Evidence map›Paper›PMID 21274000›Full record

ArticleLeukemia2011

CD200 expression suppresses natural killer cell function and directly inhibits patient anti-tumor response in acute myeloid leukemia.

S J Coles, E C Y Wang, S Man, R K Hills, A K Burnett, A Tonks, R L Darley

Registry-linked trialOpen access · bronzeAbstract readComparative Study
In one paragraph

Article in Leukemia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06258629 (Resident of Clinical Pathology in Sohag Oncology Center), which is not on this map. Cited by 101 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 1 pooled it
4.0field-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.

NCT06258629 unknown statusnot on this mapstarted 2024, after this paper: background citation

Resident of Clinical Pathology in Sohag Oncology Center

Typeobservational_patient_registrySponsorSohag UniversityRan2024 to 2025Enrolled40ConditionsHematological MalignanciesArmsFlowcytometry on bone marrow aspiration
3 · Its place in the literature

Who cites it

101 citing papers in PubMed, 1 synthesis or guideline pooled it, 174 citations in OpenAlex.

  1. The M2 macrophage markerOncoimmunology · 2020
    Pooled it
  2. Trial
  3. Trial
  4. Review
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  6. Review
  7. Article
  8. Article
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  10. Article
  11. Article
  12. Adoptive NK cell therapy in AML: progress and challenges.Clinical and experimental medicine · 2025
    Review
  13. Review
  14. Review
  15. Bone marrow immune cells and drug resistance in acute myeloid leukemia.Experimental biology and medicine (Maywood, N.J.) · 2025
    Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Review

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

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

7 authors at 1 institution in 1 country.

S J ColesDepartment of Medical Genetics, Haematology and Pathology, Cardiff University, Cardiff, UK.
E C Y Wang
S Man
R K Hills
A K Burnett
A Tonks
R L Darley
Cardiff University · GB

Funding

Medical Research Council G0901119Medical Research Council G0901119(91900)
6 · The paper itself

Abstract

Upregulation of the immunosuppressive cell surface glycoprotein, CD200, is a common feature of acute myeloid leukemia (AML) and is associated with poor patient outcome. We investigated whether CD200 overexpression on AML cells could specifically compromise patient natural killer (NK) cell anti-tumor responses. We found that CD200(hi) patients showed a 50% reduction in the frequency of activated NK cells (CD56(dim)CD16(+)) compared with CD200(lo) patients. Additionally, NK receptor expression (NKp44 and NKp46) on these cells was also significantly downregulated in CD200(hi) patients. To assess whether NK cell activity was directly influenced by CD200 expression, we examined the effect of ectopic expression of CD200. These assays revealed that both NK cell cytolytic activity and interferon-γ response were significantly reduced toward CD200(+) leukemic targets and that these targets showed increased survival compared with CD200(-) cells. Similarly, NK cells isolated from AML patients were less functionally active toward CD200(hi) autologous blasts from both cytolytic and immunoregulatory perspectives. Finally, blocking CD200 alone was sufficient to recover a significant proportion of NK cell cytolytic activity. Together, these findings provide the first evidence that CD200 has a direct and significant suppressive influence on NK cell activity in AML patients and may contribute to the increased relapse rate in CD200(+) patients.

Indexed as

Antigens, CDBlast CrisisCase-Control StudiesCells, CulturedCytotoxicity, ImmunologicFlow CytometryHumansImmunophenotypingKiller Cells, NaturalLeukemia, Myeloid, AcuteAntigens, CDantigens, CD200

Identifiers

PMID21274000
PMCPMC3093357
OpenAlexW2011977826

What OpenQuestion holds

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Registered trials

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.