Cited by 49Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingNeurotransmitter Receptor Influence on Behavior

Low-Dose Aspirin Upregulates Tyrosine Hydroxylase and Increases Dopamine Production in Dopaminergic Neurons: Implications for Parkinson’s disease

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Rangasamy, Suresh B., Dasarathi, Sridevi, Pahan, Priyanka, Jana, Malabendu, Pahan, Kalipada·2019·Journal of Neuroimmune Pharmacology

Abstract

Increasing the function of residual dopaminergic neurons in the nigra of PD patients is an important area of research as it may eventually compensate the loss. Although tyrosine hydroxylase (TH) is the rate-limiting enzyme in the dopamine (DA) biosynthesis pathway, there are no effective drugs/molecules to upregulate TH and increase the production of DA in nigral dopaminergic neurons. This study underlines the importance of aspirin in stimulating the expression of TH and increasing the level of DA in dopaminergic neurons. At low doses, aspirin increased the expression of TH and the production of DA in mouse MN9D dopaminergic neuronal cells. Accordingly, oral administration of aspirin increased the expression of TH in the nigra and upregulated the level of DA in striatum of normal C57/BL6 mice and aged A53T α-syn transgenic mice. Oral aspirin also improved locomotor activities of normal mice and A53T transgenic mice. While investigating mechanisms, we found the presence of cAMP response element (CRE) in the promoter of TH gene and the rapid induction of cAMP response element binding (CREB) activation by aspirin in dopaminergic neuronal cells. Aspirin treatment also increased the level of phospho-CREB in the nigra of C57/BL6 mice. The abrogation of aspirin-induced expression of TH by siRNA knockdown of CREB and the recruitment of CREB to the TH gene promoter by aspirin suggest that aspirin stimulates the transcription of TH in dopaminergic neurons via CREB. These results highlight a new property of aspirin in stimulating the TH-DA pathway, which may be beneficial in PD patients. Graphical Abstract ᅟ.

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  • CREB is directly involved in regulating TH expression in PD.

    “Among the mechanisms related to exercise-dependent neuroplasticity, CREB is directly involved in regulating TH expression in PD [193,194].”

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Authors
Rangasamy, S. B., Dasarathi, S., Pahan, P., Jana, M., & Pahan, K.
Affiliations
Rush University Medical Center (US)
Corresponding author
Pahan, Kalipada
Venue
Journal of Neuroimmune Pharmacology
Published
2018-09-05
Volume
14
Issue
2
Pages
173-187
ISSN
  • 1557-1890 (ISSN-L)
  • 1557-1904
OpenAlex
W2892271175
Cited by
49
References
45
Citations by year
2026: 2 · 2025: 7 · 2024: 6 · 2023: 8 · 2022: 2 · 2021: 14 · 2020: 4 · 2019: 4 · 2018: 2
FWCI
4.08
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroimmune Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Veterans Affairs (I01BX002174, I01BX003033)
  • National Institutes of Health (NS083054)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
low-dose aspirin, tyrosine hydroxylase, dopamine synthesis, dopaminergic neurons, Parkinson's disease, CREB, cAMP response element, gene transcription, substantia nigra, striatum, locomotor activity, MN9D cells
MeSH terms
Animals, Anti-Inflammatory Agents, Non-Steroidal, Aspirin, Cell Line, Dopamine, Mice, Inbred C57BL, Mice, Transgenic, Motor Activity, Parkinson Disease, Tyrosine 3-Monooxygenase, Transcriptional Activation, Up-Regulation, Cyclic AMP Response Element-Binding Protein, RNA, Small Interfering, Mice, alpha-Synuclein, Dopaminergic Neurons

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