A xenogeneic-free bioreactor system for the clinical-scale expansion of human mesenchymal stem/stromal cells

Authors

  • Francisco dos Santos,

    1. Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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    • The present address of Francisco dos Santos and Pedro Z. Andrade: Cell2b—Advanced Therapeutics, SA, Biocant Park, Cantanhede, Portugal.
  • Andrew Campbell,

    1. Life Technologies Corp., Carlsbad, California
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  • Ana Fernandes-Platzgummer,

    1. Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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  • Pedro Z. Andrade,

    1. Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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    • The present address of Francisco dos Santos and Pedro Z. Andrade: Cell2b—Advanced Therapeutics, SA, Biocant Park, Cantanhede, Portugal.
  • Jeffrey M. Gimble,

    1. New Orleans BioInnovation Center, LA and Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana
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  • Yuan Wen,

    1. Life Technologies Corp., Carlsbad, California
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  • Shayne Boucher,

    1. Life Technologies Corp., Carlsbad, California
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  • Mohan C. Vemuri,

    1. Life Technologies Corp., Carlsbad, California
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  • Cláudia L. da Silva,

    1. Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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  • Joaquim M.S. Cabral

    Corresponding author
    1. Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
    • Correspondence to: J.M.S. Cabral

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Errata

This article is corrected by:

  1. Errata: A xenogeneic-free bioreactor system for the clinical-scale expansion of human mesenchymal stem/stromal cells Volume 112, Issue 3, 644, Article first published online: 29 January 2015

ABSTRACT

The large cell doses (>1 × 106 cells/kg) used in clinical trials with mesenchymal stem/stromal cells (MSC) will require an efficient production process. Moreover, monitoring and control of MSC ex-vivo expansion is critical to provide a safe and reliable cell product. Bioprocess engineering approaches, such as bioreactor technology, offer the adequate tools to develop and optimize a cost-effective culture system for the rapid expansion of human MSC for cellular therapy. Herein, a xenogeneic (xeno)-free microcarrier-based culture system was successfully established for bone marrow (BM) MSC and adipose tissue-derived stem/stromal cell (ASC) cultivation using a 1L-scale controlled stirred-tank bioreactor, allowing the production of (1.1 ± 0.1) × 108 and (4.5 ± 0.2) × 107 cells for BM MSC and ASC, respectively, after 7 days. Additionally, the effect of different percent air saturation values (%Airsat) and feeding regime on the proliferation and metabolism of BM MSC was evaluated. No significant differences in cell growth and metabolic patterns were observed under 20% and 9%Airsat. Also, the three different feeding regimes studied—(i) 25% daily medium renewal, (ii) 25% medium renewal every 2 days, and (iii) fed-batch addition of concentrated nutrients and growth factors every 2 days—yielded similar cell numbers, and only slight metabolic differences were observed. Moreover, the immunophenotype (positive for CD73, CD90 and CD105 and negative for CD31, CD80 and HLA-DR) and multilineage differentiative potential of expanded cells were not affected upon bioreactor culture. These results demonstrated the feasibility of expanding human MSC from different sources in a clinically relevant expansion configuration in a controlled microcarrier-based stirred culture system under xeno-free conditions. The further optimization of this bioreactor culture system will represent a crucial step towards an efficient GMP-compliant clinical-scale MSC production system. Biotechnol. Bioeng. 2014;111: 1116–1127. © 2014 Wiley Periodicals, Inc.

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