Abstract：
:Previous reports have demonstrated the growth of undifferentiated human embryonic stem (HES) cells on mouse embryonic fibroblast (MEF) feeders and on laminin- or Matrigel-coated plastic surfaces supplemented with MEF-conditioned medium. These xenosupport systems run the risk of cross-transfer of animal pathogens from the animal feeder, matrix, or conditioned medium to the HES cells, thus compromising later clinical application. Here we show that human fetal and adult fibroblast feeders support prolonged undifferentiated HES cell growth of existing cell lines and are superior to cell-free matrices (collagen I, human extracellular matrix, Matrigel, and laminin) supplemented with human or MEF feeder-conditioned medium. Additionally, we report the derivation and establishment of a new HES cell line in completely animal-free conditions. Like HES cells cultured on MEF feeders, the HES cells grown on human feeders had normal karyotypes, tested positive for alkaline phosphatase activity, expressed Oct-4 and cell surface markers including SSEA-3, SSEA-4, Tra 1-60, and GCTM-2, formed teratomas in severely combined immunodeficient (SCID) mice, and retained all key morphological characteristics. Human feeder#150;supported HES cells should provide a safer alternative to existing HES cell lines in therapeutic applications.
journal_name
Nat Biotechnoljournal_title
Nature biotechnologyauthors
Richards M,Fong CY,Chan WK,Wong PC,Bongso Adoi
10.1038/nbt726subject
Has Abstractpub_date
2002-09-01 00:00:00pages
933-6issue
9eissn
1087-0156issn
1546-1696pii
nbt726journal_volume
20pub_type
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pub_type： 已发布勘误
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pub_type： 杂志文章,评审
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更新日期：2003-10-01 00:00:00
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更新日期：2007-02-01 00:00:00
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更新日期：2006-05-01 00:00:00
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journal_title：Nature biotechnology
pub_type： 杂志文章,评审
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更新日期：2000-02-01 00:00:00
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pub_type： 杂志文章
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更新日期：2017-09-01 00:00:00
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pub_type： 杂志文章,已发布勘误
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更新日期：2020-03-01 00:00:00
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更新日期：2017-07-01 00:00:00
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更新日期：2015-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2000-05-01 00:00:00
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更新日期：2016-02-01 00:00:00
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更新日期：2011-10-09 00:00:00
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更新日期：2020-06-01 00:00:00
