Evidence map›Paper›PMID 30093911›Full record

ArticleImmunity & ageing : I & A2018

Virtual memory cells make a major contribution to the response of aged influenza-naïve mice to influenza virus infection.

Kathleen G Lanzer, Tres Cookenham, William W Reiley, Marcia A Blackman

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Immunity & ageing : I & A, 2018. 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 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Bystander CD8Frontiers in immunology · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Virtual Memory CD8Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2022
    Review
  12. Article
  13. Review
  14. Article
  15. Signals for antigen-independent differentiation of memory CD8Cellular and molecular life sciences : CMLS · 2021
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Low-Avidity CD4Immunity · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kathleen G LanzerTrudeau Institute, 154 Algonquin Avenue, Saranac Lake, NY 12983 USA.
Tres CookenhamTrudeau Institute, 154 Algonquin Avenue, Saranac Lake, NY 12983 USA.
William W ReileyTrudeau Institute, 154 Algonquin Avenue, Saranac Lake, NY 12983 USA.
Marcia A BlackmanTrudeau Institute, 154 Algonquin Avenue, Saranac Lake, NY 12983 USA.
Trudeau Institute · US

Funding

MOLECULAR BIOLOGY COREP01AG021600 · NIA · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI HAYNES, LAURA · 2003 to 2016
$24.4M
Aging, T cell repertoire, and cellular immunity to influenza virusR01AG039485 · NIA · TRUDEAU INSTITUTE, INC. · PI BLACKMAN, MARCIA A · 2011 to 2015
$1.2M
NIA NIH HHS P01 AG021600NIA NIH HHS R01 AG039485
6 · The paper itself

Abstract

backgroundA diverse repertoire of naïve T cells is thought to be essential for a robust response to new infections. However, a key aspect of aging of the T cell compartment is a decline in numbers and diversity of peripheral naïve T cells. We have hypothesized that the age-related decline in naïve T cells forces the immune system to respond to new infections using cross-reactive memory T cells generated to previous infections that dominate the aged peripheral T cell repertoire.

resultsHere we confirm that the CD8 T cell response of aged, influenza-naïve mice to primary infection with influenza virus is dominated by T cells that derive from the memory T cell pool. These cells exhibit the phenotypic characteristics of virtual memory cells rather than true memory cells. Furthermore, we find that the repertoire of responding CD8 T cells is constrained compared with that of young mice, and differs significantly between individual aged mice. After infection, these virtual memory CD8 T cells effectively develop into granzyme-producing effector cells, and clear virus with kinetics comparable to naïve CD8 T cells from young mice.

conclusionsThe response of aged, influenza-naive mice to a new influenza infection is mediated largely by memory CD8 T cells. However, unexpectedly, they have the phenotype of VM cells. In response to de novo influenza virus infection, the VM cells develop into granzyme-producing effector cells and clear virus with comparable kinetics to young CD8 T cells.

Indexed as

AgeingInfluenzaMouse modelT cell receptor repertoireTrue memory (TM) T cellsVirtual memory (VM) T cells

Identifiers

PMID30093911
PMCPMC6081820
OpenAlexW2886518661

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.