Cited by 41Pharmacological Receptor Mechanisms and EffectsNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Methylphenidate Enhances NMDA-Receptor Response in Medial Prefrontal Cortex via Sigma-1 Receptor: A Novel Mechanism for Methylphenidate Action

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Zhang, Chun-Lei, Feng, Ze-Jun, Liu, Yue, Ji, Xiao-Hua, Peng, Ji-Yun, Zhang, Xue-Han, Zhen, Xue-Chu, Li, Bao-Ming·2012·PLoS ONE

Abstract

Methylphenidate (MPH), commercially called Ritalin or Concerta, has been widely used as a drug for Attention Deficit Hyperactivity Disorder (ADHD). Noteworthily, growing numbers of young people using prescribed MPH improperly for pleasurable enhancement, take high risk of addiction. Thus, understanding the mechanism underlying high level of MPH action in the brain becomes an important goal nowadays. As a blocker of catecholamine transporters, its therapeutic effect is explained as being due to proper modulation of D1 and α2A receptor. Here we showed that higher dose of MPH facilitates NMDA-receptor mediated synaptic transmission via a catecholamine-independent mechanism, in layer V∼VI pyramidal cells of the rat medial prefrontal cortex (PFC). To indicate its postsynaptic action, we next found that MPH facilitates NMDA-induced current and such facilitation could be blocked by σ1 but not D1/5 and α2 receptor antagonists. And this MPH eliciting enhancement of NMDA-receptor activity involves PLC, PKC and IP3 receptor mediated intracellular Ca(2+) increase, but does not require PKA and extracellular Ca(2+) influx. Our additional pharmacological studies confirmed that higher dose of MPH increases locomotor activity via interacting with σ1 receptor. Together, the present study demonstrates for the first time that MPH facilitates NMDA-receptor mediated synaptic transmission via σ1 receptor, and such facilitation requires PLC/IP3/PKC signaling pathway. This novel mechanism possibly explains the underlying mechanism for MPH induced addictive potential and other psychiatric side effects.

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  • MPH modulates several other proteins including adrenergic, DA and glutamate receptors (ADRA2A, ADRA2B, ADRB1, DRD1, DRD5, DRD2, GRIA1).

    “First, other NT pathways have been reported to be stimulated by MPH, including adrenergic, DA and glutamate receptors (e.g. alpha-2A adrenergic receptor [ADRA2A] and alpha-2B adrenergic receptor [ADRA2B], beta-1 adrenergic receptor [ADRB1], DA receptor 1A [DRD1], DA receptor 1B [DRD5], DA receptor 2 [DRD2]) and glutamate receptor 1 (GRIA1) [142–144].”

    From Molecular Characterisation of the Mechanism of Action of Stimulant Drugs Lisdexamfetamine and Methylphenidate on ADHD Neurobiology: A Review (2022) · cites this paper as [142]

    The Introduction (page unavailable) reports MPH-related activation of α2 and D1 receptors and discusses possible α1 and β1 involvement. The Results (page unavailable) show that MPH enhances NMDA-receptor responses, but that this effect is not directly mediated by D1/5 or α2 receptors. The paper does not establish stimulation of every receptor named in the claim, particularly α2B, D2, or GRIA1; its glutamate-receptor finding concerns NMDA receptors. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • In PFC neurons, MPH indirectly activates the postsynaptic DRD1 and DRD5 that uptake DA and transmit the signal in postsynaptic neurons.

    “In PFC neurons, MPH indirectly activates the postsynaptic DRD1 and DRD5 [142] that uptake DA and transmit the signal in postsynaptic neurons [175].”

    From Molecular Characterisation of the Mechanism of Action of Stimulant Drugs Lisdexamfetamine and Methylphenidate on ADHD Neurobiology: A Review (2022) · cites this paper as [142]

    The Introduction says MPH indirectly activates D1 receptors in PFC neurons. It does not establish indirect activation of D5 receptors or identify D1 and D5 as postsynaptic receptors in this claim; the Results instead identify postsynaptic σ1 signaling in the NMDA-receptor response. The later statement about dopamine uptake carries a different citation and is not assessed here. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

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Authors
Zhang, C.-L., Feng, Z.-J., Liu, Y., Ji, X.-H., Peng, J.-Y., Zhang, X.-H., Zhen, X.-C., & Li, B.-M.
Affiliations
  • Fudan University (CN)
  • Chinese Academy of Sciences (CN)
  • Nanchang University (CN)
Corresponding author
Li, Bao-Ming
Venue
PLoS ONE
Published
2012-12-20
Volume
7
Issue
12
Pages
e51910
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2009896968
Cited by
41
References
15
Citations by year
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FWCI
1.67
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (30821002, 30700218, 30990263)
  • Chinese Academy of Sciences
  • Fudan University
  • State Key Laboratory of Medical Neurobiology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pharmacological Receptor Mechanisms and Effects
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
methylphenidate, sigma-1 receptor, NMDA receptor, medial prefrontal cortex, synaptic transmission, intracellular calcium, locomotor activity, attention deficit hyperactivity disorder, drug addiction, dopamine D1 receptor, alpha2A-adrenergic receptor
MeSH terms
Sigma-1 Receptor, Central Nervous System Stimulants, Animals, Calcium, Catecholamines, Methylphenidate, Motor Activity, Synaptic Transmission, Protein Binding, Protein Kinase C, Synapses, Signal Transduction, Receptors, N-Methyl-D-Aspartate, Prefrontal Cortex, Receptors, sigma, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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