Evidence map›Paper›PMID 26745507›Full record

ArticlePLoS pathogens2016

A Higher Activation Threshold of Memory CD8+ T Cells Has a Fitness Cost That Is Modified by TCR Affinity during Tuberculosis.

Stephen M Carpenter, Cláudio Nunes-Alves, Matthew G Booty, Sing Sing Way, Samuel M Behar

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 52 citations in OpenAlex.

  1. Antigen-experienced airway CD8Science advances · 2026
    Article
  2. Restricted MHC-II trafficking inbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. iScience · 2023
    Article
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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

5 authors at 5 institutions in 2 countries.

Stephen M CarpenterDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Cláudio Nunes-AlvesDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Matthew G BootyDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Sing Sing WayDivision of Infectious Diseases, Cincinnati Children's Hospital, Cincinnati, Ohio, United States of America.
Samuel M BeharDepartment of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Brigham and Women's Hospital · USCincinnati Children's Hospital Medical Center · USHarvard University · USUniversity of Massachusetts Chan Medical School · USUniversity of Minho · PT

Funding

The impact of HIV viral diversity and cellular immunity on HIV pathogenesisP30AI060354 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI ROBERT A. PARKER · 2004 to 2026
$94.4M
INFECTIOUS DISEASE AND BASIC MICROBIOLOGICAL MECHANISMST32AI007061 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI Marcia B Goldberg · 1985 to 2026
$12.1M
Regulation of CD8+ T cell immunity to tuberculosis (pending title)R01AI106725 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BEHAR, SAMUEL M · 2013 to 2022
$6.1M
NIAID NIH HHS AI T32 007061NIAID NIH HHS P30 AI 060354NIAID NIH HHS P30 AI060354NIAID NIH HHS R01 AI106725NIAID NIH HHS T32 AI007061
6 · The paper itself

Abstract

T cell vaccines against Mycobacterium tuberculosis (Mtb) and other pathogens are based on the principle that memory T cells rapidly generate effector responses upon challenge, leading to pathogen clearance. Despite eliciting a robust memory CD8+ T cell response to the immunodominant Mtb antigen TB10.4 (EsxH), we find the increased frequency of TB10.4-specific CD8+ T cells conferred by vaccination to be short-lived after Mtb challenge. To compare memory and naïve CD8+ T cell function during their response to Mtb, we track their expansions using TB10.4-specific retrogenic CD8+ T cells. We find that the primary (naïve) response outnumbers the secondary (memory) response during Mtb challenge, an effect moderated by increased TCR affinity. To determine whether the expansion of polyclonal memory T cells is restrained following Mtb challenge, we used TCRβ deep sequencing to track TB10.4-specific CD8+ T cells after vaccination and subsequent challenge in intact mice. Successful memory T cells, defined by their clonal expansion after Mtb challenge, express similar CDR3β sequences suggesting TCR selection by antigen. Thus, both TCR-dependent and -independent factors affect the fitness of memory CD8+ responses. The impaired expansion of the majority of memory T cell clonotypes may explain why some TB vaccines have not provided better protection.

Indexed as

Adoptive TransferAnimalsCD8-Positive T-LymphocytesCell SeparationDisease Models, AnimalEnzyme-Linked Immunosorbent AssayFlow CytometryHigh-Throughput Nucleotide SequencingImmunologic MemoryLymphocyte ActivationMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicReceptors, Antigen, T-CellTuberculosisReceptors, Antigen, T-CellTuberculosis Vaccines

Identifiers

PMID26745507
PMCPMC4706326
OpenAlexW2223765545

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.