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Open Access Green as soon as Postprint is submitted to ZB.
An antibody against SSEA-5 glycan on human pluripotent stem cells enables removal of teratoma-forming cells.
Nat. Biotechnol. 29, 829-834 (2011)
An important risk in the clinical application of human pluripotent stem cells (hPSCs), including human embryonic and induced pluripotent stem cells (hESCs and hiPSCs), is teratoma formation by residual undifferentiated cells. We raised a monoclonal antibody against hESCs, designated anti-stage-specific embryonic antigen (SSEA)-5, which binds a previously unidentified antigen highly and specifically expressed on hPSCs--the H type-1 glycan. Separation based on SSEA-5 expression through fluorescence-activated cell sorting (FACS) greatly reduced teratoma-formation potential of heterogeneously differentiated cultures. To ensure complete removal of teratoma-forming cells, we identified additional pluripotency surface markers (PSMs) exhibiting a large dynamic expression range during differentiation: CD9, CD30, CD50, CD90 and CD200. Immunohistochemistry studies of human fetal tissues and bioinformatics analysis of a microarray database revealed that concurrent expression of these markers is both common and specific to hPSCs. Immunodepletion with antibodies against SSEA-5 and two additional PSMs completely removed teratoma-formation potential from incompletely differentiated hESC cultures.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
2011
HGF-reported in Year
0
ISSN (print) / ISBN
1087-0156
e-ISSN
1546-1696
Journal
Nature Biotechnology
Quellenangaben
Volume: 29,
Issue: 9,
Pages: 829-834
Publisher
Nature Publishing Group
Publishing Place
New York, NY
Reviewing status
Peer reviewed
Institute(s)
Institute of Stem Cell Research (ISF)
POF-Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s)
Stem Cell and Neuroscience
PSP Element(s)
G-552400-001
PubMed ID
21841799
DOI
10.1038/nbt.1947
Erfassungsdatum
2011-12-31