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Three-dimensional cell models for extracellular vesicles production, isolation, and characterization.

Liliia Paniushkina1, Elena Grueso-Navarro1, Xu Cheng2

  • 1Institute for Infection Prevention and Hospital Epidemiology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Methods in Enzymology
|February 10, 2021
PubMed
Summary

This study introduces a 3D cell culture model using 3D CoSeedis™ inserts for studying extracellular vesicles (EVs) in cancer. This method offers serum-free conditions and easy EV recovery for more physiological research.

Keywords:
Cell models for EV researchExtracellular vesiclesThree-dimensional cell model

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Cancer Research

Background:

  • Extracellular vesicles (EVs) are crucial in cancer progression.
  • Current EV studies predominantly use 2D cultures, which do not reflect physiological tissue architecture.
  • There is a need for advanced in vitro models that mimic 3D tissue environments for accurate EV functional studies.

Purpose of the Study:

  • To present a protocol for a 3D cell model using 3D CoSeedis™ agarose inserts.
  • To enable long-term cell culture under serum-free conditions for studying EVs.
  • To facilitate easy recovery of EVs from 3D cultures for functional analysis.

Main Methods:

  • Development of a 3D cell culture protocol utilizing 3D CoSeedis™ agarose inserts.
  • Implementation of serum-free culture conditions suitable for various cell types.
  • Establishment of protocols for model evaluation and quality control.

Main Results:

  • A reproducible 3D cell model for long-term cell culture was established.
  • The model allows for straightforward extracellular vesicle (EV) recovery.
  • Optimized culture conditions for different cell lines within the 3D system were detailed.

Conclusions:

  • The 3D CoSeedis™ model provides a more physiologically relevant platform for studying extracellular vesicle functions in cancer.
  • This model supports serum-free conditions and efficient EV recovery, advancing EV research.
  • The protocol aims to improve the accuracy and applicability of in vitro EV studies.