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Curved Magnetic Hydrogels for Understanding Cancer Initiation.

Ana C Manjua1,2, Christian M Verkerk1, Burcu Gumuscu1,2,3

  • 1Biosensors and Devices Lab, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands.

ACS Applied Materials & Interfaces
|August 28, 2025
PubMed
Summary
This summary is machine-generated.

Magnetic hydrogels and low-intensity magnetic fields alter cancer cell behavior and gene expression, offering a new tool to study tissue curvature in cancer progression. This approach shows selectivity for cancer cells over healthy cells.

Keywords:
MDA-MB-231 breast cancer cellsNHDF dermal fibroblastscancer cell dynamicscurved scaffoldmagnetic nanoparticlesmagnetic scaffoldpolyacrylamide

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Area of Science:

  • Biomaterials Science
  • Cancer Biology
  • Cellular Mechanics

Background:

  • Tissue curvature influences cancer cell dynamics, but research is limited by inadequate tools.
  • Understanding how curved tissues drive cancer progression is crucial for developing new therapies.

Purpose of the Study:

  • To investigate the effects of dynamic tissue curvature on metastatic breast cancer cells using magnetic hydrogels.
  • To assess changes in cancer cell phenotype and gene expression under controlled magnetic stimulation.

Main Methods:

  • Fabrication of magnetic Acrylamide hydrogel (MACrylamide) constructs.
  • Application of low-intensity (100 mT) external magnetic fields to induce dynamic curvature.
  • Culture of MDA-MB-231 breast cancer cells and NHDF fibroblasts on MACrylamide scaffolds.
  • Analysis of cell area, phenotype, and gene expression (NMO1, OCT4, SOX4).

Main Results:

  • Magnetic stimulation significantly reduced cancer cell area from 55% to 33%.
  • Magnetic hydrogels and fields altered gene expression related to anti-inflammatory responses, proliferation, and metastasis.
  • The approach demonstrated selectivity, impacting cancer cells more than healthy fibroblasts.

Conclusions:

  • Dynamic tissue curving, simulated by magnetic hydrogels and fields, influences cancer cell behavior and gene expression.
  • This biocompatible system provides a novel tool for studying cancer progression in curved tissue environments.
  • The findings highlight the importance of dynamic curvature in carcinogenesis and suggest potential therapeutic avenues.