Evidence map›Paper›PMID 19474790›Full record

ArticleNature2009

Dual nature of the adaptive immune system in lampreys.

Peng Guo, Masayuki Hirano, Brantley R Herrin, Jianxu Li, Cuiling Yu, Andrea Sadlonova, Max D Cooper

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Nature, 2009. 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 150 papers.

0numbers the graph read from it
0cells of the map it votes in
150citing papers in PubMed
11.6field-weighted citation impact, top 1% 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

150 citing papers in PubMed, 323 citations in OpenAlex.

  1. Article
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  4. Animals have expanded the evolutionary legacy of unicellular ancestors in blood cells.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  15. Autoregulated splicing ofScience (New York, N.Y.) · 2024
    Article
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  18. Article
  19. Review
  20. Review

90 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Peng GuoEmory Vaccine Center and Department of Pathology and Laboratory Medicine, Emory University, 1462 Clifton Road North-East, Atlanta, Georgia 30322, USA.
Masayuki Hirano
Brantley R Herrin
Jianxu Li
Cuiling Yu
Andrea Sadlonova
Max D Cooper
Emory University · US

Funding

IMMUNOLOGIC DISEASES AND BASIC IMMUNOLOGYT32AI007051 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Laurie Ellen Harrington · 1985 to 2026
$13.1M
Characterization of the Lamprey Adaptive Immune SystemR01AI072435 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Max Dale Cooper · 2007 to 2026
$8.1M
NIAID NIH HHS R01 AI072435NIAID NIH HHS T32 AI007051
6 · The paper itself

Abstract

Jawless vertebrates use variable lymphocyte receptors (VLR) comprised of leucine-rich-repeat (LRR) segments as counterparts of the immunoglobulin-based receptors that jawed vertebrates use for antigen recognition. Highly diverse VLR genes are somatically assembled by the insertion of variable LRR sequences into incomplete germline VLRA and VLRB genes. Here we show that in sea lampreys (Petromyzon marinus) VLRA and VLRB anticipatory receptors are expressed by separate lymphocyte populations by monoallelic VLRA or VLRB assembly, together with expression of cytosine deaminase 1 (CDA1) or 2 (CDA2), respectively. Distinctive gene expression profiles for VLRA(+) and VLRB(+) lymphocytes resemble those of mammalian T and B cells. Although both the VLRA and the VLRB cells proliferate in response to antigenic stimulation, only the VLRB lymphocytes bind native antigens and differentiate into VLR antibody-secreting cells. Conversely, VLRA lymphocytes respond preferentially to a classical T-cell mitogen and upregulate the expression of the pro-inflammatory cytokine genes interleukin-17 (IL-17) and macrophage migration inhibitory factor (MIF). The finding of T-like and B-like lymphocytes in lampreys offers new insight into the evolution of adaptive immunity.

Indexed as

AllelesAmino Acid MotifsAnimalsAntigensBiological EvolutionCytosine DeaminaseFish ProteinsGene Expression ProfilingInterleukin-17LampreysLymphocytesMacrophage Migration-Inhibitory FactorsMitogensPhytohemagglutininsReceptors, ImmunologicAntigensCytosine DeaminaseFish ProteinsInterleukin-17Macrophage Migration-Inhibitory FactorsMitogensPhytohemagglutininsReceptors, Immunologic

Identifiers

PMID19474790
PMCPMC2714547
OpenAlexW2167855218

What OpenQuestion holds

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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.