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Automated mechanical passaging: a novel and efficient method for human embryonic stem cell expansion

Joannides, Alexis, Fiore-Hériché, Christelle, Westmore, Kristine, Caldwell, Maeve, Compston, Alastair, Allen, Nicholas Denby and Chandran, Siddharthan 2006. Automated mechanical passaging: a novel and efficient method for human embryonic stem cell expansion. Stem Cells 24 (2) , pp. 230-235. 10.1634/stemcells.2005-0243

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There is a need for more standardized methods of maintenance and propagation of human embryonic stem cell (hESC) cultures. Enzymatic passaging currently represents the most widely used method for expansion of hESCs. Although rapid and straightforward, this technique results in variable-sized cell clusters and significant cellular trauma, which may apply selective pressure in long-term culture. Mechanical passaging has the potential advantages of defined colony fragment sizes, reduced cellular trauma, and the possibility of selecting undifferentiated colonies for transfer. However, manual dissection of individual colonies is a prohibitively time-consuming process unsuitable for maintaining large numbers of hESCs without the use of additional chemical means. In this study we report an efficient automated method for mechanically passaging hESCs. We have used this method exclusively to maintain hESCs in long-term undifferentiated culture without the use of enzymatic digestion for longer than 100 days. This automated technique can thus be used routinely to culture hESCs in the laboratory.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Neuroscience and Mental Health Research Institute (NMHRI)
Subjects: Q Science > Q Science (General)
Uncontrolled Keywords: Human embryonic stem cells; Automated mechanical passaging; Expansion.
Publisher: Wiley
ISSN: 1066-5099
Last Modified: 04 Jun 2017 06:34

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