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Cited by 932

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Human embryonic stem cells express an immunogenic nonhuman sialic acid

Open access
Martin, Maria J, Muotri, Alysson, Gage, Fred, Varki, Ajit·2005·Nature Medicine

Abstract

Human embryonic stem cells (HESC) can potentially generate every body cell type, making them excellent candidates for cell- and tissue-replacement therapies. HESC are typically cultured with animal-derived 'serum replacements' on mouse feeder layers. Both of these are sources of the nonhuman sialic acid Neu5Gc, against which many humans have circulating antibodies. Both HESC and derived embryoid bodies metabolically incorporate substantial amounts of Neu5Gc under standard conditions. Exposure to human sera with antibodies specific for Neu5Gc resulted in binding of immunoglobulin and deposition of complement, which would lead to cell killing in vivo. Levels of Neu5Gc on HESC and embryoid bodies dropped after culture in heat-inactivated anti-Neu5Gc antibody–negative human serum, reducing binding of antibodies and complement from high-titer sera, while allowing maintenance of the undifferentiated state. Complete elimination of Neu5Gc would be likely to require using human serum with human feeder layers, ideally starting with fresh HESC that have never been exposed to animal products.

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Metadata

Authors
Martin, M. J., Muotri, A., Gage, F., & Varki, A.
Venue
Nature Medicine
Published
2005-01-30
Volume
11
Issue
2
Pages
228-232
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2120121992
Cited by
932
References
1
FWCI
30.19
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Human embryonic stem cells express an immunogenic nonhuman sialic acid. https://app.cochat.ai/papers/10.1038/nm1181
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Martin, M. J., Muotri, A., Gage, F., & Varki, A. (2005). Human embryonic stem cells express an immunogenic nonhuman sialic acid. Nature Medicine. https://doi.org/10.1038/nm1181

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