Evidence map›Paper›PMID 34002936›Full record

ArticlePlant biotechnology journal2021

Hepatitis C virus E2 envelope glycoprotein produced in Nicotiana benthamiana triggers humoral response with virus-neutralizing activity in vaccinated mice.

Mihaela-Olivia Dobrica, André van Eerde, Catalin Tucureanu, Adrian Onu, Lisa Paruch, Iuliana Caras, Ene Vlase, Hege Steen, Sissel Haugslien, Dominic Alonzi and 7 more

Open access · goldAbstract read
In one paragraph

Article in Plant biotechnology journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Application of Orthoflavivirus Pseudovirus Technology in Antiviral Research.International journal of molecular sciences · 2026
    Review
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  4. The red algaProceedings of the National Academy of Sciences of the United States of America · 2024
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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 6 institutions in 5 countries.

Mihaela-Olivia DobricaInstitute of Biochemistry of the Romanian Academy, Bucharest, Romania.ORCID 0000-0003-3622-712X
André van EerdeNIBIO - Norwegian Institute of Bioeconomy Research, Ås, Norway.
Catalin TucureanuCantacuzino" Medico-Military National Research Institute, Bucharest, Romania.
Adrian OnuCantacuzino" Medico-Military National Research Institute, Bucharest, Romania.
Lisa ParuchNIBIO - Norwegian Institute of Bioeconomy Research, Ås, Norway.
Iuliana CarasCantacuzino" Medico-Military National Research Institute, Bucharest, Romania.
Ene VlaseCantacuzino" Medico-Military National Research Institute, Bucharest, Romania.
Hege SteenNIBIO - Norwegian Institute of Bioeconomy Research, Ås, Norway.
Sissel HaugslienNIBIO - Norwegian Institute of Bioeconomy Research, Ås, Norway.
Dominic AlonziOxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford, UK.
Nicole ZitzmannOxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford, UK.
Ralph BockMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.ORCID 0000-0001-7502-6940
Jean DubuissonUniversité Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, Lille, France.
Costin-Ioan PopescuInstitute of Biochemistry of the Romanian Academy, Bucharest, Romania.
Crina StavaruCantacuzino" Medico-Military National Research Institute, Bucharest, Romania.
Jihong Liu ClarkeNIBIO - Norwegian Institute of Bioeconomy Research, Ås, Norway.ORCID 0000-0002-4924-0406
Norica Branza-NichitaInstitute of Biochemistry of the Romanian Academy, Bucharest, Romania.ORCID 0000-0001-7896-7930
Institutul Cantacuzino · RONorwegian Institute of Bioeconomy Research · NOInstitute of Biochemistry · ROUniversity of Oxford · GBCentre National de la Recherche Scientifique · FRMax Planck Institute of Molecular Plant Physiology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronic infection with hepatitis C virus (HCV) remains a leading cause of liver-related pathologies and a global health problem, currently affecting more than 71 million people worldwide. The development of a prophylactic vaccine is much needed to complement the effective antiviral treatment available and achieve HCV eradication. Current strategies focus on increasing the immunogenicity of the HCV envelope glycoprotein E2, the major target of virus-neutralizing antibodies, by testing various expression systems or manipulating the protein conformation and the N-glycosylation pattern. Here we report the first evidence of successful production of the full-length HCV E2 glycoprotein in Nicotiana benthamiana, by using the Agrobacterium-mediated transient expression technology. Molecular and functional analysis showed that the viral protein was correctly processed in plant cells and achieved the native folding required for binding to CD81, one of the HCV receptors. N-glycan analysis of HCV-E2 produced in N. benthamiana and mammalian cells indicated host-specific trimming of mannose residues and possibly, protein trafficking. Notably, the plant-derived viral antigen triggered a significant immune response in vaccinated mice, characterized by the presence of antibodies with HCV-neutralizing activity. Together, our study demonstrates that N. benthamiana is a viable alternative to costly mammalian cell cultures for the expression of complex viral antigens and supports the use of plants as cost-effective production platforms for the development of HCV vaccines.

Indexed as

HepacivirusViral Hepatitis VaccinesAnimalsAntibodies, NeutralizingHepatitis C AntibodiesMiceNicotianaViral Envelope ProteinsAntibodies, NeutralizingHepatitis C AntibodiesViral Envelope ProteinsViral Hepatitis VaccinesE2 glycoproteinHCV-neutralizing antibodiesHCV vaccineN-glycosylationplant biopharmaceuticals

Identifiers

PMID34002936
PMCPMC8486241
OpenAlexW3160807608

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.