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Drug Development.

Murillo Orsatto Haas1, Francielli Alana Pereira2, Drielli Rhiane Peres Colhado Arêas2

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Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025
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Summary
This summary is machine-generated.

New terpenoid derivatives show promise for Alzheimer's disease treatment. These natural compounds exhibit neuroprotective effects against oxidative, inflammatory, and excitotoxic insults in central nervous system cells, suggesting a potential multitarget therapy approach.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Natural Product Chemistry

Background:

  • Alzheimer's disease (AD) is a progressive neurodegenerative disorder causing dementia worldwide.
  • AD's complexity involves synergistic insults to central nervous system (CNS) cells and structures, leading to cognitive decline.
  • Multitarget therapies using natural compounds are sought for AD.

Purpose of the Study:

  • To evaluate terpenoid derivatives from the Asteraceae family for potential Alzheimer's disease therapy.
  • To assess drug-like properties, including blood-brain barrier (BBB) permeability and oral bioavailability.
  • To determine cytotoxicity and cytoprotective effects against CNS insults.

Main Methods:

  • In silico analysis using SwissADME and ADMETLab 3.0 for drug-like properties.
  • Cytotoxicity assays on VERO, HT22 (hippocampal neurons), and C6-astroglial cells.
  • Evaluation of cytoprotective capacity against inflammatory, oxidative, and glutamatergic insults in neuronal and glial cells.

Main Results:

  • Two out of five compounds showed potential BBB permeability; three had high gastrointestinal absorption potential.
  • All compounds exhibited low cytotoxicity with IC₅₀ values >50 µM.
  • Compounds demonstrated significant protection against inflammatory (at 6.25 µM), oxidative (at 3.125 µM), and glutamatergic (at 3.125 µM) insults.

Conclusions:

  • Terpenoid derivatives possess favorable drug-like properties, including BBB permeability and oral bioavailability.
  • Compounds show low toxicity and significant neuroprotective effects against multiple AD-relevant insults.
  • These natural compounds offer a promising foundation for multitarget Alzheimer's disease therapy with a wide therapeutic window.