Encapsulating non-human primate multipotent stromal cells in alginate via high voltage for cell-based therapies and cryopreservation

PLoS One. 2014 Sep 26;9(9):e107911. doi: 10.1371/journal.pone.0107911. eCollection 2014.

Abstract

Alginate cell-based therapy requires further development focused on clinical application. To assess engraftment, risk of mutations and therapeutic benefit studies should be performed in an appropriate non-human primate model, such as the common marmoset (Callithrix jacchus). In this work we encapsulated amnion derived multipotent stromal cells (MSCs) from Callithrix jacchus in defined size alginate beads using a high voltage technique. Our results indicate that i) alginate-cell mixing procedure and cell concentration do not affect the diameter of alginate beads, ii) encapsulation of high cell numbers (up to 10×106 cells/ml) can be performed in alginate beads utilizing high voltage and iii) high voltage (15-30 kV) does not alter the viability, proliferation and differentiation capacity of MSCs post-encapsulation compared with alginate encapsulated cells produced by the traditional air-flow method. The consistent results were obtained over the period of 7 days of encapsulated MSCs culture and after cryopreservation utilizing a slow cooling procedure (1 K/min). The results of this work show that high voltage encapsulation can further be maximized to develop cell-based therapies with alginate beads in a non-human primate model towards human application.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alginates*
  • Animals
  • Cell Culture Techniques*
  • Cell Differentiation
  • Cell Proliferation
  • Cell Survival
  • Cell- and Tissue-Based Therapy*
  • Cryopreservation*
  • Glucuronic Acid
  • Hexuronic Acids
  • Immunophenotyping
  • Mesenchymal Stem Cells / cytology*
  • Mesenchymal Stem Cells / metabolism
  • Phenotype
  • Primates

Substances

  • Alginates
  • Hexuronic Acids
  • Glucuronic Acid

Grants and funding

This work was supported by Deutsche Forschungsgemeinschaft (DFG - German Research Foundation, http://www.dfg.de/) by the Cluster of Excellence REBIRTH (DFG EXC 62/1, http://www.rebirth-hannover.de) and Open Access Publishing Fund of Leibniz Universitaet Hannover. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.