Glycosylation and functionality of recombinant β-glucocerebrosidase from various production systems
Open accessAbstract
The glycosylation of recombinant β-glucocerebrosidase, and in particular the exposure of mannose residues, has been shown to be a key factor in the success of ERT (enzyme replacement therapy) for the treatment of GD (Gaucher disease). Macrophages, the target cells in GD, internalize β-glucocerebrosidase through MRs (mannose receptors). Three enzymes are commercially available for the treatment of GD by ERT. Taliglucerase alfa, imiglucerase and velaglucerase alfa are each produced in different cell systems and undergo various post-translational or post-production glycosylation modifications to expose their mannose residues. This is the first study in which the glycosylation profiles of the three enzymes are compared, using the same methodology and the effect on functionality and cellular uptake is evaluated. While the major differences in glycosylation profiles reside in the variation of terminal residues and mannose chain length, the enzymatic activity and stability are not affected by these differences. Furthermore, the cellular uptake and in-cell stability in rat and human macrophages are similar. Finally, in vivo studies to evaluate the uptake into target organs also show similar results for all three enzymes. These results indicate that the variations of glycosylation between the three regulatory-approved β-glucocerebrosidase enzymes have no effect on their function or distribution.
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Velaglucerase alfa and other β-glucocerebrosidases produced in CHO and carrot cells show diverse glycan profiles but similar macrophage uptake, in vitro enzymatic activity, stability, and efficacy.
“Even though these three products show diverse glycan profiles, they showed similar macrophage uptake, in vitro enzymatic activity, stability and efficacy (Ben Turkia et al., 2013;Tekoah et al., 2013).”
From Therapeutic glycoprotein production in mammalian cells (2017) · cites this paper as Tekoah et al., 2013
The Introduction table identifies the three enzymes as produced in human fibrosarcoma, CHO, and carrot cells. The Discussion reports different glycan profiles but comparable enzymatic activity, stability, and macrophage uptake. It says clinical trial data *suggest* no significant differences in clinical improvement, rather than establishing similar efficacy as a finding of this study. (LLM, conf=0.83)
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Therapeutic glycoprotein production in mammalian cells
Lalonde, M.-E., & Durocher, Y. (2017) · Journal of Biotechnology · doi:10.1016/j.jbiotec.2017.04.028 · Cited by 296 · see citing works
Amann, T., Schmieder, V., Faustrup Kildegaard, H., Borth, N., & Andersen, M. R. (2019) · Biotechnology and Bioengineering · doi:10.1002/bit.27101 · Cited by 46 · see citing works
- Authors
- Tekoah, Y., Tzaban, S., Kizhner, T., Hainrichson, M., Gantman, A., Golembo, M., Aviezer, D., & Shaaltiel, Y.
- Affiliations
- Protalix BioTherapeutics (Israel) (IL)
- Bar-Ilan University (IL)
- Corresponding author
- Tekoah, Yoram
- Tzaban, Salit
- Kizhner, Tali
- Hainrichson, Mariana
- Gantman, Anna
- Golembo, Myriam
- Aviezer, David
- Shaaltiel, Yoseph
- Venue
- Bioscience Reports
- Publisher
- Portland Press Ltd.
- Published
- 2013-09-25
- Volume
- 33
- Issue
- 5
- ISSN
- 0144-8463 (ISSN-L)
- 1573-4935
- PMC
- PMC3782720
- OpenAlex
- W2080070582
- Cited by
- 100
- References
- 1
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 6 · 2023: 11 · 2022: 4 · 2021: 3 · 2020: 8 · 2019: 8 · 2018: 12 · 2017: 6 · 2016: 7 · 2015: 13 · 2014: 10 · 2013: 1
- FWCI
- 7.18
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Bioscience Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Pfizer
- Topics
- Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Viral Infectious Diseases and Gene Expression in Insects
- Keywords
- beta-glucocerebrosidase, Gaucher disease, enzyme replacement therapy, glycosylation, mannose residues, CD206, taliglucerase alfa, imiglucerase, velaglucerase alfa, macrophage uptake, enzyme stability
- MeSH terms
- Animals, Biological Transport, Carbohydrate Conformation, Carbohydrate Sequence, Cell Line, Enzyme Stability, Glucosylceramidase, Glycosylation, Humans, Kinetics, Male, Mice, Inbred ICR, Molecular Sequence Data, Protein Processing, Post-Translational, Recombinant Proteins, Tissue Distribution, Macrophages, Alveolar, Mice, Rats
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