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Interactions between curcumin and cell membrane models by Langmuir monolayers.

María Pedrosa1, Julia Maldonado-Valderrama1, María José Gálvez-Ruiz1

  • 1Biocolloids and Fluid Physics Group, Department of Applied Physics, University of Granada, Campus Fuente Nueva, s/n, C.P. 18071, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Cuesta del Hospicio, s/n, C.P. 18010, Granada, Spain.

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|June 23, 2022
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Summary

Curcumin interacts differently with healthy and cancerous cell membranes. This natural compound destabilizes tumor cell membranes, offering potential for targeted anticancer drug development with fewer side effects.

Keywords:
Atomic Force MicroscopyBrewster Angle MicroscopyCell membrane modelCompressibilityCurcuminLangmuir monolayers

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Area of Science:

  • Biochemistry
  • Materials Science
  • Pharmacology

Background:

  • Understanding drug-cell membrane interactions is crucial for developing effective anticancer treatments.
  • Lipid membrane models provide insights into cellular interactions and drug mechanisms of action.

Purpose of the Study:

  • To investigate the interaction of curcumin, a natural compound with anticancer properties, with models of healthy and cancerous cell membranes.
  • To compare curcumin's effects on lipid membrane models with varying compositions.

Main Methods:

  • Utilized Langmuir monolayers to model healthy and cancerous cell membranes with distinct lipid compositions.
  • Analyzed compression isotherms, compression moduli, and thermodynamic parameters.
  • Employed micro-Brewster Angle and Atomic Force Microscopy for visualization.

Main Results:

  • Curcumin exhibited a destabilizing interaction with the cancerous cell membrane model.
  • In contrast, curcumin enhanced cohesion in the healthy cell membrane model.
  • Curcumin fluidified the cancerous cell membrane, leading to thermodynamic destabilization.

Conclusions:

  • Curcumin's differential interaction with healthy versus cancerous cell membranes suggests potential for selective anticancer therapy.
  • These findings could aid in developing targeted therapies with reduced adverse effects.