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Related Experiment Video

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PEI-Fe3O4 Nanoparticles for Human Amniotic Epithelial Cells Labeling

Dian-Bao Zhang1, Ying Li1, Hang Su2

  • 1Department of Stem Cells and Regenerative Medicine,College of Basic Medical Sciences,Shenyang 110122,China.

Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
|November 11, 2017
PubMed
Summary

Polyethyleneimine-iron oxide (PEI-Fe3O4) nanoparticles effectively label human amniotic epithelial cells (hAECs) with 91% efficiency. These nanoparticles show no significant cytotoxicity at working concentrations, making them suitable for cell labeling applications.

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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Nanotechnology

Background:

  • Human amniotic epithelial cells (hAECs) are crucial for regenerative medicine.
  • Efficient and safe cell labeling is essential for tracking and therapeutic applications.
  • Iron oxide nanoparticles offer magnetic properties for potential imaging and therapeutic uses.

Purpose of the Study:

  • To evaluate the efficacy and safety of polyethyleneimine-coated iron oxide (PEI-Fe3O4) nanoparticles for labeling hAECs.
  • To characterize the physical properties of PEI-Fe3O4 nanoparticles.
  • To determine the optimal concentration for labeling hAECs with minimal cytotoxicity.

Main Methods:

  • PEI-Fe3O4 nanoparticles characterized using transmission electron microscopy and dynamic light scattering.
  • hAECs labeled with nanoparticles; labeling efficiency assessed via Prussian blue staining.
  • Cell survival and viability evaluated using placenta blue staining and CCK-8 assay.

Main Results:

  • PEI-Fe3O4 nanoparticles are compact spheres (13 nm size, 17.56 nm hydrodynamic radius, +34.5 mV zeta potential).
  • Labeling efficiency reached 91% for hAECs at PEI-Fe3O4 concentrations > 20 μg/ml.
  • Significant reduction in cell survival and viability observed at 50 and 100 μg/ml concentrations.

Conclusions:

  • PEI-Fe3O4 nanoparticles are effective for labeling hAECs.
  • The working concentration of PEI-Fe3O4 nanoparticles demonstrates minimal cytotoxicity.
  • These nanoparticles show promise for safe and efficient hAEC labeling in biomedical applications.