Cited by 634Parkinson's Disease Mechanisms and TreatmentsPolyamine Metabolism and ApplicationsNeurotransmitter Receptor Influence on Behavior

Monoamine oxidase inactivation: from pathophysiology to therapeutics

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Bortolato, Marco, Chen, Kevin, Shih, Jean C.·2008·Advanced Drug Delivery Reviews

Abstract

Monoamine oxidases (MAOs) A and B are mitochondrial bound isoenzymes which catalyze the oxidative deamination of dietary amines and monoamine neurotransmitters, such as serotonin, norepinephrine, dopamine, beta-phenylethylamine and other trace amines. The rapid degradation of these molecules ensures the proper functioning of synaptic neurotransmission and is critically important for the regulation of emotional behaviors and other brain functions. The byproducts of MAO-mediated reactions include several chemical species with neurotoxic potential, such as hydrogen peroxide, ammonia and aldehydes. As a consequence, it is widely speculated that prolonged excessive activity of these enzymes may be conducive to mitochondrial damages and neurodegenerative disturbances. In keeping with these premises, the development of MAO inhibitors has led to important breakthroughs in the therapy of several neuropsychiatric disorders, ranging from mood disorders to Parkinson's disease. Furthermore, the characterization of MAO knockout (KO) mice has revealed that the inactivation of this enzyme produces a number of functional and behavioral alterations, some of which may be harnessed for therapeutic aims. In this article, we discuss the intriguing hypothesis that the attenuation of the oxidative stress induced by the inactivation of either MAO isoform may contribute to both antidepressant and antiparkinsonian actions of MAO inhibitors. This possibility further highlights MAO inactivation as a rich source of novel avenues in the treatment of mental disorders.

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Crossref · 10.1016/j.addr.2008.06.002

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  • The degrading function of MAOA and MAOB is essential for maintenance of synaptic transmission and thus proper motor control, emotional regulation, and cognitive function.

    “This degrading function of MAOA and MAOB is essential for the maintenance of synaptic transmission and thus proper motor control, emotional regulation, and cognitive function (122).”

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Authors
Bortolato, M., Chen, K., & Shih, J. C.
Affiliations
University of Southern California (US)
Corresponding author
Shih, Jean C.
Venue
Advanced Drug Delivery Reviews
Publisher
Elsevier BV
Published
2008-10
Volume
60
Issue
13-14
Pages
1527-1533
ISSN
0169-409X (ISSN-L)
OpenAlex
W1982235280
Cited by
634
References
97
Citations by year
2026: 30 · 2025: 40 · 2024: 43 · 2023: 49 · 2022: 42 · 2021: 47 · 2020: 45 · 2019: 42 · 2018: 32 · 2017: 33 · 2016: 25 · 2015: 30 · 2014: 34 · 2013: 35 · 2012: 38
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Advanced Drug Delivery Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
National Institute of Mental Health (R37MH039085, R01 MH67968, R01MH067968, R37 MH-39085)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Polyamine Metabolism and Applications
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
monoamine oxidase, monoamine oxidase A, monoamine oxidase B, monoamine oxidase inhibitors, monoamines, oxidative stress, neurotoxicity, mitochondrial damage, neurodegeneration, antidepressant effects, antiparkinsonian effects, mood disorders, Parkinson's disease, serotonin, norepinephrine, dopamine
MeSH terms
Alzheimer Disease, Animals, Anxiety Disorders, Attention Deficit Disorder with Hyperactivity, Tourette Syndrome, Humans, Isoenzymes, Mitochondria, Monoamine Oxidase, Monoamine Oxidase Inhibitors, Parkinson Disease, Mice, Knockout, Mice

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