Evidence map›Paper›PMID 16415011›Full record

ArticleJournal of virology2006

Antibodies against West Nile Virus nonstructural protein NS1 prevent lethal infection through Fc gamma receptor-dependent and -independent mechanisms.

Kyung Min Chung, Grant E Nybakken, Bruce S Thompson, Michael J Engle, Anantha Marri, Daved H Fremont, Michael S Diamond

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 121 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed, 1 pooled it
16.1field-weighted citation impact, top 1% 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

121 citing papers in PubMed, 1 synthesis or guideline pooled it, 239 citations in OpenAlex.

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61 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 2 countries.

Kyung Min ChungDivision of Infectious Diseases, Department of Medicine, Washington University School of Medicine, Campus Box 8051, 660 S. Euclid Avenue, St. Louis, MO 63110, USA.
Grant E Nybakken
Bruce S Thompson
Michael J Engle
Anantha Marri
Daved H Fremont
Michael S Diamond
Institute of Molecular Biology and Biophysics · RUWashington University in St. Louis · US

Funding

Virology and Smallpox VaccinationsU54AI057160 · NIAID · WASHINGTON UNIVERSITY · PI YOKOYAMA, WAYNE M. · 2003 to 2013
$80.9M
Monoclonal Antibody Therapy for West Nile VirusU01AI061373 · NIAID · WASHINGTON UNIVERSITY · PI DIAMOND, MICHAEL S · 2005 to 2009
$5.1M
NIAID NIH HHS U01 AI061373NIAID NIH HHS U01 AI 61373NIAID NIH HHS U54 AI057160NIAID NIH HHS U54 AI 57160
6 · The paper itself

Abstract

The flavivirus nonstructural protein NS1 is a highly conserved secreted glycoprotein that does not package with the virion. Immunization with NS1 elicits a protective immune response against yellow fever, dengue, and tick-borne encephalitis flaviviruses through poorly defined mechanisms. In this study, we purified a recombinant, secreted form of West Nile virus (WNV) NS1 glycoprotein from baculovirus-infected insect cells and generated 22 new NS1-specific monoclonal antibodies (MAbs). By performing competitive binding assays and expressing truncated NS1 proteins on the surface of yeast (Saccharomyces cerevisiae) and in bacteria, we mapped 21 of the newly generated MAbs to three NS1 fragments. Prophylaxis of C57BL/6 mice with any of four MAbs (10NS1, 14NS1, 16NS1, and 17NS1) strongly protected against lethal WNV infection (75 to 95% survival, respectively) compared to saline-treated controls (17% survival). In contrast, other anti-NS1 MAbs of the same isotype provided no significant protection. Notably, 14NS1 and 16NS1 also demonstrated marked efficacy as postexposure therapy, even when administered as a single dose 4 days after infection. Virologic analysis showed that 17NS1 protects at an early stage in infection through a C1q-independent and Fc gamma receptor-dependent pathway. Interestingly, 14NS1, which maps to a distinct region on NS1, protected through a C1q- and Fc gamma receptor-independent mechanism. Overall, our data suggest that distinct regions of NS1 can elicit protective humoral immunity against WNV through different mechanisms.

Indexed as

AedesAnimalsAntibodies, MonoclonalAntibodies, ViralAntigens, ViralBase SequenceCell LineCricetinaeDNA, ViralEpitope MappingMiceMice, Inbred C57BLReceptors, IgGRecombinant ProteinsViral Nonstructural ProteinsWest Nile FeverAntibodies, MonoclonalAntibodies, ViralAntigens, ViralDNA, ViralNS1 protein, FlavivirusReceptors, IgGRecombinant ProteinsViral Nonstructural Proteins

Identifiers

PMID16415011
PMCPMC1346945
OpenAlexW2141375220

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.