specific tyrosine moiety in the enzyme that can be responsible for dopaminergic neurotoxicity. Together, these data clearly support the hypothesis that the reactive nitrogen species, peroxynitrite, plays a major role in METH-induced dopaminergic neurotoxicity and that selective antioxidants and peroxynitrite decomposition catalysts can protect against METH-induced neurotoxicity. These antioxidants and decomposition catalysts may have therapeutic potential in the treatment of psychostimulant addictions.

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