Document Detail

Human haploid cells differentiated from meiotic competent clonal germ cell lines that originated from embryonic stem cells.
MedLine Citation:
PMID:  20929355     Owner:  NLM     Status:  In-Data-Review    
Early germ-like cells (GLCs) derived from human embryonic stem cells (hESCs) have presented new opportunities to study germ cell differentiation in vitro. However, differentiation conditions that facilitate the formation of haploid cells from the derived GLCs have eluded the field. The inability to propagate GLCs in culture is a further limitation, resulting in inconsistent rederivations of GLCs from hESCs with relatively few GLCs in these heterogeneous populations. Here we found in vitro conditions that enrich for DDX4/POU5F1+ GLCs (∼60%) and that has enabled continual propagation for >50 passages without loss of phenotype. Clonal isolation of single GLCs from these mixed cultures generated 3 GLC (>90% DDX4/POU5F1+) and 2 hESC (<0.1% DDX4+) lines that could be continually expanded without loss of phenotype. Differentiation of clonal GLC lines in serum resulted in expression of postmeiotic markers and >11% were haploid, ∼5-fold higher than previous studies. The robust clonal meiotic competent and incompetent GLC lines will be used to understand the factors controlling human germ cell meiosis and postmeiotic maturation.
Franklin D West; Jennifer L Mumaw; Amalia Gallegos-Cardenas; Amber Young; Steven L Stice
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Publication Detail:
Type:  Journal Article     Date:  2010-12-02
Journal Detail:
Title:  Stem cells and development     Volume:  20     ISSN:  1557-8534     ISO Abbreviation:  Stem Cells Dev.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-05-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101197107     Medline TA:  Stem Cells Dev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1079-88     Citation Subset:  IM    
1 Regenerative Bioscience Center, University of Georgia , Athens, Georgia .
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