Evidence map›Paper›PMID 26417081›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Glycan modulation and sulfoengineering of anti-HIV-1 monoclonal antibody PG9 in plants.

Andreas Loos, Johannes S Gach, Thomas Hackl, Daniel Maresch, Theresa Henkel, Andreas Porodko, Duc Bui-Minh, Wolfgang Sommeregger, Gordana Wozniak-Knopp, Donald N Forthal and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 4% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Plant-Based Systems for Producing Therapeutic Proteins: Current Status and Future Prospects.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Production andFrontiers in plant science · 2023
    Article
  10. Plant-based biopharmaceutical engineering.Nature reviews bioengineering · 2023
    Review
  11. Article
  12. Reply to Pandey: Possible functional impact of IgG3 allotype constant region.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Review
  14. Transient proteolysis reduction ofFrontiers in plant science · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  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

13 authors at 2 institutions in 2 countries.

Andreas LoosDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Johannes S GachDivision of Infectious Diseases, University of California, Irvine, CA 92697;
Thomas HacklDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Daniel MareschDepartment of Chemistry, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Theresa HenkelDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Andreas PorodkoDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Duc Bui-MinhDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Wolfgang SommereggerDepartment of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
Gordana Wozniak-KnoppDepartment of Biotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria.
Donald N ForthalDivision of Infectious Diseases, University of California, Irvine, CA 92697;
Friedrich AltmannDepartment of Chemistry, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria;
Herta SteinkellnerDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria; herta.steinkellner@boku.ac.at lukas.mach@boku.ac.at.
Lukas MachDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria; herta.steinkellner@boku.ac.at lukas.mach@boku.ac.at.
BOKU University · ATUniversity of California, Irvine · US

Funding

University of California Health Participation in the National COVID Cohort Collaborative (N3C)UL1TR001414 · NCATS · UNIVERSITY OF CALIFORNIA-IRVINE · PI COOPER, DAN M, VILAIN, ERIC J. · 2015 to 2023
$35.1M
Austrian Science Fund FWF L 575Austrian Science Fund FWF W 1224NCATS NIH HHS UL1 TR001414
6 · The paper itself

Abstract

Broadly neutralizing anti-HIV-1 monoclonal antibodies, such as PG9, and its derivative RSH hold great promise in AIDS therapy and prevention. An important feature related to the exceptional efficacy of PG9 and RSH is the presence of sulfated tyrosine residues in their antigen-binding regions. To maximize antibody functionalities, we have now produced glycan-optimized, fucose-free versions of PG9 and RSH in Nicotiana benthamiana. Both antibodies were efficiently sulfated in planta on coexpression of an engineered human tyrosylprotein sulfotransferase, resulting in antigen-binding and virus neutralization activities equivalent to PG9 synthesized by mammalian cells ((CHO)PG9). Based on the controlled production of both sulfated and nonsulfated variants in plants, we could unequivocally prove that tyrosine sulfation is critical for the potency of PG9 and RSH. Moreover, the fucose-free antibodies generated in N. benthamiana are capable of inducing antibody-dependent cellular cytotoxicity, an activity not observed for (CHO)PG9. Thus, tailoring of the antigen-binding site combined with glycan modulation and sulfoengineering yielded plant-produced anti-HIV-1 antibodies with effector functions superior to PG9 made in CHO cells.

Indexed as

Antibodies, MonoclonalHIV-1HIV AntibodiesNicotianaAnimalsCHO CellsCricetinaeCricetulusGlycosylationHumansMetabolic EngineeringPolysaccharidesRecombinant ProteinsAntibodies, MonoclonalHIV AntibodiesPolysaccharidesRecombinant Proteinsantibodybiopharmaceuticalglycosylationplantsulfation

Identifiers

PMID26417081
PMCPMC4611627
OpenAlexW2171492977

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.