Bioprocessing of human mesenchymal stem cells: From planar culture to microcarrier-based bioreactors

Ang Chen Tsai, Christina A. Pacak

Research output: Contribution to journalReview articlepeer-review


Human mesenchymal stem cells (hMSCs) have demonstrated great potential to be used as therapies for many types of diseases. Due to their immunoprivileged status, allogeneic hMSCs therapies are particularly attractive options and methodologies to improve their scaling and manufacturing are needed. Microcarrier-based bioreactor systems provide higher volumetric hMSC production in automated closed systems than conventional planar cultures. However, more sophisticated bioprocesses are necessary to successfully convert from planar culture to microcarriers. This article summarizes key steps involved in the planar culture to microcarrier hMSC manufacturing scheme, from seed train, inoculation, expansion and harvest. Important bioreactor parameters, such as temperature, pH, dissolved oxygen (DO), mixing, feeding strategies and cell counting techniques, are also discussed.

Original languageEnglish (US)
Article number96
Issue number7
StatePublished - Jul 7 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.


  • Bioprocess
  • Bioreactor
  • Cell counting
  • Cell expansion
  • HMSC
  • Human mesenchymal stem cell
  • Microcarrier

PubMed: MeSH publication types

  • Journal Article
  • Review


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