Biomanufacturing and Scale-Up of Clinical-Grade Induced Pluripotent Stem Cell Lines

Authors

  • Ahlberg G Department of Neuroscience, Karolinska Institute, Stockholm, Sweden Author
  • Conti C Department of Cell and Tissue Engineering, Sapienza University of Rome, Rome, Italy Author
  • Szabo R Department of Tissue Banking and Cell Therapy, University of Debrecen, Debrecen, Hungary Author

DOI:

https://doi.org/10.5281/zenodo.22274707

Keywords:

Induced pluripotent stem cells; Biomanufacturing; Bioreactor expansion; Genomic stability; Good manufacturing practice

Abstract

Graphical abstract

Background: Clinical use of induced pluripotent stem cells depends on manufacturing lines that regulators accept as starting
material and expanding them reproducibly to the numbers dosing schedules demand.
Objective: To identify where the binding constraints on clinical-grade production now sit, across expansion, genomic
stability, residual undifferentiated cell testing and sourcing strategy.
Methods: Narrative review of bioprocess studies, genomic stability screens, release-testing reports and regulatory guidance.
Findings: Perfused stirred-tank culture reached 35 x 10^6 cells mL^-1 and 5.25 x 10^9 cells per 150 mL run in 7 days.
Screening 136 lines from 38 laboratories found a 20q11.21 amplicon in more than 20%. Digital PCR detects residual
undifferentiated cells at 0.001%. Autologous manufacture cost approximately US$1 million per case.
Conclusions: Evidence supports litre-scale expansion as a solved engineering problem. It does not support terminal
karyotype as adequate stability control, and sourcing strategy, not bioprocess, dominates cost

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Graphical abstract

Published

2025-09-05

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Section

Articles

How to Cite

Biomanufacturing and Scale-Up of Clinical-Grade Induced Pluripotent Stem Cell Lines. (2025). Annals of Stem Cell Research, 8(1), 51-58. https://doi.org/10.5281/zenodo.22274707