Human Molecular Genetics Advance Access published online on January 28, 2004
Human Molecular Genetics, doi:10.1093/hmg/ddh068
© 2004 by Oxford University Press
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1 Center for Reproductive Sciences; Department of Obstetrics, Gynecology and Reproductive Sciences, University of California at San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0546, USA; Departments of Physiology and Urology; Programs in Human Genetics, Cancer Genetics, University of California at San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0546, USA; Developmental and Stem Cell Biology; University of California at San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0546, USA
* To whom correspondence should be addressed. E-mail: Reijo{at}itsa.ucsf.edu.
Human embryonic stem cells (hESCs) have the potential to differentiate to diverse cell types. This ability endows hESCs with promise for the development of novel therapeutics, as well as promise for the development of a rigorous genetic system to probe human gene function. However, in spite of the impending utility of hESCs for clinical and basic applications, little is known about their fundamental properties. Recent reports have documented transcriptional profiles of mouse embryonic stem cells (mESCs), adult stem cells, and a single hESC line, H9. To date, however, the transcriptional profiles of independently-derived hESC lines have not been compared. In order to examine the similarities and differences in multiple hESC lines, we compared gene expression profiles of the HSF-1, HSF-6 and H9 lines. We found that the majority of genes examined were expressed in all three cell lines. However, we also observed that each line possessed a unique expression signature; the expression of many genes was limited to just one or two hESC lines. We suggest that the observed differences in gene expression between independently derived hESC lines may reflect inherent differences in the initial culture of each line and/or the underlying genetics of the embryos from which the lines were derived.
Article
Unique Gene Expression Signatures Of Independently-Derived Human Embryonic Stem Cell Lines
2 Center for Reproductive Sciences; Department of Obstetrics, Gynecology and Reproductive Sciences, University of California at San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0546, USA; Developmental and Stem Cell Biology; University of California at San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0546, USA
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