Application of Multiplex PCR for Characterization of Human Embryonic Stem Cells (hESCs) and Its Differentiated Progenies

Mamidi, Murali Krishna and Pal, Rajarshi and Bhonde, Ramesh and Zakaria, Zubaidah and Totey, Satish (2010) Application of Multiplex PCR for Characterization of Human Embryonic Stem Cells (hESCs) and Its Differentiated Progenies. Journal of Biomolecular Screening, 15 (6). pp. 630-643. ISSN 1552-454X

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Abstract

Techniques to evaluate gene expression profiling, including real-time quantitative PCR , TaqMan® low-density arrays, and sufficiently sensitive cDNA microarrays, are efficient methods for monitoring human embryonic stem cell (hESC ) cultures. However, most of these high-throughput tests have a limited use due to high cost, extended turnaround time, and the involvement of highly specialized technical expertise. Hence, there is a paucity of rapid, cost effective, robust, yet sensitive methods for routine screening of hESC s. A critical requirement in hESC cultures is to maintain a uniform undifferentiated state and to determine their differentiation capacity by showing the expression of gene markers representing all germ layers, including ecto-, meso-, and endoderm. To quantify the modulation of gene expression in hESC s during their propagation, expansion, and differentiation via embryoid body (EB ) formation, the authors developed a simple, rapid, inexpensive, and definitive multimarker, semiquantitative multiplex RT -PCR (mxPCR ) platform technology. Among the 15 gene primers tested, 4 were pluripotent markers comprising set 1, and 3 lineage-specific markers from each ecto-, meso-, and endoderm layers were combined as sets 2 to 4, respectively. The authors found that these 4 sets were not only effective in determining the relative differentiation in hESC s, but were easily reproducible. In this study, they used the HUES -7 cell line to standardize the technique, which was subsequently validated with HUES -9, NTERA -2, and mouse embryonic fibroblast cells. This single-reaction mxPCR assay was flexible and, by selecting appropriate reporter genes, can be designed for characterization of different hESC lines during routine maintenance and directed differentiation.

Item Type: Article
Additional Information: Copyright of this article is belongs to Sage Publications.
Uncontrolled Keywords: human embryonic stem cells (hESC);embryoid body (EB); multiplex PCR (mxPCR);molecular characterization; pluripotency;differentiation.
Subjects: Regenerative Medicine > MIRM Bangalore
Depositing User: MCON Library
Date Deposited: 20 Mar 2012 06:47
Last Modified: 20 Mar 2012 06:47
URI: http://eprints.manipal.edu/id/eprint/3517

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