Evidence map›Paper›PMID 21484210›Full record

ArticleApplied microbiology and biotechnology2011

Control of the heparosan N-deacetylation leads to an improved bioengineered heparin.

Zhenyu Wang, Bo Yang, Zhenqing Zhang, Mellisa Ly, Majde Takieddin, Shaker Mousa, Jian Liu, Jonathan S Dordick, Robert J Linhardt

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Applied microbiology and biotechnology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 57 citations in OpenAlex.

  1. Synthetic biology for heparin biomanufacturing.Bioresources and bioprocessing · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Non-Anticoagulant Heparins as Heparanase Inhibitors.Advances in experimental medicine and biology · 2020
    Review
  10. Article
  11. Recombinant Heparin-New Opportunities.Frontiers in medicine · 2018
    Review
  12. Engineered heparins as new anticoagulant drugs.Bioengineering & translational medicine · 2017
    Review
  13. Bioengineered heparins and heparan sulfates.Advanced drug delivery reviews · 2016
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Zhenyu WangDepartment of Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
Bo Yang
Zhenqing Zhang
Mellisa Ly
Majde Takieddin
Shaker Mousa
Jian Liu
Jonathan S Dordick
Robert J Linhardt
Rensselaer Polytechnic Institute · USAlbany College of Pharmacy and Health Sciences · USUniversity of North Carolina at Chapel Hill · US

Funding

In vitro synthesis of recombinant heparan sulfateR01HL094463 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LIU, JIAN, PAWLINSKI, RAFAL L · 2009 to 2021
$5.2M
Development of a Bioengineered Heparin from a Non-Animal SourceR01HL096972 · NHLBI · RENSSELAER POLYTECHNIC INSTITUTE · PI DORDICK, JONATHAN S., LINHARDT, ROBERT J · 2009 to 2013
$3.9M
SEQUENCING THE POLYSACCHARIDE COMPONENT OF PROTEOGLYCANSR01GM038060 · NIGMS · UNIVERSITY OF IOWA · PI LINHARDT, ROBERT J · 1988 to 2012
$2.8M
NHLBI NIH HHS HL096972NHLBI NIH HHS R01 HL094463NHLBI NIH HHS R01 HL096972NIGMS NIH HHS R01 GM038060
6 · The paper itself

Abstract

The production of the anticoagulant drug heparin from non-animal sources has a number of advantages over the current commercial production of heparin. These advantages include better source material availability, improved quality control, and reduced concerns about animal virus or prion impurities. A bioengineered heparin would have to be chemically and biologically equivalent to be substituted for animal-sourced heparin as a pharmaceutical. In an effort to produce bioengineered heparin that more closely resembles pharmaceutical heparin, we have investigated a key step in the process involving the N-deacetylation of heparosan. The extent of N-deacetylation directly affects the N-acetyl/N-sulfo ratio in bioengineered heparin and also impacts its molecular weight. Previous studies have demonstrated that the presence and quantity of N-acetylglucosamine in the nascent glycosaminoglycan chain, serving as the substrate for the subsequent enzymatic modifications (C5 epimerization and O-sulfonation), can impact the action of these enzymes and, thus, the content and distribution of iduronic acid and O-sulfo groups. In this study, we control the N-deacetylation of heparosan to produce a bioengineered heparin with an N-acetyl/N-sulfo ratio and molecular weight that is similar to animal-sourced pharmaceutical heparin. The structural composition and anticoagulant activity of the resultant bioengineered heparin was extensively characterized and compared to pharmaceutical heparin obtained from porcine intestinal mucosa.

Indexed as

AcetylglucosamineAnticoagulantsDisaccharidesEscherichia coliHeparinHumansIndustrial MicrobiologyMolecular StructureMolecular WeightAcetylglucosamineAnticoagulantsDisaccharidesHeparinheparosan

Identifiers

PMID21484210
PMCPMC3124281
OpenAlexW2024882177

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.