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The GAGOme : a cell-based library of displayed glycosaminoglycans

Chen, Yen Hsi ; Narimatsu, Yoshiki ; Clausen, Thomas M. ; Gomes, Catarina ; Karlsson, Richard ; Steentoft, Catharina ; Spliid, Charlotte B. ; Gustavsson, Tobias LU ; Salanti, Ali and Persson, Andrea LU , et al. (2018) In Nature Methods 15(11). p.881-888
Abstract

Glycosaminoglycans (GAGs) are essential polysaccharides in normal physiology and disease. However, understanding of the contribution of specific GAG structures to specific biological functions is limited, largely because of the great structural heterogeneity among GAGs themselves, as well as technical limitations in the structural characterization and chemical synthesis of GAGs. Here we describe a cell-based method to produce and display distinct GAGs with a broad repertoire of modifications, a library we refer to as the GAGOme. By using precise gene editing, we engineered a large panel of Chinese hamster ovary cells with knockout or knock-in of the genes encoding most of the enzymes involved in GAG biosynthesis, to generate a library... (More)

Glycosaminoglycans (GAGs) are essential polysaccharides in normal physiology and disease. However, understanding of the contribution of specific GAG structures to specific biological functions is limited, largely because of the great structural heterogeneity among GAGs themselves, as well as technical limitations in the structural characterization and chemical synthesis of GAGs. Here we describe a cell-based method to produce and display distinct GAGs with a broad repertoire of modifications, a library we refer to as the GAGOme. By using precise gene editing, we engineered a large panel of Chinese hamster ovary cells with knockout or knock-in of the genes encoding most of the enzymes involved in GAG biosynthesis, to generate a library of isogenic cell lines that differentially display distinct GAG features. We show that this library can be used for cell-based binding assays, recombinant expression of proteoglycans with distinct GAG structures, and production of distinct GAG chains on metabolic primers that may be used for the assembly of GAG glycan microarrays.

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Please use this url to cite or link to this publication:
@article{4888f4e7-cab2-48ee-880e-691cd00b7fbb,
  abstract     = {{<p>Glycosaminoglycans (GAGs) are essential polysaccharides in normal physiology and disease. However, understanding of the contribution of specific GAG structures to specific biological functions is limited, largely because of the great structural heterogeneity among GAGs themselves, as well as technical limitations in the structural characterization and chemical synthesis of GAGs. Here we describe a cell-based method to produce and display distinct GAGs with a broad repertoire of modifications, a library we refer to as the GAGOme. By using precise gene editing, we engineered a large panel of Chinese hamster ovary cells with knockout or knock-in of the genes encoding most of the enzymes involved in GAG biosynthesis, to generate a library of isogenic cell lines that differentially display distinct GAG features. We show that this library can be used for cell-based binding assays, recombinant expression of proteoglycans with distinct GAG structures, and production of distinct GAG chains on metabolic primers that may be used for the assembly of GAG glycan microarrays.</p>}},
  author       = {{Chen, Yen Hsi and Narimatsu, Yoshiki and Clausen, Thomas M. and Gomes, Catarina and Karlsson, Richard and Steentoft, Catharina and Spliid, Charlotte B. and Gustavsson, Tobias and Salanti, Ali and Persson, Andrea and Malmström, Anders and Willén, Daniel and Ellervik, Ulf and Bennett, Eric P. and Mao, Yang and Clausen, Henrik and Yang, Zhang}},
  issn         = {{1548-7091}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{881--888}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Methods}},
  title        = {{The GAGOme : a cell-based library of displayed glycosaminoglycans}},
  url          = {{http://dx.doi.org/10.1038/s41592-018-0086-z}},
  doi          = {{10.1038/s41592-018-0086-z}},
  volume       = {{15}},
  year         = {{2018}},
}