Evidence map›Paper›PMID 32277089›Full record

ArticleScientific reports2020

Plant-based production of highly potent anti-HIV antibodies with engineered posttranslational modifications.

Advaita Acarya Singh, Ofentse Pooe, Lusisizwe Kwezi, Therese Lotter-Stark, Stoyan H Stoychev, Kabamba Alexandra, Isak Gerber, Jinal N Bhiman, Juan Vorster, Michael Pauly and 7 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

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

  1. Pooled it
  2. Plant-Based Systems for Producing Therapeutic Proteins: Current Status and Future Prospects.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Plant-based biopharmaceutical engineering.Nature reviews bioengineering · 2023
    Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Transient proteolysis reduction ofFrontiers in plant science · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  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

17 authors at 7 institutions in 3 countries.

Advaita Acarya SinghFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Ofentse PooeDiscipline of Biochemistry, University of KwaZulu-Natal, Durban, South Africa.ORCID http://orcid.org/0000-0002-2967-7846
Lusisizwe KweziFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Therese Lotter-StarkDepartment of Production Animal Studies, University of Pretoria, Pretoria, South Africa.
Stoyan H StoychevFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Kabamba AlexandraFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Isak GerberFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Jinal N BhimanDepartment of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, 92037, USA.
Juan VorsterDepartment of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa.
Michael PaulyMapp Biopharmaceutical, San Diego, California, United States.
Larry ZeitlinMapp Biopharmaceutical, San Diego, California, United States.ORCID http://orcid.org/0000-0002-6857-1024
Kevin WhaleyMapp Biopharmaceutical, San Diego, California, United States.
Lukas MachDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria.
Herta SteinkellnerDepartment of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria.
Lynn MorrisCentre for HIV and STIs, National Institute for Communicable Diseases of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.ORCID http://orcid.org/0000-0003-3961-7828
Tsepo Lebiletsa TsekoaFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa. ttsekoa@csir.co.za.ORCID http://orcid.org/0000-0002-5561-5462
Rachel ChikwambaFuture Production: Chemicals, Council for Scientific and Industrial Research, Pretoria, South Africa.
Council for Scientific and Industrial Research · ZAMapp Biopharmaceutical (United States) · USBOKU University · ATUniversity of Pretoria · ZANational Health Laboratory Service · ZAScripps Research Institute · USUniversity of KwaZulu-Natal · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Broadly neutralising antibodies (bNAbs) against human immunodeficiency virus type 1 (HIV-1), such as CAP256-VRC26 are being developed for HIV prevention and treatment. These Abs carry a unique but crucial post-translational modification (PTM), namely O-sulfated tyrosine in the heavy chain complementarity determining region (CDR) H3 loop. Several studies have demonstrated that plants are suitable hosts for the generation of highly active anti-HIV-1 antibodies with the potential to engineer PTMs. Here we report the expression and characterisation of CAP256-VRC26 bNAbs with posttranslational modifications (PTM). Two variants, CAP256-VRC26 (08 and 09) were expressed in glycoengineered Nicotiana benthamiana plants. By in planta co-expression of tyrosyl protein sulfotransferase 1, we installed O-sulfated tyrosine in CDR H3 of both bNAbs. These exhibited similar structural folding to the mammalian cell produced bNAbs, but non-sulfated versions showed loss of neutralisation breadth and potency. In contrast, tyrosine sulfated versions displayed equivalent neutralising activity to mammalian produced antibodies retaining exceptional potency against some subtype C viruses. Together, the data demonstrate the enormous potential of plant-based systems for multiple posttranslational engineering and production of fully active bNAbs for application in passive immunisation or as an alternative for current HIV/AIDS antiretroviral therapy regimens.

Indexed as

Antibodies, NeutralizingBiotechnologyGenetic EngineeringHIV-1HIV AntibodiesHIV InfectionsHumansNicotianaPlants, Genetically ModifiedProtein EngineeringProtein Processing, Post-TranslationalAntibodies, NeutralizingHIV Antibodies

Identifiers

PMID32277089
PMCPMC7148297
OpenAlexW3015471329

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.