Cited by 24Viral Infectious Diseases and Gene Expression in InsectsGlycosylation and Glycoproteins ResearchProtein purification and stability

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Highly sialylated recombinant human erythropoietin production in large‐scale perfusion bioreactor utilizing CHO‐gmt4 (JW152) with restored GnT I function

Abstract

Therapeutic glycoprotein drugs require a high degree of sialylation of their N‐glycans for a better circulatory half‐life that results in greater efficacy. It has been demonstrated that Chinese hamster ovary (CHO) glycosylation mutants lacking N‐acetylglucosaminyltransferase I (GnT I), when restored by introduction of a functional GnT I, produced highly sialylated erythropoietin (EPO). We have now further engineered one of such mutants, JW152, by inactivating the dihydrofolate reductase (DHFR) gene to allow for the amplification of the EPO gene with methotrexate (MTX). Several MTX‐amplified clones maintained the ability to produce highly sialylated EPO and one was selected for culture in a perfusion bioreactor that is used in an existing industrial EPO‐production bioprocess. Extensive characterization of the EPO produced was performed using total sialic quantification, HPAEC‐PAD and MALDI‐TOF MS analyses. Our results demonstrated that the EPO produced by the mutant line exhibits superior sialylation compared to the commercially used EPO‐producing CHO clone cultured under the same conditions. Therefore, this mutant has the industrial potential for producing highly sialylated recombinant EPO and potentially other recombinant glycoprotein therapeutics.

Overview

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Crossref · 10.1002/biot.201300301

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25 of 25 references verified0 citation errors · 0 not checkable

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Research works printed but not linked: 1

  1. Fukuda M. N., 1989, Survival of recombinant erythropoietin in the circulation: the role of carbohydrates., Blood, 73, 84, 10.1182/blood.v73.1.84.84 · DOI

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Metadata

Authors
Goh, J. S. Y., Liu, Y., Liu, H., Chan, K. F., Wan, C., Teo, G., Zhou, X., Xie, F., Zhang, P., Zhang, Y., & Song, Z.
Affiliations
  • Agency for Science, Technology and Research (SG)
  • East China University of Science and Technology (CN)
Corresponding author
Song, Zhiwei
Venue
Biotechnology Journal
Publisher
Wiley
Published
2013-12-10
Volume
9
Issue
1
Pages
100-109
ISSN
  • 1860-6768 (ISSN-L)
  • 1860-7314
OpenAlex
W2081709738
Cited by
22
References
25
Citations by year
2024: 1 · 2021: 1 · 2020: 2 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 3 · 2014: 5
FWCI
1.49
Type
journal article
Language
en
Open access
closed
Locations
  • Biotechnology Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Viral Infectious Diseases and Gene Expression in Insects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein purification and stability
Keywords
recombinant human erythropoietin, sialylation, N-acetylglucosaminyltransferase I, perfusion bioreactor, glycosylation mutants, industrial bioprocesses
MeSH terms
Animals, Cricetulus, Erythropoietin, Gene Amplification, Glycosylation, Half-Life, Cricetinae, Humans, Methotrexate, Mutation, Recombinant Proteins, Tetrahydrofolate Dehydrogenase, CHO Cells, N-Acetylglucosaminyltransferases, Bioreactors, N-Acetylneuraminic Acid, Cell Engineering

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