Evidence map›Paper›PMID 17518516›Full record

ArticlePLoS medicine2007

Understanding the slow depletion of memory CD4+ T cells in HIV infection.

Andrew Yates, Jaroslav Stark, Nigel Klein, Rustom Antia, Robin Callard

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

35 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
  2. Article
  3. Vaccines · 2024
    Review
  4. Article
  5. Review
  6. Modeling T Cell Fate.Annual review of immunology · 2023
    Review
  7. Review
  8. Article
  9. Review
  10. The Rules of Human T Cell FateFrontiers in immunology · 2020
    Article
  11. Review
  12. Review
  13. Review
  14. Modeling Kick-Kill Strategies toward HIV Cure.Frontiers in immunology · 2017
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Andrew YatesDepartment of Biology, Emory University, Atlanta, Georgia, United States of America. ayates2@emory.edu
Jaroslav Stark
Nigel Klein
Rustom Antia
Robin Callard
University College London · GBEmory University · USImperial College London · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundThe asymptomatic phase of HIV infection is characterised by a slow decline of peripheral blood CD4(+) T cells. Why this decline is slow is not understood. One potential explanation is that the low average rate of homeostatic proliferation or immune activation dictates the pace of a "runaway" decline of memory CD4(+) T cells, in which activation drives infection, higher viral loads, more recruitment of cells into an activated state, and further infection events. We explore this hypothesis using mathematical models. METHODS AND

findingsUsing simple mathematical models of the dynamics of T cell homeostasis and proliferation, we find that this mechanism fails to explain the time scale of CD4(+) memory T cell loss. Instead it predicts the rapid attainment of a stable set point, so other mechanisms must be invoked to explain the slow decline in CD4(+) cells.

conclusionsA runaway cycle in which elevated CD4(+) T cell activation and proliferation drive HIV production and vice versa cannot explain the pace of depletion during chronic HIV infection. We summarize some alternative mechanisms by which the CD4(+) memory T cell homeostatic set point might slowly diminish. While none are mutually exclusive, the phenomenon of viral rebound, in which interruption of antiretroviral therapy causes a rapid return to pretreatment viral load and T cell counts, supports the model of virus adaptation as a major force driving depletion.

Indexed as

Immunologic MemoryModels, ImmunologicalCD4-Positive T-LymphocytesCell ProliferationDisease ProgressionHIV InfectionsHomeostasisHumansThymus GlandViral Load

Identifiers

PMID17518516
PMCPMC1872038
OpenAlexW2122906941

What OpenQuestion holds

Textmetadata
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.