Evidence map›Paper›PMID 30599174›Full record

ArticleAntiviral research2019

An E. coli-produced single-chain variable fragment (scFv) targeting hepatitis B virus surface protein potently inhibited virion secretion.

Cheng Li, Yang Wang, Tiantian Liu, Matthias Niklasch, Ke Qiao, Sarah Durand, Li Chen, Mifang Liang, Thomas F Baumert, Shuping Tong and 3 more

Open access · greenAbstract read
In one paragraph

Article in Antiviral research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.5field-weighted citation impact, top 31% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  6. Viral oncogenesis in cancer: from mechanisms to therapeutics.Signal transduction and targeted therapy · 2025
    Review
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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

13 authors at 2 institutions in 3 countries.

Cheng LiKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Yang WangKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Tiantian LiuKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Matthias NiklaschUniversity Hospital Freiburg, Department of Internal Medicine II/Molecular Biology, Freiburg, Germany.
Ke QiaoKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Sarah DurandInserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France.
Li ChenKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Mifang LiangKey Laboratory for Medical Virology, NHFPC, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.
Thomas F BaumertInserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France; Université de Strasbourg, Strasbourg, France; Institut Hospitalo-Universitaire, Pôle 5 Hépato-digestif, Nouvel Hôpital Civil, Strasbourg, France.
Shuping TongKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Michael NassalUniversity Hospital Freiburg, Department of Internal Medicine II/Molecular Biology, Freiburg, Germany.
Yu-Mei WenKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China.
Yong-Xiang WangKey Laboratory of Medical Molecular Virology, Ministry of Education and Ministry of Health, Shanghai Medical College of Fudan University, Shanghai, China. Electronic address: yongxiangwang@fudan.edu.cn.
Shanghai Medical College of Fudan University · CNInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis B virus (HBV) envelopes as well as empty subviral particles carry in their lipid membranes the small (S), middle (M), and large (L) surface proteins, collectively known as hepatitis B surface antigen (HBsAg). Due to their common S domain all three proteins share a surface-exposed hydrophilic antigenic loop (AGL) with a complex disulfide bridge-dependent structure. The AGL is critical for HBV infectivity and virion secretion, and thus represents a major target for neutralizing antibodies. Previously, a human monoclonal antibody (mAb) targeting a conformational epitope in the AGL, IgG12, exhibited 1000-fold higher neutralizing activity than hepatitis B immune globulin (HBIG). Here we designed a single-chain variable fragment (scFv) homolog of IgG12, G12-scFv, which could be efficiently produced in soluble form in the cytoplasm of E. coli SHuffle cells. Independent in vitro assays verified specific binding of G12-scFv to a conformational S epitope shared with IgG12. Despite 20-fold lower affinity, G12-scFv but not an irrelevant scFv potently neutralized HBV infection of susceptible hepatoma cells (IC

Indexed as

Antibodies, NeutralizingEscherichia coliHepatitis B Surface AntigensHepatitis B virusHep G2 CellsHumansInhibitory Concentration 50Single-Chain AntibodiesVirionVirus ReplicationAntibodies, NeutralizingHepatitis B Surface AntigensSingle-Chain Antibodies

Identifiers

PMID30599174
PMCPMC7613426
OpenAlexW2908415217

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.