Evidence map›Paper›PMID 24376836›Full record

ArticlePloS one2013

Identical strength of the T cell responses against E2, nsP1 and capsid CHIKV proteins in recovered and chronic patients after the epidemics of 2005-2006 in La Reunion Island.

Jean-Jacques Hoarau, Frederick Gay, Olivier Pellé, Assia Samri, Marie-Christine Jaffar-Bandjee, Philippe Gasque, Brigitte Autran

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

32 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Chikungunya virus-specific CD4Cell reports. Medicine · 2025
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  9. Review
  10. Chikungunya Virus Vaccines: Platforms, Progress, and Challenges.Current topics in microbiology and immunology · 2022
    Review
  11. Review
  12. Chronic Chikungunya Virus Disease.Current topics in microbiology and immunology · 2022
    Article
  13. Article
  14. Review
  15. Article
  16. Chikungunya Virus Evades Antiviral CD8Journal of virology · 2020
    Article
  17. Review
  18. Immunopathogenesis of alphaviruses.Advances in virus research · 2020
    Article
  19. Article
  20. Article
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 4 institutions in 2 countries.

Jean-Jacques HoarauImmunopathology and infectious diseases research grouping, GRI/IRG EA4517, University of La Reunion and Centre Hospitalier Universitaire (CHU North Felix-Guyon), Saint-Denis, Louisiana, United States of America Reunion - France.
Frederick GayDepartment of Medical Biology, Parasitology, Pitié-Salpêtrière Hospital, Pierre and Marie Curie University, Paris, France.
Olivier PelléLaboratory of Immunity and Infection, Inserm U945, Paris, France.
Assia SamriLaboratory of Immunity and Infection, Inserm U945, Paris, France.
Marie-Christine Jaffar-BandjeeImmunopathology and infectious diseases research grouping, GRI/IRG EA4517, University of La Reunion and Centre Hospitalier Universitaire (CHU North Felix-Guyon), Saint-Denis, Louisiana, United States of America Reunion - France ; Biology / Microbiology / Virology / Biochemistry Units, Centre Hospitalier Universitaire (CHU North Felix-Guyon) and University of La Reunion, Saint-Denis, Louisiana, United States of America Reunion - France.
Philippe GasqueImmunopathology and infectious diseases research grouping, GRI/IRG EA4517, University of La Reunion and Centre Hospitalier Universitaire (CHU North Felix-Guyon), Saint-Denis, Louisiana, United States of America Reunion - France.
Brigitte AutranLaboratory of Immunity and Infection, Inserm U945, Paris, France ; Laboratory of Immunity and Infection, UPMC University Paris 06, Unité mixte de recherche-S945, Paris, France ; Inserm, IFR 113, Immunité-Cancer-Infection, Paris, France.
Inserm · FRUniversity of Reunion Island · RECentre Hospitalier Universitaire de La Réunion · FRPitié-Salpêtrière Hospital · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To characterize the immunity developed by patients infected by chikungunya virus (CHIKV), we studied the intensity and specificity of CHIKV-specific T cells mediated responses in chronic and recovered patients at 12 to 24 months post-infection. T cells were challenged in vitro against CHIKV synthetic peptides covering the length of three viral proteins, capsid, E2 and nsP1 proteins as well as all inactivated virus particles. Cytokine production was assessed by ELISPOT and intracellular labeling. T cells producing IFN-γ were detected against CHIKV in 85% patient's cells either by direct ELISPOT assay (69% of patients) or after expansion of memory T cells allowing the detection of both CD4 and CD8 specific-T cells in 16% additional cases. The IFN-γ response was mainly engaged in response to nsP1 or E2 (52% and 46% cases, respectively) but in only 27% cases against the capsid. The anti-E2 response represented half the magnitude of the total CHIKV IFN-γ production and was mainly directed against the C-terminal half part of the protein. Almost all patients had conserved a T cell specific response against CHIKV with a clear hierarchy of T cell responses (CD8 > CD4) engaged against E2 > nsP1 > capsid. More importantly, the intensity of responses was not significantly different between recovered and chronic patients. These findings constitute key elements to a better understanding of patient T cell immunoreactivity against CHIKV and argue against a possible defect of T cell immunoresponse in the chronicity post-CHIKV infection.

Indexed as

Alphavirus InfectionsBlotting, WesternCapsid ProteinsChikungunya FeverCytokinesEnzyme-Linked Immunospot AssayHumansImmunity, CellularReunionStatistics, NonparametricTime FactorsT-LymphocytesViral Envelope ProteinsViral Nonstructural ProteinsCapsid ProteinsCytokinesViral Envelope ProteinsViral Nonstructural Proteins

Identifiers

PMID24376836
PMCPMC3871564
OpenAlexW1971143002

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.