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Related Experiment Videos

A lesson from earthquake engineering for selectively damaging cancer cell structures.

Massimiliano Fraldi1, Arsenio Cutolo1, Angelo Rosario Carotenuto1

  • 1Department of Structures for Engineering and Architecture, University of Napoli Federico II, Italy.

Journal of the Mechanical Behavior of Biomedical Materials
|April 25, 2021
PubMed
Summary

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This study explores using mechanical resonance and ultrasounds to selectively destroy cancer cells by exploiting stiffness differences. Findings suggest targeted vibration can induce fatigue in cancer cell structures, offering a new precise medicine approach.

Area of Science:

  • Interdisciplinary research bridging physics, engineering, computer science, and molecular biology.
  • Focus on oncophysics and the role of mechanobiology in cancer treatment.

Background:

  • Cancer diagnosis and treatment benefit from interdisciplinary collaboration.
  • Ultrasound therapy for cancer faces challenges in delivering mechanical energy effectively and safely.
  • Exploiting stiffness differences between tumor and healthy cells is a promising strategy.

Purpose of the Study:

  • Investigate the frequency response of cell populations to understand mechanical resonance and vibration-induced failure.
  • Explore selective destruction of cancer cells within a mixed population using mechanical vibrations.
  • Assess the potential of therapeutic ultrasounds for targeted cancer cell destruction.

Main Methods:

  • Simulated harmonic response of a close-packing of polyhedral cells using Finite Element analysis.
Keywords:
Cancer cellsSelective attackTensegrityTumor spheroidUltrasound

Related Experiment Videos

  • Modeled cell cytoskeleton as a nonlinear soft-tensegrity structure.
  • Analyzed vibration-induced failure phenomena in coexisting tumor and healthy cells.

    • Main Results:

    • Mechanical resonance and fatigue cycles can be selectively induced in cancer cells at therapeutic ultrasound frequencies.
    • The effect is dependent on the global volume fraction of cancer cells.
    • Findings align with the theoretical exploitation of stiffness discrepancies between cell types.

    Conclusions:

    • Selective destruction of cancer cells via mechanical resonance is feasible.
    • Therapeutic ultrasound frequencies can be tuned to target cancer cell mechanobiology.
    • This research paves the way for novel, engineered cancer treatment protocols.