Journal
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
Volume 92, Issue 3, Pages 482-493Publisher
WILEY
DOI: 10.1002/jctb.5074
Keywords
long-term PSC expansion; neural commitment; peptide-acrylate surface microcarriers; pluripotency; scalable PSC culture
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT), Portugal, through iBB - Institute for Bioengineering and Biosciences [UID/BIO/04565/2013]
- FCT [SFRH/BPD/74449/2010, SFRH/BPD/86316/2012, SFRH/BD/78758/2011, SFRH/BPD/82056/2011]
- State of North Rhine-Westphalia
- German Federal Ministry of Education and Research (BMBF)
- European Union's Seventh Framework Program (FP7)
- Colipa company
- EFPIA company (StemCellFactory II) [005-1403-0102]
- EFPIA company (IntegraMent) [01ZX1314A]
- EFPIA company (EBISC) [115582]
- EFPIA company (SCRTox) [266753]
- EFPIA company (Neurostemcellrepair) [602278]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/78758/2011] Funding Source: FCT
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BACKGROUND: Human induced pluripotent stem (hiPS) cells provide a fascinating tool for exploring disease mechanisms, compoundscreening inpharmaceuticaldrugdevelopment, andmight also represent a renewable source of cells for regenerative medicine applications. This requires increased cell quantities, generated under Good Manufacturing Practice-compatible conditions in a scalable system. RESULTS: A microcarrier-based suspension culture was explored for scaling-up hiPS cell expansion in serum-free medium using synthetic peptide-acrylate surface microcarriers, developed for long-term support of hiPS cell self-renewal. After a 7 day-culture in a spinner flask, cells maintained their typical morphology, pluripotency-associated marker expression and their differentiation capability. Envisaging improvement of the scalability of the culture, long-term expansion on the microcarriers was attained using confluent microcarriers as the inoculum of successive spinner flask cultures. Importantly, bead-to-bead cell transfer allowed four consecutive sub-culture procedures and a cumulative 241-fold expansion was achieved within 15 days, leading to a total viable cell number of 3.3x10(8) cells. CONCLUSION: Thiswork is expected to enable the scale-up of hiPS cell culture under defined conditions and potentially leading to the use of pluripotent stem cell derivatives in cell replacement therapies. (C) 2016 Society of Chemical Industry
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