Evidence map›Paper›PMID 26401006›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2015

Differential Roles of Chemokines CCL2 and CCL7 in Monocytosis and Leukocyte Migration during West Nile Virus Infection.

Susana V Bardina, Daniela Michlmayr, Kevin W Hoffman, Christopher J Obara, Janet Sum, Israel F Charo, Wuyuan Lu, Alexander G Pletnev, Jean K Lim

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
11.9field-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

71 citing papers in PubMed, 113 citations in OpenAlex.

  1. Trial
  2. Article
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  4. Article
  5. Article
  6. Review
  7. Unraveling the complexities of neurotropic virus infection and immune evasion.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  8. Article
  9. Article
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  12. Article
  13. Review
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  15. Observational
  16. Review
  17. CCR2Cell reports · 2024
    Article
  18. Article
  19. Article
  20. Article

11 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

9 authors at 5 institutions in 1 country.

Susana V BardinaDepartment of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029;
Daniela MichlmayrDepartment of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029;
Kevin W HoffmanDepartment of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029;
Christopher J ObaraLaboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892;
Janet SumDepartment of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029;
Israel F CharoCardiovascular Research Institute, Department of Medicine, University of California San Francisco, San Francisco, CA 94549;
Wuyuan LuInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201; Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201; and.
Alexander G PletnevLaboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.
Jean K LimDepartment of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029; jean.lim@mssm.edu.
Icahn School of Medicine at Mount Sinai · USNational Institute of Allergy and Infectious Diseases · USNational Institutes of Health · USUniversity of Maryland, Baltimore · USUniversity of San Francisco · US

Funding

Development Of New Approaches To Vaccines Against TBEV and West Nile VirusZIAAI000637 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI PLETNEV, ALEXANDER · 2009 to 2022
$19.1M
TRAINING PROGRAM: MECHANISMS OF VIRUS-HOST INTERACTIONST32AI007647 · NIAID · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI Domenico Tortorella · 2000 to 2026
$11.5M
Chemokine regulation of myeloid cell populations during West Nile virus infectionR01AI108715 · NIAID · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI LIM, JEAN KYOU · 2014 to 2017
$1.4M
Chemokine regulation of inflammatory monocytes during West Nile virus infectionF31AI110071 · NIAID · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BARDINA, SUSANA · 2014 to 2016
$109k
NIAID NIH HHS F31 AI110071NIAID NIH HHS F31AI110071NIAID NIH HHS R01 AI108715NIAID NIH HHS R01AI108715NIAID NIH HHS T32 AI007647NIAID NIH HHS T32AI007647
6 · The paper itself

Abstract

West Nile virus (WNV) is a re-emerging pathogen and the leading cause of epidemic encephalitis in the United States. Inflammatory monocytes are a critical component of the cellular infiltrate found in the CNS during WNV encephalitis, although the molecular cues involved in their migration are not fully understood. In mice, we previously showed that WNV infection induces a CCR2-dependent monocytosis that precedes monocyte migration into the CNS. Currently, the relative contribution of the CCR2 ligands, chemokines CCL2 and CCL7, in directing monocyte mobilization and leukocyte migration into the CNS is unclear. In this study, we demonstrate that, although both CCL2 and CCL7 are required for efficient monocytosis and monocyte accumulation in the CNS, only CCL7 deficiency resulted in increased viral burden in the brain and enhanced mortality. The enhanced susceptibility in the absence of CCL7 was associated with the delayed migration of neutrophils and CD8(+) T cells into the CNS compared with WT or Ccl2(-/-) mice. To determine whether CCL7 reconstitution could therapeutically alter the survival outcome of WNV infection, we administered exogenous CCL7 i.v. to WNV-infected Ccl7(-/-) mice and observed a significant increase in monocytes and neutrophils, but not CD8(+) T cells, within the CNS, as well as an enhancement in survival compared with Ccl7(-/-) mice treated with a linear CCL7 control peptide. Our experiments suggest that CCL7 is an important protective signal involved in leukocyte trafficking during WNV infection, and it may have therapeutic potential for the treatment of acute viral infections of the CNS.

Indexed as

Cell MovementAnimalsBrainCD8-Positive T-LymphocytesCells, CulturedChemokine CCL2Chemokine CCL7Chlorocebus aethiopsEncephalitis, ViralEnzyme-Linked Immunosorbent AssayFlow CytometryGene ExpressionHost-Pathogen InteractionsLeukocytosisMice, Inbred C57BLMice, KnockoutCcl2 protein, mouseCcl7 protein, mouseChemokine CCL2Chemokine CCL7

Identifiers

PMID26401006
PMCPMC4610864
OpenAlexW2243134555

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.