Evidence map›Paper›PMID 18997862›Full record

ArticlePloS one2008

Identification of CD4(-)CD8(-) double-negative natural killer T cell precursors in the thymus.

Nyambayar Dashtsoodol, Hiroshi Watarai, Sakura Sakata, Masaru Taniguchi

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
  2. Article
  3. Invariant natural killer T cells in lung diseases.Experimental & molecular medicine · 2023
    Review
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  5. Review
  6. Article
  7. 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

4 authors at 1 institution in 1 country.

Nyambayar DashtsoodolLaboratory for Immune Regulation, RIKEN Research Center for Allergy and Immunology, Yokohama, Kanagawa, Japan.
Hiroshi Watarai
Sakura Sakata
Masaru Taniguchi
RIKEN Center for Integrative Medical Sciences · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is well known that CD1d-restricted Valpha14 invariant natural killer T (NKT) cells are derived from cells in the CD4(+)CD8(+) double-positive (DP) population in the thymus. However, the developmental progression of NKT cells in the earlier stages remains unclear, and the possible existence of NKT cell presursors in the earlier stages than DP stage remains to be tested. PRINCIPAL

findingsHere, we demonstrate that NKT cell precursors that express invariant Valpha14-Jalpha18 transcripts but devoid of surface expression of the invariant Valpha14 receptor are present in the late CD4(-)CD8(-) double-negative (DN)4 stage and have the potential to generate mature NKT cells in both in vivo and in vitro experimental conditions. Moreover, the DN4 population in CD1d knock-out (CD1dKO) mice was similar to those with an NKT cell potential in wild-type (WT) C57BL/6 (B6) mice, but failed to develop into NKT cells in vitro. However, these precursors could develop into NKT cells when co-cultured with normal thymocytes or in an in vivo experimental setting, indicating that functional NKT cell precursors are present in CD1dKO mice.

conclusionsTogether, these results demonstrate that thymic DN4 fraction contains NKT cell precursors. Our findings provide new insights into the early development of NKT cells prior to surface expression of the invariant Valpha14 antigen receptor and suggest the possible alternative developmental pathway of NKT cells.

Indexed as

AnimalsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCells, CulturedCytokinesGene Expression ProfilingMiceMice, Inbred C57BLMice, KnockoutNatural Killer T-CellsPhenotypeReceptors, Antigen, T-CellStem CellsThymus GlandCytokinesReceptors, Antigen, T-Cell

Identifiers

PMID18997862
PMCPMC2577011
OpenAlexW2087499202

What OpenQuestion holds

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Registered trials

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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.