Evidence map›Paper›PMID 14662909›Full record

ArticleThe Journal of experimental medicine2003

A critical role for induced IgM in the protection against West Nile virus infection.

Michael S Diamond, Elizabeth M Sitati, Lindzy D Friend, Stephen Higgs, Bimmi Shrestha, Michael Engle

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 187 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
187citing papers in PubMed, 2 pooled it
16.5field-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

187 citing papers in PubMed, 2 syntheses or guidelines pooled it, 305 citations in OpenAlex.

  1. Pooled it
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  15. Article
  16. Evolution of Zika virus inVirus evolution · 2025
    Article
  17. Article
  18. Review
  19. Review
  20. Article

127 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

6 authors at 2 institutions in 1 country.

Michael S DiamondWashington University School of Medicine, 660 S. Euclid Ave, Box 8051, St Louis, MO 63110, USA. diamond@borcim.wustl.edu
Elizabeth M Sitati
Lindzy D Friend
Stephen Higgs
Bimmi Shrestha
Michael Engle
Washington University in St. Louis · USThe University of Texas Medical Branch at Galveston · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In humans, the elderly and immunocompromised are at greatest risk for disseminated West Nile virus (WNV) infection, yet the immunologic basis for this remains unclear. We demonstrated previously that B cells and IgG contributed to the defense against disseminated WNV infection (Diamond, M.S., B. Shrestha, A. Marri, D. Mahan, and M. Engle. 2003. J. Virol. 77:2578-2586). In this paper, we addressed the function of IgM in controlling WNV infection. C57BL/6J mice (sIgM-/-) that were deficient in the production of secreted IgM but capable of expressing surface IgM and secreting other immunoglobulin isotypes were vulnerable to lethal infection, even after inoculation with low doses of WNV. Within 96 h, markedly higher levels of infectious virus were detected in the serum of sIgM-/- mice compared with wild-type mice. The enhanced viremia correlated with higher WNV burdens in the central nervous system, and was also associated with a blunted anti-WNV IgG response. Passive transfer of polyclonal anti-WNV IgM or IgG protected sIgM-/- mice against mortality, although administration of comparable amounts of a nonneutralizing monoclonal anti-WNV IgM provided no protection. In a prospective analysis, a low titer of anti-WNV IgM antibodies at day 4 uniformly predicted mortality in wild-type mice. Thus, the induction of a specific, neutralizing IgM response early in the course of WNV infection limits viremia and dissemination into the central nervous system, and protects against lethal infection.

Indexed as

AnimalsAntibodies, ViralImmunoglobulin MKidneyMiceMice, Inbred C57BLSpleenViral LoadViremiaWest Nile FeverAntibodies, ViralImmunoglobulin M

Identifiers

PMID14662909
PMCPMC2194144
OpenAlexW2109403620

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.