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Methylphenidate modulates the ınflammatory response and PI3K signaling in macrophages

Semanur Ercan1, Batuhan Yurtseven1, Ömer Mete Başkan1

  • 1Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Biruni University, Istanbul, 34010, Turkey.

Naunyn-Schmiedeberg'S Archives of Pharmacology
|January 22, 2026
PubMed

Insights

Methylphenidate (MPH) suppresses inflammatory cytokines and modulates phosphoinositide 3-kinase (PI3K) signaling in macrophages. This suggests MPH may treat neuroinflammatory disorders by reducing inflammation.

Area of Science:

  • Immunology
  • Neuroscience
  • Pharmacology

Background:

  • Neuroinflammation is implicated in various neurological disorders.
  • Methylphenidate (MPH) is a stimulant medication with potential immunomodulatory effects.
  • The phosphoinositide 3-kinase (PI3K) pathway plays a critical role in immune cell function and inflammation.

Purpose of the Study:

  • To investigate the immunomodulatory effects of MPH on inflammatory responses.
  • To determine MPH's impact on the PI3K signaling pathway in macrophages.
  • To explore MPH's therapeutic potential for neuroinflammatory conditions.

Main Methods:

  • J774.2 murine macrophages were treated with MPH (1-10 μg/mL) with or without lipopolysaccharide (LPS).
  • Cytokine levels (TNF-α, IL-6, IL-12p40, GM-CSF) were measured using ELISA.
  • Intracellular PI3K pathway activation was assessed by flow cytometry.

Main Results:

  • MPH significantly suppressed TNF-α, IL-6, and IL-12p40 in a dose-dependent manner.
  • GM-CSF suppression was observed at higher MPH concentrations.
  • MPH modulated PI3K signaling in LPS-stimulated macrophages.

Conclusions:

  • MPH exhibits potent anti-inflammatory properties by reducing key cytokines.
  • MPH influences the PI3K pathway, suggesting a complex immunomodulatory mechanism.
  • MPH demonstrates therapeutic potential for neuroinflammatory disorders via dual anti-inflammatory and signaling pathway modulation.
Keywords:
CytokineInflammationLPSMPHMacrophage cellsPI3K pathway

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