Evidence map›Paper›PMID 25911759›Full record

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

Early effector cells survive the contraction phase in malaria infection and generate both central and effector memory T cells.

Michael M Opata, Victor H Carpio, Samad A Ibitokou, Brian E Dillon, Joshua M Obiero, Robin Stephens

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 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

25 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
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  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Transcriptome dynamics of CD4Nature immunology · 2020
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. T cell-mediated immunity to malaria.Nature reviews. Immunology · 2019
    Review
  17. Development of B Cell Memory in Malaria.Frontiers in immunology · 2019
    Review
  18. Article
  19. Review
  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

6 authors at 1 institution in 1 country.

Michael M OpataDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and.
Victor H CarpioDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555.
Samad A IbitokouDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and.
Brian E DillonDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and.
Joshua M ObieroDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and.
Robin StephensDivision of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555; and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555 rostephe@utmb.edu.
The University of Texas Medical Branch at Galveston · US

Funding

Training in Emerging Infectious Diseases and BiodefenseT32AI007536 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI WHITE, ARTHUR CLINTON · 1998 to 2013
$4.1M
Maintenance vs Programming in Th1 Memory Cell Development in P. Chabaudi MalariaR01AI089953 · NIAID · UNIVERSITY OF TEXAS MED BR GALVESTON · PI STEPHENS, ROBIN · 2011 to 2015
$1.8M
NIAID NIH HHS R01 AI089953NIAID NIH HHS R01AI08995304NIAID NIH HHS R01AI08995304S1NIAID NIH HHS T32 AI007536NIAID NIH HHS T32AI7536-15
6 · The paper itself

Abstract

CD4 T cells orchestrate immunity against blood-stage malaria. However, a major challenge in designing vaccines to the disease is poor understanding of the requirements for the generation of protective memory T cells (Tmem) from responding effector T cells (Teff) in chronic parasite infection. In this study, we use a transgenic mouse model with T cells specific for the merozoite surface protein (MSP)-1 of Plasmodium chabaudi to show that activated T cells generate three distinct Teff subsets with progressive activation phenotypes. The earliest observed Teff subsets (CD127(-)CD62L(hi)CD27(+)) are less divided than CD62L(lo) Teff and express memory genes. Intermediate (CD62L(lo)CD27(+)) effector subsets include the most multicytokine-producing T cells, whereas fully activated (CD62L(lo)CD27(-)) late effector cells have a terminal Teff phenotype (PD-1(+), Fas(hi), AnnexinV(+)). We show that although IL-2 promotes expansion, it actually slows terminal effector differentiation. Using adoptive transfer, we show that only early Teff survive the contraction phase and generate the terminal late Teff subsets, whereas in uninfected recipients, they become both central and effector Tmem. Furthermore, we show that progression toward full Teff activation is promoted by increased duration of infection, which in the long-term promotes Tem differentiation. Therefore, we have defined markers of progressive activation of CD4 Teff at the peak of malaria infection, including a subset that survives the contraction phase to make Tmem, and show that Ag and cytokine levels during CD4 T cell expansion influence the proportion of activated cells that can survive contraction and generate memory in malaria infection.

Indexed as

Adoptive TransferAnimalsCD4-Positive T-LymphocytesCell DifferentiationCytokinesImmunologic MemoryInterferon-gammaInterleukin-2Interleukin-7 Receptor alpha SubunitL-SelectinLymphocyte ActivationMalariaMerozoite Surface Protein 1MiceMice, Inbred BALB CMice, Inbred C57BLCytokinesInterferon-gammaInterleukin-2Interleukin-7 Receptor alpha SubunitL-SelectinMerozoite Surface Protein 1Tumor Necrosis Factor Receptor Superfamily, Member 7

Identifiers

PMID25911759
PMCPMC4433766
OpenAlexW1796246504

What OpenQuestion holds

Textmetadata
LicenceTDM
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.